+2000-10-30 Akim Demaille <akim@epita.fr>
+
+ Move the handling of diversions into M4sugar.
+
+ * acgeneral.m4 (_AC_DIVERT, AC_DIVERT, AC_DIVERT_PUSH)
+ (AC_DIVERT_POP): Move to...
+ * m4sugar.m4 (_m4_divert, m4_divert, m4_divert_push)
+ (m4_divert_pop): here.
+ * acgeneral.m4: Adjust to use only the M4sugar macros.
+ Nevertheless...
+ (AC_DIVERT_PUSH, AC_DIVERT_POP): New wrappers around the M4sugar
+ macros.
+ (_AC_DIVERT(...)): Rename all the diversions names as...
+ (_m4_divert(...)): these.
+
2000-10-30 Pavel Roskin <proski@gnu.org>
* m4sh.m4 (AS_EXIT): New macro that exits and makes sure that $?
# AC_DEFUN'd macros are elaborated here.
-# _AC_DIVERT(DIVERSION-NAME)
+# _m4_divert(DIVERSION-NAME)
# --------------------------
# Convert a diversion name into its number. Otherwise, return
# DIVERSION-NAME which is supposed to be an actual diversion number.
# Of course it would be nicer to use m4_case here, instead of zillions
# of little macros, but it then takes twice longer to run `autoconf'!
-define([_AC_DIVERT(KILL)], -1)
+define([_m4_divert(KILL)], -1)
-define([_AC_DIVERT(BINSH)], 0)
-define([_AC_DIVERT(REVISION)], 1)
-define([_AC_DIVERT(NOTICE)], 2)
-define([_AC_DIVERT(DEFAULTS)], 3)
-define([_AC_DIVERT(PARSE_ARGS)], 4)
+define([_m4_divert(BINSH)], 0)
+define([_m4_divert(REVISION)], 1)
+define([_m4_divert(NOTICE)], 2)
+define([_m4_divert(DEFAULTS)], 3)
+define([_m4_divert(PARSE_ARGS)], 4)
-define([_AC_DIVERT(HELP_BEGIN)], 10)
-define([_AC_DIVERT(HELP_CANON)], 11)
-define([_AC_DIVERT(HELP_ENABLE)], 12)
-define([_AC_DIVERT(HELP_WITH)], 13)
-define([_AC_DIVERT(HELP_VAR)], 14)
-define([_AC_DIVERT(HELP_VAR_END)], 15)
-define([_AC_DIVERT(HELP_END)], 16)
+define([_m4_divert(HELP_BEGIN)], 10)
+define([_m4_divert(HELP_CANON)], 11)
+define([_m4_divert(HELP_ENABLE)], 12)
+define([_m4_divert(HELP_WITH)], 13)
+define([_m4_divert(HELP_VAR)], 14)
+define([_m4_divert(HELP_VAR_END)], 15)
+define([_m4_divert(HELP_END)], 16)
-define([_AC_DIVERT(VERSION_BEGIN)], 20)
-define([_AC_DIVERT(VERSION_END)], 21)
+define([_m4_divert(VERSION_BEGIN)], 20)
+define([_m4_divert(VERSION_END)], 21)
-define([_AC_DIVERT(INIT_PREPARE)], 30)
+define([_m4_divert(INIT_PREPARE)], 30)
-define([_AC_DIVERT(BODY)], 40)
+define([_m4_divert(BODY)], 40)
-define([_AC_DIVERT(PREPARE)], 100)
+define([_m4_divert(PREPARE)], 100)
-define([_AC_DIVERT],
-[ifdef([_AC_DIVERT($1)],
- [indir([_AC_DIVERT($1)])],
- [$1])])
+
+
+# AC_DIVERT_ONCE(DIVERSION-NAME, CONTENT)
+# ---------------------------------------
+# Output once CONTENT into DIVERSION-NAME (which may be a number
+# actually). An end of line is appended for free to CONTENT.
+define([AC_DIVERT_ONCE],
+[AC_EXPAND_ONCE([m4_divert([$1], [$2])])])
# AC_DIVERT_PUSH(DIVERSION-NAME)
# ------------------------------
-# Change the diversion stream to DIVERSION-NAME, while stacking old values.
define([AC_DIVERT_PUSH],
-[pushdef([_AC_DIVERT_DIVERSION], _AC_DIVERT([$1]))dnl
-divert(_AC_DIVERT_DIVERSION)dnl
-])
+[m4_divert_push($@)])
# AC_DIVERT_POP
# -------------
-# Change the diversion stream to its previous value, unstacking it.
define([AC_DIVERT_POP],
-[popdef([_AC_DIVERT_DIVERSION])dnl
-ifndef([_AC_DIVERT_DIVERSION], [AC_FATAL([too many AC_DIVERT_POP])])dnl
-divert(_AC_DIVERT_DIVERSION)dnl
-])
-
-
-# AC_DIVERT(DIVERSION-NAME, CONTENT)
-# ----------------------------------
-# Output CONTENT into DIVERSION-NAME (which may be a number actually).
-# An end of line is appended for free to CONTENT.
-define([AC_DIVERT],
-[AC_DIVERT_PUSH([$1])dnl
-$2
-AC_DIVERT_POP()dnl
-])
-
-
-# AC_DIVERT_ONCE(DIVERSION-NAME, CONTENT)
-# ---------------------------------------
-# Output once CONTENT into DIVERSION-NAME (which may be a number
-# actually). An end of line is appended for free to CONTENT.
-define([AC_DIVERT_ONCE],
-[AC_EXPAND_ONCE([AC_DIVERT([$1], [$2])])])
+[m4_divert_pop($@)])
# Initialize the diversion setup.
-define([_AC_DIVERT_DIVERSION], _AC_DIVERT([BODY]))
+define([_m4_divert_diversion], _m4_divert([BODY]))
# Throw away output until AC_INIT is called.
-pushdef([_AC_DIVERT_DIVERSION], _AC_DIVERT([KILL]))
+pushdef([_m4_divert_diversion], _m4_divert([KILL]))
