------------------------------------------------------------------------------
-* Prevent AC_REQUIRE from interrupting messages. I have a patch to do this,
-but it makes autoconf take 3 times as long to run.
-
-------------------------------------------------------------------------------
-
-* Split up AC_SUBST substitutions using a loop to accomodate shells
- with severely limited here document sizes, if it turns out to be a problem.
- I'm not sure whether the limit is on lines or bytes; if bytes, it
- will be less of a problem than it was with the long lines used for
- creating a header file.
-
-------------------------------------------------------------------------------
-
-* Look at Jim Avera's code to allow [ and ] in egrep patterns and
-AC_DEFINE args.
-
-------------------------------------------------------------------------------
-
* Replace the current ad-hoc macros for Dynix, SCO, ISC, etc.
Perhaps there should be macros for certain functions (statfs, wait) or
classes of functions (POSIX, NIS) that do everything necessary, instead.
------------------------------------------------------------------------------
+* Split up AC_SUBST substitutions using a loop to accomodate shells
+ with severely limited here document sizes, if it turns out to be a problem.
+ I'm not sure whether the limit is on lines or bytes; if bytes, it
+ will be less of a problem than it was with the long lines used for
+ creating a header file.
+
+------------------------------------------------------------------------------
+
+* Look at Jim Avera's code to allow [ and ] in egrep patterns and
+AC_DEFINE args.
+
+------------------------------------------------------------------------------
+
* Supply a template Makefile.in that people can adapt (what GNU hello
was going to be).
dnl Franc,ois Pinard, Karl Berry, Richard Pixley, Ian Lance Taylor,
dnl Roland McGrath, Noah Friedman, and david d zuhn.
dnl
-changequote([, ])dnl
-undefine([eval])dnl
-undefine([include])dnl
-undefine([shift])dnl
-undefine([format])dnl
-dnl
+divert(-1)dnl Throw away output until AC_INIT is called.
+changequote([, ])
+
+define(AC_ACVERSION, 1.110)
+
dnl Some old m4's don't support m4exit. But they provide
dnl equivalent functionality by core dumping because of the
dnl long macros we define.
ifdef([__gnu__], , [errprint(Autoconf requires GNU m4.
Install it before installing Autoconf or set the
M4 environment variable to its path name.
-)m4exit(2)])dnl
-dnl
-define(AC_ACVERSION, 1.109)dnl
-dnl This is defined by the --version option of the autoconf script.
-ifdef([AC_PRINT_VERSION], [Autoconf version AC_ACVERSION
-m4exit(0)])dnl
-dnl
-dnl
+)m4exit(2)])
+
+undefine([eval])
+undefine([include])
+undefine([shift])
+undefine([format])
+
+
dnl ### Controlling Autoconf operation
-dnl
-dnl
+
+
dnl m4 output diversions. We let m4 output them all in order at the end,
dnl except that we explicitly undivert AC_DIVERSION_SED.
-dnl
+
dnl AC_DIVERSION_NOTICE - 1 (= 0) AC_REQUIRE'd #!/bin/sh line
define(AC_DIVERSION_NOTICE, 1)dnl copyright notice & option help strings
define(AC_DIVERSION_INIT, 2)dnl initialization code
define(AC_DIVERSION_NORMAL_2, 6)dnl AC_REQUIRE'd code, 2 level deep
define(AC_DIVERSION_NORMAL_1, 7)dnl AC_REQUIRE'd code, 1 level deep
define(AC_DIVERSION_NORMAL, 8)dnl the tests and output code
-dnl
+
dnl Change the diversion stream to STREAM, while stacking old values.
dnl AC_DIVERT_PUSH(STREAM)
define(AC_DIVERT_PUSH,
[pushdef([AC_DIVERSION_CURRENT], $1)dnl
divert(AC_DIVERSION_CURRENT)dnl
-])dnl
-dnl
+])
+
dnl Change the diversion stream to its previous value, unstacking it.
dnl AC_DIVERT_POP()
define(AC_DIVERT_POP,
[popdef([AC_DIVERSION_CURRENT])dnl
divert(AC_DIVERSION_CURRENT)dnl
-])dnl
-dnl
+])
+
dnl Initialize the diversion setup.
-define(AC_DIVERSION_CURRENT, AC_DIVERSION_NORMAL)dnl
-AC_DIVERT_PUSH(AC_DIVERSION_NOTICE)dnl will be later POPed by AC_INIT
-dnl
+define([AC_DIVERSION_CURRENT], AC_DIVERSION_NORMAL)
+dnl This will be popped by AC_REQUIRE in AC_INIT.
+pushdef([AC_DIVERSION_CURRENT], AC_DIVERSION_NOTICE)
+
dnl The prologue for Autoconf macros.
dnl AC_PRO(MACRO-NAME)
define(AC_PRO,
ifelse(AC_DIVERSION_CURRENT, AC_DIVERSION_NORMAL,
[AC_DIVERT_PUSH(builtin(eval, AC_DIVERSION_CURRENT - 1))],
[pushdef([AC_DIVERSION_CURRENT], AC_DIVERSION_CURRENT)])dnl
-])dnl
-dnl
+])
+
dnl The Epilogue for Autoconf macros.
dnl AC_EPI()
define(AC_EPI,
undivert(AC_DIVERSION_NORMAL_2)dnl
undivert(AC_DIVERSION_NORMAL_1)dnl
])dnl
-])dnl
-dnl
+])
+
dnl Define a macro which automatically provides itself. Add machinery
dnl so the macro automatically switches expansion to the diversion
dnl stack if it is not already using it. In this case, once finished,
dnl macros.
dnl AC_DEFUN(NAME, EXPANSION)
define([AC_DEFUN],
-[define($1, [AC_PRO([$1])$2[]AC_EPI()])])dnl
-dnl
+[define($1, [AC_PRO([$1])$2[]AC_EPI()])])
+
dnl AC_INIT_NOTICE()
AC_DEFUN(AC_INIT_NOTICE,
[# Guess values for system-dependent variables and create Makefiles.
# along with this program; if not, write to the Free Software
# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-ac_help=])dnl
-dnl
+ac_help=])
+
dnl AC_INIT_PARSE_ARGS()
AC_DEFUN(AC_INIT_PARSE_ARGS,
[# Save the original args to write them into config.status later.
if test -n "$ac_prev"; then
AC_MSG_ERROR(missing argument to --`echo $ac_prev | sed 's/_/-/g'`)
fi
-])dnl
-dnl
+])
+
dnl Try to have only one #! line, so the script doesn't look funny
dnl for users of AC_REVISION.
dnl AC_INIT_BINSH()
AC_DEFUN(AC_INIT_BINSH,
[#!/bin/sh
-])dnl
-dnl
+])
+
dnl AC_INIT(UNIQUE-FILE-IN-SOURCE-DIR)
AC_DEFUN(AC_INIT,
[sinclude(acsite.m4)dnl
sinclude(./aclocal.m4)dnl
AC_REQUIRE([AC_INIT_BINSH])dnl
AC_INIT_NOTICE
-AC_DIVERT_POP()dnl to NORMAL
+AC_DIVERT_POP()dnl to NORMAL
AC_DIVERT_PUSH(AC_DIVERSION_INIT)dnl
AC_INIT_PARSE_ARGS
AC_INIT_PREPARE($1)dnl
-AC_DIVERT_POP()dnl to NORMAL
-])dnl
-dnl
+AC_DIVERT_POP()dnl to NORMAL
+])
+
dnl AC_INIT_PREPARE(UNIQUE-FILE-IN-SOURCE-DIR)
AC_DEFUN(AC_INIT_PREPARE,
[trap 'rm -fr conftest* confdefs* core $ac_clean_files; exit 1' 1 2 15
AC_SUBST(CXXFLAGS)dnl
AC_SUBST(CPPFLAGS)dnl
AC_SUBST(LDFLAGS)dnl
-])dnl
-dnl
+])
+
dnl AC_ARG_ENABLE(FEATURE, HELP-STRING, ACTION-IF-TRUE [, ACTION-IF-FALSE])
AC_DEFUN(AC_ARG_ENABLE,
[AC_DIVERT_PUSH(AC_DIVERSION_NOTICE)dnl
$4
])dnl
fi
-])dnl
-dnl
+])
+
AC_DEFUN(AC_ENABLE,
[AC_OBSOLETE([$0], [; instead use AC_ARG_ENABLE])dnl
AC_ARG_ENABLE([$1], [ --enable-$1], [$2], [$3])dnl
-])dnl
-dnl
+])
+
dnl AC_ARG_WITH(PACKAGE, HELP-STRING, ACTION-IF-TRUE [, ACTION-IF-FALSE])
AC_DEFUN(AC_ARG_WITH,
[AC_DIVERT_PUSH(AC_DIVERSION_NOTICE)dnl
$4
])dnl
fi
-])dnl
-dnl
+])
+
AC_DEFUN(AC_WITH,
[AC_OBSOLETE([$0], [; instead use AC_ARG_WITH])dnl
AC_ARG_WITH([$1], [ --with-$1], [$2], [$3])dnl
-])dnl
-dnl
+])
+
dnl AC_CONFIG_HEADER(HEADER-TO-CREATE ...)
AC_DEFUN(AC_CONFIG_HEADER,
-[define(AC_LIST_HEADER, $1)])dnl
-dnl
+[define(AC_LIST_HEADER, $1)])
+
dnl AC_REVISION(REVISION-INFO)
AC_DEFUN(AC_REVISION,
[AC_REQUIRE([AC_INIT_BINSH])dnl
-[# From configure.in] translit([$1], $")])dnl
-dnl
+[# From configure.in] translit([$1], $")])
+
dnl Subroutines of AC_PREREQ.
-dnl
+
dnl Change the dots in NUMBER into commas.
dnl AC_PREREQ_SPLIT(NUMBER)
AC_DEFUN(AC_PREREQ_SPLIT,
-[translit($1, ., [, ])])dnl
-dnl
+[translit($1, ., [, ])])
+
dnl Default the ternary version number to 0 (e.g., 1, 7 -> 1, 7, 0).
dnl AC_PREREQ_CANON(MAJOR, MINOR [,TERNARY])
AC_DEFUN(AC_PREREQ_CANON,
-[$1, $2, ifelse([$3], , 0, [$3])])dnl
-dnl
+[$1, $2, ifelse([$3], , 0, [$3])])
+
dnl Complain and exit if version number 1 is less than version number 2.
dnl PRINTABLE2 is the printable version of version number 2.
dnl AC_PREREQ_COMPARE(MAJOR1, MINOR1, TERNARY1, MAJOR2, MINOR2, TERNARY2,
[ifelse(builtin([eval],
[$3 + $2 * 100 + $1 * 10000 < $6 + $5 * 100 + $4 * 10000]), 1,
[errprint(Autoconf version $7 or higher is required for this script
-)m4exit(3)])])dnl
-dnl
+)m4exit(3)])])
+
dnl Complain and exit if the Autoconf version is less than VERSION.
dnl AC_PREREQ(VERSION)
AC_DEFUN(AC_PREREQ,
[AC_PREREQ_COMPARE(AC_PREREQ_CANON(AC_PREREQ_SPLIT(AC_ACVERSION)),
-AC_PREREQ_CANON(AC_PREREQ_SPLIT([$1])), [$1])])dnl
-dnl
+AC_PREREQ_CANON(AC_PREREQ_SPLIT([$1])), [$1])])
+
dnl Run configure in subdirectories DIR...
dnl Not actually done until AC_OUTPUT_SUBDIRS.
dnl AC_CONFIG_SUBDIRS(DIR ...)
define([AC_LIST_SUBDIRS], [$1])dnl
subdirs="AC_LIST_SUBDIRS"
AC_SUBST(subdirs)dnl
-])dnl
-dnl
+])
+
dnl Guess the value for the `prefix' variable by looking for
dnl the argument program along PATH and taking its parent.
dnl Example: if the argument is `gcc' and we find /usr/local/gnu/bin/gcc,
fi
fi
undefine([AC_VAR_NAME])dnl
-])dnl
-dnl
-dnl
+])
+
+
dnl ### Canonicalizing the system type
-dnl
-dnl
+
+
dnl Find install.sh, config.sub, config.guess, and Cygnus configure
dnl in directory DIR. These are auxiliary files used in configuration.
dnl DIR can be either absolute or relative to ${srcdir}.
dnl AC_CONFIG_AUX_DIR(DIR)
AC_DEFUN(AC_CONFIG_AUX_DIR,
-[AC_CONFIG_AUX_DIRS($1 ${srcdir}/$1)])dnl
-dnl
+[AC_CONFIG_AUX_DIRS($1 ${srcdir}/$1)])
+
dnl The default is `${srcdir}' or `${srcdir}/..' or `${srcdir}/../..'.
dnl There's no need to call this macro explicitly; just AC_REQUIRE it.
AC_DEFUN(AC_CONFIG_AUX_DIR_DEFAULT,
-[AC_CONFIG_AUX_DIRS(${srcdir} ${srcdir}/.. ${srcdir}/../..)])dnl
-dnl
+[AC_CONFIG_AUX_DIRS(${srcdir} ${srcdir}/.. ${srcdir}/../..)])
+
dnl Internal subroutine.
dnl Search for the configuration auxiliary files in directory list $1.
dnl We look only for install.sh, so users of AC_PROG_INSTALL
ac_configure=${ac_aux_dir}/configure # This should be Cygnus configure.
ac_install_sh="${ac_aux_dir}/install.sh -c"
AC_PROVIDE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
-])dnl
-dnl
+])
+
dnl Canonicalize the host, target, and build system types.
AC_DEFUN(AC_CANONICAL_SYSTEM,
[AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
AC_CANONICAL_HOST
AC_CANONICAL_TARGET
AC_CANONICAL_BUILD
-])dnl
-dnl
+])
+
dnl Subroutines of AC_CANONICAL_SYSTEM.
-dnl
+
AC_DEFUN(AC_CANONICAL_HOST,
[AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
AC_MSG_CHECKING(host system type)
AC_SUBST(host_cpu)dnl
AC_SUBST(host_vendor)dnl
AC_SUBST(host_os)dnl
-])dnl
-dnl
+])
+
dnl Internal use only.
AC_DEFUN(AC_CANONICAL_TARGET,
[AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
AC_SUBST(target_cpu)dnl
AC_SUBST(target_vendor)dnl
AC_SUBST(target_os)dnl
-])dnl
-dnl
+])
+
dnl Internal use only.
AC_DEFUN(AC_CANONICAL_BUILD,
[AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
AC_SUBST(build_cpu)dnl
AC_SUBST(build_vendor)dnl
AC_SUBST(build_os)dnl
-])dnl
-dnl
+])
+
dnl Link each of the existing files FILE... to the corresponding
dnl link name in LINK...
dnl Not actually done until AC_OUTPUT_LINKS.
dnl AC_LINK_FILES(LINK ..., FILE ...)
AC_DEFUN(AC_LINK_FILES,
-[define([AC_LIST_LINKS], [$1])define([AC_LIST_FILES], [$2])])dnl
-dnl
-dnl
+[define([AC_LIST_LINKS], [$1])define([AC_LIST_FILES], [$2])])
+
+
dnl ### Caching test results
-dnl
-dnl
+
+
dnl Look for site or system specific initialization scripts.
dnl AC_SITE_LOAD()
AC_DEFUN(AC_SITE_LOAD,
. "$ac_site_file"
fi
done
-])dnl
-dnl
+])
+
dnl AC_CACHE_LOAD()
AC_DEFUN(AC_CACHE_LOAD,
[if test -r "$cache_file"; then
echo "creating cache $cache_file"
> $cache_file
fi
-])dnl
-dnl
+])
+
dnl AC_CACHE_SAVE()
AC_DEFUN(AC_CACHE_SAVE,
[if test -w $cache_file; then
else
echo "not updating unwritable cache $cache_file"
fi
-])dnl
-dnl
+])
+
dnl The name of shell var CACHE-ID must contain `_cv_' in order to get saved.
dnl AC_CACHE_VAL(CACHE-ID, COMMANDS-TO-SET-IT)
AC_DEFUN(AC_CACHE_VAL,
else
$2
fi
-])dnl
-dnl
-dnl
+])
+
+
dnl ### Setting variables
-dnl
-dnl
+
+
dnl Set VARIABLE to VALUE, verbatim, or 1.
dnl AC_DEFINE(VARIABLE [, VALUE])
AC_DEFUN(AC_DEFINE,
[cat >> confdefs.h <<\EOF
[#define] $1 ifelse($#, 2, [$2], 1)
EOF
-])dnl
-dnl
+])
+
dnl Similar, but perform shell substitutions $ ` \ once on VALUE.
AC_DEFUN(AC_DEFINE_UNQUOTED,
[cat >> confdefs.h <<EOF
[#define] $1 ifelse($#, 2, [$2], 1)
EOF
-])dnl
-dnl
+])
+
dnl This macro protects VARIABLE from being diverted twice
dnl if this macro is called twice for it.
dnl AC_SUBST(VARIABLE)
AC_DIVERT_PUSH(AC_DIVERSION_SED)dnl
s%@$1@%[$]$1%g
AC_DIVERT_POP()dnl
-])])dnl
-dnl
+])])
+
dnl AC_SUBST_FILE(VARIABLE)
AC_DEFUN(AC_SUBST_FILE,
[ifdef([AC_SUBST_$1], ,
/@$1@/r [$]$1
s%@$1@%%g
AC_DIVERT_POP()dnl
-])])dnl
-dnl
-dnl
+])])
+
+
dnl ### Printing messages
-dnl
-dnl
+
+
dnl AC_MSG_CHECKING(FEATURE-DESCRIPTION)
AC_DEFUN(AC_MSG_CHECKING,
[AC_REQUIRE([AC_PROG_ECHO_N])dnl
-echo $ac_n "checking $1""... $ac_c" 1>&AC_FD_MSG])dnl
-dnl
+echo $ac_n "checking $1""... $ac_c" 1>&AC_FD_MSG])
+
dnl AC_CHECKING(FEATURE-DESCRIPTION)
AC_DEFUN(AC_CHECKING,
-[echo "checking $1" 1>&AC_FD_MSG])dnl
-dnl
+[echo "checking $1" 1>&AC_FD_MSG])
+
dnl AC_MSG_RESULT(RESULT-DESCRIPTION)
AC_DEFUN(AC_MSG_RESULT,
[AC_REQUIRE([AC_PROG_ECHO_N])dnl
-echo "$ac_t""$1" 1>&AC_FD_MSG])dnl
-dnl
+echo "$ac_t""$1" 1>&AC_FD_MSG])
+
dnl AC_VERBOSE(RESULT-DESCRIPTION)
AC_DEFUN(AC_VERBOSE,
[AC_OBSOLETE([$0], [; instead use AC_MSG_RESULT])dnl
-echo " $1" 1>&AC_FD_MSG])dnl
-dnl
+echo " $1" 1>&AC_FD_MSG])
+
dnl AC_MSG_WARN(PROBLEM-DESCRIPTION)
AC_DEFUN(AC_MSG_WARN,
-[echo "configure: warning: $1" 1>&2])dnl
-dnl
+[echo "configure: warning: $1" 1>&2])
+
dnl AC_MSG_ERROR(ERROR-DESCRIPTION)
AC_DEFUN(AC_MSG_ERROR,
-[{ echo "configure: $1" 1>&2; exit 1; }])dnl
-dnl
-dnl
+[{ echo "configure: $1" 1>&2; exit 1; }])
+
+
dnl ### Selecting which language to use for testing
-dnl
-dnl
+
+
dnl AC_LANG_C()
AC_DEFUN(AC_LANG_C,
[define([AC_LANG], [C])dnl
# CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
ac_cpp='${CPP} $CPPFLAGS'
ac_compile='${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS conftest.${ac_ext} -o conftest $LIBS 1>&AC_FD_CC 2>&AC_FD_CC'
-])dnl
-dnl
+])
+
dnl AC_LANG_CPLUSPLUS()
AC_DEFUN(AC_LANG_CPLUSPLUS,
[define([AC_LANG], [CPLUSPLUS])dnl
# CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
ac_cpp='${CXXCPP} $CPPFLAGS'
ac_compile='${CXX-gcc} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.${ac_ext} -o conftest $LIBS 1>&AC_FD_CC 2>&AC_FD_CC'
-])dnl
-dnl
+])
+
dnl Push the current language on a stack.
