undefine([format])
-dnl ### Controlling Autoconf operation
+dnl ### Defining macros
dnl m4 output diversions. We let m4 output them all in order at the end,
dnl stack if it is not already using it. In this case, once finished,
dnl it will bring back all the code accumulated in the diversion stack.
dnl This, combined with AC_REQUIRE, achieves the topological ordering of
-dnl macros.
+dnl macros. We don't use this macro to define some frequently called
+dnl macros that are not involved in ordering constraints, to save m4
+dnl processing.
dnl AC_DEFUN(NAME, EXPANSION)
define([AC_DEFUN],
[define($1, [AC_PRO([$1])$2[]AC_EPI()])])
+
+dnl ### Controlling Autoconf operation
+
+
dnl AC_INIT_NOTICE()
AC_DEFUN(AC_INIT_NOTICE,
[# Guess values for system-dependent variables and create Makefiles.
*) ac_optarg= ;;
esac
- # Accept (but ignore some of) the important Cygnus configure
- # options, so we can diagnose typos.
+ # Accept the important Cygnus configure options, so we can diagnose typos.
case "$ac_option" in
AC_SITE_LOAD
AC_CACHE_LOAD
AC_LANG_C
+AC_PROG_ECHO_N
dnl Substitute for predefined variables.
-AC_SUBST(LIBS)dnl
-AC_SUBST(prefix)dnl
-AC_SUBST(exec_prefix)dnl
-AC_SUBST(DEFS)dnl
AC_SUBST(CFLAGS)dnl
-AC_SUBST(CXXFLAGS)dnl
AC_SUBST(CPPFLAGS)dnl
+AC_SUBST(CXXFLAGS)dnl
+AC_SUBST(DEFS)dnl
AC_SUBST(LDFLAGS)dnl
+AC_SUBST(LIBS)dnl
+AC_SUBST(exec_prefix)dnl
+AC_SUBST(prefix)dnl
])
+
+dnl ### Selecting optional features
+
+
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
AC_ARG_WITH([$1], [ --with-$1], [$2], [$3])dnl
])
-dnl AC_CONFIG_HEADER(HEADER-TO-CREATE ...)
-AC_DEFUN(AC_CONFIG_HEADER,
-[define(AC_LIST_HEADER, $1)])
+
+dnl ### Version numbers
+
dnl AC_REVISION(REVISION-INFO)
AC_DEFUN(AC_REVISION,
dnl Change the dots in NUMBER into commas.
dnl AC_PREREQ_SPLIT(NUMBER)
-AC_DEFUN(AC_PREREQ_SPLIT,
+define(AC_PREREQ_SPLIT,
[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,
+define(AC_PREREQ_CANON,
[$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,
dnl PRINTABLE2)
-AC_DEFUN(AC_PREREQ_COMPARE,
+define(AC_PREREQ_COMPARE,
[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
dnl Complain and exit if the Autoconf version is less than VERSION.
dnl AC_PREREQ(VERSION)
-AC_DEFUN(AC_PREREQ,
+define(AC_PREREQ,
[AC_PREREQ_COMPARE(AC_PREREQ_CANON(AC_PREREQ_SPLIT(AC_ACVERSION)),
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 ...)
-AC_DEFUN(AC_CONFIG_SUBDIRS,
-[AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
-define([AC_LIST_SUBDIRS], [$1])dnl
-subdirs="AC_LIST_SUBDIRS"
-AC_SUBST(subdirs)dnl
-])
-
-dnl Guess the value for the `prefix' variable by looking for
-dnl the argument program along PATH and taking its parent.
-dnl Example: if the argument is `gcc' and we find /usr/local/gnu/bin/gcc,
-dnl set `prefix' to /usr/local/gnu.
-dnl This comes too late to find a site file based on the prefix,
-dnl and it might use a cached value for the path.
-dnl No big loss, I think, since most configures don't use this macro anyway.