#
# This implements tries not to assume that of the current diversion is
# BODY, so as soon as a macro (AC_DEFUN'd) is expanded, we first
-# record the current diversion under the name _AC_DIVERT_DUMP (denoted
+# record the current diversion under the name _m4_divert_dump (denoted
# DUMP below for short). This introduces an important difference with
# the previous versions of Autoconf: you cannot use AC_REQUIRE if you
# were not inside an AC_DEFUN'd macro, and especially, you cannot
# * TEST1 is expanded
# The prologue of TEST1 sets AC_DIVERSION_DUMP, which is the diversion
# where the current elaboration will be dumped, to the current
-# diversion. It also AC_DIVERT_PUSH to PREPARE, where the full
+# diversion. It also m4_divert_push to PREPARE, where the full
# expansion of TEST1 and its dependencies will be elaborated.
# DUMP: BODY
# BODY: empty
# diversions: PREPARE, BODY |-
#
# * TEST1 requires TEST2a: prologue
-# AC_REQUIRE AC_DIVERT_PUSHes another temporary diversion PREPARE - 1 (in
+# AC_REQUIRE m4_divert_pushes another temporary diversion PREPARE - 1 (in
# fact, the diversion whose number is one less than the current
# diversion), and expands TEST2a in there.
# DUMP: BODY
pushdef([_AC_EXPANSION_STACK],
defn([m4_location($1)])[: $1 is expanded from...])dnl
pushdef([_AC_EXPANDING($1)])dnl
-ifdef([_AC_DIVERT_DUMP],
- [AC_DIVERT_PUSH(defn([_AC_DIVERT_DIVERSION]))],
- [define([_AC_DIVERT_DUMP], defn([_AC_DIVERT_DIVERSION]))dnl
-AC_DIVERT_PUSH([PREPARE])])dnl
+ifdef([_m4_divert_dump],
+ [m4_divert_push(defn([_m4_divert_diversion]))],
+ [define([_m4_divert_dump], defn([_m4_divert_diversion]))dnl
+m4_divert_push([PREPARE])])dnl
])
# The Epilogue for Autoconf macros. MACRO-NAME only helps tracing
# the PRO/EPI pairs.
define([_AC_DEFUN_EPI],
-[AC_DIVERT_POP()dnl
-ifelse(_AC_DIVERT_DUMP, _AC_DIVERT_DIVERSION,
- [undivert(_AC_DIVERT([PREPARE]))dnl
-undefine([_AC_DIVERT_DUMP])])dnl
+[m4_divert_pop()dnl
+ifelse(_m4_divert_dump, _m4_divert_diversion,
+ [undivert(_m4_divert([PREPARE]))dnl
+undefine([_m4_divert_dump])])dnl
popdef([_AC_EXPANSION_STACK])dnl
popdef([_AC_EXPANDING($1)])dnl
])
# ------------------------------------------
# If NAME-TO-CHECK has never been expanded (actually, if it is not
# AC_PROVIDE'd), expand BODY-TO-EXPAND *before* the current macro
-# expansion. Once expanded, emit it in _AC_DIVERT_DUMP. Keep track
+# expansion. Once expanded, emit it in _m4_divert_dump. Keep track
# of the AC_REQUIRE chain in _AC_EXPANSION_STACK.
#
# The normal cases are:
m4_location[: $1 is required by...])dnl
ifdef([_AC_EXPANDING($1)],
[AC_FATAL([AC_REQUIRE: circular dependency of $1])])dnl
-ifndef([_AC_DIVERT_DUMP],
+ifndef([_m4_divert_dump],
[AC_FATAL([AC_REQUIRE: cannot be used outside of an AC_DEFUN'd macro])])dnl
AC_PROVIDE_IFELSE([$1],
[],
- [AC_DIVERT_PUSH(m4_eval(_AC_DIVERT_DIVERSION - 1))dnl
+ [m4_divert_push(m4_eval(_m4_divert_diversion - 1))dnl
$2
-divert(_AC_DIVERT_DUMP)undivert(_AC_DIVERT_DIVERSION)dnl
-AC_DIVERT_POP()])dnl
+divert(_m4_divert_dump)undivert(_m4_divert_diversion)dnl
+m4_divert_pop()])dnl
AC_PROVIDE_IFELSE([$1],
[],
[AC_DIAGNOSE([syntax],
#
# patsubst(m4_quote($1), [^], [# ])
define([AC_COPYRIGHT],
-[AC_DIVERT([NOTICE],
+[m4_divert([NOTICE],
[patsubst([
$1], [^], [@%:@ ])])dnl
-AC_DIVERT([VERSION_BEGIN],
+m4_divert([VERSION_BEGIN],
[
$1])dnl
])# AC_COPYRIGHT
# The second quote in the translit is just to cope with font-lock-mode
# which sees the opening of a string.
define([AC_REVISION],
-[AC_DIVERT([REVISION], [@%:@ From configure.in translit([$1], $"").])dnl
+[m4_divert([REVISION], [@%:@ From configure.in translit([$1], $"").])dnl
])
# -----------------
# Values which defaults can be set from `configure.in'.
define([_AC_INIT_DEFAULTS],
-[AC_DIVERT_PUSH([DEFAULTS])dnl
+[m4_divert_push([DEFAULTS])dnl
_AC_INIT_PREPARE_ENVIRONMENT
#
#if HAVE_UNISTD_H
# include <unistd.h>
#endif"
-AC_DIVERT_POP()dnl
+m4_divert_pop()dnl
])# _AC_INIT_DEFAULTS
# AC_PREFIX_DEFAULT(PREFIX)
# -------------------------
AC_DEFUN([AC_PREFIX_DEFAULT],
-[AC_DIVERT([DEFAULTS], [ac_default_prefix=$1])])
+[m4_divert([DEFAULTS], [ac_default_prefix=$1])])
# AC_CONFIG_SRCDIR([UNIQUE-FILE-IN-SOURCE-DIR])
# relative to the directory that configure is in, which we can look
# for to find out if srcdir is correct.
AC_DEFUN([AC_CONFIG_SRCDIR],
-[AC_DIVERT([DEFAULTS], [ac_unique_file="$1"])])
+[m4_divert([DEFAULTS], [ac_unique_file="$1"])])
# _AC_INIT_SRCDIR
# ---------------
# Compute `srcdir' based on `$ac_unique_file'.
define([_AC_INIT_SRCDIR],
-[AC_DIVERT_PUSH([PARSE_ARGS])dnl
+[m4_divert_push([PARSE_ARGS])dnl
# Find the source files, if location was not specified.
if test -z "$srcdir"; then
dnl Double slashes in pathnames in object file debugging info
dnl mess up M-x gdb in Emacs.