-dnl
+
dnl AC_LANG_SAVE()
AC_DEFUN(AC_LANG_SAVE,
-[pushdef([AC_LANG_STACK], AC_LANG)])dnl
-dnl
+[pushdef([AC_LANG_STACK], AC_LANG)])
+
dnl Restore the current language from the stack.
dnl AC_LANG_RESTORE()
AC_DEFUN(AC_LANG_RESTORE,
-[ifelse(AC_LANG_STACK, C, [ifelse(AC_LANG, C, , [AC_LANG_C])], [ifelse(AC_LANG, CPLUSPLUS, , [AC_LANG_CPLUSPLUS])])[]popdef([AC_LANG_STACK])])dnl
-dnl
-dnl
+[ifelse(AC_LANG_STACK, C, [ifelse(AC_LANG, C, , [AC_LANG_C])], [ifelse(AC_LANG, CPLUSPLUS, , [AC_LANG_CPLUSPLUS])])[]popdef([AC_LANG_STACK])])
+
+
dnl ### Enforcing ordering constraints
-dnl
-dnl
+
+
dnl AC_BEFORE(THIS-MACRO-NAME, CALLED-MACRO-NAME)
-AC_DEFUN(AC_BEFORE,
+define(AC_BEFORE,
[ifdef([AC_PROVIDE_$2], [errprint(__file__:__line__: [$2 was called before $1
-])])])dnl
-dnl
+])])])
+
dnl AC_REQUIRE(MACRO-NAME)
-AC_DEFUN(AC_REQUIRE,
+define(AC_REQUIRE,
[ifdef([AC_PROVIDE_$1], ,
[AC_DIVERT_PUSH(builtin(eval, AC_DIVERSION_CURRENT - 1))dnl
indir([$1])
AC_DIVERT_POP()dnl
-])])dnl
-dnl
+])])
+
dnl AC_PROVIDE(MACRO-NAME)
define(AC_PROVIDE,
-[define([AC_PROVIDE_$1], )])dnl
-dnl
+[define([AC_PROVIDE_$1], )])
+
dnl AC_OBSOLETE(THIS-MACRO-NAME [, SUGGESTION])
-AC_DEFUN(AC_OBSOLETE,
+define(AC_OBSOLETE,
[errprint(__file__:__line__: warning: [$1] is obsolete[$2]
-)])dnl
-dnl
-dnl
+)])
+
+
dnl ### Checking for files (caching)
-dnl
-dnl
+
+
dnl AC_CHECK_PROG(VARIABLE, PROG-TO-CHECK-FOR, VALUE-IF-FOUND
dnl [, VALUE-IF-NOT-FOUND])
AC_DEFUN(AC_CHECK_PROG,
AC_MSG_RESULT(no)
fi
AC_SUBST($1)dnl
-])dnl
-dnl
+])
+
dnl AC_PATH_PROG(VARIABLE, PROG-TO-CHECK-FOR [, VALUE-IF-NOT-FOUND])
AC_DEFUN(AC_PATH_PROG,
[# Extract the first word of "$2", so it can be a program name with args.
AC_MSG_RESULT(no)
fi
AC_SUBST($1)dnl
-])dnl
-dnl
+])
+
dnl AC_CHECK_PROGS(VARIABLE, PROGS-TO-CHECK-FOR [, VALUE-IF-NOT-FOUND])
AC_DEFUN(AC_CHECK_PROGS,
[for ac_prog in $2
test -n "[$]$1" && break
done
ifelse([$3], , , [test -n "[$]$1" || $1="$3"
-])])dnl
-dnl
+])])
+
dnl AC_PATH_PROGS(VARIABLE, PROGS-TO-CHECK-FOR [, VALUE-IF-NOT-FOUND])
AC_DEFUN(AC_PATH_PROGS,
[for ac_prog in $2
test -n "[$]$1" && break
done
ifelse([$3], , , [test -n "[$]$1" || $1="$3"
-])])dnl
-dnl
+])])
+
dnl AC_CHECK_LIB(LIBRARY, FUNCTION, [, ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND
dnl [, OTHER-LIBRARIES]]])
AC_DEFUN(AC_CHECK_LIB,
ifelse([$4], , , [$4
])dnl
fi
-])dnl
-dnl
+])
+
dnl AC_HAVE_LIBRARY(LIBRARY, [, ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND
dnl [, OTHER-LIBRARIES]]])
AC_DEFUN(AC_HAVE_LIBRARY,
fi
undefine([AC_LIB_NAME])dnl
undefine([AC_CV_NAME])dnl
-])dnl
-dnl
-dnl
-dnl ### Checking for C features - primitive (no caching)
-dnl
-dnl
+])
+
+
+dnl ### Checking C system output (no caching)
+
+
dnl AC_EGREP_HEADER(PATTERN, HEADER-FILE, ACTION-IF-FOUND [,
dnl ACTION-IF-NOT-FOUND])
AC_DEFUN(AC_EGREP_HEADER,
-[AC_EGREP_CPP([$1], [#include <$2>], [$3], [$4])])dnl
-dnl
+[AC_EGREP_CPP([$1], [#include <$2>], [$3], [$4])])
+
dnl Because this macro is used by AC_PROG_GCC_TRADITIONAL, which must
dnl come early, it is not included in AC_BEFORE checks.
dnl AC_EGREP_CPP(PATTERN, PROGRAM, ACTION-IF-FOUND [,
#include "confdefs.h"
[$2]
EOF
-if eval "$ac_cpp conftest.${ac_ext}" 2>&AC_FD_CC |
+dnl eval is necessary to expand ac_cpp.
+dnl Ultrix and Pyramid sh refuse to redirect output of eval, so use subshell.
+if (eval "$ac_cpp conftest.${ac_ext}") 2>&AC_FD_CC |
egrep "$1" >/dev/null 2>&1; then
ifelse([$3], , :, [rm -rf conftest*
$3])
])dnl
fi
rm -f conftest*
-])dnl
-dnl
+])
+
dnl AC_COMPILE_CHECK(ECHO-TEXT, INCLUDES, FUNCTION-BODY,
dnl ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND])
AC_DEFUN(AC_COMPILE_CHECK,
ifelse([$1], , , [AC_CHECKING([for $1])
])dnl
AC_TRY_LINK([$2], [$3], [$4], [$5])dnl
-])dnl
-dnl
+])
+
dnl AC_TRY_LINK(INCLUDES, FUNCTION-BODY,
dnl ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND])
AC_DEFUN(AC_TRY_LINK,
])dnl
fi
rm -f conftest*]
-)dnl
-dnl
+)
+
dnl AC_TRY_RUN(PROGRAM, ACTION-IF-TRUE [, ACTION-IF-FALSE
dnl [, ACTION-IF-CROSS-COMPILING]])
AC_DEFUN(AC_TRY_RUN,
[AC_REQUIRE([AC_C_CROSS])dnl
if test "$cross_compiling" = yes; then
- ifelse([$4], , AC_MSG_ERROR(can not run test program while cross compiling),
- [AC_MSG_WARN(using default for cross-compiling)
-$4
-])
+ ifelse([$4], ,
+ [ifdef([AC_PROVIDE_AC_CANONICAL_SYSTEM],
+ [errprint(__file__:__line__: warning: test program without default prevents cross compiling
+)])dnl
+ AC_MSG_ERROR(can not run test program while cross compiling)],
+ [$4])
else
cat > conftest.${ac_ext} <<EOF
[#]line __oline__ "configure"
])dnl
fi
fi
-rm -fr conftest*])dnl
-dnl
+rm -fr conftest*])
+
dnl AC_TRY_CPP(INCLUDES, ACTION-IF-TRUE [, ACTION-IF-FALSE])
AC_DEFUN(AC_TRY_CPP,
[AC_REQUIRE_CPP()dnl
[$1]
EOF
dnl Capture the stderr of cpp.
-dnl Coherent sh does redirections in the wrong order, so separate them
-dnl with quotes.
-ac_err=`eval "$ac_cpp conftest.${ac_ext} >/dev/null" 2>&1`
+dnl eval is necessary to expand ac_cpp.
+dnl Ultrix and Pyramid sh refuse to redirect output of eval, so use subshell.
+dnl Coherent sh does redirections in the wrong order, so separate them.
+# Note: sh -x echos commands on subshell stderr, making this test fail.
+ac_err=`(eval "$ac_cpp conftest.${ac_ext} >/dev/null") 2>&1`
if test -z "$ac_err"; then
ifelse([$2], , :, [rm -rf conftest*
$2])
$3
])dnl
fi
-rm -f conftest*])dnl
-dnl
-dnl
-dnl ### Checking for C features - derived (caching)
-dnl
-dnl
+rm -f conftest*])
+
+
+dnl ### Checking for C features (caching)
+
+
dnl AC_CHECK_HEADER(HEADER-FILE, ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND])
AC_DEFUN(AC_CHECK_HEADER,
[dnl Do the transliteration at runtime so arg 1 can be a shell variable.
ifelse([$3], , , [$3
])dnl
fi
-])dnl
-dnl
+])
+
dnl AC_CHECK_FUNC(FUNCTION, ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND])
AC_DEFUN(AC_CHECK_FUNC,
[AC_MSG_CHECKING([for $1])
ifelse([$3], , , [$3
])dnl
fi
-])dnl
-dnl
+])
+
dnl AC_CHECK_FUNCS(FUNCTION... [, ACTION])
AC_DEFUN(AC_CHECK_FUNCS,
[for ac_func in $1
changequote([, ])dnl
AC_DEFINE_UNQUOTED(${ac_tr_func}) $2])dnl
done
-])dnl
-dnl
+])
+
dnl AC_CHECK_HEADERS(HEADER-FILE... [, ACTION])
AC_DEFUN(AC_CHECK_HEADERS,
[AC_REQUIRE_CPP()dnl Make sure the cpp check happens outside the loop.
changequote([, ])dnl
AC_DEFINE_UNQUOTED(${ac_tr_hdr}) $2])dnl
done
-])dnl
-dnl
+])
+
dnl AC_REPLACE_FUNCS(FUNCTION-NAME...)
AC_DEFUN(AC_REPLACE_FUNCS,
[for ac_func in $1
AC_CHECK_FUNC(${ac_func}, , [LIBOBJS="$LIBOBJS ${ac_func}.o"])
done
AC_SUBST(LIBOBJS)dnl
-])dnl
-dnl
+])
+
dnl AC_CHECK_SIZEOF(TYPE)
AC_DEFUN(AC_CHECK_SIZEOF,
[changequote(<<, >>)dnl
AC_DEFINE_UNQUOTED(AC_TYPE_NAME, $AC_CV_NAME)
undefine([AC_TYPE_NAME])dnl
undefine([AC_CV_NAME])dnl
-])dnl
-dnl
+])
+
dnl AC_CHECK_TYPE(TYPE, DEFAULT)
AC_DEFUN(AC_CHECK_TYPE,
[AC_MSG_CHECKING(for $1 in sys/types.h)
if test $ac_cv_type_$1 = no; then
AC_DEFINE($1, $2)
fi
-])dnl
-dnl
-dnl
+])
+
+
dnl ### The big finish
-dnl
-dnl
+
+
dnl Produce config.status, config.h, and links, and configure subdirs.
-dnl AC_OUTPUT([FILE...] [, EXTRA-CMDS])
+dnl AC_OUTPUT([FILE...] [, EXTRA-CMDS] [, INIT-CMDS])
AC_DEFUN(AC_OUTPUT,
[AC_CACHE_SAVE
AC_OUTPUT_FILES($1)
ifdef([AC_LIST_HEADER], [AC_OUTPUT_HEADER(AC_LIST_HEADER)])dnl
ifdef([AC_LIST_LINKS], [AC_OUTPUT_LINKS(AC_LIST_LINKS, AC_LIST_FILES)])dnl
+ifelse([$3], , ,
+[EOF
+cat >> ${CONFIG_STATUS} <<EOF
+$3
+EOF
+cat >> ${CONFIG_STATUS} <<\EOF])
$2
+exit 0
EOF
chmod +x ${CONFIG_STATUS}
test "$no_create" = yes || ${CONFIG_SHELL-/bin/sh} ${CONFIG_STATUS}
cd ${ac_popdir}
done
fi
-])dnl
-dnl
+])
dnl Written by David MacKenzie, with help from
dnl Franc,ois Pinard, Karl Berry, Richard Pixley, Ian Lance Taylor,
dnl Roland McGrath, and Noah Friedman.
-dnl
-dnl
+
+
dnl ### Checks for programs
-dnl
-dnl
+
+
dnl Check whether to use -n, \c, or newline-tab to separate
dnl checking messages from result messages.
dnl Idea borrowed from dist 3.0.
else
ac_n= ac_c='\c' ac_t=
fi
-])dnl
-dnl
+])
+
AC_DEFUN(AC_PROG_CC,
[AC_BEFORE([$0], [AC_PROG_CPP])dnl
AC_CHECK_PROG(CC, gcc, gcc, cc)
GCC=
test "${CFLAGS+set}" = set || CFLAGS='-g'
fi
-])dnl
-dnl
+])
+
AC_DEFUN(AC_PROG_CXX,
[AC_BEFORE([$0], [AC_PROG_CXXCPP])dnl
AC_CHECK_PROGS(CXX, $CCC c++ g++ gcc CC cxx, gcc)
GXX=
test "${CXXFLAGS+set}" = set || CXXFLAGS='-g'
fi
-])dnl
-dnl
+])
+
AC_DEFUN(AC_PROG_GCC_TRADITIONAL,
[AC_REQUIRE([AC_PROG_CC])dnl
AC_REQUIRE([AC_PROG_CPP])dnl
CC="$CC -traditional"
fi
fi
-])dnl
-dnl
+])
+
AC_DEFUN(AC_PROG_CC_C_O,
[if test "x$CC" != xcc; then
AC_MSG_CHECKING(whether $CC and cc understand -c and -o together)
AC_MSG_RESULT(no)
AC_DEFINE(NO_MINUS_C_MINUS_O)
fi
-])dnl
-dnl
+])
+
dnl Define SET_MAKE to set ${MAKE} if make doesn't.
AC_DEFUN(AC_PROG_MAKE_SET,
[AC_MSG_CHECKING(whether ${MAKE-make} sets \$MAKE)
SET_MAKE="MAKE=${MAKE-make}"
fi
AC_SUBST([SET_MAKE])dnl
-])dnl
-dnl
+])
+
AC_DEFUN(AC_PROG_RANLIB,
-[AC_CHECK_PROG(RANLIB, ranlib, ranlib, :)])dnl
-dnl
+[AC_CHECK_PROG(RANLIB, ranlib, ranlib, :)])
+
AC_DEFUN(AC_PROG_AWK,
-[AC_CHECK_PROGS(AWK, mawk gawk nawk awk, )])dnl
-dnl
+[AC_CHECK_PROGS(AWK, mawk gawk nawk awk, )])
+
AC_DEFUN(AC_PROG_YACC,
-[AC_CHECK_PROGS(YACC, 'bison -y' byacc, yacc)])dnl
-dnl
+[AC_CHECK_PROGS(YACC, 'bison -y' byacc, yacc)])
+
AC_DEFUN(AC_PROG_CPP,
[AC_MSG_CHECKING(how to run the C preprocessor)
# On Suns, sometimes $CPP names a directory.
CPP="$ac_cv_prog_CPP"
AC_MSG_RESULT($CPP)
AC_SUBST(CPP)dnl
-])dnl
-dnl
+])
+
AC_DEFUN(AC_PROG_CXXCPP,
[AC_MSG_CHECKING(how to run the C++ preprocessor)
if test -z "$CXXCPP"; then
CXXCPP="$ac_cv_prog_CXXCPP"
AC_MSG_RESULT($CXXCPP)
AC_SUBST(CXXCPP)dnl
-])dnl
-dnl
+])
+
dnl Require finding the C or C++ preprocessor, whichever is the
dnl current language.
AC_DEFUN(AC_REQUIRE_CPP,
-[ifelse(AC_LANG, C, [AC_REQUIRE([AC_PROG_CPP])], [AC_REQUIRE([AC_PROG_CXXCPP])])])dnl
-dnl
+[ifelse(AC_LANG, C, [AC_REQUIRE([AC_PROG_CPP])], [AC_REQUIRE([AC_PROG_CXXCPP])])])
+
AC_DEFUN(AC_PROG_LEX,
[AC_CHECK_PROG(LEX, flex, flex, lex)
AC_MSG_CHECKING(for $LEX library)
esac
fi
AC_MSG_RESULT($LEXLIB)
-AC_SUBST(LEXLIB)])dnl
-dnl
+AC_SUBST(LEXLIB)])
+
AC_DEFUN(AC_DECL_YYTEXT,
[AC_REQUIRE_CPP()dnl
AC_REQUIRE([AC_PROG_LEX])dnl
AC_DEFINE(YYTEXT_POINTER)
fi
AC_SUBST(LEX_OUTPUT_ROOT)dnl
-])dnl
-dnl
+])
+
AC_DEFUN(AC_PROG_INSTALL,
[AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
# Make sure to not get an incompatible install:
test -z "$INSTALL_DATA" && INSTALL_DATA='${INSTALL} -m 644'
AC_SUBST(INSTALL_DATA)dnl
-])dnl
-dnl
+])
+
AC_DEFUN(AC_PROG_LN_S,
[AC_MSG_CHECKING(whether ln -s works)
AC_CACHE_VAL(ac_cv_prog_LN_S,
AC_MSG_RESULT(no)
fi
AC_SUBST(LN_S)dnl
-])dnl
-dnl
+])
+
AC_DEFUN(AC_RSH,
[errprint(__file__:__line__: [$0] has been removed; replace it with equivalent code
-)m4exit(4)])dnl
-dnl
-dnl
+)m4exit(4)])
+
+
dnl ### Checks for header files
-dnl
-dnl
+
+
AC_DEFUN(AC_HEADER_STDC,
[AC_REQUIRE_CPP()dnl
AC_MSG_CHECKING(for ANSI C header files)
int main () { int i; for (i = 0; i < 256; i++)
if (XOR (islower (i), ISLOWER (i)) || toupper (i) != TOUPPER (i)) exit(2);
exit (0); }
-], , ac_stdc_headers=no)
+], , ac_cv_header_stdc=no, ac_cv_header_stdc=no)
fi])dnl
AC_MSG_RESULT($ac_cv_header_stdc)
if test $ac_cv_header_stdc = yes; then
AC_DEFINE(STDC_HEADERS)
fi
-])dnl
-dnl
+])
+
AC_DEFUN(AC_UNISTD_H,
[AC_OBSOLETE([$0], [; instead use AC_CHECK_HEADERS(unistd.h)])dnl
-AC_CHECK_HEADER(unistd.h, AC_DEFINE(HAVE_UNISTD_H))])dnl
-dnl
+AC_CHECK_HEADER(unistd.h, AC_DEFINE(HAVE_UNISTD_H))])
+
AC_DEFUN(AC_USG,
[AC_OBSOLETE([$0],
[; instead use AC_CHECK_HEADERS(string.h) and HAVE_STRING_H])dnl
AC_MSG_CHECKING([for BSD string and memory functions])
AC_TRY_LINK([#include <strings.h>], [rindex(0, 0); bzero(0, 0);], ,
- [AC_MSG_RESULT(yes); AC_DEFINE(USG)], [AC_MSG_RESULT(no)])])dnl
-dnl
-dnl
+ [AC_MSG_RESULT(yes); AC_DEFINE(USG)], [AC_MSG_RESULT(no)])])
+
+
dnl If memchr and the like aren't declared in <string.h>, include <memory.h>.
dnl To avoid problems, don't check for gcc2 built-ins.
AC_DEFUN(AC_MEMORY_H,
if test $ac_found = no; then
AC_CHECK_HEADER(memory.h, [AC_DEFINE(NEED_MEMORY_H)])
fi
-])dnl
-dnl
+])
+
AC_DEFUN(AC_HEADER_MAJOR,
[AC_MSG_CHECKING(whether sys/types.h defines makedev)
AC_CACHE_VAL(ac_cv_header_sys_types_h_makedev,
AC_CHECK_HEADER(sys/sysmacros.h, [AC_DEFINE(MAJOR_IN_SYSMACROS)])
fi
fi
-])dnl
-dnl
+])
+
AC_DEFUN(AC_HEADER_DIRENT,
[ac_header_dir=no
AC_CHECK_HEADERS(dirent.h sys/ndir.h sys/dir.h ndir.h,
if test $ac_cv_func_closedir_void = yes; then
AC_DEFINE(CLOSEDIR_VOID)
fi
-])dnl
-dnl
+])
+
dnl Obsolete.
AC_DEFUN(AC_DIR_HEADER,
[ac_header_dir=no
if test $ac_cv_func_closedir_void = yes; then
AC_DEFINE(VOID_CLOSEDIR)
fi
-])dnl
-dnl
+])
+
AC_DEFUN(AC_HEADER_STAT,
[AC_MSG_CHECKING(whether stat file-mode macros are broken)
AC_CACHE_VAL(ac_cv_header_stat_broken,
if test $ac_cv_header_stat_broken = yes; then
AC_DEFINE(STAT_MACROS_BROKEN)
fi
-])dnl
-dnl
+])
+
AC_DEFUN(AC_DECL_SYS_SIGLIST,
[AC_MSG_CHECKING([for sys_siglist declaration in signal.h or unistd.h])
AC_CACHE_VAL(ac_cv_decl_sys_siglist,
if test $ac_cv_decl_sys_siglist = yes; then
AC_DEFINE(SYS_SIGLIST_DECLARED)
fi
-])dnl
-dnl
-dnl
+])
+
+
dnl ### Checks for typedefs
-dnl
-dnl
+
+
AC_DEFUN(AC_TYPE_GETGROUPS,
[AC_REQUIRE([AC_TYPE_UID_T])dnl
AC_MSG_CHECKING(type of array argument to getgroups)
ac_cv_type_getgroups=gid_t, ac_cv_type_getgroups=int)])dnl
AC_MSG_RESULT($ac_cv_type_getgroups)
AC_DEFINE_UNQUOTED(GETGROUPS_T, $ac_cv_type_getgroups)
-])dnl
-dnl
+])
+
AC_DEFUN(AC_TYPE_UID_T,
[AC_MSG_CHECKING(for uid_t in sys/types.h)
AC_CACHE_VAL(ac_cv_type_uid_t,
AC_DEFINE(uid_t, int)
AC_DEFINE(gid_t, int)
fi
-])dnl
-dnl
+])
+
AC_DEFUN(AC_TYPE_SIZE_T,
-[AC_CHECK_TYPE(size_t, unsigned)])dnl
-dnl
+[AC_CHECK_TYPE(size_t, unsigned)])
+
AC_DEFUN(AC_TYPE_PID_T,
-[AC_CHECK_TYPE(pid_t, int)])dnl
-dnl
+[AC_CHECK_TYPE(pid_t, int)])
+
AC_DEFUN(AC_TYPE_OFF_T,
-[AC_CHECK_TYPE(off_t, long)])dnl
-dnl
+[AC_CHECK_TYPE(off_t, long)])
+
AC_DEFUN(AC_TYPE_MODE_T,
-[AC_CHECK_TYPE(mode_t, int)])dnl
-dnl
+[AC_CHECK_TYPE(mode_t, int)])
+
dnl Note that identifiers starting with SIG are reserved by ANSI C.
AC_DEFUN(AC_TYPE_SIGNAL,
[AC_MSG_CHECKING([return type of signal handlers])
[int i;], ac_cv_type_signal=void, ac_cv_type_signal=int)])dnl
AC_MSG_RESULT($ac_cv_type_signal)
AC_DEFINE_UNQUOTED(RETSIGTYPE, $ac_cv_type_signal)
-])dnl
-dnl
-dnl
+])
+
+
dnl ### Checks for functions
-dnl
-dnl
+
+
AC_DEFUN(AC_FUNC_MMAP,
[AC_MSG_CHECKING(for working mmap)
AC_CACHE_VAL(ac_cv_func_mmap,
if test $ac_cv_func_mmap = yes; then
AC_DEFINE(HAVE_MMAP)
fi
-])dnl
-dnl
+])
+
AC_DEFUN(AC_FUNC_VPRINTF,
[AC_CHECK_FUNC(vprintf, AC_DEFINE(HAVE_VPRINTF))
if test "$ac_cv_func_vprintf" != yes; then
AC_CHECK_FUNC(_doprnt, AC_DEFINE(HAVE_DOPRNT))
fi
-])dnl
-dnl
+])
+
AC_DEFUN(AC_FUNC_VFORK,
[AC_REQUIRE([AC_TYPE_PID_T])dnl
AC_CHECK_HEADER(vfork.h, AC_DEFINE(HAVE_VFORK_H))
if test $ac_cv_func_vfork = no; then
AC_DEFINE(vfork, fork)
fi
-])dnl
-dnl
+])
+
AC_DEFUN(AC_FUNC_WAIT3,
[AC_MSG_CHECKING(for wait3 that fills in rusage)
AC_CACHE_VAL(ac_cv_func_wait3,
if test $ac_cv_func_wait3 = yes; then
AC_DEFINE(HAVE_WAIT3)
fi
-])dnl
-dnl
+])
+
AC_DEFUN(AC_FUNC_ALLOCA,
[AC_REQUIRE_CPP()dnl Set CPP; we run AC_EGREP_CPP conditionally.
# The Ultrix 4.2 mips builtin alloca declared by alloca.h only works
AC_DEFINE_UNQUOTED(STACK_DIRECTION, $ac_cv_c_stack_direction)
fi
AC_SUBST(ALLOCA)dnl
-])dnl
-dnl
+])
+
AC_DEFUN(AC_FUNC_GETLOADAVG,
[# Some definitions of getloadavg require that the program be installed setgid.
NEED_SETGID=false
AC_MSG_RESULT($KMEM_GROUP)
fi
AC_SUBST(KMEM_GROUP)dnl
-])dnl
-dnl
+])
+
AC_DEFUN(AC_FUNC_UTIME_NULL,
[AC_MSG_CHECKING(whether utime accepts a null argument)
AC_CACHE_VAL(ac_cv_func_utime_null,
if test $ac_cv_func_utime_null = yes; then
AC_DEFINE(HAVE_UTIME_NULL)
fi
-])dnl
-dnl
+])
+
AC_DEFUN(AC_FUNC_STRCOLL,
[AC_MSG_CHECKING(for strcoll)
AC_CACHE_VAL(ac_cv_func_strcoll,
if test $ac_cv_func_strcoll = yes; then
AC_DEFINE(HAVE_STRCOLL)
fi
-])dnl
-dnl
+])
+
AC_DEFUN(AC_FUNC_SETVBUF_REVERSED,
[AC_MSG_CHECKING(whether setvbuf arguments are reversed)
AC_CACHE_VAL(ac_cv_func_setvbuf_reversed,
if test $ac_cv_func_setvbuf_reversed = yes; then
AC_DEFINE(SETVBUF_REVERSED)
fi
-])dnl
-dnl
-dnl
+])
+
+
dnl ### Checks for structure members
-dnl
-dnl
+
+
AC_DEFUN(AC_HEADER_TIME,
[AC_MSG_CHECKING([whether time.h and sys/time.h may both be included])
AC_CACHE_VAL(ac_cv_header_time,
if test $ac_cv_header_time = yes; then
AC_DEFINE(TIME_WITH_SYS_TIME)
fi
-])dnl
-dnl
+])
+
AC_DEFUN(AC_STRUCT_TM,
[AC_MSG_CHECKING([whether struct tm is in sys/time.h or time.h])
AC_CACHE_VAL(ac_cv_struct_tm,
if test $ac_cv_struct_tm = sys/time.h; then
AC_DEFINE(TM_IN_SYS_TIME)
fi
-])dnl
-dnl
+])
+
AC_DEFUN(AC_STRUCT_TIMEZONE,
[AC_REQUIRE([AC_STRUCT_TM])dnl
AC_MSG_CHECKING([for tm_zone in struct tm])
AC_DEFINE(HAVE_TZNAME)
fi
fi
-])dnl
-dnl
+])
+
AC_DEFUN(AC_STRUCT_ST_BLOCKS,
[AC_MSG_CHECKING([for st_blocks in struct stat])
AC_CACHE_VAL(ac_cv_struct_st_blocks,
LIBOBJS="$LIBOBJS fileblocks.o"
fi
AC_SUBST(LIBOBJS)dnl
-])dnl
-dnl
+])
+
AC_DEFUN(AC_STRUCT_ST_BLKSIZE,
[AC_MSG_CHECKING([for st_blksize in struct stat])
AC_CACHE_VAL(ac_cv_struct_st_blksize,
if test $ac_cv_struct_st_blksize = yes; then
AC_DEFINE(HAVE_ST_BLKSIZE)
fi
-])dnl
-dnl
+])
+
AC_DEFUN(AC_STRUCT_ST_RDEV,
[AC_MSG_CHECKING([for st_rdev in struct stat])
AC_CACHE_VAL(ac_cv_struct_st_rdev,
if test $ac_cv_struct_st_rdev = yes; then
AC_DEFINE(HAVE_ST_RDEV)
fi
-])dnl
-dnl
-dnl
+])
+
+
dnl ### Checks for compiler characteristics
-dnl
-dnl
+
+
AC_DEFUN(AC_C_CROSS,
[# If we cannot run a trivial program, we must be cross compiling.
AC_MSG_CHECKING(whether cross-compiling)
[AC_TRY_RUN([main(){exit(0);}], ac_cv_c_cross=no, ac_cv_c_cross=yes)])dnl
cross_compiling=$ac_cv_c_cross
AC_MSG_RESULT($ac_cv_c_cross)
-])dnl
-dnl
+])
+
AC_DEFUN(AC_C_CHAR_UNSIGNED,
[AC_MSG_CHECKING(whether char is unsigned)
AC_CACHE_VAL(ac_cv_c_char_unsigned,
# gcc predefines this symbol on systems where it applies.
AC_DEFINE(__CHAR_UNSIGNED__)
fi
-])dnl
-dnl
+])
+
AC_DEFUN(AC_C_LONG_DOUBLE,
[AC_MSG_CHECKING(for long double)
AC_CACHE_VAL(ac_cv_c_long_double,
if test $ac_cv_c_long_double = yes; then
AC_DEFINE(HAVE_LONG_DOUBLE)
fi
-])dnl
-dnl
+])
+
AC_DEFUN(AC_INT_16_BITS,
[AC_OBSOLETE([$0], [; instead use AC_CHECK_SIZEOF(int)])
AC_MSG_CHECKING(whether int is 16 bits)
AC_TRY_RUN([main() { exit(sizeof(int) != 2); }],
[AC_MSG_RESULT(yes)
AC_DEFINE(INT_16_BITS)], AC_MSG_RESULT(no))
-])dnl
-dnl
+])
+
AC_DEFUN(AC_LONG_64_BITS,
[AC_OBSOLETE([$0], [; instead use AC_CHECK_SIZEOF(long)])
AC_MSG_CHECKING(whether long int is 64 bits)
AC_TRY_RUN([main() { exit(sizeof(long int) != 8); }],
[AC_MSG_RESULT(yes)
AC_DEFINE(LONG_64_BITS)], AC_MSG_RESULT(no))
-])dnl
-dnl
+])
+
AC_DEFUN(AC_C_BIGENDIAN,
[AC_MSG_CHECKING(whether byte ordering is bigendian)
AC_CACHE_VAL(ac_cv_c_bigendian,
if test $ac_cv_c_bigendian = yes; then
AC_DEFINE(WORDS_BIGENDIAN)
fi
-])dnl
-dnl
+])
+
AC_DEFUN(AC_C_INLINE,
[AC_MSG_CHECKING([for inline])
AC_CACHE_VAL(ac_cv_c_inline,
if test $ac_cv_c_inline = no; then
AC_DEFINE(inline, __inline)
fi
-])dnl
+])
+
AC_DEFUN(AC_C_CONST,
[dnl This message is consistent in form with the other checking messages,
dnl and with the result message.
if test $ac_cv_c_const = no; then
AC_DEFINE(const, )
fi
-])dnl
-dnl
+])
+
AC_DEFUN(AC_ARG_ARRAY,
[errprint(__file__:__line__: [$0] has been removed; don't do unportable things with arguments
-)m4exit(4)])dnl
-dnl
-dnl
+)m4exit(4)])
+
+
dnl ### Checks for operating system services
-dnl
-dnl
+
+
AC_DEFUN(AC_SYS_INTERPRETER,
[# Pull the hash mark out of the macro call to avoid m4 problems.
ac_msg="whether #! works in shell scripts"
fi
rm -f conftest])dnl
AC_MSG_RESULT($ac_cv_sys_interpreter)
-])dnl
-dnl
+])
+
AC_DEFUN(AC_HAVE_POUNDBANG,
[errprint(__file__:__line__: [$0 has been replaced by AC_SYS_INTERPRETER, taking no arguments
-])m4exit(4)])dnl
-dnl
+])m4exit(4)])
+
AC_DEFUN(AC_SYS_LONG_FILE_NAMES,
[AC_MSG_CHECKING(for long file names)
AC_CACHE_VAL(ac_cv_sys_long_file_names,
if test $ac_cv_sys_long_file_names = yes; then
AC_DEFINE(HAVE_LONG_FILE_NAMES)
fi
-])dnl
-dnl
+])
+
AC_DEFUN(AC_SYS_RESTARTABLE_SYSCALLS,
[AC_MSG_CHECKING(for restartable system calls)
AC_CACHE_VAL(ac_cv_sys_restartable_syscalls,
if test $ac_cv_sys_restartable_syscalls = yes; then
AC_DEFINE(HAVE_RESTARTABLE_SYSCALLS)
fi
-])dnl
-dnl
+])
+
AC_DEFUN(AC_PATH_X,
[AC_REQUIRE_CPP()dnl Set CPP; we run AC_PATH_X_DIRECT conditionally.
# If we find X, set shell vars x_includes and x_libraries to the
ac_cv_path_x="no_x= ac_x_includes=$x_includes ac_x_libraries=$x_libraries"
AC_MSG_RESULT([libraries $x_libraries, headers $x_includes])
fi
-])dnl
-dnl
+])
+
dnl Internal subroutine of AC_PATH_X.
dnl Set ac_x_includes, ac_x_libraries, and no_x (initially yes).
AC_DEFUN(AC_PATH_X_XMKMF,
cd ..
rm -fr conftestdir
fi
-])dnl
-dnl
+])
+
dnl Internal subroutine of AC_PATH_X.
dnl Set ac_x_includes, ac_x_libraries, and no_x (initially yes).
AC_DEFUN(AC_PATH_X_DIRECT,
[test -z "$x_direct_test_library" && x_direct_test_library=Xt
+test -z "$x_direct_test_function" && x_direct_test_function=XtMalloc
test -z "$x_direct_test_include" && x_direct_test_include=X11/Intrinsic.h
-AC_TRY_CPP([#include <$x_direct_test_include>], [no_x= ac_x_includes=],
+AC_TRY_CPP([#include <$x_direct_test_include>],
+[no_x= ac_x_includes=],
[ for ac_dir in \
/usr/X11R6/include \
/usr/X11R5/include \
fi
done])
-# Check for the libraries. First see if replacing the include by
-# lib works.
-AC_CHECK_LIB("$x_direct_test_library", main, [no_x= ac_x_libraries=],
-[for ac_dir in `echo "$ac_x_includes" | sed s/include/lib/` \
+# Check for the libraries.
+# See if we find them without any special options.
+# Don't add to $LIBS permanently.
+ac_save_LIBS="${LIBS}"
+LIBS="${LIBS} -l$x_direct_test_library"
+AC_TRY_LINK(, [${x_direct_test_function}()],
+[LIBS="${ac_save_LIBS}" no_x= ac_x_libraries=],
+[LIBS="${ac_save_LIBS}"
+# First see if replacing the include by lib works.
+for ac_dir in `echo "$ac_x_includes" | sed s/include/lib/` \
/usr/X11R6/lib \
/usr/X11R5/lib \
/usr/X11R4/lib \
break 2
fi
done
-done])])dnl
-dnl
+done])])
+
dnl Find additional X libraries, magic flags, etc.
AC_DEFUN(AC_PATH_XTRA,
[AC_REQUIRE([AC_OS_ISC])dnl
AC_REQUIRE([AC_PATH_X])dnl
-AC_CHECKING(for additional X libraries and flags)
if test "$no_x" = yes; then
# Not all programs may use this symbol, but it does not hurt to define it.
X_CFLAGS="$X_CFLAGS -DX_DISPLAY_MISSING"
# Martyn.Johnson@cl.cam.ac.uk says this is needed for Ultrix, if the X
# libraries were built with DECnet support. And karl@cs.umb.edu says
# the Alpha needs dnet_stub (dnet does not exist).
- AC_CHECK_LIB(dnet, dnet_ntoa,
- [X_EXTRA_LIBS="$X_EXTRA_LIBS -ldnet" ac_have_dnet=yes], ac_have_dnet=no)
- if test "$ac_have_dnet" = no; then
+ AC_CHECK_LIB(dnet, dnet_ntoa, [X_EXTRA_LIBS="$X_EXTRA_LIBS -ldnet"])
+ if test $ac_cv_lib_dnet = no; then
AC_CHECK_LIB(dnet_stub, dnet_ntoa,
[X_EXTRA_LIBS="$X_EXTRA_LIBS -ldnet_stub"])
fi
AC_SUBST(X_CFLAGS)dnl
AC_SUBST(X_LIBS)dnl
AC_SUBST(X_EXTRA_LIBS)dnl
-])dnl
-dnl
-dnl
+])
+
+
dnl ### Checks for UNIX variants
dnl These are kludges; we need a more systematic approach.
