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Diffstat (limited to 'm4/acinclude.m4')
| -rw-r--r-- | m4/acinclude.m4 | 803 |
1 files changed, 0 insertions, 803 deletions
diff --git a/m4/acinclude.m4 b/m4/acinclude.m4 deleted file mode 100644 index 0fb7b8999a8..00000000000 --- a/m4/acinclude.m4 +++ /dev/null @@ -1,803 +0,0 @@ -dnl ------------------------------------------------------------------------- -dnl $Id$ -dnl -dnl ACE M4 include file which contains general M4 macros -dnl to be used by the ACE configure script. -dnl -dnl The macros in this file were designed for ACE but should be -dnl general enough for general use. -dnl -dnl ------------------------------------------------------------------------- - -dnl Copyright (C) 1998, 1999 Ossama Othman -dnl -dnl All Rights Reserved -dnl -dnl This library is free software; you can redistribute it and/or -dnl modify it under the current ACE distribution terms. -dnl -dnl This library is distributed in the hope that it will be useful, -dnl but WITHOUT ANY WARRANTY; without even the implied warranty of -dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. - - -dnl miscellaneous macros - -dnl Prevent the configure script continuing any further if a CVS control -dnl directory is found. The idea is to prevent files generated during -dnl configuration and build from be checked in to the CVS repository that -dnl the sources are checked into. This should only be an issue for -dnl maintainers, not end-users. Maintainers should configure and build in -dnl a directory that doesn't contain any CVS controlled sources and files, -dnl i.e. that doesn't contain a CVS directory. -dnl -dnl Usage: ACE_CHECK_FOR_CVS_DIR -AC_DEFUN(ACE_CHECK_FOR_CVS_DIR, -[ - if test -d CVS; then - AC_MSG_ERROR( - [ - This error is meant for maintainers: - - Please configure and build in a non-CVS controlled directory. - Doing so will prevent accidentally committing automatically - generated files into the CVS repository and help ensure that - the generated files and build scheme are correct. - - For example, try the following from the top-level source - directory: - - mkdir objdir - cd objdir - ../configure - make - - This will create a build space in the directory \`objdir' and - start a build in that directory. - ]) - fi -]) - - -dnl Prevent the configure script from continuing any further if -dnl configuration is being performed in the top-level directory. The -dnl idea is to prevent files generated during configuration and build -dnl from overwriting the stock files of the same name. -dnl Usage: ACE_CHECK_TOP_SRCDIR -AC_DEFUN(ACE_CHECK_TOP_SRCDIR, -[ - if test $srcdir = "." && test $USE_MAINTAINER_MODE != yes; then - AC_MSG_ERROR( - [ - Please configure and build in a directory other than the - top-level source directory. Doing so will prevent files - distributed with the package from being overwritten. This - currently necessary since autoconf support is still - experimental. If you encounter problems please use the stock - build procedure. - - For example, try the following from the top-level source - directory: - - mkdir objdir - cd objdir - ../configure - make - - This will create a build space in the directory \`objdir' and - start a build in that directory. - ]) - fi -]) - -dnl Add compiler flags to the CXXFLAGS and CFLAGS variables when doing an -dnl AC_TRY_COMPILE (not ACE_TRY_COMPILE). -dnl Use this macro when adding include directories to the compiler flags, -dnl for example. -dnl Usage: