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# This file is part of Autoconf. -*- Autoconf -*- # Parameterized macros. m4_define([_AC_COPYRIGHT_YEARS], [ Copyright (C) 1992-1996, 1998-2012 Free Software Foundation, Inc. ]) # This file is part of Autoconf. This program is free # software; you can redistribute it and/or modify it under the # terms of the GNU General Public License as published by the # Free Software Foundation, either version 3 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # Under Section 7 of GPL version 3, you are granted additional # permissions described in the Autoconf Configure Script Exception, # version 3.0, as published by the Free Software Foundation. # # You should have received a copy of the GNU General Public License # and a copy of the Autoconf Configure Script Exception along with # this program; see the files COPYINGv3 and COPYING.EXCEPTION # respectively. If not, see <http://www.gnu.org/licenses/>. # Written by David MacKenzie, with help from # Franc,ois Pinard, Karl Berry, Richard Pixley, Ian Lance Taylor, # Roland McGrath, Noah Friedman, david d zuhn, and many others. ## ---------------- ## ## The diversions. ## ## ---------------- ## # We heavily use m4's diversions both for the initializations and for # required macros (see AC_REQUIRE), because in both cases we have to # issue high in `configure' something which is discovered late. # # KILL is only used to suppress output. # # The layers of `configure'. We let m4 undivert them by itself, when # it reaches the end of `configure.ac'. # # - BINSH # #! /bin/sh # - HEADER-REVISION # Sent by AC_REVISION # - HEADER-COMMENT # Purpose of the script. # - HEADER-COPYRIGHT # Copyright notice(s) # - M4SH-INIT # Initialization of bottom layers. # # - DEFAULTS # early initializations (defaults) # - PARSE_ARGS # initialization code, option handling loop. # # - HELP_BEGIN # Handling `configure --help'. # - HELP_CANON # Help msg for AC_CANONICAL_* # - HELP_ENABLE # Help msg from AC_ARG_ENABLE. # - HELP_WITH # Help msg from AC_ARG_WITH. # - HELP_VAR # Help msg from AC_ARG_VAR. # - HELP_VAR_END # A small paragraph on the use of the variables. # - HELP_END # Tail of the handling of --help. # # - VERSION_BEGIN # Head of the handling of --version. # - VERSION_FSF # FSF copyright notice for --version. # - VERSION_USER # User copyright notice for --version. # - VERSION_END # Tail of the handling of --version. # # - SHELL_FN # Shell functions. # # - INIT_PREPARE # Tail of initialization code. # # - BODY # the tests and output code # # _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'! # # From M4sugar: # -1. KILL # 10000. GROW # # From M4sh: # 0. BINSH # 1. HEADER-REVISION # 2. HEADER-COMMENT # 3. HEADER-COPYRIGHT # 4. M4SH-INIT # 1000. BODY m4_define([_m4_divert(DEFAULTS)], 10) m4_define([_m4_divert(PARSE_ARGS)], 20) m4_define([_m4_divert(HELP_BEGIN)], 100) m4_define([_m4_divert(HELP_CANON)], 101) m4_define([_m4_divert(HELP_ENABLE)], 102) m4_define([_m4_divert(HELP_WITH)], 103) m4_define([_m4_divert(HELP_VAR)], 104) m4_define([_m4_divert(HELP_VAR_END)], 105) m4_define([_m4_divert(HELP_END)], 106) m4_define([_m4_divert(VERSION_BEGIN)], 200) m4_define([_m4_divert(VERSION_FSF)], 201) m4_define([_m4_divert(VERSION_USER)], 202) m4_define([_m4_divert(VERSION_END)], 203) m4_define([_m4_divert(SHELL_FN)], 250) m4_define([_m4_divert(INIT_PREPARE)], 300) # AC_DIVERT_PUSH(DIVERSION-NAME) # AC_DIVERT_POP # ------------------------------ m4_copy([m4_divert_push],[AC_DIVERT_PUSH]) m4_copy([m4_divert_pop], [AC_DIVERT_POP]) ## ------------------------------------ ## ## Defining/requiring Autoconf macros. ## ## ------------------------------------ ## # AC_DEFUN(NAME, EXPANSION) # AC_DEFUN_ONCE(NAME, EXPANSION) # AC_BEFORE(THIS-MACRO-NAME, CALLED-MACRO-NAME) # AC_REQUIRE(STRING) # AC_PROVIDE(MACRO-NAME) # AC_PROVIDE_IFELSE(MACRO-NAME, IF-PROVIDED, IF-NOT-PROVIDED) # ----------------------------------------------------------- m4_copy([m4_defun], [AC_DEFUN]) m4_copy([m4_defun_once], [AC_DEFUN_ONCE]) m4_copy([m4_before], [AC_BEFORE]) m4_copy([m4_require], [AC_REQUIRE]) m4_copy([m4_provide], [AC_PROVIDE]) m4_copy([m4_provide_if], [AC_PROVIDE_IFELSE]) # AC_OBSOLETE(THIS-MACRO-NAME, [SUGGESTION]) # ------------------------------------------ m4_define([AC_OBSOLETE], [AC_DIAGNOSE([obsolete], [$1 is obsolete$2])]) ## ----------------------------- ## ## Implementing shell functions. ## ## ----------------------------- ## # AC_REQUIRE_SHELL_FN(NAME-TO-CHECK, COMMENT, BODY, [DIVERSION = SHELL_FN] # ------------------------------------------------------------------------ # Same as AS_REQUIRE_SHELL_FN except that the default diversion comes # later in the script (speeding up configure --help and --version). AC_DEFUN([AC_REQUIRE_SHELL_FN], [AS_REQUIRE_SHELL_FN([$1], [$2], [$3], m4_default_quoted([$4], [SHELL_FN]))]) ## ----------------------------- ## ## Implementing Autoconf loops. ## ## ----------------------------- ## # AU::AC_FOREACH(VARIABLE, LIST, EXPRESSION) # ------------------------------------------ AU_DEFUN([AC_FOREACH], [[m4_foreach_w($@)]]) AC_DEFUN([AC_FOREACH], [m4_foreach_w($@)dnl AC_DIAGNOSE([obsolete], [The macro `AC_FOREACH' is obsolete. You should run autoupdate.])]) ## ----------------------------------- ## ## Helping macros to display strings. ## ## ----------------------------------- ## # AU::AC_HELP_STRING(LHS, RHS, [COLUMN]) # -------------------------------------- AU_ALIAS([AC_HELP_STRING], [AS_HELP_STRING]) ## ---------------------------------------------- ## ## Information on the package being Autoconf'ed. ## ## ---------------------------------------------- ## # It is suggested that the macros in this section appear before # AC_INIT in `configure.ac'. Nevertheless, this is just stylistic, # and from the implementation point of view, AC_INIT *must* be expanded # beforehand: it puts data in diversions which must appear before the # data provided by the macros of this section. # The solution is to require AC_INIT in each of these macros. AC_INIT # has the needed magic so that it can't be expanded twice. # _AC_INIT_LITERAL(STRING) # ------------------------ # Reject STRING if it contains newline, or if it cannot be used as-is # in single-quoted strings, double-quoted strings, and quoted and # unquoted here-docs. m4_define([_AC_INIT_LITERAL], [m4_if(m4_index(m4_translit([[$1]], [ ""], ['']), ['])AS_LITERAL_HEREDOC_IF([$1], [-]), [-1-], [], [m4_warn([syntax], [AC_INIT: not a literal: $1])])]) # _AC_INIT_PACKAGE(PACKAGE-NAME, VERSION, BUG-REPORT, [TARNAME], [URL]) # --------------------------------------------------------------------- m4_define([_AC_INIT_PACKAGE], [_AC_INIT_LITERAL([$1]) _AC_INIT_LITERAL([$2]) _AC_INIT_LITERAL([$3]) m4_ifndef([AC_PACKAGE_NAME], [m4_define([AC_PACKAGE_NAME], [$1])]) m4_ifndef([AC_PACKAGE_TARNAME], [m4_define([AC_PACKAGE_TARNAME], m4_default([$4], [m4_bpatsubst(m4_tolower(m4_bpatsubst([[$1]], [GNU ])), [[^_abcdefghijklmnopqrstuvwxyz0123456789]], [-])]))]) m4_ifndef([AC_PACKAGE_VERSION], [m4_define([AC_PACKAGE_VERSION], [$2])]) m4_ifndef([AC_PACKAGE_STRING], [m4_define([AC_PACKAGE_STRING], [$1 $2])]) m4_ifndef([AC_PACKAGE_BUGREPORT], [m4_define([AC_PACKAGE_BUGREPORT], [$3])]) m4_ifndef([AC_PACKAGE_URL], [m4_define([AC_PACKAGE_URL], m4_if([$5], [], [m4_if(m4_index([$1], [GNU ]), [0], [[http://www.gnu.org/software/]m4_defn([AC_PACKAGE_TARNAME])[/]])], [[$5]]))]) ]) # AC_COPYRIGHT(TEXT, [VERSION-DIVERSION = VERSION_USER], # [FILTER = m4_newline]) # ------------------------------------------------------ # Emit TEXT, a copyright notice, in the top of `configure' and in # --version output. Macros in TEXT are evaluated once. Process # the --version output through FILTER (m4_newline, m4_do, and # m4_copyright_condense are common filters). m4_define([AC_COPYRIGHT], [AS_COPYRIGHT([$1])[]]dnl [m4_divert_text(m4_default_quoted([$2], [VERSION_USER]), [m4_default([$3], [m4_newline])([$1])])])# AC_COPYRIGHT # AC_REVISION(REVISION-INFO) # -------------------------- # The second quote in the translit is just to cope with font-lock-mode # which sees the opening of a string. m4_define([AC_REVISION], [m4_divert_text([HEADER-REVISION], [@%:@ From __file__ m4_translit([$1], [$""]).])dnl ]) ## ---------------------------------------- ## ## Requirements over the Autoconf version. ## ## ---------------------------------------- ## # AU::AC_PREREQ(VERSION) # ---------------------- # Update this `AC_PREREQ' statement to require the current version of # Autoconf. But fail if ever this autoupdate is too old. # # Note that `m4_defn([m4_PACKAGE_VERSION])' below are expanded before # calling `AU_DEFUN', i.e., it is hard coded. Otherwise it would be # quite complex for autoupdate to import the value of # `m4_PACKAGE_VERSION'. We could `AU_DEFUN' `m4_PACKAGE_VERSION', but # this would replace all its occurrences with the current version of # Autoconf, which is certainly not what the user intended. AU_DEFUN([AC_PREREQ], [m4_version_prereq([$1])[]dnl [AC_PREREQ(]]m4_dquote(m4_dquote(m4_defn([m4_PACKAGE_VERSION])))[[)]]) # AC_PREREQ(VERSION) # ------------------ # Complain and exit if the Autoconf version is less than VERSION. m4_undefine([AC_PREREQ]) m4_copy([m4_version_prereq], [AC_PREREQ]) # AC_AUTOCONF_VERSION # ------------------- # The current version of Autoconf parsing this file. m4_copy([m4_PACKAGE_VERSION], [AC_AUTOCONF_VERSION]) ## ---------------- ## ## Initialization. ## ## ---------------- ## # All the following macros are used by AC_INIT. Ideally, they should # be presented in the order in which they are output. Please, help us # sorting it, or at least, don't augment the entropy. # _AC_INIT_NOTICE # --------------- # Provide useful headers; override the HEADER-COMMENT created by M4sh. m4_define([_AC_INIT_NOTICE], [m4_cleardivert([HEADER-COMMENT])]dnl [m4_divert_text([HEADER-COMMENT], [@%:@ Guess values for system-dependent variables and create Makefiles. @%:@ Generated by m4_PACKAGE_STRING[]dnl m4_ifset([AC_PACKAGE_STRING], [ for AC_PACKAGE_STRING]).]) m4_ifset([AC_PACKAGE_BUGREPORT], [m4_divert_text([HEADER-COMMENT], [@%:@ @%:@ Report bugs to <AC_PACKAGE_BUGREPORT>.])]) ]) # _AC_INIT_COPYRIGHT # ------------------ # We dump to VERSION_FSF to make sure we are inserted before the # user copyrights, and after the setup of the --version handling. m4_define([_AC_INIT_COPYRIGHT], [AC_COPYRIGHT(m4_defn([_AC_COPYRIGHT_YEARS]), [VERSION_FSF], [ m4_copyright_condense])dnl AC_COPYRIGHT( [This configure script is free software; the Free Software Foundation gives unlimited permission to copy, distribute and modify it.], [VERSION_FSF], [m4_echo])]) # File Descriptors # ---------------- # Set up the file descriptors used by `configure'. # File descriptor usage: # 0 standard input (/dev/null) # 1 file creation # 2 errors and warnings # AS_MESSAGE_LOG_FD compiler messages saved in config.log # AS_MESSAGE_FD checking for... messages and results # AS_ORIGINAL_STDIN_FD original standard input (still open) # # stdin is /dev/null because checks that run programs may # inadvertently run interactive ones, which would stop configuration # until someone typed an EOF. m4_define([AS_MESSAGE_FD], 6) m4_define([AS_ORIGINAL_STDIN_FD], 7) # That's how they used to be named. 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If VALUE is given # assign it to VARIABLE. Use `""' if you want to set VARIABLE to an # empty value, not an empty second argument. # m4_define([AC_SUBST], [AS_IDENTIFIER_IF([$1], [], [m4_fatal([$0: `$1' is not a valid shell variable name])])]dnl [AC_SUBST_TRACE([$1])]dnl [m4_pattern_allow([^$1$])]dnl [m4_ifvaln([$2], [$1=$2])[]]dnl [m4_set_add([_AC_SUBST_VARS], [$1])])# AC_SUBST # AC_SUBST_FILE(VARIABLE) # ----------------------- # Read the comments of the preceding macro. m4_define([AC_SUBST_FILE], [m4_pattern_allow([^$1$])dnl m4_append_uniq([_AC_SUBST_FILES], [$1], [ ])]) ## --------------------------------------- ## ## Printing messages at autoconf runtime. ## ## --------------------------------------- ## # In fact, I think we should promote the use of m4_warn and m4_fatal # directly. This will also avoid to some people to get it wrong # between AC_FATAL and AC_MSG_ERROR. # AC_DIAGNOSE(CATEGORY, MESSAGE) # AC_FATAL(MESSAGE, [EXIT-STATUS]) # -------------------------------- m4_define([AC_DIAGNOSE], [m4_warn($@)]) m4_define([AC_FATAL], [m4_fatal($@)]) # AC_WARNING(MESSAGE) # ------------------- # Report a MESSAGE to the user of autoconf if `-W' or `-W all' was # specified. m4_define([AC_WARNING], [AC_DIAGNOSE([syntax], [$1])]) ## ---------------------------------------- ## ## Printing messages at configure runtime. ## ## ---------------------------------------- ## # AC_MSG_CHECKING(FEATURE) # ------------------------ m4_define([AC_MSG_CHECKING], [{ _AS_ECHO_LOG([checking $1]) _AS_ECHO_N([checking $1... ]); }dnl ]) # AC_MSG_RESULT(RESULT) # --------------------- m4_define([AC_MSG_RESULT], [{ _AS_ECHO_LOG([result: $1]) _AS_ECHO([$1]); }dnl ]) # AC_MSG_WARN(PROBLEM) # AC_MSG_NOTICE(STRING) # AC_MSG_ERROR(ERROR, [EXIT-STATUS = 1]) # AC_MSG_FAILURE(ERROR, [EXIT-STATUS = 1]) # ---------------------------------------- m4_copy([AS_WARN], [AC_MSG_WARN]) m4_copy([AS_MESSAGE], [AC_MSG_NOTICE]) m4_copy([AS_ERROR], [AC_MSG_ERROR]) m4_define([AC_MSG_FAILURE], [{ AS_MESSAGE([error: in `$ac_pwd':], 2) AC_MSG_ERROR([$1 See `config.log' for more details], [$2]); }]) # _AC_MSG_LOG_CONFTEST # -------------------- m4_define([_AC_MSG_LOG_CONFTEST], [AS_ECHO(["$as_me: failed program was:"]) >&AS_MESSAGE_LOG_FD sed 's/^/| /' conftest.$ac_ext >&AS_MESSAGE_LOG_FD ]) # AU::AC_CHECKING(FEATURE) # ------------------------ AU_DEFUN([AC_CHECKING], [AS_MESSAGE([checking $1...])]) # AU::AC_MSG_RESULT_UNQUOTED(RESULT) # ---------------------------------- # No escaping, so it performed also backtick substitution. AU_DEFUN([AC_MSG_RESULT_UNQUOTED], [_AS_ECHO_UNQUOTED([$as_me:${as_lineno-$LINENO}: result: $1], AS_MESSAGE_LOG_FD) _AS_ECHO_UNQUOTED([$1])[]dnl ]) # AU::AC_VERBOSE(STRING) # ---------------------- AU_ALIAS([AC_VERBOSE], [AC_MSG_RESULT]) ## ---------------------------- ## ## Compiler-running mechanics. ## ## ---------------------------- ## # _AC_RUN_LOG(COMMAND, LOG-COMMANDS) # ---------------------------------- # Eval COMMAND, save the exit status in ac_status, and log it. The return # code is 0 if COMMAND succeeded, so that it can be used directly in AS_IF # constructs. AC_DEFUN([_AC_RUN_LOG], [{ { $2; } >&AS_MESSAGE_LOG_FD ($1) 2>&AS_MESSAGE_LOG_FD ac_status=$? _AS_ECHO_LOG([\$? = $ac_status]) test $ac_status = 0; }]) # _AC_RUN_LOG_STDERR(COMMAND, LOG-COMMANDS) # ----------------------------------------- # Run COMMAND, save its stderr into conftest.err, save the exit status # in ac_status, and log it. Don't forget to clean up conftest.err after # use. # Note that when tracing, most shells will leave the traces in stderr # starting with "+": that's what this macro tries to address. # The return code is 0 if COMMAND succeeded, so that it can be used directly # in AS_IF constructs. AC_DEFUN([_AC_RUN_LOG_STDERR], [{ { $2; } >&AS_MESSAGE_LOG_FD ($1) 2>conftest.err ac_status=$? if test -s conftest.err; then grep -v '^ *+' conftest.err >conftest.er1 cat conftest.er1 >&AS_MESSAGE_LOG_FD mv -f conftest.er1 