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-rw-r--r--config/acx.m413
1 files changed, 13 insertions, 0 deletions
diff --git a/config/acx.m4 b/config/acx.m4
index 3c65d82..b86c4f9 100644
--- a/config/acx.m4
+++ b/config/acx.m4
@@ -425,7 +425,20 @@ AC_DEFUN([ACX_PROG_GDC],
[AC_REQUIRE([AC_CHECK_TOOL_PREFIX])
AC_REQUIRE([AC_PROG_CC])
AC_CHECK_TOOL(GDC, gdc, no)
+AC_CACHE_CHECK([whether the D compiler works],
+ acx_cv_d_compiler_works,
+[cat >conftest.d <<EOF
+module conftest; int main() { return 0; }
+EOF
+acx_cv_d_compiler_works=no
if test "x$GDC" != xno; then
+ errors=`(${GDC} $1[]m4_ifval([$1], [ ])-c conftest.d) 2>&1 || echo failure`
+ if test x"$errors" = x && test -f conftest.$ac_objext; then
+ acx_cv_d_compiler_works=yes
+ fi
+ rm -f conftest.*
+fi])
+if test "x$GDC" != xno && test x$acx_cv_d_compiler_works != xno; then
have_gdc=yes
else
have_gdc=no