diff --git a/configure.ac b/configure.ac
index dd0921725..9a57e1521 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1173,16 +1173,16 @@ fi
 AC_SUBST(SANITIZERS, [$sanitizers])
 
 AC_MSG_CHECKING([CC support C11 _Generic()])
-AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[int foo(void); int foo() { int a = 0; int b = _Generic (a, int: 4); return b + a; }]],
-                                   [[foo();]])],
+AC_COMPILE_IFELSE([AC_LANG_SOURCE([[int foo(void); int foo() { int a = 0; int b = _Generic (a, int: 4); return b + a; }]],
+                                  [[foo();]])],
                   [cc_support_generic=1],
                   [cc_support_generic=0])
 AC_MSG_RESULT($cc_support_generic)
 AC_DEFINE_UNQUOTED(_NM_CC_SUPPORT_GENERIC, $cc_support_generic, [Define whether the compiler supports C11 _Generic()])
 
 AC_MSG_CHECKING([CC support gcc __auto_type])
-AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[int foo(void); int foo() { int a = 0; __auto_type b = a; return b + a; }]],
-                                   [[foo();]])],
+AC_COMPILE_IFELSE([AC_LANG_SOURCE([[int foo(void); int foo() { int a = 0; __auto_type b = a; return b + a; }]],
+                                  [[foo();]])],
                   [cc_support_auto_type=1],
                   [cc_support_auto_type=0])
 AC_MSG_RESULT($cc_support_auto_type)