conftest.err fi _AS_ECHO_LOG([\$? = $ac_status]) test $ac_status = 0; }]) # _AC_RUN_LOG_LIMIT(COMMAND, LOG-COMMANDS, [LINES]) # ------------------------------------------------- # Like _AC_RUN_LOG, but only log LINES lines from stderr, # defaulting to 10 lines. AC_DEFUN([_AC_RUN_LOG_LIMIT], [{ { $2; } >&AS_MESSAGE_LOG_FD ($1) 2>conftest.err ac_status=$? if test -s conftest.err; then sed 'm4_default([$3], [10])a\ ... rest of stderr output deleted ... m4_default([$3], [10])q' conftest.err >conftest.er1 cat conftest.er1 >&AS_MESSAGE_LOG_FD fi rm -f conftest.er1 conftest.err _AS_ECHO_LOG([\$? = $ac_status]) test $ac_status = 0; }]) # _AC_DO_ECHO(COMMAND) # -------------------- # Echo COMMAND. This is designed to be used just before evaluating COMMAND. AC_DEFUN([_AC_DO_ECHO], [m4_if([$1], [$ac_try], [], [ac_try="$1" ])]dnl dnl If the string contains '\"', '`', or '\\', then just echo it rather dnl than expanding it. 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[[case "(($ac_try" in *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; *) ac_try_echo=$ac_try;; esac eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""] AS_ECHO(["$ac_try_echo"])]) # _AC_DO(COMMAND) # --------------- # Eval COMMAND, save the exit status in ac_status, and log it. # For internal use only. AC_DEFUN([_AC_DO], [_AC_RUN_LOG([eval "$1"], [_AC_DO_ECHO([$1])])]) # _AC_DO_STDERR(COMMAND) # ---------------------- # Like _AC_RUN_LOG_STDERR, but eval (instead of running) COMMAND. AC_DEFUN([_AC_DO_STDERR], [_AC_RUN_LOG_STDERR([eval "$1"], [_AC_DO_ECHO([$1])])]) # _AC_DO_VAR(VARIABLE) # -------------------- # Evaluate "$VARIABLE", which should be a valid shell command. # The purpose of this macro is to write "configure:123: command line" # into config.log for every test run. AC_DEFUN([_AC_DO_VAR], [_AC_DO([$$1])]) # _AC_DO_TOKENS(COMMAND) # ---------------------- # Like _AC_DO_VAR, but execute COMMAND instead, where COMMAND is a series of # tokens of the shell command language. AC_DEFUN([_AC_DO_TOKENS], [{ ac_try='$1' _AC_DO([$ac_try]); }]) # _AC_DO_LIMIT(COMMAND, [LINES]) # ------------------------------ # Like _AC_DO, but limit the amount of stderr lines logged to LINES. # For internal use only. AC_DEFUN([_AC_DO_LIMIT], [_AC_RUN_LOG_LIMIT([eval "$1"], [_AC_DO_ECHO([$1])], [$2])]) # _AC_EVAL(COMMAND) # ----------------- # Eval COMMAND, save the exit status in ac_status, and log it. # Unlike _AC_DO, this macro mishandles quoted arguments in some cases. # It is present only for backward compatibility with previous Autoconf versions. AC_DEFUN([_AC_EVAL], [_AC_RUN_LOG([eval $1], [eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$1\""])]) # _AC_EVAL_STDERR(COMMAND) # ------------------------ # Like _AC_RUN_LOG_STDERR, but eval (instead of running) COMMAND. # Unlike _AC_DO_STDERR, this macro mishandles quoted arguments in some cases. # It is present only for backward compatibility with previous Autoconf versions. AC_DEFUN([_AC_EVAL_STDERR], [_AC_RUN_LOG_STDERR([eval $1], [eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$1\""])]) # AC_TRY_EVAL(VARIABLE) # --------------------- # Evaluate $VARIABLE, which should be a valid shell command. # The purpose of this macro is to write "configure:123: command line" # into config.log for every test run. # # The AC_TRY_EVAL and AC_TRY_COMMAND macros are dangerous and # undocumented, and should not be used. # They may be removed or their API changed in a future release. # Autoconf itself no longer uses these two macros; they are present # only for backward compatibility with previous versions of Autoconf. # Not every shell command will work due to problems with eval # and quoting, and the rules for exactly what does work are tricky. # Worse, due to double-expansion during evaluation, arbitrary unintended # shell commands could be executed in some situations. AC_DEFUN([AC_TRY_EVAL], [_AC_EVAL([$$1])]) # AC_TRY_COMMAND(COMMAND) # ----------------------- # Like AC_TRY_EVAL, but execute COMMAND instead, where COMMAND is a series of # tokens of the shell command language. # This macro should not be used; see the comments under AC_TRY_EVAL for why. AC_DEFUN([AC_TRY_COMMAND], [{ ac_try='$1' _AC_EVAL([$ac_try]); }]) # AC_RUN_LOG(COMMAND) # ------------------- AC_DEFUN([AC_RUN_LOG], [_AC_RUN_LOG([$1], [AS_ECHO(["$as_me:${as_lineno-$LINENO}: AS_ESCAPE([$1])"])])]) ## ------------------------ ## ## Examining declarations. ## ## ------------------------ ## # _AC_PREPROC_IFELSE_BODY # ----------------------- # Shell function body for _AC_PREPROC_IFELSE. m4_define([_AC_PREPROC_IFELSE_BODY], [ AS_LINENO_PUSH([$[]1]) AS_IF([_AC_DO_STDERR([$ac_cpp conftest.$ac_ext]) > conftest.i && { test -z "$ac_[]_AC_LANG_ABBREV[]_preproc_warn_flag$ac_[]_AC_LANG_ABBREV[]_werror_flag" || test ! -s conftest.err }], [ac_retval=0], [_AC_MSG_LOG_CONFTEST ac_retval=1]) AS_LINENO_POP AS_SET_STATUS([$ac_retval]) ])# _AC_PREPROC_IFELSE_BODY # _AC_PREPROC_IFELSE(PROGRAM, [ACTION-IF-TRUE], [ACTION-IF-FALSE]) # ---------------------------------------------------------------- # Try to preprocess PROGRAM. # # This macro can be used during the selection of a preprocessor. # eval is necessary to expand ac_cpp. AC_DEFUN([_AC_PREPROC_IFELSE], [AC_REQUIRE_SHELL_FN([ac_fn_]_AC_LANG_ABBREV[_try_cpp], [AS_FUNCTION_DESCRIBE([ac_fn_]_AC_LANG_ABBREV[_try_cpp], [LINENO], [Try to preprocess conftest.