diff -up ksh-20120801/src/lib/libast/string/strdup.c.badgcc ksh-20120801/src/lib/libast/string/strdup.c

--- ksh-20120801/src/lib/libast/string/strdup.c.badgcc	2012-05-21 15:04:46.000000000 +0200

+++ ksh-20120801/src/lib/libast/string/strdup.c	2015-06-17 10:12:52.693922581 +0200

@@ -50,11 +50,18 @@ __STDPP__directive pragma pp:nohide strd

 #define extern	__EXPORT__

 #endif

+#pragma GCC push_options

+#pragma GCC optimize ("O0")

+

+

 extern char*

 strdup(register const char* s)

 {

 	register char*	t;

 	register int	n;

 	return (s && (t = oldof(0, char, n = strlen(s) + 1, 0))) ? (char*)memcpy(t, s, n) : (char*)0;

 }

+

+#pragma GCC pop_options

+