-dnl
-dnl
+
+
AC_DEFUN(AC_OS_AIX,
[AC_BEFORE([$0], [AC_TRY_LINK])dnl
AC_BEFORE([$0], [AC_TRY_RUN])dnl
yes
#endif
], [AC_MSG_RESULT(yes); AC_DEFINE(_ALL_SOURCE)], AC_MSG_RESULT(no))
-])dnl
-dnl
+])
+
AC_DEFUN(AC_OS_MINIX,
[AC_BEFORE([$0], [AC_TRY_LINK])dnl
AC_BEFORE([$0], [AC_TRY_RUN])dnl
AC_DEFINE(_POSIX_1_SOURCE, 2)
AC_DEFINE(_MINIX)
fi
-])dnl
-dnl
+])
+
AC_DEFUN(AC_OS_ISC,
[AC_BEFORE([$0], [AC_TRY_LINK])dnl
AC_BEFORE([$0], [AC_TRY_RUN])dnl
AC_MSG_RESULT(no)
ISC=
fi
-])dnl
-dnl
+])
+
AC_DEFUN(AC_OS_XENIX,
[AC_REQUIRE([AC_DIR_HEADER])dnl
AC_MSG_CHECKING(for Xenix)
LIBS="-ldir $LIBS" # Make sure -ldir precedes -lx.
fi
fi
-])dnl
-dnl
+])
+
AC_DEFUN(AC_OS_SCO,
[AC_CHECK_LIB(intl, strftime, LIBS="$LIBS -lintl")
-])dnl
-dnl
+])
+
AC_DEFUN(AC_OS_IRIX,
[AC_CHECK_LIB(sun, getmntent, LIBS="$LIBS -lsun")
-])dnl
-dnl
+])
+
AC_DEFUN(AC_OS_DYNIX,
[AC_CHECK_LIB(seq, getmntent, LIBS="$LIBS -lseq")
-])dnl
+])
esac
tmpout=/tmp/acout.$$
-print_version=
+show_version=no
while test $# -gt 0 ; do
case "${1}" in
AC_MACRODIR="${1}"
shift ;;
-v | --version | --v* )
- print_version="-DAC_PRINT_VERSION"
- infile=/dev/null
- shift ;;
+ show_version=yes; shift ;;
-- ) # Stop option processing
shift; break ;;
- ) # Use stdin as input.
esac
done
-if test -z "$print_version"; then
- case $# in
- 0) infile=configure.in ;;
- 1) infile="$1" ;;
- *) echo "$usage" >&2; exit 1 ;;
- esac
-
- trap 'rm -f $tmpin $tmpout; exit 1' 1 2 15
-
- if test z$infile = z-; then
- tmpin=/tmp/acin.$$
- infile=$tmpin
- cat > $infile
- elif test ! -r "${infile}"; then
- echo "autoconf: ${infile}: No such file or directory" >&2
- exit 1
- fi
+if test $show_version = yes; then
+ version=`sed -n 's/define.AC_ACVERSION.[ ]*\([0-9.]*\).*/\1/p' \
+ $AC_MACRODIR/acgeneral.m4`
+ echo "Autoconf version $version"
+ exit 0
+fi
+
+case $# in
+ 0) infile=configure.in ;;
+ 1) infile="$1" ;;
+ *) echo "$usage" >&2; exit 1 ;;
+esac
+
+trap 'rm -f $tmpin $tmpout; exit 1' 1 2 15
+
+if test z$infile = z-; then
+ tmpin=/tmp/acin.$$
+ infile=$tmpin
+ cat > $infile
+elif test ! -r "${infile}"; then
+ echo "autoconf: ${infile}: No such file or directory" >&2
+ exit 1
fi
# Use the frozen version of Autoconf if available.
*) echo Autoconf requires GNU m4 1.1 or later >&2; rm -f $tmpin; exit 1 ;;
esac
-$M4 -I$AC_MACRODIR $print_version $r autoconf.m4$f $infile > $tmpout || { rm -f $tmpin $tmpout; exit 2; }
-
-if test -n "$print_version"; then
- cat $tmpout
- rm -f $tmpout
- exit 0
-fi
+$M4 -I$AC_MACRODIR $r autoconf.m4$f $infile > $tmpout || { rm -f $tmpin $tmpout; exit 2; }
# You could add your own prefixes to pattern if you wanted to check for
# them too, e.g. pattern="AC_\|ILT_", except that UNIX sed doesn't do
esac
tmpout=/tmp/acout.$$
-print_version=
+show_version=no
while test $# -gt 0 ; do
case "${1}" in
AC_MACRODIR="${1}"
shift ;;
-v | --version | --v* )
- print_version="-DAC_PRINT_VERSION"
- infile=/dev/null
- shift ;;
+ show_version=yes; shift ;;
-- ) # Stop option processing
shift; break ;;
- ) # Use stdin as input.
esac
done
-if test -z "$print_version"; then
- case $# in
- 0) infile=configure.in ;;
- 1) infile="$1" ;;
- *) echo "$usage" >&2; exit 1 ;;
- esac
-
- trap 'rm -f $tmpin $tmpout; exit 1' 1 2 15
-
- if test z$infile = z-; then
- tmpin=/tmp/acin.$$
- infile=$tmpin
- cat > $infile
- elif test ! -r "${infile}"; then
- echo "autoconf: ${infile}: No such file or directory" >&2
- exit 1
- fi
+if test $show_version = yes; then
+ version=`sed -n 's/define.AC_ACVERSION.[ ]*\([0-9.]*\).*/\1/p' \
+ $AC_MACRODIR/acgeneral.m4`
+ echo "Autoconf version $version"
+ exit 0
+fi
+
+case $# in
+ 0) infile=configure.in ;;
+ 1) infile="$1" ;;
+ *) echo "$usage" >&2; exit 1 ;;
+esac
+
+trap 'rm -f $tmpin $tmpout; exit 1' 1 2 15
+
+if test z$infile = z-; then
+ tmpin=/tmp/acin.$$
+ infile=$tmpin
+ cat > $infile
+elif test ! -r "${infile}"; then
+ echo "autoconf: ${infile}: No such file or directory" >&2
+ exit 1
fi
# Use the frozen version of Autoconf if available.
*) echo Autoconf requires GNU m4 1.1 or later >&2; rm -f $tmpin; exit 1 ;;
esac
-$M4 -I$AC_MACRODIR $print_version $r autoconf.m4$f $infile > $tmpout || { rm -f $tmpin $tmpout; exit 2; }
-
-if test -n "$print_version"; then
- cat $tmpout
- rm -f $tmpout
- exit 0
-fi
+$M4 -I$AC_MACRODIR $r autoconf.m4$f $infile > $tmpout || { rm -f $tmpin $tmpout; exit 2; }
# You could add your own prefixes to pattern if you wanted to check for
# them too, e.g. pattern="AC_\|ILT_", except that UNIX sed doesn't do
@c @setchapternewpage odd
@c %**end of header
-@set EDITION 1.109
-@set VERSION 1.109
+@set EDITION 1.110
+@set VERSION 1.110
@set UPDATED August 1994
@iftex
@table @code
@item --help
+@itemx -h
Print a summary of the command line options and exit.
@item --macrodir=@var{dir}
+@itemx -m @var{dir}
Look for the Autoconf macro files in directory @var{dir} instead of the
default installation directory.
default installation directory.
@item --version
-@itemx -v
Print the version number of @code{autoupdate} and exit.
@end table
subdirectories to recurse into.
@end defmac
-@defmac AC_OUTPUT (@r{[}@var{file}@dots{}@r{] [,}@var{extra-cmds}@r{]})
+@defmac AC_OUTPUT (@r{[}@var{file}@dots{}@r{] [,}@var{extra-cmds}@r{] [,}@var{init-cmds}@r{]})
@maindex OUTPUT
Create output files (typically one or more @file{Makefile}s) and
@file{config.status}. If @code{AC_CONFIG_HEADER} has been called, also
@end example
If you pass @var{extra-cmds}, those commands will be inserted into
-@file{config.status} to be run after all its other processing.
+@file{config.status} to be run after all its other processing. If
+@var{init-cmds} are given, they are inserted just before
+@var{extra-cmds}, with shell variable, command, and backslash
+substitutions performed on them in @code{configure}. You can use
+@var{init-cmds} to pass variables from @code{configure} to the
+@var{extra-cmds}.
@end defmac
@node Package Options, Versions, Output, Operation
@defmac AC_PATH_X
@maindex PATH_X
-Try to locate the X Window System include files and libraries. Try
-first by running @code{xmkmf} on a trivial @file{Imakefile} and
-examining the @file{Makefile} that it produces. If that fails (such as
-if @code{xmkmf} is not present), look for them in several directories
-where they often reside. If either method is successful, set the shell
-variables @code{x_includes} and @code{x_libraries} to their locations,
-unless they are in directories the compiler searches by default.
+Try to locate the X Window System include files and libraries. If the
+user gave the command line options @samp{--x-includes=@var{dir}} and
+@samp{--x-libraries=@var{dir}}, use those directories. If either or
+both were not given, get the missing values by running @code{xmkmf} on a
+trivial @file{Imakefile} and examining the @file{Makefile} that it
+produces. If that fails (such as if @code{xmkmf} is not present), look
+for them in several directories where they often reside. If either
+method is successful, set the shell variables @code{x_includes} and
+@code{x_libraries} to their locations, unless they are in directories
+the compiler searches by default.
If both methods fail, or the user gave the command line option
@samp{--without-x}, set the shell variable @code{no_x} to @samp{yes};
otherwise set it to the empty string.
-
-The command line options @samp{--x-includes=@var{dir}} and
-@samp{--x-libraries=@var{dir}} override the values chosen by this macro.
@end defmac
@defmac AC_PATH_XTRA
These macros check the output of the C compiler system. They @emph{do
not} cache the results of their tests for future use (@pxref{Caching
Values}), because they don't know enough about the information they are
-checking for to generate a cache variable name. The checks for
-particular kinds of C features call these macros and do cache their
-results.
+checking for to generate a cache variable name. They also do not print
+any messages, for the same reason. The checks for particular kinds of C
+features call these macros and do cache their results and print messages
+about what they're checking for.
@defmac AC_COMPILE_CHECK (@var{echo-text}, @var{includes}, @var{function-body}, @var{action-if-found} @r{[}, @var{action-if-not-found}@r{]})
@maindex COMPILE_CHECK
If the output of running the preprocessor on the system header file
@var{header-file} contains the @code{egrep} regular expression
@var{pattern}, execute shell commands @var{action-if-found}, otherwise
-execute
+execute @var{action-if-not-found}.
This macro calls @code{AC_PROG_CPP} or @code{AC_PROG_CXXCPP} (depending
on which language is current, @pxref{Language Choice}), if it hasn't
An Autoconf macro definition looks like this:
@example
-AC_DEFUN(@var{macro-name}, [@var{macro-body}])dnl
+AC_DEFUN(@var{macro-name}, [@var{macro-body}])
@end example
@noindent
The square brackets here do not indicate optional text: they should
-literally be present in the macro definition.
-
-The @code{m4} builtin @code{dnl} prevents a newline from being inserted
-in the output where the macro is defined; without it, the generated
-@code{configure} script would begin with dozens of blank lines.
-@code{dnl} is also used to introduce comments in @code{m4}; it causes
-@code{m4} to discard the rest of the input line.
+literally be present in the macro definition to avoid macro expansion
+problems (@pxref{Quoting}). You can refer to any arguments passed to
+the macro as @samp{$1}, @samp{$2}, etc.
-You should quote the entire macro body with square brackets to avoid
-macro expansion problems (@pxref{Quoting}). You can refer to any
-arguments passed to the macro as @samp{$1}, @samp{$2}, etc.
+The @code{m4} builtin @code{dnl} is used to introduce comments in
+@code{m4}; it causes @code{m4} to discard the text through the next
+newline. It is not needed between macro definitions in @file{acsite.m4}
+and @file{aclocal.m4}, because all output is discarded until
+@code{AC_INIT} is called.
@xref{Definitions, , How to define new macros, m4.info, GNU m4}, for
more complete information on writing @code{m4} macros.
@node Checking for Files, Checking for Symbols, Portable Shell, Writing Macros
@section Checking for Files
-If you need to check whether a file other than a C header file exists,
-use @samp{test -f @var{filename}}. If you need to make multiple checks
-using @code{test}, combine them with the shell operators @samp{&&} and
-@samp{||} instead of using the @code{test} operators @samp{-a} and
-@samp{-o}. On System V, the precedence of @samp{-a} and @samp{-o} is
-wrong relative to the unary operators; consequently, POSIX does not
-specify them, so using them is nonportable. If you combine @samp{&&}
-and @samp{||} in the same statement, keep in mind that they have equal
-precedence.
+To enable @code{configure} scripts to support cross-compilation, they
+shouldn't do anything that tests features of the host system instead of
+the target system. But occasionally you may find it necessary to check
+whether some arbitrary file exists.
+
+To do so, use @samp{test -f @var{filename}}. If you need to make
+multiple checks using @code{test}, combine them with the shell operators
+@samp{&&} and @samp{||} instead of using the @code{test} operators
+@samp{-a} and @samp{-o}. On System V, the precedence of @samp{-a} and
+@samp{-o} is wrong relative to the unary operators; consequently, POSIX
+does not specify them, so using them is nonportable. If you combine
+@samp{&&} and @samp{||} in the same statement, keep in mind that they
+have equal precedence.
Do not use @samp{test -x}, because 4.3BSD does not have it. Use
@samp{test -f} or @samp{test -r} instead.
choose a value for those parameters based on the canonical system name
(@pxref{Manual Configuration}).
-To enable @code{configure} scripts to support cross-compilation, they
-shouldn't do anything that tests features of the host system instead of
-the target system.
-
@menu
* Guidelines:: General rules for writing test programs.
* Test Functions:: Special ways to work around problems.
ambiguous, always printing a result. I regularized the names of the
macros and cleaned up coding style inconsistencies. I added some
auxiliary utilities that I had developed to help convert source code
-packages to use Autoconf. And I began a testsuite, because experience
+packages to use Autoconf. With the help of
+@ifinfo
+Franc,ois
+@end ifinfo
+@tex
+Fran\c cois
+@end tex
+Pinard, I made the macros not interrupt each others' messages.
+(That feature revealed some performance bottlenecks in GNU @code{m4},
+which he hastily rewrote!)
+And I began a testsuite, because experience
had shown that Autoconf has a pronounced tendency to regress when we
change it.
test -f "${M4}" || M4=m4 ;;
esac
-print_version=""
+show_version=no
while test $# -gt 0 ; do
case "z${1}" in
z-h | z--help | z--h* )
AC_MACRODIR="${1}"
shift ;;
z-v | z--version | z--v* )
- print_version="-DAC_PRINT_VERSION"
- shift ;;
+ show_version=yes; shift ;;
z-- ) # Stop option processing
shift; break ;;
z- ) # Use stdin as input.
esac
done
+if test $show_version = yes; then
+ version=`sed -n 's/define.AC_ACVERSION.[ ]*\([0-9.]*\).*/\1/p' \
+ $AC_MACRODIR/acgeneral.m4`
+ echo "Autoconf version $version"
+ exit 0
+fi
+
TEMPLATES="${AC_MACRODIR}/acconfig.h"
test -r acconfig.h && TEMPLATES="${TEMPLATES} acconfig.h"
case $# in
- 0) if test -n "$print_version"
- then infile=/dev/null
- else infile=configure.in; fi ;;
+ 0) infile=configure.in ;;
1) infile=$1 ;;
*) echo "$usage" >&2; exit 1 ;;
esac
# Extract assignments of SYMS, TYPES, FUNCS, HEADERS, and LIBS from the
# modified autoconf processing of the input file. The sed hair is
# necessary to win for multi-line macro invocations.
-eval "`$M4 -I$AC_MACRODIR $print_version $r autoheader.m4$f $infile |
+eval "`$M4 -I$AC_MACRODIR $r autoheader.m4$f $infile |
sed -n -e '
: again
/^@@@.*@@@$/s/^@@@\(.*\)@@@$/\1/p
b again
}'`"
-test -n "$print_version" && exit 0
-
# Make SYMS newline-separated rather than blank-separated, and remove dups.
# Start each symbol with a blank (to match the blank after "#undef")
# to reduce the possibility of mistakenly matching another symbol that
#undef SIZEOF_${sym}"
done
-for func in `for x in $funcs; do echo $x; done | sort | uniq`; do
- sym="`echo ${func} | sed 's/[^a-zA-Z0-9_]/_/g' | tr '[a-z]' '[A-Z]'`"
- echo "
+# /bin/sh on the Alpha gives `for' a random value if $funcs is empty.
+if test -n "$funcs"; then
+ for func in `for x in $funcs; do echo $x; done | sort | uniq`; do
+ sym="`echo ${func} | sed 's/[^a-zA-Z0-9_]/_/g' | tr '[a-z]' '[A-Z]'`"
+ echo "
/* Define if you have the ${func} function. */
#undef HAVE_${sym}"
-done
+ done
+fi
-for header in `for x in $headers; do echo $x; done | sort | uniq`; do
- sym="`echo ${header} | sed 's/[^a-zA-Z0-9_]/_/g' | tr '[a-z]' '[A-Z]'`"
- echo "
+if test -n "$headers"; then
+ for header in `for x in $headers; do echo $x; done | sort | uniq`; do
+ sym="`echo ${header} | sed 's/[^a-zA-Z0-9_]/_/g' | tr '[a-z]' '[A-Z]'`"
+ echo "
/* Define if you have the <${header}> header file. */
#undef HAVE_${sym}"
-done
+ done
+fi
-for lib in `for x in $libs; do echo $x; done | sort | uniq`; do
- sym="`echo ${lib} | sed 's/[^a-zA-Z0-9_]/_/g' | tr '[a-z]' '[A-Z]'`"
- echo "
+if test -n "$libs"; then
+ for lib in `for x in $libs; do echo $x; done | sort | uniq`; do
+ sym="`echo ${lib} | sed 's/[^a-zA-Z0-9_]/_/g' | tr '[a-z]' '[A-Z]'`"
+ echo "
/* Define if you have the ${lib} library (-l${lib}). */
#undef HAVE_LIB${sym}"
-done
+ done
+fi
test -r acconfig.h && grep @BOTTOM@ acconfig.h >/dev/null &&
sed '1,/@BOTTOM@/d' acconfig.h
test -f "${M4}" || M4=m4 ;;
esac
-print_version=""
+show_version=no
while test $# -gt 0 ; do
case "z${1}" in
z-h | z--help | z--h* )
AC_MACRODIR="${1}"
shift ;;
z-v | z--version | z--v* )
- print_version="-DAC_PRINT_VERSION"
- shift ;;
+ show_version=yes; shift ;;
z-- ) # Stop option processing
shift; break ;;
z- ) # Use stdin as input.
esac
done
+if test $show_version = yes; then
+ version=`sed -n 's/define.AC_ACVERSION.[ ]*\([0-9.]*\).*/\1/p' \
+ $AC_MACRODIR/acgeneral.m4`
+ echo "Autoconf version $version"
+ exit 0
+fi
+
TEMPLATES="${AC_MACRODIR}/acconfig.h"
test -r acconfig.h && TEMPLATES="${TEMPLATES} acconfig.h"
case $# in
- 0) if test -n "$print_version"
- then infile=/dev/null
- else infile=configure.in; fi ;;
+ 0) infile=configure.in ;;
1) infile=$1 ;;
*) echo "$usage" >&2; exit 1 ;;
esac
# Extract assignments of SYMS, TYPES, FUNCS, HEADERS, and LIBS from the
# modified autoconf processing of the input file. The sed hair is
# necessary to win for multi-line macro invocations.
-eval "`$M4 -I$AC_MACRODIR $print_version $r autoheader.m4$f $infile |
+eval "`$M4 -I$AC_MACRODIR $r autoheader.m4$f $infile |
sed -n -e '
: again
/^@@@.*@@@$/s/^@@@\(.*\)@@@$/\1/p
b again
}'`"
-test -n "$print_version" && exit 0
-
# Make SYMS newline-separated rather than blank-separated, and remove dups.
# Start each symbol with a blank (to match the blank after "#undef")
# to reduce the possibility of mistakenly matching another symbol that
#undef SIZEOF_${sym}"
done
-for func in `for x in $funcs; do echo $x; done | sort | uniq`; do
- sym="`echo ${func} | sed 's/[^a-zA-Z0-9_]/_/g' | tr '[a-z]' '[A-Z]'`"
- echo "
+# /bin/sh on the Alpha gives `for' a random value if $funcs is empty.