-dnl AC_PREFIX_PROGRAM(PROGRAM)
-AC_DEFUN(AC_PREFIX_PROGRAM,
-[if test "x$prefix" = xNONE; then
-changequote(<<, >>)dnl
-define(<<AC_VAR_NAME>>, translit($1, [a-z], [A-Z]))dnl
-changequote([, ])dnl
-AC_PATH_PROG(AC_VAR_NAME, $1)
-changequote(<<, >>)dnl
- if test -n "$ac_cv_path_<<>>AC_VAR_NAME"; then
- prefix=`echo $ac_cv_path_<<>>AC_VAR_NAME|sed 's%/[^/][^/]*/[^/][^/]*$%%'`
-changequote([, ])dnl
- fi
-fi
-undefine([AC_VAR_NAME])dnl
-])
-
dnl ### Canonicalizing the system type
dnl Look for site or system specific initialization scripts.
dnl AC_SITE_LOAD()
-AC_DEFUN(AC_SITE_LOAD,
+define(AC_SITE_LOAD,
[# Prefer explicitly selected file to automatically selected ones.
if test ! -r "$CONFIG_SITE"; then
if test "x$prefix" != xNONE; then
])
dnl AC_CACHE_LOAD()
-AC_DEFUN(AC_CACHE_LOAD,
+define(AC_CACHE_LOAD,
[if test -r "$cache_file"; then
echo "loading cache $cache_file"
. $cache_file
])
dnl AC_CACHE_SAVE()
-AC_DEFUN(AC_CACHE_SAVE,
+define(AC_CACHE_SAVE,
[if test -w $cache_file; then
echo "updating cache $cache_file"
cat > $cache_file <<\EOF
dnl The name of shell var CACHE-ID must contain `_cv_' in order to get saved.
dnl AC_CACHE_VAL(CACHE-ID, COMMANDS-TO-SET-IT)
-AC_DEFUN(AC_CACHE_VAL,
-[AC_REQUIRE([AC_PROG_ECHO_N])dnl
-dnl We used to use the below line, but it fails if the 1st arg is a
+define(AC_CACHE_VAL,
+[dnl We used to use the below line, but it fails if the 1st arg is a
dnl shell variable, so we need the eval.
dnl if test "${$1+set}" = set; then
if eval "test \"`echo '${'$1'+set}'`\" = set"; then
dnl Set VARIABLE to VALUE, verbatim, or 1.
dnl AC_DEFINE(VARIABLE [, VALUE])
-AC_DEFUN(AC_DEFINE,
+define(AC_DEFINE,
[cat >> confdefs.h <<\EOF
[#define] $1 ifelse($#, 2, [$2], 1)
EOF
])
dnl Similar, but perform shell substitutions $ ` \ once on VALUE.
-AC_DEFUN(AC_DEFINE_UNQUOTED,
+define(AC_DEFINE_UNQUOTED,
[cat >> confdefs.h <<EOF
[#define] $1 ifelse($#, 2, [$2], 1)
EOF
dnl This macro protects VARIABLE from being diverted twice
dnl if this macro is called twice for it.
dnl AC_SUBST(VARIABLE)
-AC_DEFUN(AC_SUBST,
+define(AC_SUBST,
[ifdef([AC_SUBST_$1], ,
[define([AC_SUBST_$1], )dnl
AC_DIVERT_PUSH(AC_DIVERSION_SED)dnl
])])
dnl AC_SUBST_FILE(VARIABLE)
-AC_DEFUN(AC_SUBST_FILE,
+define(AC_SUBST_FILE,
[ifdef([AC_SUBST_$1], ,
[define([AC_SUBST_$1], )dnl
AC_DIVERT_PUSH(AC_DIVERSION_SED)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])
+define(AC_MSG_CHECKING,
+[echo $ac_n "checking $1""... $ac_c" 1>&AC_FD_MSG])
dnl AC_CHECKING(FEATURE-DESCRIPTION)
-AC_DEFUN(AC_CHECKING,
+define(AC_CHECKING,
[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""$1" 1>&AC_FD_MSG])
+define(AC_MSG_RESULT,
+[echo "$ac_t""$1" 1>&AC_FD_MSG])
dnl AC_VERBOSE(RESULT-DESCRIPTION)
-AC_DEFUN(AC_VERBOSE,
+define(AC_VERBOSE,
[AC_OBSOLETE([$0], [; instead use AC_MSG_RESULT])dnl
echo " $1" 1>&AC_FD_MSG])
dnl AC_MSG_WARN(PROBLEM-DESCRIPTION)
-AC_DEFUN(AC_MSG_WARN,
+define(AC_MSG_WARN,
[echo "configure: warning: $1" 1>&2])
dnl AC_MSG_ERROR(ERROR-DESCRIPTION)
-AC_DEFUN(AC_MSG_ERROR,
+define(AC_MSG_ERROR,
[{ echo "configure: $1" 1>&2; exit 1; }])
])
dnl Push the current language on a stack.
