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Annotation of OpenXM_contrib/gnuplot/m4/search-hdr.m4, Revision 1.1.1.1

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: