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authorUlrich Drepper <drepper@redhat.com>1998-10-26 17:59:59 +0000
committerUlrich Drepper <drepper@redhat.com>1998-10-26 17:59:59 +0000
commita8eab8b1402ceff505b0cdee440c02a72cc4307d (patch)
tree8e80293b123361be225adf8e0048ffcdb866349d /include
parent665a657ef1aec8a605aa33e46a4f701e2fd9eba3 (diff)
downloadglibc-a8eab8b1402ceff505b0cdee440c02a72cc4307d.tar.gz
Update.
* include/libc-symbols.h: If HAVE_BUILTIN_EXPECT is not defined define __builtin_expect as a macro substituting to the first argument. * config.h.in: Define HAVE_BUILTIN_EXPECT. * configure.in: Add test for __builtin_expect.
Diffstat (limited to 'include')
-rw-r--r--include/libc-symbols.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/include/libc-symbols.h b/include/libc-symbols.h
index 4684cb7f4a..5d15791fda 100644
--- a/include/libc-symbols.h
+++ b/include/libc-symbols.h
@@ -226,6 +226,11 @@ extern const char _libc_intl_domainname[];
# define internal_function /* empty */
#endif
+/* Prepare for the case that `__builtin_expect' is not available. */
+#ifndef HAVE_BUILTIN_EXPECT
+# define __builtin_expect(expr, val) (expr)
+#endif
+
/* When a reference to SYMBOL is encountered, the linker will emit a
warning message MSG. */
#ifdef HAVE_GNU_LD