gdbsupport: replace AC_TRY_COMPILE in warning.m4

[deliverable/binutils-gdb.git] / gdbsupport / warning.m4

diff --git a/gdbsupport/warning.m4 b/gdbsupport/warning.m4
index 649be7552dd10942dbf983a83b69179b6316cf6c..c88d4c65a078afbf6581e349b4a9526ae88ac3fa 100644 (file)
--- a/gdbsupport/warning.m4
+++ b/gdbsupport/warning.m4
@@ -139,15 +139,23 @@ then
              # Check for https://gcc.gnu.org/bugzilla/show_bug.cgi?id=38958,
              # fixed in GCC 4.9.  This test is derived from the gdb
              # source code that triggered this bug in GCC.
-             AC_TRY_COMPILE(
-               [struct scoped_restore_base {};
-                 struct scoped_restore_tmpl : public scoped_restore_base {
-                  ~scoped_restore_tmpl() {}
-                };],
-               [const scoped_restore_base &b = scoped_restore_tmpl();],
-               WARN_CFLAGS="${WARN_CFLAGS} $w",)
+             AC_COMPILE_IFELSE(
+               [AC_LANG_PROGRAM(
+                  [struct scoped_restore_base {};
+                   struct scoped_restore_tmpl : public scoped_restore_base {
+                     ~scoped_restore_tmpl() {}
+                   };],
+                  [const scoped_restore_base &b = scoped_restore_tmpl();]
+                )],
+               [WARN_CFLAGS="${WARN_CFLAGS} $w"],
+               []
+             )
            else
-             AC_TRY_COMPILE([],[],WARN_CFLAGS="${WARN_CFLAGS} $w",)
+             AC_COMPILE_IFELSE(
+               [AC_LANG_PROGRAM([], [])],
+               [WARN_CFLAGS="${WARN_CFLAGS} $w"],
+               []
+             )
            fi
            CFLAGS="$saved_CFLAGS"
            CXXFLAGS="$saved_CXXFLAGS"