srcdir=`echo "$srcdir" | sed 's%\([[^/]]\)/*$%\1%'`
-AC_DIVERT_POP()dnl
+m4_divert_pop()dnl
])# _AC_INIT_SRCDIR
# _AC_INIT_PARSE_ARGS
# -------------------
define([_AC_INIT_PARSE_ARGS],
-[AC_DIVERT_PUSH([PARSE_ARGS])dnl
+[m4_divert_push([PARSE_ARGS])dnl
# Initialize some variables set by options.
ac_init_help=
ac_tool_prefix=
test -n "$host_alias" && ac_tool_prefix=$host_alias-
-AC_DIVERT_POP()dnl
+m4_divert_pop()dnl
])# _AC_INIT_PARSE_ARGS
# -------------
# Handle the `configure --help' message.
define([_AC_INIT_HELP],
-[AC_DIVERT_PUSH([HELP_BEGIN])dnl
+[m4_divert_push([HELP_BEGIN])dnl
#
# Report the --help message.
EOF
cat <<\EOF]
-AC_DIVERT_POP()dnl
+m4_divert_pop()dnl
dnl The order of the diversions here is
dnl - HELP_BEGIN
dnl which may be prolongated by extra generic options such as with X or
dnl - HELP_END
dnl initialized below, in which we dump the trailer (handling of the
dnl recursion for instance).
-AC_DIVERT_PUSH([HELP_ENABLE])dnl
+m4_divert_push([HELP_ENABLE])dnl
EOF
fi
short | recursive ) echo "Configuration of AC_PACKAGE_STRING:";;
esac])
cat <<\EOF
-AC_DIVERT_POP()dnl
-AC_DIVERT_PUSH([HELP_END])dnl
+m4_divert_pop()dnl
+m4_divert_push([HELP_END])dnl
ifset([AC_PACKAGE_BUGREPORT], [
Report bugs to <AC_PACKAGE_BUGREPORT>.])
EOF
fi
test -n "$ac_init_help" && exit 0
-AC_DIVERT_POP()dnl
+m4_divert_pop()dnl
])# _AC_INIT_HELP
# ----------------
# Handle the `configure --version' message.
define([_AC_INIT_VERSION],
-[AC_DIVERT([VERSION_BEGIN],
+[m4_divert([VERSION_BEGIN],
[if $ac_init_version; then
cat <<\EOF])dnl
ifset([AC_PACKAGE_STRING],
-[AC_DIVERT([VERSION_BEGIN],
+[m4_divert([VERSION_BEGIN],
[configure (AC_PACKAGE_STRING) AC_ACVERSION])])
-AC_DIVERT([VERSION_END],
+m4_divert([VERSION_END],
[EOF
exit 0
fi])dnl
# 4. Ensure a correct environment
# 5. Required macros (cache, default AC_SUBST etc.)
define([_AC_INIT_PREPARE],
-[AC_DIVERT_PUSH([INIT_PREPARE])dnl
+[m4_divert_push([INIT_PREPARE])dnl
# Keep a trace of the command line.
# Strip out --no-create and --no-recursion so they do not pile up.
AC_SUBST(DEFS)dnl
AC_SUBST(LDFLAGS)dnl
AC_SUBST(LIBS)dnl
-AC_DIVERT_POP()dnl
+m4_divert_pop()dnl
])# _AC_INIT_PREPARE
# _AC_INIT_NOTICE
# ---------------
define([_AC_INIT_NOTICE],
-[AC_DIVERT([NOTICE],
+[m4_divert([NOTICE],
[@%:@ Guess values for system-dependent variables and create Makefiles.
@%:@ Generated by Autoconf AC_ACVERSION[]dnl
ifset([AC_PACKAGE_STRING], [ for AC_PACKAGE_STRING]).])
ifset([AC_PACKAGE_BUGREPORT],
- [AC_DIVERT([NOTICE],
+ [m4_divert([NOTICE],
[@%:@
@%:@ Report bugs to <AC_PACKAGE_BUGREPORT>.])])
])
# AC_CONFIG_SRCDIR.
define([AC_INIT],
[ifval([$2], [_AC_INIT_PACKAGE($@)])dnl
-AC_DIVERT([BINSH], [@%:@! /bin/sh])
+m4_divert([BINSH], [@%:@! /bin/sh])
_AC_INIT_DEFAULTS()dnl
-AC_DIVERT_POP()dnl to BODY
+m4_divert_pop()dnl to BODY
_AC_INIT_PARSE_ARGS
_AC_INIT_SRCDIR
_AC_INIT_HELP
# generation. This is used by some tests, and let `autoconf' be used to
# generate other scripts than `configure'.
define([AC_PLAIN_SCRIPT],
-[AC_DIVERT_POP()])
+[m4_divert_pop()])
## ----------------------------- ##
# installed as `ggfoo'.
AC_DEFUN_ONCE([AC_ARG_PROGRAM],
[dnl Document the options.
-AC_DIVERT_PUSH([HELP_BEGIN])dnl
+m4_divert_push([HELP_BEGIN])dnl
Program names:
--program-prefix=PREFIX prepend PREFIX to installed program names
--program-suffix=SUFFIX append SUFFIX to installed program names
--program-transform-name=PROGRAM run sed PROGRAM on installed program names
-AC_DIVERT_POP()dnl
+m4_divert_pop()dnl
if test "$program_transform_name" = s,x,x,; then
program_transform_name=
else
# ------------------
AC_DEFUN_ONCE([AC_CANONICAL_BUILD],
[AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
-AC_DIVERT([HELP_CANON],
+m4_divert([HELP_CANON],
[[
System types:
--build=BUILD configure for building on BUILD [guessed]]])dnl
# -----------------
AC_DEFUN_ONCE([AC_CANONICAL_HOST],
[AC_REQUIRE([AC_CANONICAL_BUILD])dnl
-AC_DIVERT([HELP_CANON],
+m4_divert([HELP_CANON],
[[ --host=HOST build programs to run on HOST [BUILD]]])dnl
AC_CACHE_CHECK([host system type], [ac_cv_host],
[ac_cv_host_alias=$host_alias
AC_DEFUN_ONCE([AC_CANONICAL_TARGET],
[AC_REQUIRE([AC_CANONICAL_HOST])dnl
AC_BEFORE([$0], [AC_ARG_PROGRAM])dnl
-AC_DIVERT([HELP_CANON],
+m4_divert([HELP_CANON],
[[ --target=TARGET configure for building compilers for TARGET [HOST]]])dnl
AC_CACHE_CHECK([target system type], [ac_cv_target],
[dnl Set target_alias.
