Create config-print program to test $cc

Create a helper program called config-print to print informations relative to the BUILD/HOST environment in the case of native compilation.
2013-02-13 22:35:36 +01:00
parent a4cbd9b002
commit e298f60838
2 changed files with 41 additions and 46 deletions
--- a/config-print.c
+++ b/config-print.c
@ -0,0 +1,35 @@
+#include <inttypes.h>
+#include <stdio.h>
+
+int main(int argc, char *argv[]) {
+    switch(argc == 2 ? argv[1][0] : 0) {
+        case 'v':
+#ifdef __GNUC__
+# if __GNUC__ >= 4
+            puts("4");
+# elif __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 2)
+            puts("3");
+# else
+            puts("2");
+# endif
+#else
+            puts("0");
+#endif
+            break;
+        case 'm':
+#ifdef __GNUC__
+            printf("%d\n", __GNUC_MINOR__);
+#else
+	    puts("-1");
+#endif
+            break;
+        case 'e':
+            {
+                volatile uint32_t i=0x01234567;
+                if ((*((uint8_t*)(&i))) == 0x67)
+                    puts("yes");
+            }
+        break;
+    }
+    return 0;
+}