1 files changed, 31 insertions, 0 deletions
diff --git a/conftest.c b/conftest.c
new file mode 100644
index 0000000..a803bff
--- /dev/null
+++ b/conftest.c
@@ -0,0 +1,31 @@
+#include <stdio.h>
+
+int main(int argc, char *argv[])
+{
+    switch(argc == 2 ? argv[1][0] : 0) {
+#ifdef __GNUC__
+        case 'v':
+            printf("%d\n", __GNUC__);
+            break;
+        case 'm':
+            printf("%d\n", __GNUC_MINOR__);
+            break;
+#else
+        case 'v':
+        case 'm':
+            puts("0");
+            break;
+#endif
+        case 'b':
+        {
+            volatile unsigned foo = 0x01234567;
+            puts(*(unsigned char*)&foo == 0x67 ? "no" : "yes");
+            break;
+        }
+        case -1:
+            /* to test -Wno-unused-result */
+            fread(NULL, 1, 1, NULL);
+            break;
+    }
+    return 0;
+}