-
dnl AC_LANG_SAVE()
-AC_DEFUN(AC_LANG_SAVE,
+define(AC_LANG_SAVE,
[pushdef([AC_LANG_STACK], AC_LANG)])
dnl Restore the current language from the stack.
dnl AC_LANG_RESTORE()
-AC_DEFUN(AC_LANG_RESTORE,
+define(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])])
ifelse([$3], , , [test -n "[$]$1" || $1="$3"
])])
+dnl Guess the value for the `prefix' variable by looking for
+dnl the argument program along PATH and taking its parent.
+dnl Example: if the argument is `gcc' and we find /usr/local/gnu/bin/gcc,
+dnl set `prefix' to /usr/local/gnu.
+dnl This comes too late to find a site file based on the prefix,
+dnl and it might use a cached value for the path.
+dnl No big loss, I think, since most configures don't use this macro anyway.
+dnl AC_PREFIX_PROGRAM(PROGRAM)
+AC_DEFUN(AC_PREFIX_PROGRAM,
+[if test "x$prefix" = xNONE; then
+changequote(<<, >>)dnl
+define(<<AC_VAR_NAME>>, translit($1, [a-z], [A-Z]))dnl
+changequote([, ])dnl
+AC_PATH_PROG(AC_VAR_NAME, $1)
+changequote(<<, >>)dnl
+ if test -n "$ac_cv_path_<<>>AC_VAR_NAME"; then
+ prefix=`echo $ac_cv_path_<<>>AC_VAR_NAME|sed 's%/[^/][^/]*/[^/][^/]*$%%'`
+changequote([, ])dnl
+ fi
+fi
+undefine([AC_VAR_NAME])dnl
+])
+
dnl AC_CHECK_LIB(LIBRARY, FUNCTION, [, ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND
dnl [, OTHER-LIBRARIES]]])
AC_DEFUN(AC_CHECK_LIB,
])
-dnl ### The big finish
+dnl ### Controlling Autoconf output
+
+dnl AC_CONFIG_HEADER(HEADER-TO-CREATE ...)
+AC_DEFUN(AC_CONFIG_HEADER,
+[define(AC_LIST_HEADER, $1)])
+
+dnl AC_CONFIG_SUBDIRS(DIR ...)
+AC_DEFUN(AC_CONFIG_SUBDIRS,
+[AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
+define([AC_LIST_SUBDIRS], [$1])dnl
+subdirs="AC_LIST_SUBDIRS"
+AC_SUBST(subdirs)dnl
+])
+dnl The big finish.
dnl Produce config.status, config.h, and links, and configure subdirs.
dnl AC_OUTPUT([FILE...] [, EXTRA-CMDS] [, INIT-CMDS])
-AC_DEFUN(AC_OUTPUT,
+define(AC_OUTPUT,
[AC_CACHE_SAVE
test "x$prefix" = xNONE && prefix=/usr/local
dnl This is a subroutine of AC_OUTPUT.
dnl It is called inside configure, outside of config.status.
dnl AC_OUTPUT_MAKE_DEFS()
-AC_DEFUN(AC_OUTPUT_MAKE_DEFS,
+define(AC_OUTPUT_MAKE_DEFS,
[# Transform confdefs.h into DEFS.
dnl Using a here document instead of a string reduces the quoting nightmare.
cat > conftest.defs <<\EOF
dnl This is a subroutine of AC_OUTPUT. It is called inside an unquoted
dnl here document whose contents are going into config.status.
dnl AC_OUTPUT_FILES(FILE...)
-AC_DEFUN(AC_OUTPUT_FILES,
+define(AC_OUTPUT_FILES,
[# Protect against being on the right side of a sed subst in config.status.
changequote(, )dnl
sed 's/%@/@@/; s/@%/@@/; s/%g$/@g/; /@g$/s/[\\\\&%]/\\\\&/g;
dnl This is a subroutine of AC_OUTPUT. It is called inside a quoted
dnl here document whose contents are going into config.status.
dnl AC_OUTPUT_HEADER(HEADER-FILE...)
-AC_DEFUN(AC_OUTPUT_HEADER,
+define(AC_OUTPUT_HEADER,
[changequote(<<, >>)dnl
# These sed commands are passed to sed as "A NAME B NAME C VALUE D", where
# NAME is the cpp macro being defined and VALUE is the value it is being given.
dnl This is a subroutine of AC_OUTPUT. It is called inside a quoted
dnl here document whose contents are going into config.status.
dnl AC_OUTPUT_LINKS(DEST..., SOURCE...)
-AC_DEFUN(AC_OUTPUT_LINKS,
+define(AC_OUTPUT_LINKS,
[EOF
cat >> ${CONFIG_STATUS} <<EOF
])
dnl AC_OUTPUT_SUBDIRS(DIRECTORY...)
-AC_DEFUN(AC_OUTPUT_SUBDIRS,
+define(AC_OUTPUT_SUBDIRS,
[
if test "${no_recursion}" != yes; then
AC_DEFUN(AC_FUNC_MMAP,
[AC_MSG_CHECKING(for working mmap)
AC_CACHE_VAL(ac_cv_func_mmap,
-[AC_TRY_RUN([/* Thanks to Mike Haertel and Jim Avera for this test. */
+[AC_TRY_RUN([
+/* Thanks to Mike Haertel and Jim Avera for this test. */
#include <sys/types.h>
#include <fcntl.h>
#include <sys/mman.h>
exit(1);
lseek(fd, (long)i, 0);
read(fd, buf2, i); /* read into mapped memory -- file should not change */
- /* (it does in i386 SVR4.0 - Jim Avera) */
+ /* (it does in i386 SVR4.0 - Jim Avera, jima@netcom.com) */
lseek(fd, (long)0, 0);
read(fd, buf3, i2);
for (j = 0; j < i2; ++j)
undefine([format])
-dnl ### Controlling Autoconf operation
+dnl ### Defining macros
dnl m4 output diversions. We let m4 output them all in order at the end,
dnl stack if it is not already using it. In this case, once finished,
dnl it will bring back all the code accumulated in the diversion stack.
dnl This, combined with AC_REQUIRE, achieves the topological ordering of
-dnl macros.
+dnl macros. We don't use this macro to define some frequently called
+dnl macros that are not involved in ordering constraints, to save m4
+dnl processing.
dnl AC_DEFUN(NAME, EXPANSION)
define([AC_DEFUN],
[define($1, [AC_PRO([$1])$2[]AC_EPI()])])
+
+dnl ### Controlling Autoconf operation
+
+
dnl AC_INIT_NOTICE()
AC_DEFUN(AC_INIT_NOTICE,
[# Guess values for system-dependent variables and create Makefiles.
*) ac_optarg= ;;
esac
- # Accept (but ignore some of) the important Cygnus configure
- # options, so we can diagnose typos.
+ # Accept the important Cygnus configure options, so we can diagnose typos.
case "$ac_option" in
AC_SITE_LOAD
AC_CACHE_LOAD
AC_LANG_C
+AC_PROG_ECHO_N
dnl Substitute for predefined variables.
-AC_SUBST(LIBS)dnl
-AC_SUBST(prefix)dnl
-AC_SUBST(exec_prefix)dnl
-AC_SUBST(DEFS)dnl
AC_SUBST(CFLAGS)dnl
-AC_SUBST(CXXFLAGS)dnl
AC_SUBST(CPPFLAGS)dnl
+AC_SUBST(CXXFLAGS)dnl
+AC_SUBST(DEFS)dnl
AC_SUBST(LDFLAGS)dnl
+AC_SUBST(LIBS)dnl
+AC_SUBST(exec_prefix)dnl
+AC_SUBST(prefix)dnl
])
+
+dnl ### Selecting optional features
+
+
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
AC_ARG_WITH([$1], [ --with-$1], [$2], [$3])dnl
])
-dnl AC_CONFIG_HEADER(HEADER-TO-CREATE ...)