ACE_TRY_COMPILE(COMPILER-FLAGS, INCLUDES, FUNCTION-BODY, -dnl [ACTION-IF-FOUND [,ACTION-IF-NOT-FOUND]]) -AC_DEFUN(ACE_TRY_COMPILE, dnl -[ - ifelse(AC_LANG, [CPLUSPLUS], - [ - ace_pre_try_CXXFLAGS="$CXXFLAGS" - CXXFLAGS="$CXXFLAGS $1" - ], - [ - ace_pre_try_CFLAGS="$CFLAGS" - CFLAGS="$CFLAGS $1" - ]) - - AC_TRY_COMPILE([$2],[$3],[$4],[$5]) - - dnl Restore the C++ and C flags - ifelse(AC_LANG, [CPLUSPLUS], - [CXXFLAGS="$ace_pre_try_CXXFLAGS"],[CFLAGS="$ace_pre_try_CFLAGS"]) - -]) - -dnl Create a temporary empty file and remove it after commands are done using -dnl it. The directory in which the temporary file will be created in must -dnl exist. Files will be created under the source directory, not the build -dnl directory. -dnl Use this macro when you need a particular file available but want it to be -dnl empty. This is useful to prevent conflicts with autoconf's confdefs.h -dnl header when doing an AC_TRY_COMPILE. -dnl Usage: ACE_USE_TEMP_FILE(TEMP-FILE-TO-CREATE, COMMANDS-THAT-WILL-USE-IT) -AC_DEFUN(ACE_USE_TEMP_FILE, dnl -[ - test -d ./$1 && AC_MSG_ERROR([cannot create file: $acetmp is a directory]) - - test -f ${srcdir}/$1 && mv ${srcdir}/$1 ${srcdir}/$1.conf - touch ${srcdir}/$1 - - if test ${srcdir}/$1 != "./$1"; then - test -f ./$1 && mv ./$1 ./$1.conf - dnl Create all of the sub-directories (assume "mkdir -p" is not portable). - acetmp="." -changequote(, )dnl - for ace_dir in `echo $1 | sed -e 's,/[^/][^/]*\$,,' -e 's,/, ,g'`; do -changequote([, ])dnl - acetmp="$acetmp/$ace_dir" - test -f $acetmp && AC_MSG_ERROR([cannot create directory: $acetmp]) - test -d $acetmp || mkdir $acetmp - done - touch ./$1 - fi - - $2 - - if test -f ${srcdir}/$1.conf; then - mv ${srcdir}/$1.conf ${srcdir}/$1 - else - rm ${srcdir}/$1 - fi - - if test ${srcdir}/$1 != "./$1"; then - if test -f ./$1.conf; then - mv ./$1.conf ./$1 - else - dnl Remove the file. Any sub-directories will not be removed - dnl since we have no way to tell if they existed prior to the - dnl creation of this file. - rm ./$1 - fi - fi -]) - -dnl Run given test(s) with warnings converted to errors -dnl Usage: ACE_CONVERT_WARNINGS_TO_ERRORS(TEST-BLOCK) -AC_DEFUN(ACE_CONVERT_WARNINGS_TO_ERRORS, dnl -[ -dnl $WERROR is set in the ACE_SET_COMPILER_FLAGS macro. - AC_REQUIRE([ACE_SET_COMPILER_FLAGS])dnl - -dnl Some tests may pass because the compiler issues warnings -dnl instead of errors when errors should occur. This macro converts -dnl warnings to errors when executing the action/test passed to this -dnl macro so that action/test fails when it is supposed to fail; at -dnl least that is the idea. - - ace_pre_warning_CXXFLAGS="$CXXFLAGS" - CXXFLAGS="$CXXFLAGS $WERROR" - - $1 - - CXXFLAGS="$ace_pre_warning_CXXFLAGS" -]) - -dnl Wrapper around AC_CACHE_VAL used to ensure "ACTION-IF" commands are run -dnl even if results have been previously cached. -dnl Usage: ACE_CACHE_CHECK(MESSAGE, CACHE-ID, COMMANDS-TO-SET-CACHE-VAL, -dnl ACTION-IF-CACHE-ID-IS-YES, -dnl ACTION-IF-CACHE-ID-IS-NO) -dnl The COMMANDS-TO-SET-CACHE-VAL should set the CACHE-ID to yes or "no," -dnl otherwise the "ACTION-IF*" commands may not run. The -dnl COMMANDS-TO-SET-CACHE-VAL should only set the CACHE value. For example, -dnl no AC_DEFINES should be placed in the COMMANDS-TO-SET-CACHE-VAL. -AC_DEFUN(ACE_CACHE_CHECK, -[ - AC_MSG_CHECKING([$1]) - AC_CACHE_VAL([$2], [$3]) - AC_MSG_RESULT([$]$2) - if test "[$]$2" != no; then - ace_just_a_place_holder=fixme -ifelse([$4], , :, [$4]) - else - ace_just_a_place_holder=fixme -ifelse([$5], , , [$5 -]) - fi -]) - -dnl checks for programs - -dnl checks for libraries - -dnl checks for header files - -dnl checks for typedefs - -dnl Check for specific typedef in given header file -dnl Usage: ACE_CHECK_TYPE(TYPEDEF, INCLUDE, -dnl [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]) -dnl This macro can only check for one typedef in one header file at a time!! -AC_DEFUN(ACE_CHECK_TYPE, dnl -[ -dnl AC_REQUIRE([AC_PROG_CXX]) -dnl AC_REQUIRE([AC_PROG_CXXCPP]) -dnl AC_REQUIRE([AC_LANG_CPLUSPLUS]) - - ACE_CACHE_CHECK([for $1 in $2], [ace_cv_type_$1], - [ - AC_TRY_COMPILE( - [ -#include <$2> - ], - [ - $1 ace_$1; - ], - [ - ace_cv_type_$1=yes - ], - [ - ace_cv_type_$1=no - ]) - ],[$3],[$4]) -]) - - -dnl checks for structures - -dnl Check for specific struct in given header file -dnl Usage: ACE_CHECK_STRUCT(STRUCTURE, INCLUDE, -dnl [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]) -dnl This macro can only check for one struct in one header file at a time!! -AC_DEFUN(ACE_CHECK_STRUCT, dnl -[ -dnl AC_REQUIRE([AC_PROG_CXX]) -dnl AC_REQUIRE([AC_PROG_CXXCPP]) -dnl AC_REQUIRE([AC_LANG_CPLUSPLUS]) - -dnl Do the transliteration at runtime so arg 1 can be a shell variable. -dnl ac_safe=`echo "$1" | sed 'y%./+-%__p_%'` - - ACE_CACHE_CHECK([for struct $1 in $2], [ace_cv_struct_$1], - [ - ACE_TRY_COMPILE_STRUCT([$1], [$2], - [ - ace_cv_struct_$1=yes - ], - [ - ace_cv_struct_$1=no - ]) - ], $3, $4) -]) - -dnl Check for specific struct in given header file by compiling a test -dnl program. This macro is used by ACE_CHECK_STRUCT. -dnl Usage: ACE_TRY_COMPILE_STRUCT(STRUCTURE, INCLUDE, -dnl [ACTION-IF-SUCCESSFUL[, ACTION-IF-NOT-SUCCESSFUL]]) -dnl This macro can only check for one struct in one header file at a time!! -AC_DEFUN(ACE_TRY_COMPILE_STRUCT, dnl -[ -dnl AC_REQUIRE([AC_PROG_CXX]) -dnl AC_REQUIRE([AC_PROG_CXXCPP]) -dnl AC_REQUIRE([AC_LANG_CPLUSPLUS]) - - AC_TRY_COMPILE( - [ -#include <$2> - ], - [ - struct $1 ace_$1; - ], - [ - $3 - ], - [ -dnl Some compilers don't like the "struct" but we need the struct for -dnl some platforms to resolve ambiguities between functions and -dnl structures with with the same name. So, we try the same test but -dnl without "struct" if the above test with "struct" fails. If both -dnl tests fail, then we can be reasonably sure that we don't have the -dnl structure we are testing for. - AC_TRY_COMPILE( - [ -#include <$2> - ], - [ - $1 ace_$1; - ], - [ - $3 - ], - [ - $4 - ]) - ]) -]) - -dnl checks for variables - -dnl checks for compiler characteristics - -dnl checks for library functions - -dnl Check for function using prototype in header -dnl This macro is used if a function is called a different name in a given -dnl library than what is in the header file but the difference is made -dnl transparent to the user since the header may provide a macro to make -dnl things "transparent." If the given header does not exist then this -dnl macro acts just like the standard AC_CHECK_FUNC macro. -dnl Usage: ACE_CHECK_FUNC(FUNCTION, HEADER, -dnl [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]) -AC_DEFUN(ACE_CHECK_FUNC, dnl -[ -dnl AC_REQUIRE([AC_PROG_CXX]) -dnl AC_REQUIRE([AC_PROG_CXXCPP]) -dnl AC_REQUIRE([AC_LANG_CPLUSPLUS]) - AC_REQUIRE([AC_PROG_AWK]) - - AC_TRY_CPP( - [ -#include <$2> - ], - [ace_header_exists=yes], - [ace_header_exists=no]) - - cat > conftest.