Compiling 32bit on 64bit machine : /usr/bin/ld: cannot find -l<someLibs>

Question

i'm currently trying to compile some code as 32bit on a 64bit Ubuntu 12.04 machine. If i compile the code with the normal make command it all works fine.

Now, in order to compile it as 32bit i added the -m32 option to the C- & CXXFLAGS. Works fine until i get some errors about missing librarys like -lGL , -lGLU , -lX11 , -lXext , -lpng . Okay, the first lib ( -lGL ) I found in /usr/lib32/nvidia-304 which i added via the -L option. The other libs are all found in /usr/lib/i386-linux-gnu but adding that via -L does not solve a thing.

What am I missing here? Thanks in advance!

Here is the full gcc-command leading to the error

gcc myprog.o -m32 (...) -lX11 -lXext -lpng -lm -L/usr/lib/i386-linux-gnu -lGL -L/usr/lib32/nvidia-304 -lpthread -o myprog
/usr/bin/ld: cannot find -lX11
/usr/bin/ld: cannot find -lXext
/usr/bin/ld: cannot find -lpng

Another thing: In the /usr/lib32/nvidia-304 i found a libGL.so PLUS an libGL.la while in /usr/lib/i386-linux-gnu I only can find .so files.

Answer 1

Not sure if it helps, but i had some time ago a similar problem where some symbolic links were missing under /usr/lib/i386-linux-gnu . Perhaps you are facing a similar issue?