How to compile a 32-bit binary on a 64-bit linux machine with gcc/cmake

linux gcc 64-bit cmake 32-bit
dala picture dala · Aug 13, 2009 · Viewed 166.8k times · Source

Is it possible to compile a project in 32-bit with cmake and gcc on a 64-bit system? It probably is, but how do I do it?

When I tried it the "ignorant" way, without setting any parameters/flags/etc, just setting LD_LIBRARY_PATH to find the linked libraries in ~/tools/lib it seems to ignore it and only look in subdirectories named lib64.

Answer

caf picture caf · Aug 13, 2009 
export CFLAGS=-m32

Related questions

gcc: Compile a 64-bit binary on 32-bit platform

Is it possible to compile a 64-bit binary on a 32-bit Linux platform using gcc?

Read More
How to compile a 32-bit binary on a 64-bit linux machines without touching the CFLAGS environment variable

The solution in How to compile a 32-bit binary on a 64-bit linux machine with gcc/cmake is not possible because i use 3rd party software and other stuff which is using the CFLAGS variable already. And patching their makefiles …

Read More
Is there any way to get 64-bit time_t in 32-bit programs in Linux?

On Windows I can call: _time32(__time32_t); // to get 32-bit time_t _time64(__time64_t); // to get 64-bit time_t (both in 32 and 64-bit programs) Is there any way do this in Linux (compiling with GCC)?

Read More