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glibc will not compile with -flto
- From: John Frankish <j-frankish at slb dot com>
- To: "gcc-help at gcc dot gnu dot org" <gcc-help at gcc dot gnu dot org>
- Date: Fri, 29 Mar 2013 10:35:54 +0000
- Subject: glibc will not compile with -flto
Using binutils-2.23.1 and gcc-4.7.2, both compiled with "--enable-lto" to compile glibc-2.17
Removing "-flto -fuse-linker-plugin" removes the error below, but how do I compile glibc with -flto?
John
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CC="gcc -flto -fuse-linker-plugin -march=i486 -mtune=i686 -Os -pipe" CXX="g++ -flto -fuse-linker-plugin -march=i486 -mtune=i686 -Os -pipe -fno-exceptions -fno-rtti" ../glibc-2.17/configure --prefix=/usr --disable-profile --enable-kernel=3.0.21 --libexecdir=/usr/lib/glibc --cache-file=config.cache
checking whether to put _rtld_local into .sdata section... no
checking for .preinit_array/.init_array/.fini_array support... no
configure: error: Need linker with .init_array/.fini_array support.
Config.log:
configure:6121: checking for .preinit_array/.init_array/.fini_array support
configure:6137: gcc -flto -fuse-linker-plugin -march=i486 -mtune=i686 -Os -pipe -g -o conftest
conftest.c -static -nostartfiles -nostdlib
1>&5
collect2: fatal error: cannot find 'ld'
compilation terminated.
configure:6140: $? = 1
configure:6153: result: no
configure:6156: error: Need linker with .init_array/.fini_array support.