+if test -n "$funcs"; then
+ for func in `for x in $funcs; do echo $x; done | sort | uniq`; do
+ sym="`echo ${func} | sed 's/[^a-zA-Z0-9_]/_/g' | tr '[a-z]' '[A-Z]'`"
+ echo "
/* Define if you have the ${func} function. */
#undef HAVE_${sym}"
-done
+ done
+fi
-for header in `for x in $headers; do echo $x; done | sort | uniq`; do
- sym="`echo ${header} | sed 's/[^a-zA-Z0-9_]/_/g' | tr '[a-z]' '[A-Z]'`"
- echo "
+if test -n "$headers"; then
+ for header in `for x in $headers; do echo $x; done | sort | uniq`; do
+ sym="`echo ${header} | sed 's/[^a-zA-Z0-9_]/_/g' | tr '[a-z]' '[A-Z]'`"
+ echo "
/* Define if you have the <${header}> header file. */
#undef HAVE_${sym}"
-done
+ done
+fi
-for lib in `for x in $libs; do echo $x; done | sort | uniq`; do
- sym="`echo ${lib} | sed 's/[^a-zA-Z0-9_]/_/g' | tr '[a-z]' '[A-Z]'`"
- echo "
+if test -n "$libs"; then
+ for lib in `for x in $libs; do echo $x; done | sort | uniq`; do
+ sym="`echo ${lib} | sed 's/[^a-zA-Z0-9_]/_/g' | tr '[a-z]' '[A-Z]'`"
+ echo "
/* Define if you have the ${lib} library (-l${lib}). */
#undef HAVE_LIB${sym}"
-done
+ done
+fi
test -r acconfig.h && grep @BOTTOM@ acconfig.h >/dev/null &&
sed '1,/@BOTTOM@/d' acconfig.h
# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
usage="\
-Usage: autoreconf [--help] [--macrodir=dir] [--verbose] [--version]
- [directory...]"
+Usage: autoreconf [-h] [--help] [-m dir] [--macrodir=dir]
+ [--verbose] [--version] [directory...]"
verbose=no
show_version=no
while test $# -gt 0; do
case "$1" in
- --help | --hel | --he | --h)
+ -h | --help | --hel | --he | --h)
echo "$usage"; exit 0 ;;
--macrodir=* | --m*=* )
AC_MACRODIR="`echo \"$1\" | sed -e 's/^[^=]*=//'`"
# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
usage="\
-Usage: autoreconf [--help] [--macrodir=dir] [--verbose] [--version]
- [directory...]"
+Usage: autoreconf [-h] [--help] [-m dir] [--macrodir=dir]
+ [--verbose] [--version] [directory...]"
verbose=no
show_version=no
while test $# -gt 0; do
case "$1" in
- --help | --hel | --he | --h)
+ -h | --help | --hel | --he | --h)
echo "$usage"; exit 0 ;;
--macrodir=* | --m*=* )
AC_MACRODIR="`echo \"$1\" | sed -e 's/^[^=]*=//'`"
esac
tmpout=/tmp/acout.$$
-print_version=
+show_version=no
while test $# -gt 0 ; do
case "${1}" in
AC_MACRODIR="${1}"
shift ;;
-v | --version | --v* )
- print_version="-DAC_PRINT_VERSION"
- infile=/dev/null
- shift ;;
+ show_version=yes; shift ;;
-- ) # Stop option processing
shift; break ;;
- ) # Use stdin as input.
esac
done
-if test -z "$print_version"; then
- case $# in
- 0) infile=configure.in ;;
- 1) infile="$1" ;;
- *) echo "$usage" >&2; exit 1 ;;
- esac
-
- trap 'rm -f $tmpin $tmpout; exit 1' 1 2 15
-
- if test z$infile = z-; then
- tmpin=/tmp/acin.$$
- infile=$tmpin
- cat > $infile
- elif test ! -r "${infile}"; then
- echo "autoconf: ${infile}: No such file or directory" >&2
- exit 1
- fi
+if test $show_version = yes; then
+ version=`sed -n 's/define.AC_ACVERSION.[ ]*\([0-9.]*\).*/\1/p' \
+ $AC_MACRODIR/acgeneral.m4`
+ echo "Autoconf version $version"
+ exit 0
+fi
+
+case $# in
+ 0) infile=configure.in ;;
+ 1) infile="$1" ;;
+ *) echo "$usage" >&2; exit 1 ;;
+esac
+
+trap 'rm -f $tmpin $tmpout; exit 1' 1 2 15
+
+if test z$infile = z-; then
+ tmpin=/tmp/acin.$$
+ infile=$tmpin
+ cat > $infile
+elif test ! -r "${infile}"; then
+ echo "autoconf: ${infile}: No such file or directory" >&2
+ exit 1
fi
# Use the frozen version of Autoconf if available.
*) echo Autoconf requires GNU m4 1.1 or later >&2; rm -f $tmpin; exit 1 ;;
esac
-$M4 -I$AC_MACRODIR $print_version $r autoconf.m4$f $infile > $tmpout || { rm -f $tmpin $tmpout; exit 2; }
-
-if test -n "$print_version"; then
- cat $tmpout
- rm -f $tmpout
- exit 0
-fi
+$M4 -I$AC_MACRODIR $r autoconf.m4$f $infile > $tmpout || { rm -f $tmpin $tmpout; exit 2; }
# You could add your own prefixes to pattern if you wanted to check for
# them too, e.g. pattern="AC_\|ILT_", except that UNIX sed doesn't do
test -f "${M4}" || M4=m4 ;;
esac
-print_version=""
+show_version=no
while test $# -gt 0 ; do
case "z${1}" in
z-h | z--help | z--h* )
AC_MACRODIR="${1}"
shift ;;
z-v | z--version | z--v* )
- print_version="-DAC_PRINT_VERSION"
- shift ;;
+ show_version=yes; shift ;;
z-- ) # Stop option processing
shift; break ;;
z- ) # Use stdin as input.
esac
done
+if test $show_version = yes; then
+ version=`sed -n 's/define.AC_ACVERSION.[ ]*\([0-9.]*\).*/\1/p' \
+ $AC_MACRODIR/acgeneral.m4`
+ echo "Autoconf version $version"
+ exit 0
+fi
+
TEMPLATES="${AC_MACRODIR}/acconfig.h"
test -r acconfig.h && TEMPLATES="${TEMPLATES} acconfig.h"
case $# in
- 0) if test -n "$print_version"
- then infile=/dev/null
- else infile=configure.in; fi ;;
+ 0) infile=configure.in ;;
1) infile=$1 ;;
*) echo "$usage" >&2; exit 1 ;;
esac
# Extract assignments of SYMS, TYPES, FUNCS, HEADERS, and LIBS from the
# modified autoconf processing of the input file. The sed hair is
# necessary to win for multi-line macro invocations.
-eval "`$M4 -I$AC_MACRODIR $print_version $r autoheader.m4$f $infile |
+eval "`$M4 -I$AC_MACRODIR $r autoheader.m4$f $infile |
sed -n -e '
: again
/^@@@.*@@@$/s/^@@@\(.*\)@@@$/\1/p
b again
}'`"
-test -n "$print_version" && exit 0
-
# Make SYMS newline-separated rather than blank-separated, and remove dups.
# Start each symbol with a blank (to match the blank after "#undef")
# to reduce the possibility of mistakenly matching another symbol that
#undef SIZEOF_${sym}"
done
-for func in `for x in $funcs; do echo $x; done | sort | uniq`; do
- sym="`echo ${func} | sed 's/[^a-zA-Z0-9_]/_/g' | tr '[a-z]' '[A-Z]'`"
- echo "
+# /bin/sh on the Alpha gives `for' a random value if $funcs is empty.
+if test -n "$funcs"; then
+ for func in `for x in $funcs; do echo $x; done | sort | uniq`; do
+ sym="`echo ${func} | sed 's/[^a-zA-Z0-9_]/_/g' | tr '[a-z]' '[A-Z]'`"
+ echo "
/* Define if you have the ${func} function. */
#undef HAVE_${sym}"
-done
+ done
+fi
-for header in `for x in $headers; do echo $x; done | sort | uniq`; do
- sym="`echo ${header} | sed 's/[^a-zA-Z0-9_]/_/g' | tr '[a-z]' '[A-Z]'`"
- echo "
+if test -n "$headers"; then
+ for header in `for x in $headers; do echo $x; done | sort | uniq`; do
+ sym="`echo ${header} | sed 's/[^a-zA-Z0-9_]/_/g' | tr '[a-z]' '[A-Z]'`"
+ echo "
/* Define if you have the <${header}> header file. */
#undef HAVE_${sym}"
-done
+ done
+fi
-for lib in `for x in $libs; do echo $x; done | sort | uniq`; do
- sym="`echo ${lib} | sed 's/[^a-zA-Z0-9_]/_/g' | tr '[a-z]' '[A-Z]'`"
- echo "
+if test -n "$libs"; then
+ for lib in `for x in $libs; do echo $x; done | sort | uniq`; do
+ sym="`echo ${lib} | sed 's/[^a-zA-Z0-9_]/_/g' | tr '[a-z]' '[A-Z]'`"
+ echo "
/* Define if you have the ${lib} library (-l${lib}). */
#undef HAVE_LIB${sym}"
-done
+ done
+fi
test -r acconfig.h && grep @BOTTOM@ acconfig.h >/dev/null &&
sed '1,/@BOTTOM@/d' acconfig.h
# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
usage="\
-Usage: autoreconf [--help] [--macrodir=dir] [--verbose] [--version]
- [directory...]"
+Usage: autoreconf [-h] [--help] [-m dir] [--macrodir=dir]
+ [--verbose] [--version] [directory...]"
verbose=no
show_version=no
while test $# -gt 0; do
case "$1" in
- --help | --hel | --he | --h)
+ -h | --help | --hel | --he | --h)
echo "$usage"; exit 0 ;;
--macrodir=* | --m*=* )
AC_MACRODIR="`echo \"$1\" | sed -e 's/^[^=]*=//'`"
@c @setchapternewpage odd
@c %**end of header
-@set EDITION 1.109
-@set VERSION 1.109
+@set EDITION 1.110
+@set VERSION 1.110
@set UPDATED August 1994
@iftex
@table @code
@item --help
+@itemx -h
Print a summary of the command line options and exit.
@item --macrodir=@var{dir}
+@itemx -m @var{dir}
Look for the Autoconf macro files in directory @var{dir} instead of the
default installation directory.
default installation directory.
@item --version
-@itemx -v
Print the version number of @code{autoupdate} and exit.
@end table
subdirectories to recurse into.
@end defmac
-@defmac AC_OUTPUT (@r{[}@var{file}@dots{}@r{] [,}@var{extra-cmds}@r{]})
+@defmac AC_OUTPUT (@r{[}@var{file}@dots{}@r{] [,}@var{extra-cmds}@r{] [,}@var{init-cmds}@r{]})
@maindex OUTPUT
Create output files (typically one or more @file{Makefile}s) and
@file{config.status}. If @code{AC_CONFIG_HEADER} has been called, also
@end example
If you pass @var{extra-cmds}, those commands will be inserted into
-@file{config.status} to be run after all its other processing.
+@file{config.status} to be run after all its other processing. If
+@var{init-cmds} are given, they are inserted just before
+@var{extra-cmds}, with shell variable, command, and backslash
+substitutions performed on them in @code{configure}. You can use
+@var{init-cmds} to pass variables from @code{configure} to the
+@var{extra-cmds}.
@end defmac
@node Package Options, Versions, Output, Operation
@defmac AC_PATH_X
@maindex PATH_X
-Try to locate the X Window System include files and libraries. Try
-first by running @code{xmkmf} on a trivial @file{Imakefile} and
-examining the @file{Makefile} that it produces. If that fails (such as
-if @code{xmkmf} is not present), look for them in several directories
-where they often reside. If either method is successful, set the shell
-variables @code{x_includes} and @code{x_libraries} to their locations,
-unless they are in directories the compiler searches by default.
+Try to locate the X Window System include files and libraries. If the
+user gave the command line options @samp{--x-includes=@var{dir}} and
+@samp{--x-libraries=@var{dir}}, use those directories. If either or
+both were not given, get the missing values by running @code{xmkmf} on a
+trivial @file{Imakefile} and examining the @file{Makefile} that it
+produces. If that fails (such as if @code{xmkmf} is not present), look
+for them in several directories where they often reside. If either
+method is successful, set the shell variables @code{x_includes} and
+@code{x_libraries} to their locations, unless they are in directories
+the compiler searches by default.
If both methods fail, or the user gave the command line option
@samp{--without-x}, set the shell variable @code{no_x} to @samp{yes};
otherwise set it to the empty string.
-
-The command line options @samp{--x-includes=@var{dir}} and
-@samp{--x-libraries=@var{dir}} override the values chosen by this macro.
@end defmac
@defmac AC_PATH_XTRA
These macros check the output of the C compiler system. They @emph{do
not} cache the results of their tests for future use (@pxref{Caching
Values}), because they don't know enough about the information they are
-checking for to generate a cache variable name. The checks for
-particular kinds of C features call these macros and do cache their
-results.
+checking for to generate a cache variable name. They also do not print
+any messages, for the same reason. The checks for particular kinds of C
+features call these macros and do cache their results and print messages
+about what they're checking for.
@defmac AC_COMPILE_CHECK (@var{echo-text}, @var{includes}, @var{function-body}, @var{action-if-found} @r{[}, @var{action-if-not-found}@r{]})
@maindex COMPILE_CHECK
If the output of running the preprocessor on the system header file
@var{header-file} contains the @code{egrep} regular expression
@var{pattern}, execute shell commands @var{action-if-found}, otherwise
-execute
+execute @var{action-if-not-found}.
This macro calls @code{AC_PROG_CPP} or @code{AC_PROG_CXXCPP} (depending
on which language is current, @pxref{Language Choice}), if it hasn't
An Autoconf macro definition looks like this:
@example
-AC_DEFUN(@var{macro-name}, [@var{macro-body}])dnl
+AC_DEFUN(@var{macro-name}, [@var{macro-body}])
@end example
@noindent
The square brackets here do not indicate optional text: they should
-literally be present in the macro definition.
-
-The @code{m4} builtin @code{dnl} prevents a newline from being inserted
-in the output where the macro is defined; without it, the generated
-@code{configure} script would begin with dozens of blank lines.
-@code{dnl} is also used to introduce comments in @code{m4}; it causes
-@code{m4} to discard the rest of the input line.
+literally be present in the macro definition to avoid macro expansion
+problems (@pxref{Quoting}). You can refer to any arguments passed to
+the macro as @samp{$1}, @samp{$2}, etc.
-You should quote the entire macro body with square brackets to avoid
-macro expansion problems (@pxref{Quoting}). You can refer to any
-arguments passed to the macro as @samp{$1}, @samp{$2}, etc.
+The @code{m4} builtin @code{dnl} is used to introduce comments in
+@code{m4}; it causes @code{m4} to discard the text through the next
+newline. It is not needed between macro definitions in @file{acsite.m4}
+and @file{aclocal.m4}, because all output is discarded until
+@code{AC_INIT} is called.
@xref{Definitions, , How to define new macros, m4.info, GNU m4}, for
more complete information on writing @code{m4} macros.
@node Checking for Files, Checking for Symbols, Portable Shell, Writing Macros
@section Checking for Files
-If you need to check whether a file other than a C header file exists,
-use @samp{test -f @var{filename}}. If you need to make multiple checks
-using @code{test}, combine them with the shell operators @samp{&&} and
-@samp{||} instead of using the @code{test} operators @samp{-a} and
-@samp{-o}. On System V, the precedence of @samp{-a} and @samp{-o} is
-wrong relative to the unary operators; consequently, POSIX does not
-specify them, so using them is nonportable. If you combine @samp{&&}
-and @samp{||} in the same statement, keep in mind that they have equal
-precedence.
+To enable @code{configure} scripts to support cross-compilation, they
+shouldn't do anything that tests features of the host system instead of
+the target system. But occasionally you may find it necessary to check
+whether some arbitrary file exists.
+
+To do so, use @samp{test -f @var{filename}}. If you need to make
+multiple checks using @code{test}, combine them with the shell operators
+@samp{&&} and @samp{||} instead of using the @code{test} operators
+@samp{-a} and @samp{-o}. On System V, the precedence of @samp{-a} and
+@samp{-o} is wrong relative to the unary operators; consequently, POSIX
+does not specify them, so using them is nonportable. If you combine
+@samp{&&} and @samp{||} in the same statement, keep in mind that they
+have equal precedence.
Do not use @samp{test -x}, because 4.3BSD does not have it. Use
@samp{test -f} or @samp{test -r} instead.
choose a value for those parameters based on the canonical system name
(@pxref{Manual Configuration}).
-To enable @code{configure} scripts to support cross-compilation, they
-shouldn't do anything that tests features of the host system instead of
-the target system.
-
@menu
* Guidelines:: General rules for writing test programs.
* Test Functions:: Special ways to work around problems.
ambiguous, always printing a result. I regularized the names of the
macros and cleaned up coding style inconsistencies. I added some
auxiliary utilities that I had developed to help convert source code
-packages to use Autoconf. And I began a testsuite, because experience
+packages to use Autoconf. With the help of
+@ifinfo
+Franc,ois
+@end ifinfo
+@tex
+Fran\c cois
+@end tex
+Pinard, I made the macros not interrupt each others' messages.
+(That feature revealed some performance bottlenecks in GNU @code{m4},
+which he hastily rewrote!)
+And I began a testsuite, because experience
had shown that Autoconf has a pronounced tendency to regress when we
change it.
dnl Franc,ois Pinard, Karl Berry, Richard Pixley, Ian Lance Taylor,
dnl Roland McGrath, Noah Friedman, and david d zuhn.
dnl
-changequote([, ])dnl
-undefine([eval])dnl
-undefine([include])dnl
-undefine([shift])dnl
-undefine([format])dnl
-dnl
+divert(-1)dnl Throw away output until AC_INIT is called.