$ac_ext <<EOF - -#include <$2> - ACE_REAL_FUNCTION $1 - -EOF - - if test "$ace_header_exists" = yes; then - if test -z "$AWK"; then - AC_MSG_WARN([No awk program found. "Real" function may not be found.]) - fi - - if (eval "$ac_cpp conftest.$ac_ext") 2>&5 | - egrep "ACE_REAL_FUNCTION" | - (eval "$AWK '{print \[$]2}' > conftest.awk 2>&1"); then - rm -f conftest.$ac_ext - ace_real_function=`cat conftest.awk` - rm -f conftest.awk - fi - - if test $1 != "$ace_real_function"; then - AC_MSG_CHECKING([for real $1 from $2]) - AC_MSG_RESULT([$ace_real_function]) - fi - else - ace_real_function=$1 - fi dnl test "$ace_header_not_exist" != yes - - AC_CHECK_FUNC([$ace_real_function],[$3],[$4]) -]) - -dnl Check for function in library using prototype in header -dnl This macro is used if a function is called a different name in a given -dnl library than what is in the header file but the difference is made -dnl transparent to the user since the header may provide a macro to make -dnl things "transparent." If the given header does not exist then this -dnl macro acts just like the standard AC_CHECK_LIB macro. -dnl Usage: ACE_CHECK_LIB(LIBRARY, FUNCTION, HEADER, -dnl [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]) -AC_DEFUN(ACE_CHECK_LIB, dnl -[ -dnl AC_REQUIRE([AC_PROG_CXX]) -dnl AC_REQUIRE([AC_PROG_CXXCPP]) -dnl AC_REQUIRE([AC_LANG_CPLUSPLUS]) - AC_REQUIRE([AC_PROG_AWK]) - - AC_TRY_CPP( - [ -#include <$3> - ], ace_header_exists=yes, ace_header_exists=no) - - cat > conftest.$ac_ext <<EOF - -#include <$3> - ACE_REAL_FUNCTION $2 - -EOF - - if test "$ace_header_exists" = yes; then - if test -z "$AWK"; then - AC_MSG_WARN(No awk program found. "Real" function in library may not be found.) - fi - - if (eval "$ac_cpp conftest.$ac_ext") 2>&5 | - egrep "ACE_REAL_FUNCTION" | - eval "$AWK '{print \[$]2}'" > conftest.awk 2>&1; then - rm -f conftest.$ac_ext - ace_real_function=`cat conftest.awk` - rm -f conftest.awk - fi - - if test $2 != "$ace_real_function"; then - AC_MSG_CHECKING(for real $2 from $3) - AC_MSG_RESULT($ace_real_function) - fi - else - ace_real_function=$2 - fi dnl test "$ace_header_not_exist" != yes - - AC_CHECK_LIB($1, $ace_real_function, $4, $5) -]) - - -dnl Check if getrlimit() takes an enum as 1st argument -dnl Usage: ACE_CHECK_SETRLIMIT_ENUM -AC_DEFUN(ACE_CHECK_SETRLIMIT_ENUM, dnl -[ -if test "$ac_cv_func_setrlimit" = yes; then - AC_MSG_CHECKING([if setrlimit() takes an enum as 1st argument]) - AC_EGREP_HEADER([setrlimit.*\(.*[^,]*enum], sys/resource.h, - [ - cat > conftest.$ac_ext <<EOF -#include "confdefs.h" -#include <sys/resource.h> -EOF - -changequote(, )dnl -dnl Here we attempt to determine the type of the first argument of -dnl getrusage from its prototype. It should either be an int or an -dnl enum. If it is an enum, determine the enum type. - ace_setrlimit_enum=`eval "$ac_cpp conftest.$ac_ext" | \ - egrep '[ ]+setrlimit.*\(.*[^,]*enum' | \ - sed -e 's/^.*setrlimit.*(.*enum//' -e 's/[^ ]*,.*$//'` -changequote([, ])dnl - - ace_setrlimit_enum="enum $ace_setrlimit_enum" - - AC_MSG_RESULT([$ace_setrlimit_enum]) - -if test -n "$ace_setrlimit_enum"; then - AC_DEFINE_UNQUOTED([ACE_HAS_RLIMIT_RESOURCE_ENUM], [$ace_setrlimit_enum]) -fi - - rm -rf conftest* - -dnl Do not remove this parenthesis --> ) -dnl It's only purpose to keep Emacs from getting confused about mismatched -dnl parentheses. - ], - [ - AC_MSG_RESULT([no]) - ]) - -fi dnl test "$ac_cv_func_setrlimit" = yes -]) - -dnl Check if getrusage() takes an enum as 1st argument -dnl Usage: ACE_CHECK_GETRUSAGE_ENUM -AC_DEFUN(ACE_CHECK_GETRUSAGE_ENUM, dnl -[ -if test "$ac_cv_func_getrusage" = yes; then - AC_MSG_CHECKING([if getrusage() takes an enum as 1st argument]) - AC_EGREP_HEADER([getrusage.