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42 lines
1.5 KiB
42 lines
1.5 KiB
From 2d5ee8de927f69784d8380c24ca5505b3f6e7672 Mon Sep 17 00:00:00 2001 |
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From: systemd team <systemd-maint@redhat.com> |
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Date: Tue, 14 Apr 2015 15:00:06 +0200 |
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Subject: [PATCH] build-sys: add configure option to disableLTO/gold |
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--- |
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configure.ac | 15 ++++++++++----- |
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1 file changed, 10 insertions(+), 5 deletions(-) |
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diff --git a/configure.ac b/configure.ac |
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index 081ed0f6eb..9103f9b923 100644 |
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--- a/configure.ac |
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+++ b/configure.ac |
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@@ -208,10 +208,15 @@ AS_CASE([$CC], [*clang*], |
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-Wno-gnu-variable-sized-type-not-at-end \ |
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])]) |
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-AS_CASE([$CFLAGS], [*-O[[12345sz\ ]]*], |
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- [CC_CHECK_FLAGS_APPEND([with_cflags], [CFLAGS], [\ |
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- -flto -ffat-lto-objects])], |
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- [AC_MSG_RESULT([skipping -flto, optimization not enabled])]) |
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+AC_ARG_ENABLE([lto], AS_HELP_STRING([--disable-lto], [Disable Link time optimization])) |
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+AS_IF([test "x$enable_lto" != "xno"], [ |
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+AS_CASE([$CFLAGS], [*-O[[12345\ ]]*], [ |
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+ CC_CHECK_FLAGS_APPEND([with_cflags], [CFLAGS], [-flto -ffat-lto-objects]) |
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+ CC_CHECK_FLAGS_APPEND([with_ldflags], [LDFLAGS],[-Wl,-fuse-ld=gold]) |
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+ ], |
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+[AC_MSG_RESULT([skipping -flto, optimization not enabled])]) |
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+]) |
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+ |
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AC_SUBST([OUR_CFLAGS], "$with_cflags $sanitizer_cflags") |
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AS_CASE([$CFLAGS], [*-O[[12345sz\ ]]*], |
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@@ -227,7 +232,7 @@ CC_CHECK_FLAGS_APPEND([with_ldflags], [LDFLAGS], [\ |
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-Wl,-z,relro \ |
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-Wl,-z,now \ |
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-pie \ |
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- -Wl,-fuse-ld=gold]) |
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+ ]) |
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AC_SUBST([OUR_LDFLAGS], "$with_ldflags $sanitizer_ldflags") |
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AC_CHECK_SIZEOF(pid_t)
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