+changequote([, ])
+
+define(AC_ACVERSION, 1.110)
+
dnl Some old m4's don't support m4exit. But they provide
dnl equivalent functionality by core dumping because of the
dnl long macros we define.
ifdef([__gnu__], , [errprint(Autoconf requires GNU m4.
Install it before installing Autoconf or set the
M4 environment variable to its path name.
-)m4exit(2)])dnl
-dnl
-define(AC_ACVERSION, 1.109)dnl
-dnl This is defined by the --version option of the autoconf script.
-ifdef([AC_PRINT_VERSION], [Autoconf version AC_ACVERSION
-m4exit(0)])dnl
-dnl
-dnl
+)m4exit(2)])
+
+undefine([eval])
+undefine([include])
+undefine([shift])
+undefine([format])
+
+
dnl ### Controlling Autoconf operation
-dnl
-dnl
+
+
dnl m4 output diversions. We let m4 output them all in order at the end,
dnl except that we explicitly undivert AC_DIVERSION_SED.
-dnl
+
dnl AC_DIVERSION_NOTICE - 1 (= 0) AC_REQUIRE'd #!/bin/sh line
define(AC_DIVERSION_NOTICE, 1)dnl copyright notice & option help strings
define(AC_DIVERSION_INIT, 2)dnl initialization code
define(AC_DIVERSION_NORMAL_2, 6)dnl AC_REQUIRE'd code, 2 level deep
define(AC_DIVERSION_NORMAL_1, 7)dnl AC_REQUIRE'd code, 1 level deep
define(AC_DIVERSION_NORMAL, 8)dnl the tests and output code
-dnl
+
dnl Change the diversion stream to STREAM, while stacking old values.
dnl AC_DIVERT_PUSH(STREAM)
define(AC_DIVERT_PUSH,
[pushdef([AC_DIVERSION_CURRENT], $1)dnl
divert(AC_DIVERSION_CURRENT)dnl
-])dnl
-dnl
+])
+
dnl Change the diversion stream to its previous value, unstacking it.
dnl AC_DIVERT_POP()
define(AC_DIVERT_POP,
[popdef([AC_DIVERSION_CURRENT])dnl
divert(AC_DIVERSION_CURRENT)dnl
-])dnl
-dnl
+])
+
dnl Initialize the diversion setup.
-define(AC_DIVERSION_CURRENT, AC_DIVERSION_NORMAL)dnl
-AC_DIVERT_PUSH(AC_DIVERSION_NOTICE)dnl will be later POPed by AC_INIT
-dnl
+define([AC_DIVERSION_CURRENT], AC_DIVERSION_NORMAL)
+dnl This will be popped by AC_REQUIRE in AC_INIT.
+pushdef([AC_DIVERSION_CURRENT], AC_DIVERSION_NOTICE)
+
dnl The prologue for Autoconf macros.
dnl AC_PRO(MACRO-NAME)
define(AC_PRO,
ifelse(AC_DIVERSION_CURRENT, AC_DIVERSION_NORMAL,
[AC_DIVERT_PUSH(builtin(eval, AC_DIVERSION_CURRENT - 1))],
[pushdef([AC_DIVERSION_CURRENT], AC_DIVERSION_CURRENT)])dnl
-])dnl
-dnl
+])
+
dnl The Epilogue for Autoconf macros.
dnl AC_EPI()
define(AC_EPI,
undivert(AC_DIVERSION_NORMAL_2)dnl
undivert(AC_DIVERSION_NORMAL_1)dnl
])dnl
-])dnl
-dnl
+])
+
dnl Define a macro which automatically provides itself. Add machinery
dnl so the macro automatically switches expansion to the diversion
dnl stack if it is not already using it. In this case, once finished,
dnl macros.
dnl AC_DEFUN(NAME, EXPANSION)
define([AC_DEFUN],
-[define($1, [AC_PRO([$1])$2[]AC_EPI()])])dnl
-dnl
+[define($1, [AC_PRO([$1])$2[]AC_EPI()])])
+
dnl AC_INIT_NOTICE()
AC_DEFUN(AC_INIT_NOTICE,
[# Guess values for system-dependent variables and create Makefiles.
# along with this program; if not, write to the Free Software
# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-ac_help=])dnl
-dnl
+ac_help=])
+
dnl AC_INIT_PARSE_ARGS()
AC_DEFUN(AC_INIT_PARSE_ARGS,
[# Save the original args to write them into config.status later.
if test -n "$ac_prev"; then
AC_MSG_ERROR(missing argument to --`echo $ac_prev | sed 's/_/-/g'`)
fi
-])dnl
-dnl
+])
+
dnl Try to have only one #! line, so the script doesn't look funny
dnl for users of AC_REVISION.
dnl AC_INIT_BINSH()
AC_DEFUN(AC_INIT_BINSH,
[#!/bin/sh
-])dnl
-dnl
+])
+
dnl AC_INIT(UNIQUE-FILE-IN-SOURCE-DIR)
AC_DEFUN(AC_INIT,
[sinclude(acsite.m4)dnl
sinclude(./aclocal.m4)dnl
AC_REQUIRE([AC_INIT_BINSH])dnl
AC_INIT_NOTICE
-AC_DIVERT_POP()dnl to NORMAL
+AC_DIVERT_POP()dnl to NORMAL
AC_DIVERT_PUSH(AC_DIVERSION_INIT)dnl
AC_INIT_PARSE_ARGS
AC_INIT_PREPARE($1)dnl
-AC_DIVERT_POP()dnl to NORMAL
-])dnl
-dnl
+AC_DIVERT_POP()dnl to NORMAL
+])
+
dnl AC_INIT_PREPARE(UNIQUE-FILE-IN-SOURCE-DIR)
AC_DEFUN(AC_INIT_PREPARE,
[trap 'rm -fr conftest* confdefs* core $ac_clean_files; exit 1' 1 2 15
AC_SUBST(CXXFLAGS)dnl
AC_SUBST(CPPFLAGS)dnl
AC_SUBST(LDFLAGS)dnl
-])dnl
-dnl
+])
+
dnl AC_ARG_ENABLE(FEATURE, HELP-STRING, ACTION-IF-TRUE [, ACTION-IF-FALSE])
AC_DEFUN(AC_ARG_ENABLE,
[AC_DIVERT_PUSH(AC_DIVERSION_NOTICE)dnl
$4
])dnl
fi
-])dnl
-dnl
+])
+
AC_DEFUN(AC_ENABLE,
[AC_OBSOLETE([$0], [; instead use AC_ARG_ENABLE])dnl
AC_ARG_ENABLE([$1], [ --enable-$1], [$2], [$3])dnl
-])dnl
-dnl
+])
+
dnl AC_ARG_WITH(PACKAGE, HELP-STRING, ACTION-IF-TRUE [, ACTION-IF-FALSE])
AC_DEFUN(AC_ARG_WITH,
[AC_DIVERT_PUSH(AC_DIVERSION_NOTICE)dnl
$4
])dnl
fi
-])dnl
-dnl
+])
+
AC_DEFUN(AC_WITH,
[AC_OBSOLETE([$0], [; instead use AC_ARG_WITH])dnl
AC_ARG_WITH([$1], [ --with-$1], [$2], [$3])dnl
-])dnl
-dnl
+])
+
dnl AC_CONFIG_HEADER(HEADER-TO-CREATE ...)
AC_DEFUN(AC_CONFIG_HEADER,
-[define(AC_LIST_HEADER, $1)])dnl
-dnl
+[define(AC_LIST_HEADER, $1)])
+
dnl AC_REVISION(REVISION-INFO)
AC_DEFUN(AC_REVISION,
[AC_REQUIRE([AC_INIT_BINSH])dnl
-[# From configure.in] translit([$1], $")])dnl
-dnl
+[# From configure.in] translit([$1], $")])
+
dnl Subroutines of AC_PREREQ.
-dnl
+
dnl Change the dots in NUMBER into commas.
dnl AC_PREREQ_SPLIT(NUMBER)
AC_DEFUN(AC_PREREQ_SPLIT,
-[translit($1, ., [, ])])dnl
-dnl
+[translit($1, ., [, ])])
+
dnl Default the ternary version number to 0 (e.g., 1, 7 -> 1, 7, 0).
dnl AC_PREREQ_CANON(MAJOR, MINOR [,TERNARY])
AC_DEFUN(AC_PREREQ_CANON,
-[$1, $2, ifelse([$3], , 0, [$3])])dnl
-dnl
+[$1, $2, ifelse([$3], , 0, [$3])])
+
dnl Complain and exit if version number 1 is less than version number 2.
dnl PRINTABLE2 is the printable version of version number 2.
dnl AC_PREREQ_COMPARE(MAJOR1, MINOR1, TERNARY1, MAJOR2, MINOR2, TERNARY2,
[ifelse(builtin([eval],
[$3 + $2 * 100 + $1 * 10000 < $6 + $5 * 100 + $4 * 10000]), 1,
[errprint(Autoconf version $7 or higher is required for this script
-)m4exit(3)])])dnl
-dnl
+)m4exit(3)])])
+
dnl Complain and exit if the Autoconf version is less than VERSION.
dnl AC_PREREQ(VERSION)
AC_DEFUN(AC_PREREQ,
[AC_PREREQ_COMPARE(AC_PREREQ_CANON(AC_PREREQ_SPLIT(AC_ACVERSION)),
-AC_PREREQ_CANON(AC_PREREQ_SPLIT([$1])), [$1])])dnl
-dnl
+AC_PREREQ_CANON(AC_PREREQ_SPLIT([$1])), [$1])])
+
dnl Run configure in subdirectories DIR...
dnl Not actually done until AC_OUTPUT_SUBDIRS.
dnl AC_CONFIG_SUBDIRS(DIR ...)
define([AC_LIST_SUBDIRS], [$1])dnl
subdirs="AC_LIST_SUBDIRS"
AC_SUBST(subdirs)dnl
-])dnl
-dnl
+])
+
dnl Guess the value for the `prefix' variable by looking for
dnl the argument program along PATH and taking its parent.
dnl Example: if the argument is `gcc' and we find /usr/local/gnu/bin/gcc,
fi
fi
undefine([AC_VAR_NAME])dnl
-])dnl
-dnl
-dnl
+])
+
+
dnl ### Canonicalizing the system type
-dnl
-dnl
+
+
dnl Find install.sh, config.sub, config.guess, and Cygnus configure
dnl in directory DIR. These are auxiliary files used in configuration.
dnl DIR can be either absolute or relative to ${srcdir}.
dnl AC_CONFIG_AUX_DIR(DIR)
AC_DEFUN(AC_CONFIG_AUX_DIR,
-[AC_CONFIG_AUX_DIRS($1 ${srcdir}/$1)])dnl
-dnl
+[AC_CONFIG_AUX_DIRS($1 ${srcdir}/$1)])
+
dnl The default is `${srcdir}' or `${srcdir}/..' or `${srcdir}/../..'.
dnl There's no need to call this macro explicitly; just AC_REQUIRE it.
AC_DEFUN(AC_CONFIG_AUX_DIR_DEFAULT,
-[AC_CONFIG_AUX_DIRS(${srcdir} ${srcdir}/.. ${srcdir}/../..)])dnl
-dnl
+[AC_CONFIG_AUX_DIRS(${srcdir} ${srcdir}/.. ${srcdir}/../..)])
+
dnl Internal subroutine.
dnl Search for the configuration auxiliary files in directory list $1.
dnl We look only for install.sh, so users of AC_PROG_INSTALL
ac_configure=${ac_aux_dir}/configure # This should be Cygnus configure.
ac_install_sh="${ac_aux_dir}/install.sh -c"
AC_PROVIDE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
-])dnl
-dnl
+])
+
dnl Canonicalize the host, target, and build system types.
AC_DEFUN(AC_CANONICAL_SYSTEM,
[AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
AC_CANONICAL_HOST
AC_CANONICAL_TARGET
AC_CANONICAL_BUILD
-])dnl
-dnl
+])
+
dnl Subroutines of AC_CANONICAL_SYSTEM.
-dnl
+
AC_DEFUN(AC_CANONICAL_HOST,
[AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
AC_MSG_CHECKING(host system type)
AC_SUBST(host_cpu)dnl
AC_SUBST(host_vendor)dnl
AC_SUBST(host_os)dnl
-])dnl
-dnl
+])
+
dnl Internal use only.
AC_DEFUN(AC_CANONICAL_TARGET,
[AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
AC_SUBST(target_cpu)dnl
AC_SUBST(target_vendor)dnl
AC_SUBST(target_os)dnl
-])dnl
-dnl
+])
+
dnl Internal use only.
AC_DEFUN(AC_CANONICAL_BUILD,
[AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
AC_SUBST(build_cpu)dnl
AC_SUBST(build_vendor)dnl
AC_SUBST(build_os)dnl
-])dnl
-dnl
+])
+
dnl Link each of the existing files FILE... to the corresponding
dnl link name in LINK...
dnl Not actually done until AC_OUTPUT_LINKS.
dnl AC_LINK_FILES(LINK ..., FILE ...)
AC_DEFUN(AC_LINK_FILES,
-[define([AC_LIST_LINKS], [$1])define([AC_LIST_FILES], [$2])])dnl
-dnl
-dnl
+[define([AC_LIST_LINKS], [$1])define([AC_LIST_FILES], [$2])])
+
+
dnl ### Caching test results
-dnl
-dnl
+
+
dnl Look for site or system specific initialization scripts.
dnl AC_SITE_LOAD()
AC_DEFUN(AC_SITE_LOAD,
. "$ac_site_file"
fi
done
-])dnl
-dnl
+])
+
dnl AC_CACHE_LOAD()
AC_DEFUN(AC_CACHE_LOAD,
[if test -r "$cache_file"; then
echo "creating cache $cache_file"
> $cache_file
fi
-])dnl
-dnl
+])
+
dnl AC_CACHE_SAVE()
AC_DEFUN(AC_CACHE_SAVE,
[if test -w $cache_file; then
else
echo "not updating unwritable cache $cache_file"
fi
-])dnl
-dnl
+])
+
dnl The name of shell var CACHE-ID must contain `_cv_' in order to get saved.
dnl AC_CACHE_VAL(CACHE-ID, COMMANDS-TO-SET-IT)
AC_DEFUN(AC_CACHE_VAL,
else
$2
fi
-])dnl
-dnl
-dnl
+])
+
+
dnl ### Setting variables
-dnl
-dnl
+
+
dnl Set VARIABLE to VALUE, verbatim, or 1.
dnl AC_DEFINE(VARIABLE [, VALUE])
AC_DEFUN(AC_DEFINE,
[cat >> confdefs.h <<\EOF
[#define] $1 ifelse($#, 2, [$2], 1)
EOF
-])dnl
-dnl
+])
+
dnl Similar, but perform shell substitutions $ ` \ once on VALUE.
AC_DEFUN(AC_DEFINE_UNQUOTED,
[cat >> confdefs.h <<EOF
[#define] $1 ifelse($#, 2, [$2], 1)
EOF
-])dnl
-dnl
+])
+
dnl This macro protects VARIABLE from being diverted twice
dnl if this macro is called twice for it.
dnl AC_SUBST(VARIABLE)
AC_DIVERT_PUSH(AC_DIVERSION_SED)dnl
s%@$1@%[$]$1%g
AC_DIVERT_POP()dnl
-])])dnl
-dnl
+])])
+
dnl AC_SUBST_FILE(VARIABLE)
AC_DEFUN(AC_SUBST_FILE,
[ifdef([AC_SUBST_$1], ,
/@$1@/r [$]$1
s%@$1@%%g
AC_DIVERT_POP()dnl
-])])dnl
-dnl
-dnl
+])])
+
+
dnl ### Printing messages
-dnl
-dnl
+
+
dnl AC_MSG_CHECKING(FEATURE-DESCRIPTION)
AC_DEFUN(AC_MSG_CHECKING,
[AC_REQUIRE([AC_PROG_ECHO_N])dnl
-echo $ac_n "checking $1""... $ac_c" 1>&AC_FD_MSG])dnl
-dnl
+echo $ac_n "checking $1""... $ac_c" 1>&AC_FD_MSG])
+
dnl AC_CHECKING(FEATURE-DESCRIPTION)
AC_DEFUN(AC_CHECKING,
-[echo "checking $1" 1>&AC_FD_MSG])dnl
-dnl
+[echo "checking $1" 1>&AC_FD_MSG])
+
dnl AC_MSG_RESULT(RESULT-DESCRIPTION)
AC_DEFUN(AC_MSG_RESULT,
[AC_REQUIRE([AC_PROG_ECHO_N])dnl
-echo "$ac_t""$1" 1>&AC_FD_MSG])dnl
-dnl
+echo "$ac_t""$1" 1>&AC_FD_MSG])
+
dnl AC_VERBOSE(RESULT-DESCRIPTION)
AC_DEFUN(AC_VERBOSE,
[AC_OBSOLETE([$0], [; instead use AC_MSG_RESULT])dnl
-echo " $1" 1>&AC_FD_MSG])dnl
-dnl
+echo " $1" 1>&AC_FD_MSG])
+
dnl AC_MSG_WARN(PROBLEM-DESCRIPTION)
AC_DEFUN(AC_MSG_WARN,
-[echo "configure: warning: $1" 1>&2])dnl
-dnl
+[echo "configure: warning: $1" 1>&2])
+
dnl AC_MSG_ERROR(ERROR-DESCRIPTION)
AC_DEFUN(AC_MSG_ERROR,
-[{ echo "configure: $1" 1>&2; exit 1; }])dnl
-dnl
-dnl
+[{ echo "configure: $1" 1>&2; exit 1; }])
+
+
dnl ### Selecting which language to use for testing
-dnl
-dnl
+
+
dnl AC_LANG_C()
AC_DEFUN(AC_LANG_C,
[define([AC_LANG], [C])dnl
# CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
ac_cpp='${CPP} $CPPFLAGS'
ac_compile='${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS conftest.${ac_ext} -o conftest $LIBS 1>&AC_FD_CC 2>&AC_FD_CC'
-])dnl
-dnl
+])
+
dnl AC_LANG_CPLUSPLUS()
AC_DEFUN(AC_LANG_CPLUSPLUS,
[define([AC_LANG], [CPLUSPLUS])dnl
# CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
ac_cpp='${CXXCPP} $CPPFLAGS'
ac_compile='${CXX-gcc} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.${ac_ext} -o conftest $LIBS 1>&AC_FD_CC 2>&AC_FD_CC'
-])dnl
-dnl
+])
+
dnl Push the current language on a stack.
