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Annotation of OpenXM_contrib/gnuplot/m4/path-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 2
                      9:
                     10: dnl GP_PATH_HEADER(HEADER-FILE, SEARCH-DIRS [,ACTION-IF-FOUND [,ACTION-IF-NOT-FOUND]])
                     11: AC_DEFUN(GP_PATH_HEADER,
                     12: [ac_safe=`echo "$1" | sed 'y%./+-%__p_%'`
                     13: changequote(, )dnl
                     14:   ac_tr_hdr=HAVE_`echo $1 | sed 'y%abcdefghijklmnopqrstuvwxyz./-%ABCDEFGHIJKLMNOPQRSTUVWXYZ___%'`
                     15: changequote([, ])dnl
                     16: AC_MSG_CHECKING([for $1])
                     17: AC_CACHE_VAL(ac_cv_header_$ac_safe,
                     18: [gp_save_CPPFLAGS="$CPPFLAGS"
                     19: if test "$2" != yes && test "$2" != no; then
                     20:   gp_h_path=`echo "$2" | sed -e 's%/lib$1\.a$%%'`
                     21:   gp_h_prfx=`echo "$gp_h_path" | sed -e 's%/lib$%%' -e 's%/include$%%'`
                     22:   gp_h_list="$gp_h_prfx $gp_h_prfx/include $gp_h_path"
                     23: else
                     24:   gp_h_list=''
                     25: fi
                     26: for ac_dir in $gp_h_list '' /usr/local/include ; do
                     27:   test x${ac_dir} != x && CPPFLAGS="$gp_save_CPPFLAGS -I${ac_dir}"
                     28:   AC_TRY_CPP([#include <$1>], eval "ac_cv_header_$ac_safe=${ac_dir}",
                     29:     eval "ac_cv_header_$ac_safe=no")
                     30:   CPPFLAGS="$gp_save_CPPFLAGS"
                     31:   if eval "test \"`echo '$ac_cv_header_'$ac_safe`\" != no"; then
                     32:     break
                     33:   fi
                     34: done
                     35: ])
                     36: if eval "test \"`echo '$ac_cv_header_'$ac_safe`\" != no"; then
                     37:   if eval "test \"`echo x'$ac_cv_header_'$ac_safe`\" != x" && eval "test \"`echo x'$ac_cv_header_'$ac_safe`\" != xyes"; then
                     38:     eval "CPPFLAGS=\"$gp_save_CPPFLAGS -I`echo '$ac_cv_header_'$ac_safe`\""
                     39:   fi
                     40:   AC_DEFINE_UNQUOTED($ac_tr_hdr)
                     41:   AC_MSG_RESULT(yes)
                     42:   ifelse([$3], , :, [$3])
                     43: else
                     44:   AC_MSG_RESULT(no)
                     45: ifelse([$4], , , [$4
                     46: ])dnl
                     47: fi
                     48: ])
                     49: