x86_64 library file incompatible with i386

mahmoodn · 02-10-2013, 06:40 AM

When I want to install gcc 4.1.2 on ubuntu 12.04 (x86_64), I get this error:

Code:

/usr/bin/ld: skipping incompatible /usr/lib/x86_64-linux-gnu/libc.so when searching for -lc
/usr/bin/ld: skipping incompatible /usr/lib/x86_64-linux-gnu/libc.a when searching for -lc
/usr/bin/ld: i386:x86-64 architecture of input file `/usr/lib/x86_64-linux-gnu/crti.o' is incompatible with i386 output
/usr/bin/ld: i386:x86-64 architecture of input file `/usr/lib/x86_64-linux-gnu/crtn.o' is incompatible with i386 output
collect2: ld returned 1 exit status
make[3]: *** [32/libgcc_s.so] Error 1
make[3]: *** Waiting for unfinished jobs....
make[3]: Leaving directory `/opt/gcc-4.1.2/host-x86_64-unknown-linux-gnu/gcc'

The solutions are here http://gcc.gnu.org/ml/gcc-help/2009-05/msg00238.html
The second method works for me but why the first solution doesn't work. Why? It is stated that the 32bit libraries should be installed.

Code:

# dpkg -l | grep ia32
ii  ia32-libs                              20090808ubuntu36                        ia32 shared libraries - transitional package
ii  ia32-libs-multiarch:i386               20090808ubuntu36                        Multi-arch versions of former ia32-libraries

How can I fix that without disabling multiarch?

äxl · 02-17-2013, 03:50 AM

Quote:

Originally Posted by Michael Meissner

The error occurs in building 32-bit libgcc, which is produced in the normal x86_64 builds. Gcc has the concept of multi-lib, where it wants to support people who use incompatible options, such as -m32 or -m64. It builds both libraries, and then selects the appropriate library at link time, depending on the options.

You need to either:
1) Install the 32-bit development libraries in the appropriate places; (or)

2) Configure your compiler with --disable-multilib to prevent the 32-bit libgcc from being built.

He says development libraries. In Debian here is also a ia32-libs-dev and configure doesn't try to deliver 32-bit.
Ubuntu has ia32-libs-dev but I rather think you need every -dev package of the things you want to build.