# -------------------------------------------------------
# Declare the DESTs depend upon their SOURCE1 etc.
define([_AC_CONFIG_DEPENDENCIES],
-[AC_DIVERT_PUSH([KILL])
+[m4_divert_push([KILL])
AC_FOREACH([AC_File], [$1],
[_AC_CONFIG_DEPENDENCY(patsubst(AC_File, [:], [,]))])
-AC_DIVERT_POP()dnl
+m4_divert_pop()dnl
])
# Note that this macro does not check if the list $[1] itself
# contains doubles.
define([_AC_CONFIG_UNIQUE],
-[AC_DIVERT_PUSH([KILL])
+[m4_divert_push([KILL])
AC_FOREACH([AC_File], [$1],
[pushdef([AC_Dest], patsubst(AC_File, [:.*]))
AC_CONFIG_IF_MEMBER(AC_Dest, [AC_LIST_HEADERS],
AC_CONFIG_IF_MEMBER(AC_Dest, [AC_LIST_FILES],
[AC_FATAL(`AC_Dest' [is already registered with AC_CONFIG_FILES or AC_OUTPUT.])])
popdef([AC_Dest])])
-AC_DIVERT_POP()dnl
+m4_divert_pop()dnl
])
# commands must be associated with a NAME, which should be thought
# as the name of a file the COMMANDS create.
AC_DEFUN([AC_CONFIG_COMMANDS],
-[AC_DIVERT_PUSH([KILL])
+[m4_divert_push([KILL])
_AC_CONFIG_UNIQUE([$1])
m4_append([AC_LIST_COMMANDS], [ $1])
[ ]patsubst(AC_Name, [:.*])[ ) $2 ;;
])])])
_AC_CONFIG_COMMANDS_INIT([$3])
-AC_DIVERT_POP()dnl
+m4_divert_pop()dnl
ac_config_commands="$ac_config_commands $1"
])dnl
# AC_LIST_HEADERS_COMMANDS
# esac
AC_DEFUN([AC_CONFIG_HEADERS],
-[AC_DIVERT_PUSH([KILL])
+[m4_divert_push([KILL])
_AC_CONFIG_UNIQUE([$1])
_AC_CONFIG_DEPENDENCIES([$1])
m4_append([AC_LIST_HEADERS], [ $1])
[ ]patsubst(AC_File, [:.*])[ ) $2 ;;
])])])
_AC_CONFIG_COMMANDS_INIT([$3])
-AC_DIVERT_POP()dnl
+m4_divert_pop()dnl
ac_config_headers="$ac_config_headers $1"
])dnl
# Reject DEST=., because it is makes it hard for ./config.status
# to guess the links to establish (`./config.status .').
AC_DEFUN([AC_CONFIG_LINKS],
-[AC_DIVERT_PUSH([KILL])
+[m4_divert_push([KILL])
_AC_CONFIG_UNIQUE([$1])
_AC_CONFIG_DEPENDENCIES([$1])
ifelse(regexp([$1], [^\.:\| \.:]), -1,,
[ ]patsubst(AC_File, [:.*])[ ) $2 ;;
])])])
_AC_CONFIG_COMMANDS_INIT([$3])
-AC_DIVERT_POP()dnl
+m4_divert_pop()dnl
ac_config_links="$ac_config_links $1"
])dnl
# AC_LIST_FILES_COMMANDS
# esac
AC_DEFUN([AC_CONFIG_FILES],
-[AC_DIVERT_PUSH([KILL])
+[m4_divert_push([KILL])
_AC_CONFIG_UNIQUE([$1])
_AC_CONFIG_DEPENDENCIES([$1])
m4_append([AC_LIST_FILES], [ $1])
[ ]patsubst(AC_File, [:.*])[ ) $2 ;;
])])])
_AC_CONFIG_COMMANDS_INIT([$3])
-AC_DIVERT_POP()dnl
+m4_divert_pop()dnl
ac_config_files="$ac_config_files $1"
])dnl
AC_VAR_INDIR_IFELSE([$1],
[AC_DIAGNOSE(syntax,
[$0: you should use literals])])
-AC_DIVERT([DEFAULTS], [ac_subdirs_all="$ac_subdirs_all $1"])
+m4_divert([DEFAULTS], [ac_subdirs_all="$ac_subdirs_all $1"])
AC_SUBST(subdirs, "$subdirs $1")dnl
])
# configuration. The introduction of AC_EXEEXT, enabled either by
# libtool or by CVS autoconf, have just made matters worse.
AC_DEFUN_ONCE([AC_NO_EXECUTABLES],
-[AC_DIVERT_PUSH([KILL])
+[m4_divert_push([KILL])
AC_BEFORE([$0], [_AC_LANG_COMPILER_WORKS])
AC_BEFORE([$0], [_AC_EXEEXT])
define([AC_LINK_IFELSE],
[AC_FATAL([All the tests involving linking were disabled by $0])])
-AC_DIVERT_POP()dnl
+m4_divert_pop()dnl
])# # AC_NO_EXECUTABLES
# configuration. The introduction of AC_EXEEXT, enabled either by
# libtool or by CVS autoconf, have just made matters worse.
AC_DEFUN_ONCE([AC_NO_EXECUTABLES],
-[AC_DIVERT_PUSH([KILL])
+[m4_divert_push([KILL])
AC_BEFORE([$0], [_AC_LANG_COMPILER_WORKS])
AC_BEFORE([$0], [_AC_EXEEXT])
define([AC_LINK_IFELSE],
[AC_FATAL([All the tests involving linking were disabled by $0])])
-AC_DIVERT_POP()dnl
+m4_divert_pop()dnl
])# # AC_NO_EXECUTABLES
# configuration. The introduction of AC_EXEEXT, enabled either by
# libtool or by CVS autoconf, have just made matters worse.
AC_DEFUN_ONCE([AC_NO_EXECUTABLES],
-[AC_DIVERT_PUSH([KILL])
+[m4_divert_push([KILL])
AC_BEFORE([$0], [_AC_LANG_COMPILER_WORKS])
AC_BEFORE([$0], [_AC_EXEEXT])
define([AC_LINK_IFELSE],
[AC_FATAL([All the tests involving linking were disabled by $0])])
-AC_DIVERT_POP()dnl
+m4_divert_pop()dnl
])# # AC_NO_EXECUTABLES
# AC_DEFUN'd macros are elaborated here.
-# _AC_DIVERT(DIVERSION-NAME)
+# _m4_divert(DIVERSION-NAME)