*\(.*[^,]*enum], sys/resource.h, - [ - cat > conftest.$ac_ext <<EOF -#include "confdefs.h" -#include <sys/resource.h> -EOF - -changequote(, )dnl -dnl Here we attempt to determine the type of the first argument of -dnl getrusage from its prototype. It should either be an int or an -dnl enum. If it is an enum, determine the enum type. - ace_rusage_who=`eval "$ac_cpp conftest.$ac_ext" | \ - egrep '[ ]+getrusage.*\(.*[^,]*enum' | \ - sed -e 's/^.*getrusage.*(.*enum//' -e 's/[^ ]*,.*$//'` -changequote([, ])dnl - - ace_rusage_who="enum $ace_rusage_who" - - AC_MSG_RESULT([$ace_rusage_who]) - -if test -n "$ace_rusage_who"; then - AC_DEFINE_UNQUOTED([ACE_HAS_RUSAGE_WHO_ENUM], [$ace_rusage_who]) -fi - - rm -rf conftest* - -dnl Do not remove this parenthesis --> ) -dnl It's only purpose to keep Emacs from getting confused about mismatched -dnl parentheses. - ], - [ - AC_MSG_RESULT([no]) - ]) - -fi dnl test "$ac_cv_func_getrusage" = yes -]) - - -dnl Check for 64 bit llseek() or lseek64() -dnl Usage: ACE_CHECK_LSEEK64 -AC_DEFUN([ACE_CHECK_LSEEK64], -[ - AC_CHECK_FUNC([lseek64], - [ - AC_DEFINE([ACE_HAS_LSEEK64]) - - dnl Check for 64 bit offset type in the lseek64() prototype, if it - dnl exists. - dnl ACE_CHECK_OFF64_T([lseek64]) - - dnl Check if _LARGEFILE64_SOURCE macro is needed to make the - dnl lseek64() prototype visible, or if the prototype itself is missing. - ACE_CACHE_CHECK([for lseek64 prototype], - [ace_cv_lib_has_lseek64_prototype], - [ - ace_save_CPPFLAGS="$CPPFLAGS" - ace_no_largefile64="-U_LARGEFILE64_SOURCE" - CPPFLAGS="$CPPFLAGS $ace_no_largefile64" - AC_EGREP_HEADER([[^_]+lseek64], unistd.h, - [ - ace_cv_lib_has_lseek64_prototype=yes - ], - [ - ace_cv_lib_has_lseek64_prototype=no - ]) - dnl Reset the compiler flags - CPPFLAGS="$ace_save_CPPFLAGS" - ],, AC_DEFINE(ACE_LACKS_LSEEK64_PROTOTYPE)) - ], - [ - AC_CHECK_FUNC([llseek], - [ - AC_DEFINE([ACE_HAS_LLSEEK]) - dnl Check if _LARGEFILE64_SOURCE macro is needed to make the - dnl llseek() prototype visible, or if the prototype itself is - dnl missing. - - dnl Check for 64 bit offset type in the llseek() prototype, if - dnl it exists. - dnl ACE_CHECK_OFF64_T([llseek]) - - ACE_CACHE_CHECK([for llseek prototype], - [ace_cv_lib_has_llseek_prototype], - [ - ace_save_CPPFLAGS="$CPPFLAGS" - ace_no_largefile64="-U_LARGEFILE64_SOURCE" - CPPFLAGS="$CPPFLAGS $ace_no_largefile64" - AC_EGREP_HEADER([[^_]+llseek], unistd.h, - [ - ace_cv_lib_has_llseek_prototype=no - ], - [ - ace_cv_lib_has_llseek_prototype=yes - ],) - dnl Reset the compiler flags - CPPFLAGS="$ace_save_CPPFLAGS" - ],, AC_DEFINE(ACE_LACKS_LLSEEK_PROTOTYPE)) - - - ],) - ]) -]) - -dnl Check what the 64 bit offset type is by checking what the offset -dnl argument for llseek()/lseek64() is. -dnl Usage: ACE_CHECK_LOFF_64(LSEEK64-FUNC) -AC_DEFUN([ACE_CHECK_OFF64_T], -[ - AC_MSG_CHECKING([for 64 bit offset type]) - AC_EGREP_HEADER([[ ]+$1.*\(.*], unistd.h, - [ - cat > conftest.$ac_ext <<EOF -#include "confdefs.h" - -/* Make sure 64 bit file feature test macro is defined. */ -#ifndef _LARGEFILE64_SOURCE -# define _LARGEFILE64_SOURCE -#endif - -#ifndef ACE_LACKS_UNISTD_H -# include <unistd.h> /* needed for lseek64()/llseek() prototype */ -#endif -EOF - -changequote(, )dnl -dnl Here we attempt to determine the type of the second argument of -dnl lseek64()/llseek() from its prototype. - ace_off64_t=`eval "$ac_cpp conftest.