$ac_ext, and return whether this succeeded.])], [$0_BODY])]dnl [m4_ifvaln([$1], [AC_LANG_CONFTEST([$1])])]dnl [AS_IF([ac_fn_[]_AC_LANG_ABBREV[]_try_cpp "$LINENO"], [$2], [$3]) rm -f conftest.err conftest.i[]m4_ifval([$1], [ conftest.$ac_ext])[]dnl ])# _AC_PREPROC_IFELSE # AC_PREPROC_IFELSE(PROGRAM, [ACTION-IF-TRUE], [ACTION-IF-FALSE]) # --------------------------------------------------------------- # Try to preprocess PROGRAM. Requires that the preprocessor for the # current language was checked for, hence do not use this macro in macros # looking for a preprocessor. AC_DEFUN([AC_PREPROC_IFELSE], [AC_LANG_PREPROC_REQUIRE()dnl _AC_PREPROC_IFELSE($@)]) # AC_TRY_CPP(INCLUDES, [ACTION-IF-TRUE], [ACTION-IF-FALSE]) # --------------------------------------------------------- # AC_TRY_CPP is used to check whether particular header files exist. # (But it actually tests whether INCLUDES produces no CPP errors.) # # INCLUDES are not defaulted and are double quoted. AU_DEFUN([AC_TRY_CPP], [AC_PREPROC_IFELSE([AC_LANG_SOURCE([[$1]])], [$2], [$3])]) # AC_EGREP_CPP(PATTERN, PROGRAM, # [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND]) # ------------------------------------------------------ # Because this macro is used by AC_PROG_GCC_TRADITIONAL, which must # come early, it is not included in AC_BEFORE checks. AC_DEFUN([AC_EGREP_CPP], [AC_LANG_PREPROC_REQUIRE()dnl AC_REQUIRE([AC_PROG_EGREP])dnl AC_LANG_CONFTEST([AC_LANG_SOURCE([[$2]])]) AS_IF([dnl eval is necessary to expand ac_cpp. dnl Ultrix and Pyramid sh refuse to redirect output of eval, so use subshell. (eval "$ac_cpp conftest.$ac_ext") 2>&AS_MESSAGE_LOG_FD | dnl Quote $1 to prevent m4 from eating character classes $EGREP "[$1]" >/dev/null 2>&1], [$3], [$4]) rm -f conftest* ])# AC_EGREP_CPP # AC_EGREP_HEADER(PATTERN, HEADER-FILE, # [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND]) # --------------------------------------------------------- AC_DEFUN([AC_EGREP_HEADER], [AC_EGREP_CPP([$1], [#include <$2> ], [$3], [$4])]) ## ------------------ ## ## Examining syntax. ## ## ------------------ ## # _AC_COMPILE_IFELSE_BODY # ----------------------- # Shell function body for _AC_COMPILE_IFELSE. m4_define([_AC_COMPILE_IFELSE_BODY], [ AS_LINENO_PUSH([$[]1]) rm -f conftest.$ac_objext AS_IF([_AC_DO_STDERR($ac_compile) && { test -z "$ac_[]_AC_LANG_ABBREV[]_werror_flag" || test ! -s conftest.err } && test -s conftest.$ac_objext], [ac_retval=0], [_AC_MSG_LOG_CONFTEST ac_retval=1]) AS_LINENO_POP AS_SET_STATUS([$ac_retval]) ])# _AC_COMPILE_IFELSE_BODY # _AC_COMPILE_IFELSE(PROGRAM, [ACTION-IF-TRUE], [ACTION-IF-FALSE]) # ---------------------------------------------------------------- # Try to compile PROGRAM. # This macro can be used during the selection of a compiler. AC_DEFUN([_AC_COMPILE_IFELSE], [AC_REQUIRE_SHELL_FN([ac_fn_]_AC_LANG_ABBREV[_try_compile], [AS_FUNCTION_DESCRIBE([ac_fn_]_AC_LANG_ABBREV[_try_compile], [LINENO], [Try to compile conftest.$ac_ext, and return whether this succeeded.])], [$0_BODY])]dnl [m4_ifvaln([$1], [AC_LANG_CONFTEST([$1])])]dnl [AS_IF([ac_fn_[]_AC_LANG_ABBREV[]_try_compile "$LINENO"], [$2], [$3]) rm -f core conftest.err conftest.$ac_objext[]m4_ifval([$1], [ conftest.$ac_ext])[]dnl ])# _AC_COMPILE_IFELSE # AC_COMPILE_IFELSE(PROGRAM, [ACTION-IF-TRUE], [ACTION-IF-FALSE]) # --------------------------------------------------------------- # Try to compile PROGRAM. Requires that the compiler for the current # language was checked for, hence do not use this macro in macros looking # for a compiler. AC_DEFUN([AC_COMPILE_IFELSE], [AC_LANG_COMPILER_REQUIRE()dnl _AC_COMPILE_IFELSE($@)]) # AC_TRY_COMPILE(INCLUDES, FUNCTION-BODY, # [ACTION-IF-TRUE], [ACTION-IF-FALSE]) # --------------------------------------------------- AU_DEFUN([AC_TRY_COMPILE], [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[$1]], [[$2]])], [$3], [$4])]) ## --------------------- ## ## Examining libraries. ## ## --------------------- ## # _AC_LINK_IFELSE_BODY # -------------------- # Shell function body for _AC_LINK_IFELSE. m4_define([_AC_LINK_IFELSE_BODY], [ AS_LINENO_PUSH([$[]1]) rm -f conftest.