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rtld or lang/gcc cannot find libgcc_s.so.1 Steve Kargl Tue Feb 21 11:00:53 2012

Sorry about the cross post, but I can't tell if this
a -current issue of a -ports issue.  Unfortunately,
I updated my freebsd 10.0 systems and the lang/gcc
port during the same timeframe.

I have compiled my math library and several programs
with gfortran, which is installed by lang/gcc (pkg_info 
shows gcc-4.6.2_1).  When I try running the program
I get

troutmask:kargl[210] halfspace
/lib/libgcc_s.so.1: version GCC_4.6.0 required by /home/kargl/bin/halfspace
 not foundtroutmask:kargl[211]

(Note, the annoying absense of a newline character after the error
message, which is a completely different issue.)

I see this problem on both freebsd-i386 and freebsd-amd64.

troutmask:kargl[212] ldd ~/bin/halfspace
/home/kargl/bin/halfspace:
        liblapack.so.4 => /usr/local/lib/liblapack.so.4 (0x2008c3000)
        libblas.so.2 => /usr/local/lib/libblas.so.2 (0x201463000)
        libgfortran.so.3 => /usr/local/lib/gcc46/libgfortran.so.3 (0x20175d000)
        libm.so.5 => /lib/libm.so.5 (0x201a70000)
        libgcc_s.so.1 => /lib/libgcc_s.so.1 (0x201c95000)
        libquadmath.so.0 => /usr/local/lib/gcc46/libquadmath.so.0 (0x201ea2000)
        libc.so.7 => /lib/libc.so.7 (0x2020d6000)
troutmask:kargl[212] ldconfig -r | grep libgcc_s
        29:-lgcc_s.1 => /lib/libgcc_s.so.1
        723:-lgcc_s.1 => /usr/local/lib/gcc46/libgcc_s.so.1

So, it appears that rtld is finding the wrong libgcc_s.so.1 or 
the lang/gcc port is no longer providing sufficient information
for rtld to choose the correct library.

I have reverted revisions 230784, 299768, and 229508 (and
various combinitions of these revisions) from rtld-elf.  The
result does not change the above error.

I can work around the problem by specifying -static during
the building of my programs.  Or, I can work around the
problem by *explicitly* adding '-rpath /usr/local/lib' to the
command line, which I have never had to do.

-- 
Steve
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