Hello!
libcpp/lex.c includes "../gcc/config/i386/cpuid.h", and is picked up
by the system compiler during stage1. Recently, cpuid.h was changed to
account for %ebx changes and now uses "b" asm constraint for i686 even
with __PIC__.
Attached patch solves this issue by including system <cpuid.h> for GCC < 5.0.
2014-11-19 Uros Bizjak <ubiz...@gmail.com>
PR target/63966
* lex.c [__i386__ || __x86_64__]: Include system <cpuid.h> for
GCC_VERSION < 5000.
Patch was bootstrapped on x86_64-linux-gnu, Fedora 20. Patch will be
committed to mainline in a day or two, preferably after someone tests
it on Darwin.
Uros.
Index: lex.c
===================================================================
--- lex.c (revision 217789)
+++ lex.c (working copy)
@@ -471,7 +471,11 @@ search_line_sse42 (const uchar *s, const uchar *en
/* Check the CPU capabilities. */
+#if (GCC_VERSION >= 5000)
#include "../gcc/config/i386/cpuid.h"
+#else
+#include <cpuid.h>
+#endif
typedef const uchar * (*search_line_fast_type) (const uchar *, const uchar *);
static search_line_fast_type search_line_fast;