$ac_objext conftest$ac_exeext AS_IF([_AC_DO_STDERR($ac_link) && { test -z "$ac_[]_AC_LANG_ABBREV[]_werror_flag" || test ! -s conftest.err } && test -s conftest$ac_exeext && { test "$cross_compiling" = yes || AS_TEST_X([conftest$ac_exeext]) }], [ac_retval=0], [_AC_MSG_LOG_CONFTEST ac_retval=1]) # Delete the IPA/IPO (Inter Procedural Analysis/Optimization) information # created by the PGI compiler (conftest_ipa8_conftest.oo), as it would # interfere with the next link command; also delete a directory that is # left behind by Apple's compiler. We do this before executing the actions. rm -rf conftest.dSYM conftest_ipa8_conftest.oo AS_LINENO_POP AS_SET_STATUS([$ac_retval]) ])# _AC_LINK_IFELSE_BODY # _AC_LINK_IFELSE(PROGRAM, [ACTION-IF-TRUE], [ACTION-IF-FALSE]) # ------------------------------------------------------------- # Try to link PROGRAM. # This macro can be used during the selection of a compiler. # # Test that resulting file is executable; see the problem reported by mwoehlke # in <http://lists.gnu.org/archive/html/bug-coreutils/2006-10/msg00048.html>. # But skip the test when cross-compiling, to prevent problems like the one # reported by Chris Johns in # <http://lists.gnu.org/archive/html/autoconf/2007-03/msg00085.html>. # AC_DEFUN([_AC_LINK_IFELSE], [AC_REQUIRE_SHELL_FN([ac_fn_]_AC_LANG_ABBREV[_try_link], [AS_FUNCTION_DESCRIBE([ac_fn_]_AC_LANG_ABBREV[_try_link], [LINENO], [Try to link conftest.$ac_ext, and return whether this succeeded.])], [$0_BODY])]dnl [m4_ifvaln([$1], [AC_LANG_CONFTEST([$1])])]dnl [AS_IF([ac_fn_[]_AC_LANG_ABBREV[]_try_link "$LINENO"], [$2], [$3]) rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext[]m4_ifval([$1], [ conftest.$ac_ext])[]dnl ])# _AC_LINK_IFELSE # AC_LINK_IFELSE(PROGRAM, [ACTION-IF-TRUE], [ACTION-IF-FALSE]) # ------------------------------------------------------------ # Try to link PROGRAM. Requires that the compiler for the current # language was checked for, hence do not use this macro in macros looking # for a compiler. AC_DEFUN([AC_LINK_IFELSE], [AC_LANG_COMPILER_REQUIRE()dnl _AC_LINK_IFELSE($@)]) # AC_TRY_LINK(INCLUDES, FUNCTION-BODY, # [ACTION-IF-TRUE], [ACTION-IF-FALSE]) # ------------------------------------------------ # Contrarily to AC_LINK_IFELSE, this macro double quote its first two args. AU_DEFUN([AC_TRY_LINK], [AC_LINK_IFELSE([AC_LANG_PROGRAM([[$1]], [[$2]])], [$3], [$4])]) # AC_COMPILE_CHECK(ECHO-TEXT, INCLUDES, FUNCTION-BODY, # ACTION-IF-TRUE, [ACTION-IF-FALSE]) # --------------------------------------------------- AU_DEFUN([AC_COMPILE_CHECK], [m4_ifvaln([$1], [AC_MSG_CHECKING([for $1])])dnl AC_LINK_IFELSE([AC_LANG_PROGRAM([[$2]], [[$3]])], [$4], [$5])]) ## ------------------------------- ## ## Checking for runtime features. ## ## ------------------------------- ## # _AC_RUN_IFELSE_BODY # ------------------- # Shell function body for _AC_RUN_IFELSE. m4_define([_AC_RUN_IFELSE_BODY], [ AS_LINENO_PUSH([$[]1]) AS_IF([_AC_DO_VAR(ac_link) && _AC_DO_TOKENS(./conftest$ac_exeext)], [ac_retval=0], [AS_ECHO(["$as_me: program exited with status $ac_status"]) >&AS_MESSAGE_LOG_FD _AC_MSG_LOG_CONFTEST ac_retval=$ac_status]) rm -rf conftest.dSYM conftest_ipa8_conftest.oo AS_LINENO_POP AS_SET_STATUS([$ac_retval]) ])# _AC_RUN_IFELSE_BODY # _AC_RUN_IFELSE(PROGRAM, [ACTION-IF-TRUE], [ACTION-IF-FALSE]) # ------------------------------------------------------------ # Compile, link, and run. # This macro can be used during the selection of a compiler. # We also remove conftest.o as if the compilation fails, some compilers # don't remove it. We remove gmon.out and bb.out, which may be # created during the run if the program is built with profiling support. AC_DEFUN([_AC_RUN_IFELSE], [AC_REQUIRE_SHELL_FN([ac_fn_]_AC_LANG_ABBREV[_try_run], [AS_FUNCTION_DESCRIBE([ac_fn_]_AC_LANG_ABBREV[_try_run], [LINENO], [Try to link conftest.$ac_ext, and return whether this succeeded. Assumes that executables *can* be run.])], [$0_BODY])]dnl [m4_ifvaln([$1], [AC_LANG_CONFTEST([$1])])]dnl [AS_IF([ac_fn_[]_AC_LANG_ABBREV[]_try_run "$LINENO"], [$2], [$3]) rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \ conftest.$ac_objext conftest.beam[]m4_ifval([$1], [ conftest.$ac_ext])[]dnl ])# _AC_RUN_IFELSE # AC_RUN_IFELSE(PROGRAM, # [ACTION-IF-TRUE], [ACTION-IF-FALSE], # [ACTION-IF-CROSS-COMPILING = RUNTIME-ERROR]) # ---------------------------------------------------------- # Compile, link, and run. Requires that the compiler for the current # language was checked for, hence do not use this macro in macros looking # for a compiler. AC_DEFUN([AC_RUN_IFELSE], [AC_LANG_COMPILER_REQUIRE()dnl m4_ifval([$4], [], [AC_DIAGNOSE([cross], [$0 called without default to allow cross compiling])])dnl AS_IF([test "$cross_compiling" = yes], [m4_default([$4], [AC_MSG_FAILURE([cannot run test program while cross compiling])])], [_AC_RUN_IFELSE($@)]) ]) # AC_TRY_RUN(PROGRAM, # [ACTION-IF-TRUE], [ACTION-IF-FALSE], # [ACTION-IF-CROSS-COMPILING = RUNTIME-ERROR]) # ------------------------------------------------------- AU_DEFUN([AC_TRY_RUN], [AC_RUN_IFELSE([AC_LANG_SOURCE([[$1]])], [$2], [$3], [$4])]) ## ------------------------------------- ## ## Checking for the existence of files. ## ## ------------------------------------- ## # AC_CHECK_FILE(FILE, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND]) # ------------------------------------------------------------- # # Check for the existence of FILE. AC_DEFUN([AC_CHECK_FILE], [AC_DIAGNOSE([cross], [cannot check for file existence when cross compiling])dnl AS_VAR_PUSHDEF([ac_File], [ac_cv_file_$1])dnl AC_CACHE_CHECK([for $1], [ac_File], [test "$cross_compiling" = yes && AC_MSG_ERROR([cannot check for file existence when cross compiling]) if test -r "$1"; then AS_VAR_SET([ac_File], [yes]) else