-AC_DEFUN(AC_CONFIG_HEADER,
-[define(AC_LIST_HEADER, $1)])
+
+dnl ### Version numbers
+
dnl AC_REVISION(REVISION-INFO)
AC_DEFUN(AC_REVISION,
dnl Change the dots in NUMBER into commas.
dnl AC_PREREQ_SPLIT(NUMBER)
-AC_DEFUN(AC_PREREQ_SPLIT,
+define(AC_PREREQ_SPLIT,
[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,
+define(AC_PREREQ_CANON,
[$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,
dnl PRINTABLE2)
-AC_DEFUN(AC_PREREQ_COMPARE,
+define(AC_PREREQ_COMPARE,
[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
dnl Complain and exit if the Autoconf version is less than VERSION.
dnl AC_PREREQ(VERSION)
-AC_DEFUN(AC_PREREQ,
+define(AC_PREREQ,
[AC_PREREQ_COMPARE(AC_PREREQ_CANON(AC_PREREQ_SPLIT(AC_ACVERSION)),
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 ...)
-AC_DEFUN(AC_CONFIG_SUBDIRS,
-[AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
-define([AC_LIST_SUBDIRS], [$1])dnl
-subdirs="AC_LIST_SUBDIRS"
-AC_SUBST(subdirs)dnl
-])
-
-dnl Guess the value for the `prefix' variable by looking for
-dnl the argument program along PATH and taking its parent.
-dnl Example: if the argument is `gcc' and we find /usr/local/gnu/bin/gcc,
-dnl set `prefix' to /usr/local/gnu.
-dnl This comes too late to find a site file based on the prefix,
-dnl and it might use a cached value for the path.
-dnl No big loss, I think, since most configures don't use this macro anyway.
-dnl AC_PREFIX_PROGRAM(PROGRAM)
-AC_DEFUN(AC_PREFIX_PROGRAM,
-[if test "x$prefix" = xNONE; then
-changequote(<<, >>)dnl
-define(<<AC_VAR_NAME>>, translit($1, [a-z], [A-Z]))dnl
-changequote([, ])dnl
-AC_PATH_PROG(AC_VAR_NAME, $1)
-changequote(<<, >>)dnl
- if test -n "$ac_cv_path_<<>>AC_VAR_NAME"; then
- prefix=`echo $ac_cv_path_<<>>AC_VAR_NAME|sed 's%/[^/][^/]*/[^/][^/]*$%%'`
-changequote([, ])dnl
- fi
-fi
-undefine([AC_VAR_NAME])dnl
-])
-
dnl ### Canonicalizing the system type
dnl Look for site or system specific initialization scripts.
dnl AC_SITE_LOAD()
-AC_DEFUN(AC_SITE_LOAD,
+define(AC_SITE_LOAD,
[# Prefer explicitly selected file to automatically selected ones.
if test ! -r "$CONFIG_SITE"; then
if test "x$prefix" != xNONE; then
])
dnl AC_CACHE_LOAD()
-AC_DEFUN(AC_CACHE_LOAD,
+define(AC_CACHE_LOAD,
[if test -r "$cache_file"; then
echo "loading cache $cache_file"
. $cache_file
])
dnl AC_CACHE_SAVE()
-AC_DEFUN(AC_CACHE_SAVE,
+define(AC_CACHE_SAVE,
[if test -w $cache_file; then
echo "updating cache $cache_file"
cat > $cache_file <<\EOF
dnl The name of shell var CACHE-ID must contain `_cv_' in order to get saved.
dnl AC_CACHE_VAL(CACHE-ID, COMMANDS-TO-SET-IT)
-AC_DEFUN(AC_CACHE_VAL,
-[AC_REQUIRE([AC_PROG_ECHO_N])dnl
-dnl We used to use the below line, but it fails if the 1st arg is a
+define(AC_CACHE_VAL,
+[dnl We used to use the below line, but it fails if the 1st arg is a
dnl shell variable, so we need the eval.
dnl if test "${$1+set}" = set; then
if eval "test \"`echo '${'$1'+set}'`\" = set"; then
dnl Set VARIABLE to VALUE, verbatim, or 1.
dnl AC_DEFINE(VARIABLE [, VALUE])
-AC_DEFUN(AC_DEFINE,
+define(AC_DEFINE,
[cat >> confdefs.h <<\EOF
[#define] $1 ifelse($#, 2, [$2], 1)
EOF
])
dnl Similar, but perform shell substitutions $ ` \ once on VALUE.
