Hoernchen has uploaded this change for review. ( https://gerrit.osmocom.org/c/osmo-iuh/+/17797 )
Change subject: fix libtool issue with clang and sanitizer ...................................................................... fix libtool issue with clang and sanitizer As pointed out at https://github.com/libexpat/libexpat/issues/312 libtool does not play nice with clang sanitizer builds at all. For those builds LD shoud be set to clang too (and LDFLAGS needs the sanitizer flags as well), because the clang compiler driver knows how linking to the sanitizer libs works, but then at a later stage libtool fails to actually produce the shared libraries and the build fails. This is fixed by this patch. Addtionally LD_LIBRARY_PATH has no effect on conftest runs during configure time, so the rpath needs to be set to the asan library path to ensure the configure run does not fail due to a missing asan library, i.e.: SANS='-fsanitize=memory -fsanitize-recover=all -shared-libsan' export CC=clang-10 ASANPATH=$(dirname `$CC -print-file-name=libclang_rt.asan-x86_64.so`) export LDFLAGS="-Wl,-rpath,$ASANPATH $SANS $LDFLAGS" Change-Id: I74cdca5c8bd5a32b6fb05906280cc1cdd64e9369 --- M configure.ac 1 file changed, 5 insertions(+), 0 deletions(-) git pull ssh://gerrit.osmocom.org:29418/osmo-iuh refs/changes/97/17797/1 diff --git a/configure.ac b/configure.ac index 6328975..00f3bd1 100644 --- a/configure.ac +++ b/configure.ac @@ -26,6 +26,11 @@ AC_PROG_CC AC_PROG_INSTALL +dnl patching ${archive_cmds} to affect generation of file "libtool" to fix linking with clang (issue #312) +AS_CASE(["$LD"],[*clang*], + [AS_CASE(["${host_os}"], + [*linux*],[archive_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'])]) + dnl check for pkg-config (explained in detail in libosmocore/configure.ac) AC_PATH_PROG(PKG_CONFIG_INSTALLED, pkg-config, no) if test "x$PKG_CONFIG_INSTALLED" = "xno"; then -- To view, visit https://gerrit.osmocom.org/c/osmo-iuh/+/17797 To unsubscribe, or for help writing mail filters, visit https://gerrit.osmocom.org/settings Gerrit-Project: osmo-iuh Gerrit-Branch: master Gerrit-Change-Id: I74cdca5c8bd5a32b6fb05906280cc1cdd64e9369 Gerrit-Change-Number: 17797 Gerrit-PatchSet: 1 Gerrit-Owner: Hoernchen <ew...@sysmocom.de> Gerrit-MessageType: newchange