# --------------------------
# Convert a diversion name into its number. Otherwise, return
# DIVERSION-NAME which is supposed to be an actual diversion number.
# Of course it would be nicer to use m4_case here, instead of zillions
# of little macros, but it then takes twice longer to run `autoconf'!
-define([_AC_DIVERT(KILL)], -1)
+define([_m4_divert(KILL)], -1)
-define([_AC_DIVERT(BINSH)], 0)
-define([_AC_DIVERT(REVISION)], 1)
-define([_AC_DIVERT(NOTICE)], 2)
-define([_AC_DIVERT(DEFAULTS)], 3)
-define([_AC_DIVERT(PARSE_ARGS)], 4)
+define([_m4_divert(BINSH)], 0)
+define([_m4_divert(REVISION)], 1)
+define([_m4_divert(NOTICE)], 2)
+define([_m4_divert(DEFAULTS)], 3)
+define([_m4_divert(PARSE_ARGS)], 4)
-define([_AC_DIVERT(HELP_BEGIN)], 10)
-define([_AC_DIVERT(HELP_CANON)], 11)
-define([_AC_DIVERT(HELP_ENABLE)], 12)
-define([_AC_DIVERT(HELP_WITH)], 13)
-define([_AC_DIVERT(HELP_VAR)], 14)
-define([_AC_DIVERT(HELP_VAR_END)], 15)
-define([_AC_DIVERT(HELP_END)], 16)
+define([_m4_divert(HELP_BEGIN)], 10)
+define([_m4_divert(HELP_CANON)], 11)
+define([_m4_divert(HELP_ENABLE)], 12)
+define([_m4_divert(HELP_WITH)], 13)
+define([_m4_divert(HELP_VAR)], 14)
+define([_m4_divert(HELP_VAR_END)], 15)
+define([_m4_divert(HELP_END)], 16)
-define([_AC_DIVERT(VERSION_BEGIN)], 20)
-define([_AC_DIVERT(VERSION_END)], 21)
+define([_m4_divert(VERSION_BEGIN)], 20)
+define([_m4_divert(VERSION_END)], 21)
-define([_AC_DIVERT(INIT_PREPARE)], 30)
+define([_m4_divert(INIT_PREPARE)], 30)
-define([_AC_DIVERT(BODY)], 40)
+define([_m4_divert(BODY)], 40)
-define([_AC_DIVERT(PREPARE)], 100)
+define([_m4_divert(PREPARE)], 100)
-define([_AC_DIVERT],
-[ifdef([_AC_DIVERT($1)],
- [indir([_AC_DIVERT($1)])],
- [$1])])
+
+
+# AC_DIVERT_ONCE(DIVERSION-NAME, CONTENT)
+# ---------------------------------------
+# Output once CONTENT into DIVERSION-NAME (which may be a number
+# actually). An end of line is appended for free to CONTENT.
+define([AC_DIVERT_ONCE],
+[AC_EXPAND_ONCE([m4_divert([$1], [$2])])])
# AC_DIVERT_PUSH(DIVERSION-NAME)
# ------------------------------
-# Change the diversion stream to DIVERSION-NAME, while stacking old values.
define([AC_DIVERT_PUSH],
-[pushdef([_AC_DIVERT_DIVERSION], _AC_DIVERT([$1]))dnl
-divert(_AC_DIVERT_DIVERSION)dnl
-])
+[m4_divert_push($@)])
# AC_DIVERT_POP
# -------------
-# Change the diversion stream to its previous value, unstacking it.
define([AC_DIVERT_POP],
-[popdef([_AC_DIVERT_DIVERSION])dnl
-ifndef([_AC_DIVERT_DIVERSION], [AC_FATAL([too many AC_DIVERT_POP])])dnl
-divert(_AC_DIVERT_DIVERSION)dnl
-])
-
-
-# AC_DIVERT(DIVERSION-NAME, CONTENT)
-# ----------------------------------
-# Output CONTENT into DIVERSION-NAME (which may be a number actually).
-# An end of line is appended for free to CONTENT.
-define([AC_DIVERT],
-[AC_DIVERT_PUSH([$1])dnl
-$2
-AC_DIVERT_POP()dnl
-])
-
-
-# AC_DIVERT_ONCE(DIVERSION-NAME, CONTENT)
-# ---------------------------------------
-# Output once CONTENT into DIVERSION-NAME (which may be a number
-# actually). An end of line is appended for free to CONTENT.
-define([AC_DIVERT_ONCE],
-[AC_EXPAND_ONCE([AC_DIVERT([$1], [$2])])])
+[m4_divert_pop($@)])
# Initialize the diversion setup.
-define([_AC_DIVERT_DIVERSION], _AC_DIVERT([BODY]))
+define([_m4_divert_diversion], _m4_divert([BODY]))
# Throw away output until AC_INIT is called.
-pushdef([_AC_DIVERT_DIVERSION], _AC_DIVERT([KILL]))
+pushdef([_m4_divert_diversion], _m4_divert([KILL]))
