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Annotation of OpenXM_contrib/gnuplot/m4/search-hdr.m4, Revision 1.1

1.1     ! maekawa     1: ## --------------------------------------------- ##
        !             2: ## Search several directories for header file.   ##
        !             3: ## Built around a non-caching and silent version ##
        !             4: ## of AC_CHECK_HEADER.                           ##
        !             5: ## From Lars Hecking                             ##
        !             6: ## --------------------------------------------- ##
        !             7:
        !             8: # serial 1
        !             9:
        !            10: dnl gp_SEARCH_HEADERDIRS(HEADER-FILE [,ACTION-IF-FOUND [,ACTION-IF-NOT-FOUND]])
        !            11: AC_DEFUN(gp_SEARCH_HEADERDIRS,
        !            12: [AC_REQUIRE([gp_SEARCH_LIBDIRS])
        !            13: AC_MSG_CHECKING([for $1])
        !            14: ac_safe=`echo "$1" | sed 'y%./+-%__p_%'`
        !            15: gp_save_CPPFLAGS="$CPPFLAGS"
        !            16: for ac_dir in '' /usr/local/include $gp_lib_prefix $gp_lib_prefix/include ; do
        !            17:   CPPFLAGS="$gp_save_CPPFLAGS `test x${ac_dir} != x && echo -I${ac_dir}`"
        !            18:   AC_TRY_CPP([#include <$1>], eval "ac_cv_header_$ac_safe=yes",
        !            19:     eval "ac_cv_header_$ac_safe=no")
        !            20:   if eval "test \"`echo '$ac_cv_header_'$ac_safe`\" = yes"; then
        !            21:     break
        !            22:   else
        !            23:     CPPFLAGS="${ac_save_CPPFLAGS}"
        !            24:   fi
        !            25: done
        !            26: if eval "test \"`echo '$ac_cv_header_'$ac_safe`\" = yes"; then
        !            27:   AC_MSG_RESULT(yes)
        !            28:   ifelse([$2], , :, [$2])
        !            29: else
        !            30:   AC_MSG_RESULT(no)
        !            31: ifelse([$3], , , [$3
        !            32: ])dnl
        !            33: fi
        !            34: ])
        !            35: