1 files changed, 12 insertions, 0 deletions
diff --git a/waftools/fragments/ebx.c b/waftools/fragments/ebx.c
new file mode 100644
index 0000000000..b487939c56
--- /dev/null
+++ b/waftools/fragments/ebx.c
@@ -0,0 +1,12 @@
+int main(void) {
+    int x;
+    __asm__ volatile(
+        "xor %0, %0"
+        :"=b"(x)
+        // just adding ebx to clobber list seems unreliable with some
+        // compilers, e.g. Haiku's gcc 2.95
+    );
+    // and the above check does not work for OSX 64 bit...
+    __asm__ volatile("":::"%ebx");
+    return 0;
+}