On 01/24/2013 06:45 PM, David Edelsohn wrote: >> Since switching to C++ inside gcc, it isn't possible to get working gcc/g++ >> binaries installed using native ld on AIX without this patch, as these need >> dynamic libstdc++.a from builddir(!). Even after successful build with the >> workaround from PR55105[1], installed binaries break when removing builddir. > > I build GCC almost daily on AIX and test installation and do not have > this problem.
Hmm - which "oslevel -s" do you use? Here I've tried on 7100-01-05-1228. Also available are 5300-08-09-1013 and 6100-07-05-1228. According to http://www.ibm.com/developerworks/aix/library/au-aix5l-me.html AIX does listen to LD_LIBRARY_PATH since 5.3 now. In case you do have an AIX 5.2 or older, or some other AIX TechLevel that does not use LD_LIBRARY_PATH for whatever reason, to trigger the same problem this patch to toplevel configure should work I guess: --- a/configure +++ b/configure @@ -6978,6 +6978,7 @@ rm -f conftest* # Decide which environment variable is used to find dynamic libraries. case "${host}" in + *-*-aix*) RPATH_ENVVAR=LIBPATH ;; *-*-hpux*) RPATH_ENVVAR=SHLIB_PATH ;; *-*-darwin*) RPATH_ENVVAR=DYLD_LIBRARY_PATH ;; *-*-mingw* | *-*-cygwin ) RPATH_ENVVAR=PATH ;; Actually, I'm wondering why this shouldn't go in anyway for consistency across platforms. > Are you configuring GCC in a special way? Do you set the installation > directory prefix when you configure? I don't believe what I do is something really special. > I build GCC with GCC and have an older version of GCC (including libstdc++) > already installed. Same here, building everything out-of-source. The prerequisites used are: * CONFIG_SHELL=/usr/local/bin/bash 4.1.7 from bullfreeware (symlinks to /opt/freeware/bin/) * /usr/bin/{gcc,g++} 4.6.1 from bullfreeware (symlinks to /opt/freeware/bin/) * /usr/bin/gmake 3.82 from bullfreeware (symlinks to /opt/freeware/bin/) * gmp-5.0.4: as shared library, configured with --prefix=/prereq ABI=32 * mpfr-3.1.1: as shared library, configured with --prefix=/prereq --with-gmp=/prereq * mpfr-3.1.1: as shared library, configured with --prefix=/prereq --with-{gmp,mpfr}=/prereq * gawk-3.1.7, flex-2.5.35, m4-1.4.13 from some Gentoo Prefix instance, nowhere in PATH, thus: export {AWK,FLEX}=/gentoo/prefix/usr/bin/{awk,flex} and this patch: http://gcc.gnu.org/ml/gcc-patches/2013-01/msg00960.html For gcc: * $CONFIG_SHELL configure --prefix=/does/not/exist/yet --with-{gmp,mpfr,mpc}=/prereq \ --enable--languages=c,c++ --disable-werror --disable-nls * gmake bootstrap But unlike you, I do not use --with-boot-ldflags. > I do not understand why you refer to native ld on AIX and what that > has to do with any problem. AIX ld does not understand the -Bstatic/-Bdynamic flags. According to where this very patch adds -bstatic/-bdynamic for AIX ld, the -Bstatic/-Bdymamic flags will be used with GNU ld for -static-libstdc++. So I'm guessing that libstdc++ will be statically linked into gcc,g++,cc1(?) with GNU ld. However, must admit that I've never tried hard enough to get GNU binutils working. > $ dump -H cc1 > > ***Import File Strings*** > INDEX PATH BASE MEMBER > 0 > /tmp/20130123/prev-powerpc-ibm-aix7.1.0.0/libstdc++-v3/src/.libs:/tmp/20130123/prev-powerpc-ibm-aix7.1.0.0/libstdc++-v3/libsupc++/.libs:/usr/gnu/lib:../zlib:/tmp/20130123/./prev-gcc:/usr/lib:/lib > Yes, it refers to the build directory, but it also include > /usr/gnu/lib on the path and a copy of libstdc++.a is in /usr/gnu/lib. Feels like this is because of --with-boot-ldflags=-L/usr/gnu/lib only, or because of gmp,mpfr,mpc being found there. > I often re-link the executable and add -Wl,-blibpath: to set a > narrower search path. Do you do run these re-link steps manually? > With your patch do you configure with any additional options to cause > the libraries to be linked statically? Nope. > The values you set in the patch are correct, but something still does > not make sense with the problem. All things considered, simply feels like your AIX doesn't listen to LD_LIBRARY_PATH. /haubi/
