diff options
Diffstat (limited to 'tool/m4')
| -rw-r--r-- | tool/m4/ruby_universal_arch.m4 | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/tool/m4/ruby_universal_arch.m4 b/tool/m4/ruby_universal_arch.m4 index a2ee9e02be..375cdd98d2 100644 --- a/tool/m4/ruby_universal_arch.m4 +++ b/tool/m4/ruby_universal_arch.m4 @@ -88,3 +88,35 @@ AS_IF([test "x${ARCH_FLAG}" != x], [ ]) # RUBY_UNIVERSAL_ARCH end ])dnl +dnl +AC_DEFUN([RUBY_UNIVERSAL_CHECK_HEADER_COND], [ dnl + AC_CACHE_CHECK([for $2 when $1], [$3], + AC_COMPILE_IFELSE([AC_LANG_PROGRAM( + [AC_INCLUDES_DEFAULT([$6])[ + @%:@if ]$1[ + @%:@include <]$2[> + @%:@endif]], [[]])], + [AS_VAR_SET($3, yes)], + [AS_VAR_SET($3, no)])) + AS_VAR_IF([$3], [yes], [dnl + printf "@%:@if %s\n" "$1" >>confdefs.h + AC_DEFINE_UNQUOTED(HAVE_[]AS_TR_CPP($2), 1)dnl + printf "@%:@endif\n" >>confdefs.h dnl + $4], [$5]) +])dnl +dnl +# RUBY_UNIVERSAL_CHECK_HEADER(CPU-LIST, HEADER, +# [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND], +# [INCLUDES = DEFAULT-INCLUDES]) +AC_DEFUN([RUBY_UNIVERSAL_CHECK_HEADER], [ dnl + m4_if([$# dnl + ], [0], [], [ dnl + m4_foreach([rb_Header], [$1], + [AS_CASE([",$target_archs,"], [*,]rb_Header[,*], + [RUBY_UNIVERSAL_CHECK_HEADER_COND]([defined(__[]rb_Header[]__)], + [$2], [rb_cv_header_[]AS_TR_SH($2)_on_[]AS_TR_SH(rb_Header)], + [$3], [$4], [$5]) + ) + ]) + ])dnl +])dnl |