From 3857022a761ea7251f8e5c0e45d382ebc3e34cf9 Mon Sep 17 00:00:00 2001
From: Ulrich Drepper <drepper@gmail.com>
Date: Sun, 8 Jan 2012 09:21:09 -0500
Subject: [PATCH]  No need for test for __builtin_expect

---
 ChangeLog    |  1 +
 configure    | 32 --------------------------------
 configure.in | 22 ----------------------
 3 files changed, 1 insertion(+), 54 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index c8d8db7eec..ff53953e72 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -4,6 +4,7 @@
 	No need to check for signed size_t anymore.
 	Don't set libc_commonpagesize and libc_relro_required here for Alpha
 	and IA-64.
+	Remove __builtin_expect test because we require at least gcc 3.4.
 
 	* aclocal.m4: Likewise.
 
diff --git a/configure b/configure
index 16fb1a0ac3..e090f16e1d 100755
--- a/configure
+++ b/configure
@@ -6962,38 +6962,6 @@ if test "$libc_cv_c_asmcr0_bug" != 'no'; then
 fi
 fi
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for __builtin_expect" >&5
-$as_echo_n "checking for __builtin_expect... " >&6; }
-if ${libc_cv_gcc_builtin_expect+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  cat > conftest.c <<EOF
-#line $LINENO "configure"
-int foo (int a)
-{
-  a = __builtin_expect (a, 10);
-  return a == 10 ? 0 : 1;
-}
-EOF
-if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS -nostdlib -nostartfiles
-			    -o conftest conftest.c -lgcc >&5'
-  { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
-  (eval $ac_try) 2>&5
-  ac_status=$?
-  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
-  test $ac_status = 0; }; }; then
-  libc_cv_gcc_builtin_expect=yes
-else
-  libc_cv_gcc_builtin_expect=no
-fi
-rm -f conftest*
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_gcc_builtin_expect" >&5
-$as_echo "$libc_cv_gcc_builtin_expect" >&6; }
-if test "$libc_cv_gcc_builtin_expect" = no; then
-  as_fn_error $? "support for __builtin_expect needed" "$LINENO" 5
-fi
-
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for __builtin_memset" >&5
 $as_echo_n "checking for __builtin_memset... " >&6; }
 if ${libc_cv_gcc_builtin_memset+:} false; then :
diff --git a/configure.in b/configure.in
index 30ad9628db..15f925e46a 100644
--- a/configure.in
+++ b/configure.in
@@ -1964,28 +1964,6 @@ if test "$libc_cv_c_asmcr0_bug" != 'no'; then
 fi
 fi
 
-dnl Check whether compiler understands __builtin_expect.
-AC_CACHE_CHECK(for __builtin_expect, libc_cv_gcc_builtin_expect,
-[cat > conftest.c <<EOF
-#line $LINENO "configure"
-int foo (int a)
-{
-  a = __builtin_expect (a, 10);
-  return a == 10 ? 0 : 1;
-}
-EOF
-dnl No \ in command here because it ends up inside ''.
-if AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS -nostdlib -nostartfiles
-			    -o conftest conftest.c -lgcc >&AS_MESSAGE_LOG_FD]); then
-  libc_cv_gcc_builtin_expect=yes
-else
-  libc_cv_gcc_builtin_expect=no
-fi
-rm -f conftest*])
-if test "$libc_cv_gcc_builtin_expect" = no; then
-  AC_MSG_ERROR([support for __builtin_expect needed])
-fi
-
 AC_CACHE_CHECK(for __builtin_memset, libc_cv_gcc_builtin_memset, [dnl
 cat > conftest.c <<\EOF
 void zero (void *x)
-- 
2.43.5