$ac_ext" | \ - egrep '[ ]+lseek64.*\(.*' | \ - sed -e 's/^.*(.*,[ ]*\(.*\) .*,.*$/\1/'` -changequote([, ])dnl - - -if test -n "$ace_off64_t"; then - AC_MSG_RESULT([$ace_off64_t]) - AC_DEFINE_UNQUOTED([ACE_LOFF_T_TYPEDEF], [$ace_off64_t]) -fi - - rm -rf conftest* - -dnl Do not remove this parenthesis --> ) -dnl It's only purpose is to keep Emacs from getting confused about -dnl mismatched parentheses. - ], - [ - AC_MSG_RESULT([no]) - ]) -]) - -dnl checks for structures - -dnl checks for system services - - -dnl *********************** SPECIAL SECTION ******************************* -dnl -dnl This section contains my own *re*implementation of the functionality -dnl provided by some tests/macros found in GNU Autoconf since the ones found -dnl in Autoconf don't appear to work as expected. -dnl -dnl -Ossama Othman <ossama@debian.org> -dnl -dnl The copyright for the following macros is listed below. -dnl Note that all macros listed prior to this section are copyrighted -dnl by Ossama Othman, not the Free Software Foundation. Nevertheless, -dnl all software found in this file is free software. Please read the -dnl distribution terms found at the top of this file and the ones below. - -dnl Parameterized macros. -dnl Requires GNU m4. -dnl This file is part of Autoconf. -dnl Copyright (C) 1992, 93, 94, 95, 96, 1998 Free Software Foundation, Inc. -dnl -dnl This program is free software; you can redistribute it and/or modify -dnl it under the terms of the GNU General Public License as published by -dnl the Free Software Foundation; either version 2, or (at your option) -dnl any later version. -dnl -dnl This program is distributed in the hope that it will be useful, -dnl but WITHOUT ANY WARRANTY; without even the implied warranty of -dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -dnl GNU General Public License for more details. -dnl -dnl You should have received a copy of the GNU General Public License -dnl along with this program; if not, write to the Free Software -dnl Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA -dnl 02111-1307, USA. -dnl -dnl As a special exception, the Free Software Foundation gives unlimited -dnl permission to copy, distribute and modify the configure scripts that -dnl are the output of Autoconf. You need not follow the terms of the GNU -dnl General Public License when using or distributing such scripts, even -dnl though portions of the text of Autoconf appear in them. The GNU -dnl General Public License (GPL) does govern all other use of the material -dnl that constitutes the Autoconf program. -dnl -dnl Certain portions of the Autoconf source text are designed to be copied -dnl (in certain cases, depending on the input) into the output of -dnl Autoconf. We call these the "data" portions. The rest of the Autoconf -dnl source text consists of comments plus executable code that decides which -dnl of the data portions to output in any given case. We call these -dnl comments and executable code the "non-data" portions. Autoconf never -dnl copies any of the non-data portions into its output. -dnl -dnl This special exception to the GPL applies to versions of Autoconf -dnl released by the Free Software Foundation. When you make and -dnl distribute a modified version of Autoconf, you may extend this special -dnl exception to the GPL to apply to your modified version as well, *unless* -dnl your modified version has the potential to copy into its output some -dnl of the text