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