Hui Zhou
8cd8c1f9c2
AC_TRY_{COMPILE,LINK,RUN} are obsolete, replace with AC_{COMPILE,LINK,RUN}_IFELSE.
Format the code for better readability.
49 linhas
1.7 KiB
Plaintext
49 linhas
1.7 KiB
Plaintext
# ===========================================================================
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# https://www.gnu.org/software/autoconf-archive/ax_check_posix_regcomp.html
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# ===========================================================================
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#
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# SYNOPSIS
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#
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# AX_CHECK_POSIX_REGCOMP
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#
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# DESCRIPTION
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#
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# Check that the POSIX compliant regular expression compiler is available
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# in the POSIX specified manner, and it works. If it fails, we have a
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# backup -- use gnu-regex.
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#
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# LICENSE
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#
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# Copyright (c) 2008 Bruce Korb <bkorb@gnu.org>
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#
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# Copying and distribution of this file, with or without modification, are
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# permitted in any medium without royalty provided the copyright notice
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# and this notice are preserved. This file is offered as-is, without any
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# warranty.
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#serial 6
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AU_ALIAS([AG_CHECK_POSIX_REGCOMP], [AX_CHECK_POSIX_REGCOMP])
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AC_DEFUN([AX_CHECK_POSIX_REGCOMP],[
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AC_MSG_CHECKING([whether POSIX compliant regcomp()/regexec()])
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AC_CACHE_VAL([ax_cv_posix_regcomp],[
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AC_RUN_IFELSE([AC_LANG_SOURCE([[
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#include <sys/types.h>
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#include <regex.h>
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int main() {
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int flags = REG_EXTENDED|REG_ICASE|REG_NEWLINE;
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regex_t re;
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if (regcomp( &re, "^.*$", flags ) != 0)
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return 1;
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return regcomp( &re, "yes.*|no.*", flags );
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}
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]])], [ax_cv_posix_regcomp=yes],[ax_cv_posix_regcomp=no],[ax_cv_posix_regcomp=no])
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])
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AC_MSG_RESULT([$ax_cv_posix_regcomp])
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if test "$ax_cv_posix_regcomp" = "yes"; then
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AC_DEFINE(HAVE_POSIX_REGCOMP, 1,
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[Define this if POSIX compliant regcomp()/regexec()])
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fi
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]) # end of AC_DEFUN of AX_CHECK_POSIX_REGCOMP
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