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-rw-r--r--tool/m4/ruby_mingw32.m44
1 files changed, 2 insertions, 2 deletions
diff --git a/tool/m4/ruby_mingw32.m4 b/tool/m4/ruby_mingw32.m4
index 76b95f02a8..f44fe5575c 100644
--- a/tool/m4/ruby_mingw32.m4
+++ b/tool/m4/ruby_mingw32.m4
@@ -3,11 +3,11 @@ AC_DEFUN([RUBY_MINGW32],
[AS_CASE(["$host_os"],
[cygwin*], [
AC_CACHE_CHECK(for mingw32 environment, rb_cv_mingw32,
-[AC_PREPROC_IFELSE([AC_LANG_SOURCE([[
+[AC_TRY_CPP([
#ifndef __MINGW32__
# error
#endif
-]])],[rb_cv_mingw32=yes],[rb_cv_mingw32=no])
+], rb_cv_mingw32=yes,rb_cv_mingw32=no)
rm -f conftest*])
AS_IF([test "$rb_cv_mingw32" = yes], [
target_os="mingw32"