-AC_DEFUN(AC_DEFINE_UNQUOTED,
+define(AC_DEFINE_UNQUOTED,
[cat >> confdefs.h <<EOF
[#define] $1 ifelse($#, 2, [$2], 1)
EOF
dnl This macro protects VARIABLE from being diverted twice
dnl if this macro is called twice for it.
dnl AC_SUBST(VARIABLE)
-AC_DEFUN(AC_SUBST,
+define(AC_SUBST,
[ifdef([AC_SUBST_$1], ,
[define([AC_SUBST_$1], )dnl
AC_DIVERT_PUSH(AC_DIVERSION_SED)dnl
])])
dnl AC_SUBST_FILE(VARIABLE)
-AC_DEFUN(AC_SUBST_FILE,
+define(AC_SUBST_FILE,
[ifdef([AC_SUBST_$1], ,
[define([AC_SUBST_$1], )dnl
AC_DIVERT_PUSH(AC_DIVERSION_SED)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])
+define(AC_MSG_CHECKING,
+[echo $ac_n "checking $1""... $ac_c" 1>&AC_FD_MSG])
dnl AC_CHECKING(FEATURE-DESCRIPTION)
-AC_DEFUN(AC_CHECKING,
+define(AC_CHECKING,
[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""$1" 1>&AC_FD_MSG])
+define(AC_MSG_RESULT,
+[echo "$ac_t""$1" 1>&AC_FD_MSG])
dnl AC_VERBOSE(RESULT-DESCRIPTION)
-AC_DEFUN(AC_VERBOSE,
+define(AC_VERBOSE,
[AC_OBSOLETE([$0], [; instead use AC_MSG_RESULT])dnl
echo " $1" 1>&AC_FD_MSG])
dnl AC_MSG_WARN(PROBLEM-DESCRIPTION)
-AC_DEFUN(AC_MSG_WARN,
+define(AC_MSG_WARN,
[echo "configure: warning: $1" 1>&2])
dnl AC_MSG_ERROR(ERROR-DESCRIPTION)
-AC_DEFUN(AC_MSG_ERROR,
+define(AC_MSG_ERROR,
[{ echo "configure: $1" 1>&2; exit 1; }])
])
dnl Push the current language on a stack.
-
dnl AC_LANG_SAVE()
-AC_DEFUN(AC_LANG_SAVE,
+define(AC_LANG_SAVE,
[pushdef([AC_LANG_STACK], AC_LANG)])
dnl Restore the current language from the stack.
dnl AC_LANG_RESTORE()
-AC_DEFUN(AC_LANG_RESTORE,
+define(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])])
ifelse([$3], , , [test -n "[$]$1" || $1="$3"
])])
+dnl Guess the value for the `prefix' variable by looking for
+dnl the argument program along PATH and taking its parent.
+dnl Example: if the argument is `gcc' and we find /usr/local/gnu/bin/gcc,
+dnl set `prefix' to /usr/local/gnu.
+dnl This comes too late to find a site file based on the prefix,
+dnl and it might use a cached value for the path.
+dnl No big loss, I think, since most configures don't use this macro anyway.
+dnl AC_PREFIX_PROGRAM(PROGRAM)
+AC_DEFUN(AC_PREFIX_PROGRAM,
+[if test "x$prefix" = xNONE; then
+changequote(<<, >>)dnl
+define(<<AC_VAR_NAME>>, translit($1, [a-z], [A-Z]))dnl
+changequote([, ])dnl
+AC_PATH_PROG(AC_VAR_NAME, $1)
+changequote(<<, >>)dnl
+ if test -n "$ac_cv_path_<<>>AC_VAR_NAME"; then
+ prefix=`echo $ac_cv_path_<<>>AC_VAR_NAME|sed 's%/[^/][^/]*/[^/][^/]*$%%'`
+changequote([, ])dnl
+ fi
+fi
+undefine([AC_VAR_NAME])dnl
+])
+
dnl AC_CHECK_LIB(LIBRARY, FUNCTION, [, ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND
dnl [, OTHER-LIBRARIES]]])
AC_DEFUN(AC_CHECK_LIB,
])
-dnl ### The big finish
+dnl ### Controlling Autoconf output
+
+dnl AC_CONFIG_HEADER(HEADER-TO-CREATE ...)
