Macro: ag_check_posix_regcomp

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Synopsis

  `AG_CHECK_POSIX_REGCOMP`

Version

  1.1 (2001/11/11) bkorb @ ac-archive-0.5.39

Author

  autogen.sf.net is a project of Bruce Korb <bkorb@gnu.org>

Description

  Check that the POSIX compliant regular expression compiler is available in the POSIX specified manner, and it works.

M4 Source Code

      AC_DEFUN(AG_CHECK_POSIX_REGCOMP,[
        AC_MSG_CHECKING([whether POSIX compliant regcomp()/regexec()])
        AC_CACHE_VAL([ag_cv_posix_regcomp],[
        AC_TRY_RUN([#include <sys/types.h>
      #include <regex.h>
      int main() {
        regex_t  re;
        return regcomp( &re, "^.*$", REG_EXTENDED|REG_ICASE|REG_NEWLINE ); }],[ag_cv_posix_regcomp=yes],[ag_cv_posix_regcomp=no],[ag_cv_posix_regcomp=no]
                 ) # end of TRY_RUN]) # end of CACHE_VAL

       AC_MSG_RESULT([$ag_cv_posix_regcomp])
       if test x$ag_cv_posix_regcomp = xyes
       then
         AC_DEFINE(HAVE_POSIX_REGCOMP, 1,
            [Define this if POSIX compliant regcomp()/regexec()])
       fi
       ]) # end of AC_DEFUN