AS_VAR_SET([ac_File], [no]) fi]) AS_VAR_IF([ac_File], [yes], [$2], [$3]) AS_VAR_POPDEF([ac_File])dnl ])# AC_CHECK_FILE # _AC_CHECK_FILES(FILE) # --------------------- # Helper to AC_CHECK_FILES, which generates two of the three arguments # to AC_CHECK_FILE based on FILE. m4_define([_AC_CHECK_FILES], [[$1], [AC_DEFINE_UNQUOTED(AS_TR_CPP([HAVE_$1]), [1], [Define to 1 if you have the file `$1'.])]]) # AC_CHECK_FILES(FILE..., [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND]) # ----------------------------------------------------------------- # For each word in the whitespace-separated FILE list, perform either # ACTION-IF-FOUND or ACTION-IF-NOT-FOUND. For files that exist, also # provide the preprocessor variable HAVE_FILE. AC_DEFUN([AC_CHECK_FILES], [m4_map_args_w([$1], [AC_CHECK_FILE(_$0(], [)[$2], [$3])])]) ## ------------------------------- ## ## Checking for declared symbols. ## ## ------------------------------- ## # _AC_CHECK_DECL_BODY # ------------------- # Shell function body for AC_CHECK_DECL. m4_define([_AC_CHECK_DECL_BODY], [ AS_LINENO_PUSH([$[]1]) [as_decl_name=`echo $][2|sed 's/ *(.*//'`] [as_decl_use=`echo $][2|sed -e 's/(/((/' -e 's/)/) 0&/' -e 's/,/) 0& (/g'`] AC_CACHE_CHECK([whether $as_decl_name is declared], [$[]3], [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([$[]4], [@%:@ifndef $[]as_decl_name @%:@ifdef __cplusplus (void) $[]as_decl_use; @%:@else (void) $[]as_decl_name; @%:@endif @%:@endif ])], [AS_VAR_SET([$[]3], [yes])], [AS_VAR_SET([$[]3], [no])])]) AS_LINENO_POP ])# _AC_CHECK_DECL_BODY # AC_CHECK_DECL(SYMBOL, # [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND], # [INCLUDES = DEFAULT-INCLUDES]) # ------------------------------------------------------- # Check whether SYMBOL (a function, variable, or constant) is declared. AC_DEFUN([AC_CHECK_DECL], [AC_REQUIRE_SHELL_FN([ac_fn_]_AC_LANG_ABBREV[_check_decl], [AS_FUNCTION_DESCRIBE([ac_fn_]_AC_LANG_ABBREV[_check_decl], [LINENO SYMBOL VAR INCLUDES], [Tests whether SYMBOL is declared in INCLUDES, setting cache variable VAR accordingly.])], [_$0_BODY])]dnl [AS_VAR_PUSHDEF([ac_Symbol], [ac_cv_have_decl_$1])]dnl [ac_fn_[]_AC_LANG_ABBREV[]_check_decl ]dnl ["$LINENO" "$1" "ac_Symbol" "AS_ESCAPE([AC_INCLUDES_DEFAULT([$4])], [""])" AS_VAR_IF([ac_Symbol], [yes], [$2], [$3]) AS_VAR_POPDEF([ac_Symbol])dnl ])# AC_CHECK_DECL # _AC_CHECK_DECLS(SYMBOL, ACTION-IF_FOUND, ACTION-IF-NOT-FOUND, # INCLUDES) # ------------------------------------------------------------- # Helper to AC_CHECK_DECLS, which generates the check for a single # SYMBOL with INCLUDES, performs the AC_DEFINE, then expands # ACTION-IF-FOUND or ACTION-IF-NOT-FOUND. m4_define([_AC_CHECK_DECLS], [AC_CHECK_DECL([$1], [ac_have_decl=1], [ac_have_decl=0], [$4])]dnl [AC_DEFINE_UNQUOTED(AS_TR_CPP(m4_bpatsubst(HAVE_DECL_[$1],[ *(.*])), [$ac_have_decl], [Define to 1 if you have the declaration of `$1', and to 0 if you don't.])]dnl [m4_ifvaln([$2$3], [AS_IF([test $ac_have_decl = 1], [$2], [$3])])]) # AC_CHECK_DECLS(SYMBOLS, # [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND], # [INCLUDES = DEFAULT-INCLUDES]) # -------------------------------------------------------- # Defines HAVE_DECL_SYMBOL to 1 if declared, 0 otherwise. See the # documentation for a detailed explanation of this difference with # other AC_CHECK_*S macros. SYMBOLS is an m4 list. AC_DEFUN([AC_CHECK_DECLS], [m4_map_args_sep([_$0(], [, [$2], [$3], [$4])], [], $1)]) # _AC_CHECK_DECL_ONCE(SYMBOL) # --------------------------- # Check for a single SYMBOL once. m4_define([_AC_CHECK_DECL_ONCE], [AC_DEFUN([_AC_Check_Decl_$1], [_AC_CHECK_DECLS([$1])])]dnl [AC_REQUIRE([_AC_Check_Decl_$1])]) # AC_CHECK_DECLS_ONCE(SYMBOLS) # ---------------------------- # Like AC_CHECK_DECLS(SYMBOLS), but do it at most once. AC_DEFUN([AC_CHECK_DECLS_ONCE], [m4_map_args_sep([_AC_CHECK_DECL_ONCE(], [)], [], $1)]) ## ---------------------------------- ## ## Replacement of library functions. ## ## ---------------------------------- ## # AC_CONFIG_LIBOBJ_DIR(DIRNAME) # ----------------------------- # Announce LIBOBJ replacement files are in $top_srcdir/DIRNAME. AC_DEFUN_ONCE([AC_CONFIG_LIBOBJ_DIR], [m4_divert_text([DEFAULTS], [ac_config_libobj_dir=$1])]) # AC_LIBSOURCE(FILE-NAME) # ----------------------- # Announce we might need the file `FILE-NAME'. m4_define([AC_LIBSOURCE], []) # AC_LIBSOURCES([FILE-NAME1, ...]) # -------------------------------- # Announce we might need these files. AC_DEFUN([AC_LIBSOURCES], [m4_map_args([AC_LIBSOURCE], $1)]) # _AC_LIBOBJ(FILE-NAME-NOEXT, ACTION-IF-INDIR) # -------------------------------------------- # We need `FILE-NAME-NOEXT.o', save this into `LIBOBJS'. m4_define([_AC_LIBOBJ], [case " $LIB@&t@OBJS " in *" $1.$ac_objext "* ) ;; *) AC_SUBST([LIB@&t@OBJS], ["$LIB@&t@OBJS $1.