-dnl
+
dnl AC_LANG_SAVE()
AC_DEFUN(AC_LANG_SAVE,
-[pushdef([AC_LANG_STACK], AC_LANG)])dnl
-dnl
+[pushdef([AC_LANG_STACK], AC_LANG)])
+
dnl Restore the current language from the stack.
dnl AC_LANG_RESTORE()
AC_DEFUN(AC_LANG_RESTORE,
-[ifelse(AC_LANG_STACK, C, [ifelse(AC_LANG, C, , [AC_LANG_C])], [ifelse(AC_LANG, CPLUSPLUS, , [AC_LANG_CPLUSPLUS])])[]popdef([AC_LANG_STACK])])dnl
-dnl
-dnl
+[ifelse(AC_LANG_STACK, C, [ifelse(AC_LANG, C, , [AC_LANG_C])], [ifelse(AC_LANG, CPLUSPLUS, , [AC_LANG_CPLUSPLUS])])[]popdef([AC_LANG_STACK])])
+
+
dnl ### Enforcing ordering constraints
-dnl
-dnl
+
+
dnl AC_BEFORE(THIS-MACRO-NAME, CALLED-MACRO-NAME)
-AC_DEFUN(AC_BEFORE,
+define(AC_BEFORE,
[ifdef([AC_PROVIDE_$2], [errprint(__file__:__line__: [$2 was called before $1
-])])])dnl
-dnl
+])])])
+
dnl AC_REQUIRE(MACRO-NAME)
-AC_DEFUN(AC_REQUIRE,
+define(AC_REQUIRE,
[ifdef([AC_PROVIDE_$1], ,
[AC_DIVERT_PUSH(builtin(eval, AC_DIVERSION_CURRENT - 1))dnl
indir([$1])
AC_DIVERT_POP()dnl
-])])dnl
-dnl
+])])
+
dnl AC_PROVIDE(MACRO-NAME)
define(AC_PROVIDE,
-[define([AC_PROVIDE_$1], )])dnl
-dnl
+[define([AC_PROVIDE_$1], )])
+
dnl AC_OBSOLETE(THIS-MACRO-NAME [, SUGGESTION])
-AC_DEFUN(AC_OBSOLETE,
+define(AC_OBSOLETE,
[errprint(__file__:__line__: warning: [$1] is obsolete[$2]
-)])dnl
-dnl
-dnl
+)])
+
+
dnl ### Checking for files (caching)
-dnl
-dnl
+
+
dnl AC_CHECK_PROG(VARIABLE, PROG-TO-CHECK-FOR, VALUE-IF-FOUND
dnl [, VALUE-IF-NOT-FOUND])
AC_DEFUN(AC_CHECK_PROG,
AC_MSG_RESULT(no)
fi
AC_SUBST($1)dnl
-])dnl
-dnl
+])
+
dnl AC_PATH_PROG(VARIABLE, PROG-TO-CHECK-FOR [, VALUE-IF-NOT-FOUND])
AC_DEFUN(AC_PATH_PROG,
[# Extract the first word of "$2", so it can be a program name with args.
AC_MSG_RESULT(no)
fi
AC_SUBST($1)dnl
-])dnl
-dnl
+])
+
dnl AC_CHECK_PROGS(VARIABLE, PROGS-TO-CHECK-FOR [, VALUE-IF-NOT-FOUND])
AC_DEFUN(AC_CHECK_PROGS,
[for ac_prog in $2
test -n "[$]$1" && break
done
ifelse([$3], , , [test -n "[$]$1" || $1="$3"
-])])dnl
-dnl
+])])
+
dnl AC_PATH_PROGS(VARIABLE, PROGS-TO-CHECK-FOR [, VALUE-IF-NOT-FOUND])
AC_DEFUN(AC_PATH_PROGS,
[for ac_prog in $2
test -n "[$]$1" && break
done
ifelse([$3], , , [test -n "[$]$1" || $1="$3"
-])])dnl
-dnl
+])])
+
dnl AC_CHECK_LIB(LIBRARY, FUNCTION, [, ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND
dnl [, OTHER-LIBRARIES]]])
AC_DEFUN(AC_CHECK_LIB,
ifelse([$4], , , [$4
])dnl
fi
-])dnl
-dnl
+])
+
dnl AC_HAVE_LIBRARY(LIBRARY, [, ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND
dnl [, OTHER-LIBRARIES]]])
AC_DEFUN(AC_HAVE_LIBRARY,
fi
undefine([AC_LIB_NAME])dnl
undefine([AC_CV_NAME])dnl
-])dnl
-dnl
-dnl
-dnl ### Checking for C features - primitive (no caching)
-dnl
-dnl
+])
+
+
+dnl ### Checking C system output (no caching)
+
+
dnl AC_EGREP_HEADER(PATTERN, HEADER-FILE, ACTION-IF-FOUND [,
dnl ACTION-IF-NOT-FOUND])
AC_DEFUN(AC_EGREP_HEADER,
-[AC_EGREP_CPP([$1], [#include <$2>], [$3], [$4])])dnl
-dnl
+[AC_EGREP_CPP([$1], [#include <$2>], [$3], [$4])])
+
dnl Because this macro is used by AC_PROG_GCC_TRADITIONAL, which must
dnl come early, it is not included in AC_BEFORE checks.
dnl AC_EGREP_CPP(PATTERN, PROGRAM, ACTION-IF-FOUND [,
#include "confdefs.h"
[$2]
EOF
-if eval "$ac_cpp conftest.${ac_ext}" 2>&AC_FD_CC |
+dnl eval is necessary to expand ac_cpp.
+dnl Ultrix and Pyramid sh refuse to redirect output of eval, so use subshell.
+if (eval "$ac_cpp conftest.${ac_ext}") 2>&AC_FD_CC |
egrep "$1" >/dev/null 2>&1; then
ifelse([$3], , :, [rm -rf conftest*
$3])
])dnl
fi
rm -f conftest*
-])dnl
-dnl
+])
+
dnl AC_COMPILE_CHECK(ECHO-TEXT, INCLUDES, FUNCTION-BODY,
dnl ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND])
AC_DEFUN(AC_COMPILE_CHECK,
ifelse([$1], , , [AC_CHECKING([for $1])
])dnl
AC_TRY_LINK([$2], [$3], [$4], [$5])dnl
-])dnl
-dnl
+])
+
dnl AC_TRY_LINK(INCLUDES, FUNCTION-BODY,
dnl ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND])
AC_DEFUN(AC_TRY_LINK,
])dnl
fi
rm -f conftest*]
-)dnl
-dnl
+)
+
dnl AC_TRY_RUN(PROGRAM, ACTION-IF-TRUE [, ACTION-IF-FALSE
dnl [, ACTION-IF-CROSS-COMPILING]])
AC_DEFUN(AC_TRY_RUN,
[AC_REQUIRE([AC_C_CROSS])dnl
if test "$cross_compiling" = yes; then
- ifelse([$4], , AC_MSG_ERROR(can not run test program while cross compiling),
- [AC_MSG_WARN(using default for cross-compiling)
-$4
-])
+ ifelse([$4], ,
+ [ifdef([AC_PROVIDE_AC_CANONICAL_SYSTEM],
+ [errprint(__file__:__line__: warning: test program without default prevents cross compiling
+)])dnl
+ AC_MSG_ERROR(can not run test program while cross compiling)],
+ [$4])
else
cat > conftest.${ac_ext} <<EOF
[#]line __oline__ "configure"
])dnl
fi
fi
-rm -fr conftest*])dnl
-dnl
+rm -fr conftest*])
+
dnl AC_TRY_CPP(INCLUDES, ACTION-IF-TRUE [, ACTION-IF-FALSE])
AC_DEFUN(AC_TRY_CPP,
[AC_REQUIRE_CPP()dnl
[$1]
EOF
dnl Capture the stderr of cpp.
-dnl Coherent sh does redirections in the wrong order, so separate them
-dnl with quotes.
-ac_err=`eval "$ac_cpp conftest.${ac_ext} >/dev/null" 2>&1`
+dnl eval is necessary to expand ac_cpp.
+dnl Ultrix and Pyramid sh refuse to redirect output of eval, so use subshell.
+dnl Coherent sh does redirections in the wrong order, so separate them.
+# Note: sh -x echos commands on subshell stderr, making this test fail.
+ac_err=`(eval "$ac_cpp conftest.${ac_ext} >/dev/null") 2>&1`
if test -z "$ac_err"; then
ifelse([$2], , :, [rm -rf conftest*
$2])
$3
])dnl
fi
-rm -f conftest*])dnl
-dnl
-dnl
-dnl ### Checking for C features - derived (caching)
-dnl
-dnl
+rm -f conftest*])
+
+
+dnl ### Checking for C features (caching)
+
+
dnl AC_CHECK_HEADER(HEADER-FILE, ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND])
AC_DEFUN(AC_CHECK_HEADER,
[dnl Do the transliteration at runtime so arg 1 can be a shell variable.
ifelse([$3], , , [$3
])dnl
fi
-])dnl
-dnl
+])
+
dnl AC_CHECK_FUNC(FUNCTION, ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND])
AC_DEFUN(AC_CHECK_FUNC,
[AC_MSG_CHECKING([for $1])
ifelse([$3], , , [$3
])dnl
fi
-])dnl
-dnl
+])
+
dnl AC_CHECK_FUNCS(FUNCTION... [, ACTION])
AC_DEFUN(AC_CHECK_FUNCS,
[for ac_func in $1
changequote([, ])dnl
AC_DEFINE_UNQUOTED(${ac_tr_func}) $2])dnl
done
-])dnl
-dnl
+])
+
dnl AC_CHECK_HEADERS(HEADER-FILE... [, ACTION])
AC_DEFUN(AC_CHECK_HEADERS,
[AC_REQUIRE_CPP()dnl Make sure the cpp check happens outside the loop.
changequote([, ])dnl
AC_DEFINE_UNQUOTED(${ac_tr_hdr}) $2])dnl
done
-])dnl
-dnl
+])
+
dnl AC_REPLACE_FUNCS(FUNCTION-NAME...)
AC_DEFUN(AC_REPLACE_FUNCS,
[for ac_func in $1
AC_CHECK_FUNC(${ac_func}, , [LIBOBJS="$LIBOBJS ${ac_func}.o"])
done
AC_SUBST(LIBOBJS)dnl
-])dnl
-dnl
+])
+
dnl AC_CHECK_SIZEOF(TYPE)
AC_DEFUN(AC_CHECK_SIZEOF,
[changequote(<<, >>)dnl
AC_DEFINE_UNQUOTED(AC_TYPE_NAME, $AC_CV_NAME)
undefine([AC_TYPE_NAME])dnl
undefine([AC_CV_NAME])dnl
-])dnl
-dnl
+])
+
dnl AC_CHECK_TYPE(TYPE, DEFAULT)
AC_DEFUN(AC_CHECK_TYPE,
[AC_MSG_CHECKING(for $1 in sys/types.h)
if test $ac_cv_type_$1 = no; then
AC_DEFINE($1, $2)
fi
-])dnl
-dnl
-dnl
+])
+
+
dnl ### The big finish
-dnl
-dnl
+
+
dnl Produce config.status, config.h, and links, and configure subdirs.
-dnl AC_OUTPUT([FILE...] [, EXTRA-CMDS])
+dnl AC_OUTPUT([FILE...] [, EXTRA-CMDS] [, INIT-CMDS])
AC_DEFUN(AC_OUTPUT,
[AC_CACHE_SAVE
AC_OUTPUT_FILES($1)
ifdef([AC_LIST_HEADER], [AC_OUTPUT_HEADER(AC_LIST_HEADER)])dnl
ifdef([AC_LIST_LINKS], [AC_OUTPUT_LINKS(AC_LIST_LINKS, AC_LIST_FILES)])dnl
+ifelse([$3], , ,
+[EOF
+cat >> ${CONFIG_STATUS} <<EOF
+$3
+EOF
+cat >> ${CONFIG_STATUS} <<\EOF])
$2
+exit 0
EOF
chmod +x ${CONFIG_STATUS}
test "$no_create" = yes || ${CONFIG_SHELL-/bin/sh} ${CONFIG_STATUS}
cd ${ac_popdir}
done
fi
-])dnl
-dnl
+])
dnl Written by David MacKenzie, with help from
dnl Franc,ois Pinard, Karl Berry, Richard Pixley, Ian Lance Taylor,
dnl Roland McGrath, and Noah Friedman.
-dnl
-dnl
+
+
dnl ### Checks for programs
-dnl
-dnl
+
+
dnl Check whether to use -n, \c, or newline-tab to separate
dnl checking messages from result messages.
dnl Idea borrowed from dist 3.0.
else
ac_n= ac_c='\c' ac_t=
fi
-])dnl
-dnl
+])
+
AC_DEFUN(AC_PROG_CC,
[AC_BEFORE([$0], [AC_PROG_CPP])dnl
AC_CHECK_PROG(CC, gcc, gcc, cc)
GCC=
test "${CFLAGS+set}" = set || CFLAGS='-g'
fi
-])dnl
-dnl
+])
+
AC_DEFUN(AC_PROG_CXX,
[AC_BEFORE([$0], [AC_PROG_CXXCPP])dnl
AC_CHECK_PROGS(CXX, $CCC c++ g++ gcc CC cxx, gcc)
GXX=
test "${CXXFLAGS+set}" = set || CXXFLAGS='-g'
fi
-])dnl
-dnl
+])
+
AC_DEFUN(AC_PROG_GCC_TRADITIONAL,
[AC_REQUIRE([AC_PROG_CC])dnl
AC_REQUIRE([AC_PROG_CPP])dnl
CC="$CC -traditional"
fi
fi
-])dnl
-dnl
+])
+
AC_DEFUN(AC_PROG_CC_C_O,
[if test "x$CC" != xcc; then
AC_MSG_CHECKING(whether $CC and cc understand -c and -o together)
AC_MSG_RESULT(no)
AC_DEFINE(NO_MINUS_C_MINUS_O)
fi
-])dnl
-dnl
+])
+
dnl Define SET_MAKE to set ${MAKE} if make doesn't.
AC_DEFUN(AC_PROG_MAKE_SET,
[AC_MSG_CHECKING(whether ${MAKE-make} sets \$MAKE)
SET_MAKE="MAKE=${MAKE-make}"
fi
AC_SUBST([SET_MAKE])dnl
-])dnl
-dnl
+])
+
AC_DEFUN(AC_PROG_RANLIB,
-[AC_CHECK_PROG(RANLIB, ranlib, ranlib, :)])dnl
-dnl
+[AC_CHECK_PROG(RANLIB, ranlib, ranlib, :)])
+
AC_DEFUN(AC_PROG_AWK,
-[AC_CHECK_PROGS(AWK, mawk gawk nawk awk, )])dnl
-dnl
+[AC_CHECK_PROGS(AWK, mawk gawk nawk awk, )])
+
AC_DEFUN(AC_PROG_YACC,
-[AC_CHECK_PROGS(YACC, 'bison -y' byacc, yacc)])dnl
-dnl
+[AC_CHECK_PROGS(YACC, 'bison -y' byacc, yacc)])
+
AC_DEFUN(AC_PROG_CPP,
[AC_MSG_CHECKING(how to run the C preprocessor)
# On Suns, sometimes $CPP names a directory.
CPP="$ac_cv_prog_CPP"
AC_MSG_RESULT($CPP)
AC_SUBST(CPP)dnl
-])dnl
-dnl
+])
+
AC_DEFUN(AC_PROG_CXXCPP,
[AC_MSG_CHECKING(how to run the C++ preprocessor)
if test -z "$CXXCPP"; then
CXXCPP="$ac_cv_prog_CXXCPP"
AC_MSG_RESULT($CXXCPP)
AC_SUBST(CXXCPP)dnl
-])dnl
-dnl
+])
+
dnl Require finding the C or C++ preprocessor, whichever is the
dnl current language.
AC_DEFUN(AC_REQUIRE_CPP,
-[ifelse(AC_LANG, C, [AC_REQUIRE([AC_PROG_CPP])], [AC_REQUIRE([AC_PROG_CXXCPP])])])dnl
-dnl
+[ifelse(AC_LANG, C, [AC_REQUIRE([AC_PROG_CPP])], [AC_REQUIRE([AC_PROG_CXXCPP])])])
+
AC_DEFUN(AC_PROG_LEX,
[AC_CHECK_PROG(LEX, flex, flex, lex)
AC_MSG_CHECKING(for $LEX library)
esac
fi
AC_MSG_RESULT($LEXLIB)
-AC_SUBST(LEXLIB)])dnl
-dnl
+AC_SUBST(LEXLIB)])
+
AC_DEFUN(AC_DECL_YYTEXT,
[AC_REQUIRE_CPP()dnl
AC_REQUIRE([AC_PROG_LEX])dnl
AC_DEFINE(YYTEXT_POINTER)
fi
AC_SUBST(LEX_OUTPUT_ROOT)dnl
-])dnl
-dnl
+])
+
AC_DEFUN(AC_PROG_INSTALL,
[AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
# Make sure to not get an incompatible install:
test -z "$INSTALL_DATA" && INSTALL_DATA='${INSTALL} -m 644'
AC_SUBST(INSTALL_DATA)dnl
-])dnl
-dnl
+])
+
AC_DEFUN(AC_PROG_LN_S,
[AC_MSG_CHECKING(whether ln -s works)
AC_CACHE_VAL(ac_cv_prog_LN_S,
AC_MSG_RESULT(no)
fi
AC_SUBST(LN_S)dnl
-])dnl
-dnl
+])
+
AC_DEFUN(AC_RSH,
[errprint(__file__:__line__: [$0] has been removed; replace it with equivalent code
-)m4exit(4)])dnl
-dnl
-dnl
+)m4exit(4)])
+
+
dnl ### Checks for header files
-dnl
-dnl
+
+
AC_DEFUN(AC_HEADER_STDC,
[AC_REQUIRE_CPP()dnl
AC_MSG_CHECKING(for ANSI C header files)
int main () { int i; for (i = 0; i < 256; i++)
if (XOR (islower (i), ISLOWER (i)) || toupper (i) != TOUPPER (i)) exit(2);
exit (0); }
-], , ac_stdc_headers=no)
+], , ac_cv_header_stdc=no, ac_cv_header_stdc=no)
fi])dnl
AC_MSG_RESULT($ac_cv_header_stdc)
if test $ac_cv_header_stdc = yes; then
AC_DEFINE(STDC_HEADERS)
fi
-])dnl
-dnl
+])
+
AC_DEFUN(AC_UNISTD_H,
[AC_OBSOLETE([$0], [; instead use AC_CHECK_HEADERS(unistd.h)])dnl
-AC_CHECK_HEADER(unistd.h, AC_DEFINE(HAVE_UNISTD_H))])dnl
-dnl
+AC_CHECK_HEADER(unistd.h, AC_DEFINE(HAVE_UNISTD_H))])
+
AC_DEFUN(AC_USG,
[AC_OBSOLETE([$0],
[; instead use AC_CHECK_HEADERS(string.h) and HAVE_STRING_H])dnl
AC_MSG_CHECKING([for BSD string and memory functions])
AC_TRY_LINK([#include <strings.h>], [rindex(0, 0); bzero(0, 0);], ,
- [AC_MSG_RESULT(yes); AC_DEFINE(USG)], [AC_MSG_RESULT(no)])])dnl
-dnl
-dnl
+ [AC_MSG_RESULT(yes); AC_DEFINE(USG)], [AC_MSG_RESULT(no)])])
+
+
dnl If memchr and the like aren't declared in <string.h>, include <memory.h>.
dnl To avoid problems, don't check for gcc2 built-ins.
AC_DEFUN(AC_MEMORY_H,
if test $ac_found = no; then
AC_CHECK_HEADER(memory.h, [AC_DEFINE(NEED_MEMORY_H)])
fi
-])dnl
-dnl
+])
+
AC_DEFUN(AC_HEADER_MAJOR,
[AC_MSG_CHECKING(whether sys/types.h defines makedev)
AC_CACHE_VAL(ac_cv_header_sys_types_h_makedev,
AC_CHECK_HEADER(sys/sysmacros.h, [AC_DEFINE(MAJOR_IN_SYSMACROS)])
fi
fi
-])dnl
-dnl
+])
+
AC_DEFUN(AC_HEADER_DIRENT,
[ac_header_dir=no
AC_CHECK_HEADERS(dirent.h sys/ndir.h sys/dir.h ndir.h,
if test $ac_cv_func_closedir_void = yes; then
AC_DEFINE(CLOSEDIR_VOID)
fi
-])dnl
-dnl
+])
+
dnl Obsolete.