that was the non-data portion of the version that you started -dnl with. (In other words, unless your change moves or copies text from -dnl the non-data portions to the data portions.) If your modification has -dnl such potential, you must delete any notice of this special exception -dnl to the GPL from your modified version. -dnl -dnl Written by David MacKenzie, with help from -dnl Franc,ois Pinard, Karl Berry, Richard Pixley, Ian Lance Taylor, -dnl Roland McGrath, Noah Friedman, david d zuhn, and many others. - - -dnl Usage: ACE_SEARCH_LIBS(FUNCTION, SEARCH-LIBS [, ACTION-IF-FOUND -dnl [, ACTION-IF-NOT-FOUND [, OTHER-LIBRARIES]]]) -dnl Search for a library defining FUNCTION, if it's not already available. -AC_DEFUN(ACE_SEARCH_LIBS, dnl -[ - AC_CACHE_CHECK([for library containing $1], [ac_cv_search_$1], - [ - ac_func_search_save_LIBS="$LIBS" - - ac_cv_search_$1="no" - - ACE_TRY_LINK_FUNC([$1], [ac_cv_search_$1="none required"]) - - test "$ac_cv_search_$1" = "no" && for i in $2; do - LIBS="-l$i $5 $ac_func_search_save_LIBS" - ACE_TRY_LINK_FUNC([$1], - [ - ac_cv_search_$1="-l$i" - break - ]) - done - - LIBS="$ac_func_search_save_LIBS" - ]) - - if test "$ac_cv_search_$1" != "no"; then - test "$ac_cv_search_$1" = "none required" || LIBS="$ac_cv_search_$1 $LIBS" - $3 - else : - $4 - fi -]) - -dnl Usage: ACE_TRY_LINK_FUNC(FUNCTION,[, ACTION-IF-FOUND -dnl [, ACTION-IF-NOT-FOUND]) -dnl Search for a library defining FUNCTION, if it's not already available. -AC_DEFUN(ACE_TRY_LINK_FUNC, dnl -[ -AC_TRY_LINK( -dnl Don't include <ctype.h> because on OSF/1 3.0 it includes <sys/types.h> -dnl which includes <sys/select.h> which contains a prototype for -dnl select. Similarly for bzero. -[/* System header to define __stub macros and hopefully few prototypes, - which can conflict with char $1(); below. */ -#include <assert.h> -/* Override any gcc2 internal prototype to avoid an error. */ -]ifelse(AC_LANG, CPLUSPLUS, [#ifdef __cplusplus -extern "C" -#endif -])dnl -[/* We use char because int might match the return type of a gcc2 - builtin and then its argument prototype would still apply. */ -char $1(); -], [ -/* The GNU C library defines this for functions which it implements - to always fail with ENOSYS. Some functions are actually named - something starting with __ and the normal name is an alias. */ -#if defined (__stub_$1) || defined (__stub___$1) -choke me -#else -$1(); -#endif -],[$2],[$3]) -]) - -AC_DEFUN(ACE_SYS_RESTARTABLE_SYSCALLS, -[AC_REQUIRE([AC_HEADER_SYS_WAIT]) -AC_CHECK_HEADERS(unistd.h) -AC_CACHE_CHECK(for restartable system calls, ac_cv_sys_restartable_syscalls, -[AC_TRY_RUN( -[/* Exit 0 (true) if wait returns something other than -1, - i.e. the pid of the child, which means that wait was restarted - after getting the signal. */ -#include <sys/types.h> -#include <signal.h> -#if HAVE_UNISTD_H -# include <unistd.h> -#endif -#if HAVE_SYS_WAIT_H -# include <sys/wait.h> -#endif - -/* Some platforms explicitly require an extern "C" signal handler - when using C++. */ -#ifdef __cplusplus -extern "C" -#endif -void ucatch (int) { } - -main () { - int i = fork (), status; - if (i == 0) { sleep (3); kill (getppid (), SIGINT); sleep (3); exit (0); } - signal (SIGINT, ucatch); - status = wait(&i); - if (status == -1) wait(&i); - exit (status == -1); -} -], ac_cv_sys_restartable_syscalls=yes, ac_cv_sys_restartable_syscalls=no)]) -if test $ac_cv_sys_restartable_syscalls = yes; then - AC_DEFINE(HAVE_RESTARTABLE_SYSCALLS) -fi -]) - |