|
 |
1ff636 |
From 2d5ee8de927f69784d8380c24ca5505b3f6e7672 Mon Sep 17 00:00:00 2001
|
|
|
1ff636 |
From: systemd team <systemd-maint@redhat.com>
|
|
|
1ff636 |
Date: Tue, 14 Apr 2015 15:00:06 +0200
|
|
|
1ff636 |
Subject: [PATCH] build-sys: add configure option to disableLTO/gold
|
|
|
1ff636 |
|
|
|
1ff636 |
---
|
|
|
1ff636 |
configure.ac | 15 ++++++++++-----
|
|
|
1ff636 |
1 file changed, 10 insertions(+), 5 deletions(-)
|
|
|
1ff636 |
|
|
|
1ff636 |
diff --git a/configure.ac b/configure.ac
|
|
|
181b3f |
index 081ed0f6e..9103f9b92 100644
|
|
|
1ff636 |
--- a/configure.ac
|
|
|
1ff636 |
+++ b/configure.ac
|
|
|
1ff636 |
@@ -208,10 +208,15 @@ AS_CASE([$CC], [*clang*],
|
|
|
1ff636 |
-Wno-gnu-variable-sized-type-not-at-end \
|
|
|
1ff636 |
])])
|
|
|
1ff636 |
|
|
|
1ff636 |
-AS_CASE([$CFLAGS], [*-O[[12345sz\ ]]*],
|
|
|
1ff636 |
- [CC_CHECK_FLAGS_APPEND([with_cflags], [CFLAGS], [\
|
|
|
1ff636 |
- -flto -ffat-lto-objects])],
|
|
|
1ff636 |
- [AC_MSG_RESULT([skipping -flto, optimization not enabled])])
|
|
|
1ff636 |
+AC_ARG_ENABLE([lto], AS_HELP_STRING([--disable-lto], [Disable Link time optimization]))
|
|
|
1ff636 |
+AS_IF([test "x$enable_lto" != "xno"], [
|
|
|
1ff636 |
+AS_CASE([$CFLAGS], [*-O[[12345\ ]]*], [
|
|
|
1ff636 |
+ CC_CHECK_FLAGS_APPEND([with_cflags], [CFLAGS], [-flto -ffat-lto-objects])
|
|
|
1ff636 |
+ CC_CHECK_FLAGS_APPEND([with_ldflags], [LDFLAGS],[-Wl,-fuse-ld=gold])
|
|
|
1ff636 |
+ ],
|
|
|
1ff636 |
+[AC_MSG_RESULT([skipping -flto, optimization not enabled])])
|
|
|
1ff636 |
+])
|
|
|
1ff636 |
+
|
|
|
1ff636 |
AC_SUBST([OUR_CFLAGS], "$with_cflags $sanitizer_cflags")
|
|
|
1ff636 |
|
|
|
1ff636 |
AS_CASE([$CFLAGS], [*-O[[12345sz\ ]]*],
|
|
|
1ff636 |
@@ -227,7 +232,7 @@ CC_CHECK_FLAGS_APPEND([with_ldflags], [LDFLAGS], [\
|
|
|
1ff636 |
-Wl,-z,relro \
|
|
|
1ff636 |
-Wl,-z,now \
|
|
|
1ff636 |
-pie \
|
|
|
1ff636 |
- -Wl,-fuse-ld=gold])
|
|
|
1ff636 |
+ ])
|
|
|
1ff636 |
AC_SUBST([OUR_LDFLAGS], "$with_ldflags $sanitizer_ldflags")
|
|
|
1ff636 |
|
|
|
1ff636 |
AC_CHECK_SIZEOF(pid_t)
|