AC_DEFUN(AC_DIR_HEADER,
[ac_header_dir=no
if test $ac_cv_func_closedir_void = yes; then
AC_DEFINE(VOID_CLOSEDIR)
fi
-])dnl
-dnl
+])
+
AC_DEFUN(AC_HEADER_STAT,
[AC_MSG_CHECKING(whether stat file-mode macros are broken)
AC_CACHE_VAL(ac_cv_header_stat_broken,
if test $ac_cv_header_stat_broken = yes; then
AC_DEFINE(STAT_MACROS_BROKEN)
fi
-])dnl
-dnl
+])
+
AC_DEFUN(AC_DECL_SYS_SIGLIST,
[AC_MSG_CHECKING([for sys_siglist declaration in signal.h or unistd.h])
AC_CACHE_VAL(ac_cv_decl_sys_siglist,
if test $ac_cv_decl_sys_siglist = yes; then
AC_DEFINE(SYS_SIGLIST_DECLARED)
fi
-])dnl
-dnl
-dnl
+])
+
+
dnl ### Checks for typedefs
-dnl
-dnl
+
+
AC_DEFUN(AC_TYPE_GETGROUPS,
[AC_REQUIRE([AC_TYPE_UID_T])dnl
AC_MSG_CHECKING(type of array argument to getgroups)
ac_cv_type_getgroups=gid_t, ac_cv_type_getgroups=int)])dnl
AC_MSG_RESULT($ac_cv_type_getgroups)
AC_DEFINE_UNQUOTED(GETGROUPS_T, $ac_cv_type_getgroups)
-])dnl
-dnl
+])
+
AC_DEFUN(AC_TYPE_UID_T,
[AC_MSG_CHECKING(for uid_t in sys/types.h)
AC_CACHE_VAL(ac_cv_type_uid_t,
AC_DEFINE(uid_t, int)
AC_DEFINE(gid_t, int)
fi
-])dnl
-dnl
+])
+
AC_DEFUN(AC_TYPE_SIZE_T,
-[AC_CHECK_TYPE(size_t, unsigned)])dnl
-dnl
+[AC_CHECK_TYPE(size_t, unsigned)])
+
AC_DEFUN(AC_TYPE_PID_T,
-[AC_CHECK_TYPE(pid_t, int)])dnl
-dnl
+[AC_CHECK_TYPE(pid_t, int)])
+
AC_DEFUN(AC_TYPE_OFF_T,
-[AC_CHECK_TYPE(off_t, long)])dnl
-dnl
+[AC_CHECK_TYPE(off_t, long)])
+
AC_DEFUN(AC_TYPE_MODE_T,
-[AC_CHECK_TYPE(mode_t, int)])dnl
-dnl
+[AC_CHECK_TYPE(mode_t, int)])
+
dnl Note that identifiers starting with SIG are reserved by ANSI C.
AC_DEFUN(AC_TYPE_SIGNAL,
[AC_MSG_CHECKING([return type of signal handlers])
[int i;], ac_cv_type_signal=void, ac_cv_type_signal=int)])dnl
AC_MSG_RESULT($ac_cv_type_signal)
AC_DEFINE_UNQUOTED(RETSIGTYPE, $ac_cv_type_signal)
-])dnl
-dnl
-dnl
+])
+
+
dnl ### Checks for functions
-dnl
-dnl
+
+
AC_DEFUN(AC_FUNC_MMAP,
[AC_MSG_CHECKING(for working mmap)
AC_CACHE_VAL(ac_cv_func_mmap,
if test $ac_cv_func_mmap = yes; then
AC_DEFINE(HAVE_MMAP)
fi
-])dnl
-dnl
+])
+
AC_DEFUN(AC_FUNC_VPRINTF,
[AC_CHECK_FUNC(vprintf, AC_DEFINE(HAVE_VPRINTF))
if test "$ac_cv_func_vprintf" != yes; then
AC_CHECK_FUNC(_doprnt, AC_DEFINE(HAVE_DOPRNT))
fi
-])dnl
-dnl
+])
+
AC_DEFUN(AC_FUNC_VFORK,
[AC_REQUIRE([AC_TYPE_PID_T])dnl
AC_CHECK_HEADER(vfork.h, AC_DEFINE(HAVE_VFORK_H))
if test $ac_cv_func_vfork = no; then
AC_DEFINE(vfork, fork)
fi
-])dnl
-dnl
+])
+
AC_DEFUN(AC_FUNC_WAIT3,
[AC_MSG_CHECKING(for wait3 that fills in rusage)
AC_CACHE_VAL(ac_cv_func_wait3,
if test $ac_cv_func_wait3 = yes; then
AC_DEFINE(HAVE_WAIT3)
fi
-])dnl
-dnl
+])
+
AC_DEFUN(AC_FUNC_ALLOCA,
[AC_REQUIRE_CPP()dnl Set CPP; we run AC_EGREP_CPP conditionally.
# The Ultrix 4.2 mips builtin alloca declared by alloca.h only works
AC_DEFINE_UNQUOTED(STACK_DIRECTION, $ac_cv_c_stack_direction)
fi
AC_SUBST(ALLOCA)dnl
-])dnl
-dnl
+])
+
AC_DEFUN(AC_FUNC_GETLOADAVG,
[# Some definitions of getloadavg require that the program be installed setgid.
NEED_SETGID=false
AC_MSG_RESULT($KMEM_GROUP)
fi
AC_SUBST(KMEM_GROUP)dnl
-])dnl
-dnl
+])
+
AC_DEFUN(AC_FUNC_UTIME_NULL,
[AC_MSG_CHECKING(whether utime accepts a null argument)
AC_CACHE_VAL(ac_cv_func_utime_null,
if test $ac_cv_func_utime_null = yes; then
AC_DEFINE(HAVE_UTIME_NULL)
fi
-])dnl
-dnl
+])
+
AC_DEFUN(AC_FUNC_STRCOLL,
[AC_MSG_CHECKING(for strcoll)
AC_CACHE_VAL(ac_cv_func_strcoll,
if test $ac_cv_func_strcoll = yes; then
AC_DEFINE(HAVE_STRCOLL)
fi
-])dnl
-dnl
+])
+
AC_DEFUN(AC_FUNC_SETVBUF_REVERSED,
[AC_MSG_CHECKING(whether setvbuf arguments are reversed)
AC_CACHE_VAL(ac_cv_func_setvbuf_reversed,
if test $ac_cv_func_setvbuf_reversed = yes; then
AC_DEFINE(SETVBUF_REVERSED)
fi
-])dnl
-dnl
-dnl
+])
+
+
dnl ### Checks for structure members
-dnl
-dnl
+
+
AC_DEFUN(AC_HEADER_TIME,
[AC_MSG_CHECKING([whether time.h and sys/time.h may both be included])
AC_CACHE_VAL(ac_cv_header_time,
if test $ac_cv_header_time = yes; then
AC_DEFINE(TIME_WITH_SYS_TIME)
fi
-])dnl
-dnl
+])
+
AC_DEFUN(AC_STRUCT_TM,
[AC_MSG_CHECKING([whether struct tm is in sys/time.h or time.h])
AC_CACHE_VAL(ac_cv_struct_tm,
if test $ac_cv_struct_tm = sys/time.h; then
AC_DEFINE(TM_IN_SYS_TIME)
fi
-])dnl
-dnl
+])
+
AC_DEFUN(AC_STRUCT_TIMEZONE,
[AC_REQUIRE([AC_STRUCT_TM])dnl
AC_MSG_CHECKING([for tm_zone in struct tm])
AC_DEFINE(HAVE_TZNAME)
fi
fi
-])dnl
-dnl
+])
+
AC_DEFUN(AC_STRUCT_ST_BLOCKS,
[AC_MSG_CHECKING([for st_blocks in struct stat])
AC_CACHE_VAL(ac_cv_struct_st_blocks,
LIBOBJS="$LIBOBJS fileblocks.o"
fi
AC_SUBST(LIBOBJS)dnl
-])dnl
-dnl
+])
+
AC_DEFUN(AC_STRUCT_ST_BLKSIZE,
[AC_MSG_CHECKING([for st_blksize in struct stat])
AC_CACHE_VAL(ac_cv_struct_st_blksize,
if test $ac_cv_struct_st_blksize = yes; then
AC_DEFINE(HAVE_ST_BLKSIZE)
fi
-])dnl
-dnl
+])
+
AC_DEFUN(AC_STRUCT_ST_RDEV,
[AC_MSG_CHECKING([for st_rdev in struct stat])
AC_CACHE_VAL(ac_cv_struct_st_rdev,
if test $ac_cv_struct_st_rdev = yes; then
AC_DEFINE(HAVE_ST_RDEV)
fi
-])dnl
-dnl
-dnl
+])
+
+
dnl ### Checks for compiler characteristics
-dnl
-dnl
+
+
AC_DEFUN(AC_C_CROSS,
[# If we cannot run a trivial program, we must be cross compiling.
AC_MSG_CHECKING(whether cross-compiling)
[AC_TRY_RUN([main(){exit(0);}], ac_cv_c_cross=no, ac_cv_c_cross=yes)])dnl
cross_compiling=$ac_cv_c_cross
AC_MSG_RESULT($ac_cv_c_cross)
-])dnl
-dnl
+])
+
AC_DEFUN(AC_C_CHAR_UNSIGNED,
[AC_MSG_CHECKING(whether char is unsigned)
AC_CACHE_VAL(ac_cv_c_char_unsigned,
# gcc predefines this symbol on systems where it applies.
AC_DEFINE(__CHAR_UNSIGNED__)
fi
-])dnl
-dnl
+])
+
AC_DEFUN(AC_C_LONG_DOUBLE,
[AC_MSG_CHECKING(for long double)
AC_CACHE_VAL(ac_cv_c_long_double,
if test $ac_cv_c_long_double = yes; then
AC_DEFINE(HAVE_LONG_DOUBLE)
fi
-])dnl
-dnl
+])
+
AC_DEFUN(AC_INT_16_BITS,
[AC_OBSOLETE([$0], [; instead use AC_CHECK_SIZEOF(int)])
AC_MSG_CHECKING(whether int is 16 bits)
AC_TRY_RUN([main() { exit(sizeof(int) != 2); }],
[AC_MSG_RESULT(yes)
AC_DEFINE(INT_16_BITS)], AC_MSG_RESULT(no))
-])dnl
-dnl
+])
+
AC_DEFUN(AC_LONG_64_BITS,
[AC_OBSOLETE([$0], [; instead use AC_CHECK_SIZEOF(long)])
AC_MSG_CHECKING(whether long int is 64 bits)
AC_TRY_RUN([main() { exit(sizeof(long int) != 8); }],
[AC_MSG_RESULT(yes)
AC_DEFINE(LONG_64_BITS)], AC_MSG_RESULT(no))
-])dnl
-dnl
+])
+
AC_DEFUN(AC_C_BIGENDIAN,
[AC_MSG_CHECKING(whether byte ordering is bigendian)
AC_CACHE_VAL(ac_cv_c_bigendian,
if test $ac_cv_c_bigendian = yes; then
AC_DEFINE(WORDS_BIGENDIAN)
fi
-])dnl
-dnl
+])
+
AC_DEFUN(AC_C_INLINE,
[AC_MSG_CHECKING([for inline])
AC_CACHE_VAL(ac_cv_c_inline,
if test $ac_cv_c_inline = no; then
AC_DEFINE(inline, __inline)
fi
-])dnl
+])
+
AC_DEFUN(AC_C_CONST,
[dnl This message is consistent in form with the other checking messages,
dnl and with the result message.
if test $ac_cv_c_const = no; then
AC_DEFINE(const, )
fi
-])dnl
-dnl
+])
+
AC_DEFUN(AC_ARG_ARRAY,
[errprint(__file__:__line__: [$0] has been removed; don't do unportable things with arguments
-)m4exit(4)])dnl
-dnl
-dnl
+)m4exit(4)])
+
+
dnl ### Checks for operating system services
-dnl
-dnl
+
+
AC_DEFUN(AC_SYS_INTERPRETER,
[# Pull the hash mark out of the macro call to avoid m4 problems.
ac_msg="whether #! works in shell scripts"
fi
rm -f conftest])dnl
AC_MSG_RESULT($ac_cv_sys_interpreter)
-])dnl
-dnl
+])
+
AC_DEFUN(AC_HAVE_POUNDBANG,
[errprint(__file__:__line__: [$0 has been replaced by AC_SYS_INTERPRETER, taking no arguments
-])m4exit(4)])dnl
-dnl
+])m4exit(4)])
+
AC_DEFUN(AC_SYS_LONG_FILE_NAMES,
[AC_MSG_CHECKING(for long file names)
AC_CACHE_VAL(ac_cv_sys_long_file_names,
if test $ac_cv_sys_long_file_names = yes; then
AC_DEFINE(HAVE_LONG_FILE_NAMES)
fi
-])dnl
-dnl
+])
+
AC_DEFUN(AC_SYS_RESTARTABLE_SYSCALLS,
[AC_MSG_CHECKING(for restartable system calls)
AC_CACHE_VAL(ac_cv_sys_restartable_syscalls,
if test $ac_cv_sys_restartable_syscalls = yes; then
AC_DEFINE(HAVE_RESTARTABLE_SYSCALLS)
fi
-])dnl
-dnl
+])
+
AC_DEFUN(AC_PATH_X,
[AC_REQUIRE_CPP()dnl Set CPP; we run AC_PATH_X_DIRECT conditionally.
# If we find X, set shell vars x_includes and x_libraries to the
ac_cv_path_x="no_x= ac_x_includes=$x_includes ac_x_libraries=$x_libraries"
AC_MSG_RESULT([libraries $x_libraries, headers $x_includes])
fi
-])dnl
-dnl
+])
+
dnl Internal subroutine of AC_PATH_X.
dnl Set ac_x_includes, ac_x_libraries, and no_x (initially yes).
AC_DEFUN(AC_PATH_X_XMKMF,
cd ..
rm -fr conftestdir
fi
-])dnl
-dnl
+])
+
dnl Internal subroutine of AC_PATH_X.
dnl Set ac_x_includes, ac_x_libraries, and no_x (initially yes).
AC_DEFUN(AC_PATH_X_DIRECT,
[test -z "$x_direct_test_library" && x_direct_test_library=Xt
+test -z "$x_direct_test_function" && x_direct_test_function=XtMalloc
test -z "$x_direct_test_include" && x_direct_test_include=X11/Intrinsic.h
-AC_TRY_CPP([#include <$x_direct_test_include>], [no_x= ac_x_includes=],
+AC_TRY_CPP([#include <$x_direct_test_include>],
+[no_x= ac_x_includes=],
[ for ac_dir in \
/usr/X11R6/include \
/usr/X11R5/include \
fi
done])
-# Check for the libraries. First see if replacing the include by
-# lib works.
-AC_CHECK_LIB("$x_direct_test_library", main, [no_x= ac_x_libraries=],
-[for ac_dir in `echo "$ac_x_includes" | sed s/include/lib/` \
+# Check for the libraries.
+# See if we find them without any special options.
+# Don't add to $LIBS permanently.
+ac_save_LIBS="${LIBS}"
+LIBS="${LIBS} -l$x_direct_test_library"
+AC_TRY_LINK(, [${x_direct_test_function}()],
+[LIBS="${ac_save_LIBS}" no_x= ac_x_libraries=],
+[LIBS="${ac_save_LIBS}"
+# First see if replacing the include by lib works.
+for ac_dir in `echo "$ac_x_includes" | sed s/include/lib/` \
/usr/X11R6/lib \
/usr/X11R5/lib \
/usr/X11R4/lib \
break 2
fi
done
-done])])dnl
-dnl
+done])])
+
dnl Find additional X libraries, magic flags, etc.
AC_DEFUN(AC_PATH_XTRA,
[AC_REQUIRE([AC_OS_ISC])dnl
AC_REQUIRE([AC_PATH_X])dnl
-AC_CHECKING(for additional X libraries and flags)
if test "$no_x" = yes; then
# Not all programs may use this symbol, but it does not hurt to define it.
X_CFLAGS="$X_CFLAGS -DX_DISPLAY_MISSING"
# Martyn.Johnson@cl.cam.ac.uk says this is needed for Ultrix, if the X
# libraries were built with DECnet support. And karl@cs.umb.edu says
# the Alpha needs dnet_stub (dnet does not exist).
- AC_CHECK_LIB(dnet, dnet_ntoa,
- [X_EXTRA_LIBS="$X_EXTRA_LIBS -ldnet" ac_have_dnet=yes], ac_have_dnet=no)
- if test "$ac_have_dnet" = no; then
+ AC_CHECK_LIB(dnet, dnet_ntoa, [X_EXTRA_LIBS="$X_EXTRA_LIBS -ldnet"])
+ if test $ac_cv_lib_dnet = no; then
AC_CHECK_LIB(dnet_stub, dnet_ntoa,
[X_EXTRA_LIBS="$X_EXTRA_LIBS -ldnet_stub"])
fi
AC_SUBST(X_CFLAGS)dnl
AC_SUBST(X_LIBS)dnl
AC_SUBST(X_EXTRA_LIBS)dnl
-])dnl
-dnl
-dnl
+])
+
+
dnl ### Checks for UNIX variants
dnl These are kludges; we need a more systematic approach.
-dnl
-dnl
+
+
AC_DEFUN(AC_OS_AIX,
[AC_BEFORE([$0], [AC_TRY_LINK])dnl
AC_BEFORE([$0], [AC_TRY_RUN])dnl
yes
#endif
], [AC_MSG_RESULT(yes); AC_DEFINE(_ALL_SOURCE)], AC_MSG_RESULT(no))
-])dnl
-dnl
+])
+
AC_DEFUN(AC_OS_MINIX,
[AC_BEFORE([$0], [AC_TRY_LINK])dnl
AC_BEFORE([$0], [AC_TRY_RUN])dnl
AC_DEFINE(_POSIX_1_SOURCE, 2)
AC_DEFINE(_MINIX)
fi
-])dnl
-dnl
+])
+
AC_DEFUN(AC_OS_ISC,
[AC_BEFORE([$0], [AC_TRY_LINK])dnl
AC_BEFORE([$0], [AC_TRY_RUN])dnl
AC_MSG_RESULT(no)
ISC=
fi
-])dnl
-dnl
+])
+
AC_DEFUN(AC_OS_XENIX,
[AC_REQUIRE([AC_DIR_HEADER])dnl
AC_MSG_CHECKING(for Xenix)
LIBS="-ldir $LIBS" # Make sure -ldir precedes -lx.
fi
fi
-])dnl
-dnl
+])
+
AC_DEFUN(AC_OS_SCO,
[AC_CHECK_LIB(intl, strftime, LIBS="$LIBS -lintl")
-])dnl
-dnl
+])
+
AC_DEFUN(AC_OS_IRIX,
[AC_CHECK_LIB(sun, getmntent, LIBS="$LIBS -lsun")
-])dnl
-dnl
+])
+
AC_DEFUN(AC_OS_DYNIX,
[AC_CHECK_LIB(seq, getmntent, LIBS="$LIBS -lseq")
-])dnl
+])
projects / thirdparty / autoconf.git / commitdiff
