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| author |  Thomas Petazzoni <thomas.petazzoni@free-electrons.com> | 2013-08-30 13:08:38 +0200 |
|---|---|---|
| committer |  Peter Korsgaard <jacmet@sunsite.dk> | 2013-08-30 14:10:50 +0200 |
| commit | eb53a09fd51da80ef3f35cbbaf11a8068bbaf38f (patch) | |
| tree | 11fdd1dd8a4444ecffe25fa6b96b3ea0af32a71d | |
| parent | 014dd9b15304923de9bd3a7aa0e4778b0fa11393 (diff) | |
| download | buildroot-eb53a09fd51da80ef3f35cbbaf11a8068bbaf38f.tar.gz buildroot-eb53a09fd51da80ef3f35cbbaf11a8068bbaf38f.tar.bz2 | |
strongswan: fix build failure when host == target architecture
The strongswan configure.in uses the AC_LIB_PREFIX macro, which adds
--with-lib-prefix and --without-lib-prefix options, and which, by
default assumes that adding ${prefix}/lib to LDFLAGS and
${prefix}/include to CPPFLAGS is a good idea. Obviously, when
cross-compiling, it is definitely not a good idea.
In the specific case of strongswan, the result is that when testing if
the backtrace() function was available, the small C program was being
built and linked with -L/usr/lib. So when the host architecture and
target architecture are identical, it may find the backtrace()
function in the host C library, without looking at the target C
library:
configure:16457: /home/test/outputs/a637f916962b6136dd6dd4f4b9ff4e1cab568ef3/output/host/usr/bin/x86_64-unknown-linux-uclibc-gcc -o conftest -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -pipe -Os -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -L/usr/lib conftest.c >&5
/home/test/outputs/a637f916962b6136dd6dd4f4b9ff4e1cab568ef3/output/host/opt/ext-toolchain/bin/../lib/gcc/x86_64-unknown-linux-uclibc/4.6.3/../../../../x86_64-unknown-linux-uclibc/bin/ld: warning: libc.so.0, needed by /home/test/outputs/a637f916962b6136dd6dd4f4b9ff4e1cab568ef3/output/host/opt/ext-toolchain/bin/../lib/gcc/x86_64-unknown-linux-uclibc/4.6.3/../../../../x86_64-unknown-linux-uclibc/lib/../lib64/libgcc_s.so, may conflict with libc.so.6
Passing --without-lib-prefix prevents this default behavior from
happening, and no stupid value is added to CPPFLAGS or LDFLAGS.
Fixes:
http://autobuild.buildroot.net/results/a637f916962b6136dd6dd4f4b9ff4e1cab568ef3/
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
| -rw-r--r-- | package/strongswan/strongswan.mk | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/package/strongswan/strongswan.mk b/package/strongswan/strongswan.mk index 3444f9281b..aa63d0d701 100644 --- a/package/strongswan/strongswan.mk +++ b/package/strongswan/strongswan.mk @@ -11,6 +11,7 @@ STRONGSWAN_LICENSE = GPLv2+ STRONGSWAN_LICENSE_FILES = COPYING LICENSE STRONGSWAN_DEPENDENCIES = host-pkgconf STRONGSWAN_CONF_OPT += \ + --without-lib-prefix \ --enable-pkcs11=yes \ --enable-kernel-netlink=$(if $(BR2_INET_IPV6),yes,no) \ --enable-socket-default=$(if $(BR2_INET_IPV6),yes,no) \ |