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Fix for incompatible /usr/lib/gcc/x86_64-linux-gnu/4.2.3/libstdc++.so error message

Friday, May 30th, 2008 at 12:48 pm | 1,883 views | trackback url

I was recently building a copy of Ice 3.0.1 from ZeroC on x86_64 and ran into the following error message fairly early on:

/usr/bin/ld: skipping incompatible /usr/lib/gcc/x86_64-linux-gnu/4.2.3/libstdc++.so when searching for -lstdc++
/usr/bin/ld: skipping incompatible /usr/lib/gcc/x86_64-linux-gnu/4.2.3/libstdc++.a when searching for -lstdc++
/usr/bin/ld: skipping incompatible /usr/lib/gcc/x86_64-linux-gnu/4.2.3/libstdc++.so when searching for -lstdc++
/usr/bin/ld: skipping incompatible /usr/lib/gcc/x86_64-linux-gnu/4.2.3/libstdc++.a when searching for -lstdc++
/usr/bin/ld: cannot find -lstdc++
collect2: Error: ld returned 1 exit status
make[2]: *** [../../lib/libIceUtil.so.3.0.1] Error 1

But I clearly had libstdc++ version 5 and 6 installed: 

# COLUMNS=50 dpkg -l | grep libstdc
ii  libstdc++5     1:3.3.6-15ubun The GNU Standard C++ Library v3
ii  libstdc++6     4.2.3-2ubuntu7 The GNU Standard C++ Library v3
ii  libstdc++6-4.2 4.2.3-2ubuntu7 The GNU Standard C++ Library v3 (development

This works on i386 and 32-bit Linux, so I sought out a fix, and the fix was simple; install g++-multilib: 

$ sudo apt-get install g++-multilib
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following extra packages will be installed:
  g++-4.2-multilib gcc-4.2-multilib lib32gomp1
Suggested packages:
  lib32stdc++6-4.2-dbg lib32mudflap0
The following NEW packages will be installed:
  g++-4.2-multilib g++-multilib gcc-4.2-multilib lib32gomp1
0 upgraded, 4 newly installed, 0 to remove and 70 not upgraded.
Need to get 1017kB of archives.
After this operation, 4854kB of additional disk space will be used.
Do you want to continue [Y/n]? y

After doing this, you may receive the following error: 

/usr/bin/ld: skipping incompatible /usr/lib/gcc/x86_64-linux-gnu/4.2.3/../../../libbz2.so when searching for -lbz2
/usr/bin/ld: skipping incompatible /usr/lib/gcc/x86_64-linux-gnu/4.2.3/../../../libbz2.a when searching for -lbz2
/usr/bin/ld: skipping incompatible /usr/bin/../lib/libbz2.so when searching for -lbz2
/usr/bin/ld: skipping incompatible /usr/bin/../lib/libbz2.a when searching for -lbz2
/usr/bin/ld: skipping incompatible /usr/lib/libbz2.so when searching for -lbz2
/usr/bin/ld: skipping incompatible /usr/lib/libbz2.a when searching for -lbz2
/usr/bin/ld: cannot find -lbz2
collect2: Error: ld returned 1 exit status
make[2]: *** [../../lib/libIce.so.3.0.1] Error 1

This is due to a similar issue, and the libraries you want are in /usr/lib64/, not /usr/lib.

The fix for this is seems to be buried in Cyrillic on this thread. The fixes proposed there did not work for me, so I had to hack and slash the Make.rules.Linux file and the various Makefile targets below to get that working.

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Last Modified: Friday, May 30th, 2008 @ 12:48

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