diff options
Diffstat (limited to 'tool/m4/ruby_check_builtin_func.m4')
| -rw-r--r-- | tool/m4/ruby_check_builtin_func.m4 | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/tool/m4/ruby_check_builtin_func.m4 b/tool/m4/ruby_check_builtin_func.m4 new file mode 100644 index 0000000000..b8502c2848 --- /dev/null +++ b/tool/m4/ruby_check_builtin_func.m4 @@ -0,0 +1,9 @@ +AC_DEFUN([RUBY_CHECK_BUILTIN_FUNC], [dnl +AC_CACHE_CHECK([for $1], AS_TR_SH(rb_cv_builtin_$1), + [AC_LINK_IFELSE( + [AC_LANG_PROGRAM([int foo;], [$2;])], + [AS_TR_SH(rb_cv_builtin_$1)=yes], + [AS_TR_SH(rb_cv_builtin_$1)=no])]) +AS_IF([test "${AS_TR_SH(rb_cv_builtin_$1)}" != no], [ + AC_DEFINE(AS_TR_CPP(HAVE_BUILTIN_$1)) +])])dnl |