#
# This implements tries not to assume that of the current diversion is
# BODY, so as soon as a macro (AC_DEFUN'd) is expanded, we first
-# record the current diversion under the name _AC_DIVERT_DUMP (denoted
+# record the current diversion under the name _m4_divert_dump (denoted
# DUMP below for short). This introduces an important difference with
# the previous versions of Autoconf: you cannot use AC_REQUIRE if you
# were not inside an AC_DEFUN'd macro, and especially, you cannot
# * TEST1 is expanded
# The prologue of TEST1 sets AC_DIVERSION_DUMP, which is the diversion
# where the current elaboration will be dumped, to the current
-# diversion. It also AC_DIVERT_PUSH to PREPARE, where the full
+# diversion. It also m4_divert_push to PREPARE, where the full
# expansion of TEST1 and its dependencies will be elaborated.
# DUMP: BODY
# BODY: empty
# diversions: PREPARE, BODY |-
#
# * TEST1 requires TEST2a: prologue
-# AC_REQUIRE AC_DIVERT_PUSHes another temporary diversion PREPARE - 1 (in
+# AC_REQUIRE m4_divert_pushes another temporary diversion PREPARE - 1 (in
# fact, the diversion whose number is one less than the current
# diversion), and expands TEST2a in there.
# DUMP: BODY
pushdef([_AC_EXPANSION_STACK],
defn([m4_location($1)])[: $1 is expanded from...])dnl
pushdef([_AC_EXPANDING($1)])dnl
-ifdef([_AC_DIVERT_DUMP],
- [AC_DIVERT_PUSH(defn([_AC_DIVERT_DIVERSION]))],
- [define([_AC_DIVERT_DUMP], defn([_AC_DIVERT_DIVERSION]))dnl
-AC_DIVERT_PUSH([PREPARE])])dnl
+ifdef([_m4_divert_dump],
+ [m4_divert_push(defn([_m4_divert_diversion]))],
+ [define([_m4_divert_dump], defn([_m4_divert_diversion]))dnl
+m4_divert_push([PREPARE])])dnl
])
# The Epilogue for Autoconf macros. MACRO-NAME only helps tracing
# the PRO/EPI pairs.
define([_AC_DEFUN_EPI],
-[AC_DIVERT_POP()dnl
-ifelse(_AC_DIVERT_DUMP, _AC_DIVERT_DIVERSION,
- [undivert(_AC_DIVERT([PREPARE]))dnl
-undefine([_AC_DIVERT_DUMP])])dnl
+[m4_divert_pop()dnl
+ifelse(_m4_divert_dump, _m4_divert_diversion,
+ [undivert(_m4_divert([PREPARE]))dnl
+undefine([_m4_divert_dump])])dnl
popdef([_AC_EXPANSION_STACK])dnl
popdef([_AC_EXPANDING($1)])dnl
])
# ------------------------------------------
# If NAME-TO-CHECK has never been expanded (actually, if it is not
# AC_PROVIDE'd), expand BODY-TO-EXPAND *before* the current macro
-# expansion. Once expanded, emit it in _AC_DIVERT_DUMP. Keep track
+# expansion. Once expanded, emit it in _m4_divert_dump. Keep track
# of the AC_REQUIRE chain in _AC_EXPANSION_STACK.
#
# The normal cases are:
m4_location[: $1 is required by...])dnl
ifdef([_AC_EXPANDING($1)],
[AC_FATAL([AC_REQUIRE: circular dependency of $1])])dnl
-ifndef([_AC_DIVERT_DUMP],
+ifndef([_m4_divert_dump],
[AC_FATAL([AC_REQUIRE: cannot be used outside of an AC_DEFUN'd macro])])dnl
AC_PROVIDE_IFELSE([$1],
[],
- [AC_DIVERT_PUSH(m4_eval(_AC_DIVERT_DIVERSION - 1))dnl
+ [m4_divert_push(m4_eval(_m4_divert_diversion - 1))dnl
$2
-divert(_AC_DIVERT_DUMP)undivert(_AC_DIVERT_DIVERSION)dnl
-AC_DIVERT_POP()])dnl
+divert(_m4_divert_dump)undivert(_m4_divert_diversion)dnl
+m4_divert_pop()])dnl
AC_PROVIDE_IFELSE([$1],
[],
[AC_DIAGNOSE([syntax],
#
# patsubst(m4_quote($1), [^], [# ])
define([AC_COPYRIGHT],
-[AC_DIVERT([NOTICE],
+[m4_divert([NOTICE],
[patsubst([
$1], [^], [@%:@ ])])dnl
-AC_DIVERT([VERSION_BEGIN],
+m4_divert([VERSION_BEGIN],
[
$1])dnl
])# AC_COPYRIGHT
# The second quote in the translit is just to cope with font-lock-mode
# which sees the opening of a string.
define([AC_REVISION],
-[AC_DIVERT([REVISION], [@%:@ From configure.in translit([$1], $"").])dnl
+[m4_divert([REVISION], [@%:@ From configure.in translit([$1], $"").])dnl
])
# -----------------
# Values which defaults can be set from `configure.in'.
define([_AC_INIT_DEFAULTS],
-[AC_DIVERT_PUSH([DEFAULTS])dnl
+[m4_divert_push([DEFAULTS])dnl
_AC_INIT_PREPARE_ENVIRONMENT
#
#if HAVE_UNISTD_H
# include <unistd.h>
#endif"
-AC_DIVERT_POP()dnl
+m4_divert_pop()dnl
])# _AC_INIT_DEFAULTS
# AC_PREFIX_DEFAULT(PREFIX)
# -------------------------
AC_DEFUN([AC_PREFIX_DEFAULT],
-[AC_DIVERT([DEFAULTS], [ac_default_prefix=$1])])
+[m4_divert([DEFAULTS], [ac_default_prefix=$1])])
# AC_CONFIG_SRCDIR([UNIQUE-FILE-IN-SOURCE-DIR])
# relative to the directory that configure is in, which we can look
# for to find out if srcdir is correct.
AC_DEFUN([AC_CONFIG_SRCDIR],
-[AC_DIVERT([DEFAULTS], [ac_unique_file="$1"])])
+[m4_divert([DEFAULTS], [ac_unique_file="$1"])])
# _AC_INIT_SRCDIR
# ---------------
# Compute `srcdir' based on `$ac_unique_file'.
define([_AC_INIT_SRCDIR],
-[AC_DIVERT_PUSH([PARSE_ARGS])dnl
+[m4_divert_push([PARSE_ARGS])dnl
# Find the source files, if location was not specified.
if test -z "$srcdir"; then
dnl Double slashes in pathnames in object file debugging info
dnl mess up M-x gdb in Emacs.
srcdir=`echo "$srcdir" | sed 's%\([[^/]]\)/*$%\1%'`
-AC_DIVERT_POP()dnl
+m4_divert_pop()dnl
])# _AC_INIT_SRCDIR
# _AC_INIT_PARSE_ARGS
# -------------------
define([_AC_INIT_PARSE_ARGS],
-[AC_DIVERT_PUSH([PARSE_ARGS])dnl
+[m4_divert_push([PARSE_ARGS])dnl
# Initialize some variables set by options.
ac_init_help=
ac_tool_prefix=
test -n "$host_alias" && ac_tool_prefix=$host_alias-
-AC_DIVERT_POP()dnl
+m4_divert_pop()dnl
])# _AC_INIT_PARSE_ARGS
# -------------
# Handle the `configure --help' message.
define([_AC_INIT_HELP],
-[AC_DIVERT_PUSH([HELP_BEGIN])dnl
+[m4_divert_push([HELP_BEGIN])dnl
#
# Report the --help message.
EOF
cat <<\EOF]
-AC_DIVERT_POP()dnl
+m4_divert_pop()dnl
dnl The order of the diversions here is
dnl - HELP_BEGIN
dnl which may be prolongated by extra generic options such as with X or
dnl - HELP_END
dnl initialized below, in which we dump the trailer (handling of the
dnl recursion for instance).
-AC_DIVERT_PUSH([HELP_ENABLE])dnl
+m4_divert_push([HELP_ENABLE])dnl
EOF
fi
short | recursive ) echo "Configuration of AC_PACKAGE_STRING:";;
esac])
cat <<\EOF
-AC_DIVERT_POP()dnl
-AC_DIVERT_PUSH([HELP_END])dnl
+m4_divert_pop()dnl
+m4_divert_push([HELP_END])dnl
ifset([AC_PACKAGE_BUGREPORT], [
Report bugs to <AC_PACKAGE_BUGREPORT>.])
EOF
fi
test -n "$ac_init_help" && exit 0
-AC_DIVERT_POP()dnl
+m4_divert_pop()dnl
])# _AC_INIT_HELP
# ----------------
# Handle the `configure --version' message.
define([_AC_INIT_VERSION],
-[AC_DIVERT([VERSION_BEGIN],
+[m4_divert([VERSION_BEGIN],
[if $ac_init_version; then
cat <<\EOF])dnl
ifset([AC_PACKAGE_STRING],
-[AC_DIVERT([VERSION_BEGIN],
+[m4_divert([VERSION_BEGIN],
[configure (AC_PACKAGE_STRING) AC_ACVERSION])])
-AC_DIVERT([VERSION_END],
+m4_divert([VERSION_END],
[EOF
exit 0
fi])dnl
# 4. Ensure a correct environment
# 5. Required macros (cache, default AC_SUBST etc.)
define([_AC_INIT_PREPARE],
-[AC_DIVERT_PUSH([INIT_PREPARE])dnl
+[m4_divert_push([INIT_PREPARE])dnl
# Keep a trace of the command line.
# Strip out --no-create and --no-recursion so they do not pile up.
AC_SUBST(DEFS)dnl
AC_SUBST(LDFLAGS)dnl
AC_SUBST(LIBS)dnl
-AC_DIVERT_POP()dnl
+m4_divert_pop()dnl
])# _AC_INIT_PREPARE
# _AC_INIT_NOTICE
# ---------------
define([_AC_INIT_NOTICE],
-[AC_DIVERT([NOTICE],
+[m4_divert([NOTICE],
[@%:@ Guess values for system-dependent variables and create Makefiles.
@%:@ Generated by Autoconf AC_ACVERSION[]dnl
ifset([AC_PACKAGE_STRING], [ for AC_PACKAGE_STRING]).])
ifset([AC_PACKAGE_BUGREPORT],
- [AC_DIVERT([NOTICE],
+ [m4_divert([NOTICE],
[@%:@
@%:@ Report bugs to <AC_PACKAGE_BUGREPORT>.])])
])
# AC_CONFIG_SRCDIR.
define([AC_INIT],
[ifval([$2], [_AC_INIT_PACKAGE($@)])dnl
-AC_DIVERT([BINSH], [@%:@! /bin/sh])
+m4_divert([BINSH], [@%:@! /bin/sh])
_AC_INIT_DEFAULTS()dnl
-AC_DIVERT_POP()dnl to BODY
+m4_divert_pop()dnl to BODY
_AC_INIT_PARSE_ARGS
_AC_INIT_SRCDIR
_AC_INIT_HELP
# generation. This is used by some tests, and let `autoconf' be used to
# generate other scripts than `configure'.
define([AC_PLAIN_SCRIPT],
-[AC_DIVERT_POP()])
+[m4_divert_pop()])
## ----------------------------- ##
# installed as `ggfoo'.
AC_DEFUN_ONCE([AC_ARG_PROGRAM],
[dnl Document the options.
-AC_DIVERT_PUSH([HELP_BEGIN])dnl
+m4_divert_push([HELP_BEGIN])dnl
Program names:
--program-prefix=PREFIX prepend PREFIX to installed program names
--program-suffix=SUFFIX append SUFFIX to installed program names
--program-transform-name=PROGRAM run sed PROGRAM on installed program names
-AC_DIVERT_POP()dnl
+m4_divert_pop()dnl
if test "$program_transform_name" = s,x,x,; then
program_transform_name=
else
# ------------------
AC_DEFUN_ONCE([AC_CANONICAL_BUILD],
[AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
-AC_DIVERT([HELP_CANON],
+m4_divert([HELP_CANON],
[[
System types:
--build=BUILD configure for building on BUILD [guessed]]])dnl
# -----------------
AC_DEFUN_ONCE([AC_CANONICAL_HOST],
[AC_REQUIRE([AC_CANONICAL_BUILD])dnl
-AC_DIVERT([HELP_CANON],
+m4_divert([HELP_CANON],
[[ --host=HOST build programs to run on HOST [BUILD]]])dnl
AC_CACHE_CHECK([host system type], [ac_cv_host],
[ac_cv_host_alias=$host_alias
AC_DEFUN_ONCE([AC_CANONICAL_TARGET],
[AC_REQUIRE([AC_CANONICAL_HOST])dnl
AC_BEFORE([$0], [AC_ARG_PROGRAM])dnl
-AC_DIVERT([HELP_CANON],
+m4_divert([HELP_CANON],
[[ --target=TARGET configure for building compilers for TARGET [HOST]]])dnl
AC_CACHE_CHECK([target system type], [ac_cv_target],
[dnl Set target_alias.
# -------------------------------------------------------
# Declare the DESTs depend upon their SOURCE1 etc.
define([_AC_CONFIG_DEPENDENCIES],
-[AC_DIVERT_PUSH([KILL])
+[m4_divert_push([KILL])
AC_FOREACH([AC_File], [$1],
[_AC_CONFIG_DEPENDENCY(patsubst(AC_File, [:], [,]))])
-AC_DIVERT_POP()dnl
+m4_divert_pop()dnl
])
# Note that this macro does not check if the list $[1] itself
# contains doubles.
define([_AC_CONFIG_UNIQUE],
-[AC_DIVERT_PUSH([KILL])
+[m4_divert_push([KILL])
AC_FOREACH([AC_File], [$1],
[pushdef([AC_Dest], patsubst(AC_File, [:.*]))
AC_CONFIG_IF_MEMBER(AC_Dest, [AC_LIST_HEADERS],
AC_CONFIG_IF_MEMBER(AC_Dest, [AC_LIST_FILES],
[AC_FATAL(`AC_Dest' [is already registered with AC_CONFIG_FILES or AC_OUTPUT.])])
