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83 lines
2.7 KiB
Diff
83 lines
2.7 KiB
Diff
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[As applied to 2.15]
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commit 3857022a761ea7251f8e5c0e45d382ebc3e34cf9
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Author: Ulrich Drepper <drepper@gmail.com>
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Date: Sun Jan 8 09:21:09 2012 -0500
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No need for test for __builtin_expect
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diff -urpN glibc-2.15.orig/configure glibc-2.15/configure
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--- glibc-2.15.orig/configure 2017-02-08 12:47:52.580858002 -0800
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+++ glibc-2.15/configure 2017-02-08 13:01:40.682870318 -0800
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@@ -7185,38 +7185,6 @@ if test "$libc_cv_c_asmcr0_bug" != 'no';
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fi
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fi
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-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for __builtin_expect" >&5
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-$as_echo_n "checking for __builtin_expect... " >&6; }
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-if ${libc_cv_gcc_builtin_expect+:} false; then :
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- $as_echo_n "(cached) " >&6
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-else
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- cat > conftest.c <<EOF
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-#line $LINENO "configure"
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-int foo (int a)
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-{
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- a = __builtin_expect (a, 10);
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- return a == 10 ? 0 : 1;
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-}
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-EOF
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-if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS -nostdlib -nostartfiles
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- -o conftest conftest.c -lgcc >&5'
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- { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
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- (eval $ac_try) 2>&5
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- ac_status=$?
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- $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
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- test $ac_status = 0; }; }; then
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- libc_cv_gcc_builtin_expect=yes
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-else
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- libc_cv_gcc_builtin_expect=no
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-fi
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-rm -f conftest*
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-fi
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-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_gcc_builtin_expect" >&5
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-$as_echo "$libc_cv_gcc_builtin_expect" >&6; }
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-if test "$libc_cv_gcc_builtin_expect" = no; then
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- as_fn_error $? "support for __builtin_expect needed" "$LINENO" 5
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-fi
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-
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for __builtin_memset" >&5
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$as_echo_n "checking for __builtin_memset... " >&6; }
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if ${libc_cv_gcc_builtin_memset+:} false; then :
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diff -urpN glibc-2.15.orig/configure.in glibc-2.15/configure.in
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--- glibc-2.15.orig/configure.in 2017-02-08 12:47:52.580858002 -0800
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+++ glibc-2.15/configure.in 2017-02-08 13:01:17.638580410 -0800
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@@ -2098,28 +2098,6 @@ if test "$libc_cv_c_asmcr0_bug" != 'no';
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fi
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fi
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-dnl Check whether compiler understands __builtin_expect.
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-AC_CACHE_CHECK(for __builtin_expect, libc_cv_gcc_builtin_expect,
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-[cat > conftest.c <<EOF
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-#line $LINENO "configure"
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-int foo (int a)
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-{
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- a = __builtin_expect (a, 10);
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- return a == 10 ? 0 : 1;
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-}
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-EOF
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-dnl No \ in command here because it ends up inside ''.
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-if AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS -nostdlib -nostartfiles
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- -o conftest conftest.c -lgcc >&AS_MESSAGE_LOG_FD]); then
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- libc_cv_gcc_builtin_expect=yes
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-else
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- libc_cv_gcc_builtin_expect=no
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-fi
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-rm -f conftest*])
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-if test "$libc_cv_gcc_builtin_expect" = no; then
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- AC_MSG_ERROR([support for __builtin_expect needed])
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-fi
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-
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AC_CACHE_CHECK(for __builtin_memset, libc_cv_gcc_builtin_memset, [dnl
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cat > conftest.c <<\EOF
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void zero (void *x)
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