$ac_objext"]) ;; esac ]) # AC_LIBOBJ(FILE-NAME-NOEXT) # -------------------------- # We need `FILE-NAME-NOEXT.o', save this into `LIBOBJS'. AC_DEFUN([AC_LIBOBJ], [_AC_LIBOBJ([$1])]dnl [AS_LITERAL_WORD_IF([$1], [AC_LIBSOURCE([$1.c])], [AC_DIAGNOSE([syntax], [$0($1): you should use literals])])]) # _AC_LIBOBJS_NORMALIZE # --------------------- # Clean up LIBOBJS and LTLIBOBJS so that they work with 1. ac_objext, # 2. Automake's ANSI2KNR, 3. Libtool, 4. combination of the three. # Used with AC_CONFIG_COMMANDS_PRE. AC_DEFUN([_AC_LIBOBJS_NORMALIZE], [ac_libobjs= ac_ltlibobjs= m4_ifndef([AM_C_PROTOTYPES], [U= ])dnl for ac_i in : $LIB@&t@OBJS; do test "x$ac_i" = x: && continue # 1. Remove the extension, and $U if already installed. ac_script='s/\$U\././;s/\.o$//;s/\.obj$//' ac_i=`AS_ECHO(["$ac_i"]) | sed "$ac_script"` # 2. Prepend LIBOBJDIR. When used with automake>=1.10 LIBOBJDIR # will be set to the directory where LIBOBJS objects are built. AS_VAR_APPEND([ac_libobjs], [" \${LIBOBJDIR}$ac_i\$U.$ac_objext"]) AS_VAR_APPEND([ac_ltlibobjs], [" \${LIBOBJDIR}$ac_i"'$U.lo']) done AC_SUBST([LIB@&t@OBJS], [$ac_libobjs]) AC_SUBST([LTLIBOBJS], [$ac_ltlibobjs]) ]) ## ----------------------------------- ## ## Checking compiler characteristics. ## ## ----------------------------------- ## # _AC_COMPUTE_INT_COMPILE(EXPRESSION, VARIABLE, PROLOGUE, [IF-SUCCESS], # [IF-FAILURE]) # --------------------------------------------------------------------- # Compute the integer EXPRESSION and store the result in the VARIABLE. # Works OK if cross compiling, but assumes twos-complement arithmetic. m4_define([_AC_COMPUTE_INT_COMPILE], [# Depending upon the size, compute the lo and hi bounds. _AC_COMPILE_IFELSE([AC_LANG_BOOL_COMPILE_TRY([$3], [($1) >= 0])], [ac_lo=0 ac_mid=0 while :; do _AC_COMPILE_IFELSE([AC_LANG_BOOL_COMPILE_TRY([$3], [($1) <= $ac_mid])], [ac_hi=$ac_mid; break], [AS_VAR_ARITH([ac_lo], [$ac_mid + 1]) if test $ac_lo -le $ac_mid; then ac_lo= ac_hi= break fi AS_VAR_ARITH([ac_mid], [2 '*' $ac_mid + 1])]) done], [AC_COMPILE_IFELSE([AC_LANG_BOOL_COMPILE_TRY([$3], [($1) < 0])], [ac_hi=-1 ac_mid=-1 while :; do _AC_COMPILE_IFELSE([AC_LANG_BOOL_COMPILE_TRY([$3], [($1) >= $ac_mid])], [ac_lo=$ac_mid; break], [AS_VAR_ARITH([ac_hi], ['(' $ac_mid ')' - 1]) if test $ac_mid -le $ac_hi; then ac_lo= ac_hi= break fi AS_VAR_ARITH([ac_mid], [2 '*' $ac_mid])]) done], [ac_lo= ac_hi=])]) # Binary search between lo and hi bounds. while test "x$ac_lo" != "x$ac_hi"; do AS_VAR_ARITH([ac_mid], ['(' $ac_hi - $ac_lo ')' / 2 + $ac_lo]) _AC_COMPILE_IFELSE([AC_LANG_BOOL_COMPILE_TRY([$3], [($1) <= $ac_mid])], [ac_hi=$ac_mid], [AS_VAR_ARITH([ac_lo], ['(' $ac_mid ')' + 1])]) done case $ac_lo in @%:@(( ?*) AS_VAR_SET([$2], [$ac_lo]); $4 ;; '') $5 ;; esac[]dnl ])# _AC_COMPUTE_INT_COMPILE # _AC_COMPUTE_INT_RUN(EXPRESSION, VARIABLE, PROLOGUE, [IF-SUCCESS], # [IF-FAILURE]) # ----------------------------------------------------------------- # Store the evaluation of the integer EXPRESSION in VARIABLE. # # AC_LANG_INT_SAVE intentionally does not end the file in a newline, so # we must add one to make it a text file before passing it to read. m4_define([_AC_COMPUTE_INT_RUN], [_AC_RUN_IFELSE([AC_LANG_INT_SAVE([$3], [$1])], [echo >>conftest.val; read $2 <conftest.val; $4], [$5]) rm -f conftest.val ])# _AC_COMPUTE_INT_RUN # _AC_COMPUTE_INT_BODY # -------------------- # Shell function body for AC_COMPUTE_INT. m4_define([_AC_COMPUTE_INT_BODY], [ AS_LINENO_PUSH([$[]1]) if test "$cross_compiling" = yes; then _AC_COMPUTE_INT_COMPILE([$[]2], [$[]3], [$[]4], [ac_retval=0], [ac_retval=1]) else _AC_COMPUTE_INT_RUN([$[]2], [$[]3], [$[]4], [ac_retval=0], [ac_retval=1]) fi AS_LINENO_POP AS_SET_STATUS([$ac_retval]) ])# _AC_COMPUTE_INT_BODY # AC_COMPUTE_INT(VARIABLE, EXPRESSION, PROLOGUE, [IF-FAILS]) # ---------------------------------------------------------- # Store into the shell variable VARIABLE the value of the integer C expression # EXPRESSION. The value should fit in an initializer in a C variable of type # `signed long'. If no PROLOGUE are specified, the default includes are used. # IF-FAILS is evaluated if the value cannot be found (which includes the # case of cross-compilation, if EXPRESSION is not computable at compile-time. AC_DEFUN([AC_COMPUTE_INT], [AC_LANG_COMPILER_REQUIRE()]dnl [AC_REQUIRE_SHELL_FN([ac_fn_]_AC_LANG_ABBREV[_compute_int], [AS_FUNCTION_DESCRIBE([ac_fn_]_AC_LANG_ABBREV[_compute_int], [LINENO EXPR VAR INCLUDES], [Tries to find the compile-time value of EXPR in a program that includes INCLUDES, setting VAR accordingly. Returns whether the value could be computed])], [_$0_BODY])]dnl [AS_IF([ac_fn_[]_AC_LANG_ABBREV[]_compute_int "$LINENO" "$2" "$1" ]dnl ["AS_ESCAPE([$3], [""])"], [], [$4]) ])# AC_COMPUTE_INT # _AC_COMPUTE_INT(EXPRESSION, VARIABLE, PROLOGUE, [IF-FAILS]) # ----------------------------------------------------------- # FIXME: this private interface was used by several packages. # Give them time to transition to AC_COMPUTE_INT and then delete this one. AC_DEFUN([_AC_COMPUTE_INT], [AC_COMPUTE_INT([$2], [$1], [$3], [$4]) AC_DIAGNOSE([obsolete], [The macro `_AC_COMPUTE_INT' is obsolete and will be deleted in a future version or Autoconf. Hence, it is suggested that you use instead the public AC_COMPUTE_INT macro. Note that the arguments are slightly different between the two.])dnl ])# _AC_COMPUTE_INT
/home/sudancam/./../../usr/share/autoconf/autoconf/general.m4