+AC_DEFUN(AC_CONFIG_HEADER,
+[define(AC_LIST_HEADER, $1)])
+
+dnl AC_CONFIG_SUBDIRS(DIR ...)
+AC_DEFUN(AC_CONFIG_SUBDIRS,
+[AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
+define([AC_LIST_SUBDIRS], [$1])dnl
+subdirs="AC_LIST_SUBDIRS"
+AC_SUBST(subdirs)dnl
+])
+dnl The big finish.
dnl Produce config.status, config.h, and links, and configure subdirs.
dnl AC_OUTPUT([FILE...] [, EXTRA-CMDS] [, INIT-CMDS])
-AC_DEFUN(AC_OUTPUT,
+define(AC_OUTPUT,
[AC_CACHE_SAVE
test "x$prefix" = xNONE && prefix=/usr/local
dnl This is a subroutine of AC_OUTPUT.
dnl It is called inside configure, outside of config.status.
dnl AC_OUTPUT_MAKE_DEFS()
-AC_DEFUN(AC_OUTPUT_MAKE_DEFS,
+define(AC_OUTPUT_MAKE_DEFS,
[# Transform confdefs.h into DEFS.
dnl Using a here document instead of a string reduces the quoting nightmare.
cat > conftest.defs <<\EOF
dnl This is a subroutine of AC_OUTPUT. It is called inside an unquoted
dnl here document whose contents are going into config.status.
dnl AC_OUTPUT_FILES(FILE...)
-AC_DEFUN(AC_OUTPUT_FILES,
+define(AC_OUTPUT_FILES,
[# Protect against being on the right side of a sed subst in config.status.
changequote(, )dnl
sed 's/%@/@@/; s/@%/@@/; s/%g$/@g/; /@g$/s/[\\\\&%]/\\\\&/g;
dnl This is a subroutine of AC_OUTPUT. It is called inside a quoted
dnl here document whose contents are going into config.status.
dnl AC_OUTPUT_HEADER(HEADER-FILE...)
-AC_DEFUN(AC_OUTPUT_HEADER,
+define(AC_OUTPUT_HEADER,
[changequote(<<, >>)dnl
# These sed commands are passed to sed as "A NAME B NAME C VALUE D", where
# NAME is the cpp macro being defined and VALUE is the value it is being given.
dnl This is a subroutine of AC_OUTPUT. It is called inside a quoted
dnl here document whose contents are going into config.status.
dnl AC_OUTPUT_LINKS(DEST..., SOURCE...)
-AC_DEFUN(AC_OUTPUT_LINKS,
+define(AC_OUTPUT_LINKS,
[EOF
cat >> ${CONFIG_STATUS} <<EOF
])
dnl AC_OUTPUT_SUBDIRS(DIRECTORY...)
-AC_DEFUN(AC_OUTPUT_SUBDIRS,
+define(AC_OUTPUT_SUBDIRS,
[
if test "${no_recursion}" != yes; then
AC_DEFUN(AC_FUNC_MMAP,
[AC_MSG_CHECKING(for working mmap)
AC_CACHE_VAL(ac_cv_func_mmap,
-[AC_TRY_RUN([/* Thanks to Mike Haertel and Jim Avera for this test. */
+[AC_TRY_RUN([
+/* Thanks to Mike Haertel and Jim Avera for this test. */
#include <sys/types.h>
#include <fcntl.h>
#include <sys/mman.h>
exit(1);
lseek(fd, (long)i, 0);
read(fd, buf2, i); /* read into mapped memory -- file should not change */
- /* (it does in i386 SVR4.0 - Jim Avera) */
+ /* (it does in i386 SVR4.0 - Jim Avera, jima@netcom.com) */
lseek(fd, (long)0, 0);
read(fd, buf3, i2);
for (j = 0; j < i2; ++j)
projects / thirdparty / autoconf.git / commitdiff