popdef([AC_Dest])])
-AC_DIVERT_POP()dnl
+m4_divert_pop()dnl
])
# commands must be associated with a NAME, which should be thought
# as the name of a file the COMMANDS create.
AC_DEFUN([AC_CONFIG_COMMANDS],
-[AC_DIVERT_PUSH([KILL])
+[m4_divert_push([KILL])
_AC_CONFIG_UNIQUE([$1])
m4_append([AC_LIST_COMMANDS], [ $1])
[ ]patsubst(AC_Name, [:.*])[ ) $2 ;;
])])])
_AC_CONFIG_COMMANDS_INIT([$3])
-AC_DIVERT_POP()dnl
+m4_divert_pop()dnl
ac_config_commands="$ac_config_commands $1"
])dnl
# AC_LIST_HEADERS_COMMANDS
# esac
AC_DEFUN([AC_CONFIG_HEADERS],
-[AC_DIVERT_PUSH([KILL])
+[m4_divert_push([KILL])
_AC_CONFIG_UNIQUE([$1])
_AC_CONFIG_DEPENDENCIES([$1])
m4_append([AC_LIST_HEADERS], [ $1])
[ ]patsubst(AC_File, [:.*])[ ) $2 ;;
])])])
_AC_CONFIG_COMMANDS_INIT([$3])
-AC_DIVERT_POP()dnl
+m4_divert_pop()dnl
ac_config_headers="$ac_config_headers $1"
])dnl
# Reject DEST=., because it is makes it hard for ./config.status
# to guess the links to establish (`./config.status .').
AC_DEFUN([AC_CONFIG_LINKS],
-[AC_DIVERT_PUSH([KILL])
+[m4_divert_push([KILL])
_AC_CONFIG_UNIQUE([$1])
_AC_CONFIG_DEPENDENCIES([$1])
ifelse(regexp([$1], [^\.:\| \.:]), -1,,
[ ]patsubst(AC_File, [:.*])[ ) $2 ;;
])])])
_AC_CONFIG_COMMANDS_INIT([$3])
-AC_DIVERT_POP()dnl
+m4_divert_pop()dnl
ac_config_links="$ac_config_links $1"
])dnl
# AC_LIST_FILES_COMMANDS
# esac
AC_DEFUN([AC_CONFIG_FILES],
-[AC_DIVERT_PUSH([KILL])
+[m4_divert_push([KILL])
_AC_CONFIG_UNIQUE([$1])
_AC_CONFIG_DEPENDENCIES([$1])
m4_append([AC_LIST_FILES], [ $1])
[ ]patsubst(AC_File, [:.*])[ ) $2 ;;
])])])
_AC_CONFIG_COMMANDS_INIT([$3])
-AC_DIVERT_POP()dnl
+m4_divert_pop()dnl
ac_config_files="$ac_config_files $1"
])dnl
AC_VAR_INDIR_IFELSE([$1],
[AC_DIAGNOSE(syntax,
[$0: you should use literals])])
-AC_DIVERT([DEFAULTS], [ac_subdirs_all="$ac_subdirs_all $1"])
+m4_divert([DEFAULTS], [ac_subdirs_all="$ac_subdirs_all $1"])
AC_SUBST(subdirs, "$subdirs $1")dnl
])
# configuration. The introduction of AC_EXEEXT, enabled either by
# libtool or by CVS autoconf, have just made matters worse.
AC_DEFUN_ONCE([AC_NO_EXECUTABLES],
-[AC_DIVERT_PUSH([KILL])
+[m4_divert_push([KILL])
AC_BEFORE([$0], [_AC_LANG_COMPILER_WORKS])
AC_BEFORE([$0], [_AC_EXEEXT])
define([AC_LINK_IFELSE],
[AC_FATAL([All the tests involving linking were disabled by $0])])
-AC_DIVERT_POP()dnl
+m4_divert_pop()dnl
])# # AC_NO_EXECUTABLES
[$3])])])
+
+## ------------------------ ##
+## More diversion support. ##
+## ------------------------ ##
+
+
+# _m4_divert(DIBERSION-NAME or NUMBER)
+# ------------------------------------
+# If DIVERSION-NAME is the name of a diversion, return its number, otherwise
+# return makeNUMBER.
+define([_m4_divert],
+[ifdef([_m4_divert($1)],
+ [indir([_m4_divert($1)])],
+ [$1])])
+
+
+# m4_divert_push(DIVERSION-NAME)
+# ------------------------------
+# Change the diversion stream to DIVERSION-NAME, while stacking old values.
+define([m4_divert_push],
+[pushdef([_m4_divert_diversion], _m4_divert([$1]))dnl
+divert(_m4_divert_diversion)dnl
+])
+
+
+# m4_divert_pop
+# -------------
+# Change the diversion stream to its previous value, unstacking it.
+define([m4_divert_pop],
+[popdef([_m4_divert_diversion])dnl
+ifndef([_m4_divert_diversion],
+ [m4_fatal([too many m4_divert_pop])])dnl
+divert(_m4_divert_diversion)dnl
+])
+
+
+# m4_divert(DIVERSION-NAME, CONTENT)
+# ----------------------------------
+# Output CONTENT into DIVERSION-NAME (which may be a number actually).
+# An end of line is appended for free to CONTENT.
+define([m4_divert],
+[m4_divert_push([$1])dnl
+$2
+m4_divert_pop()dnl
+])
+
+
## ----------------- ##
## Text processing. ##
## ----------------- ##
[$3])])])
+
+## ------------------------ ##
+## More diversion support. ##
+## ------------------------ ##
+
+
+# _m4_divert(DIBERSION-NAME or NUMBER)
+# ------------------------------------
+# If DIVERSION-NAME is the name of a diversion, return its number, otherwise
+# return makeNUMBER.
+define([_m4_divert],
+[ifdef([_m4_divert($1)],
+ [indir([_m4_divert($1)])],
+ [$1])])
+
+
+# m4_divert_push(DIVERSION-NAME)
+# ------------------------------
+# Change the diversion stream to DIVERSION-NAME, while stacking old values.
+define([m4_divert_push],
+[pushdef([_m4_divert_diversion], _m4_divert([$1]))dnl
+divert(_m4_divert_diversion)dnl
+])
+
+
+# m4_divert_pop
+# -------------
+# Change the diversion stream to its previous value, unstacking it.
+define([m4_divert_pop],
+[popdef([_m4_divert_diversion])dnl
+ifndef([_m4_divert_diversion],
+ [m4_fatal([too many m4_divert_pop])])dnl
+divert(_m4_divert_diversion)dnl
+])
+
+
+# m4_divert(DIVERSION-NAME, CONTENT)
+# ----------------------------------
+# Output CONTENT into DIVERSION-NAME (which may be a number actually).
+# An end of line is appended for free to CONTENT.
+define([m4_divert],
+[m4_divert_push([$1])dnl
+$2
+m4_divert_pop()dnl
+])
+
+
## ----------------- ##
## Text processing. ##
## ----------------- ##
projects / thirdparty / autoconf.git / commitdiff
