How can I turn multiple archive files into one big archive file on Linux (using binutils ar and / or GCC).
I tried doing things like ar rcs libbig.a libsmall1.a libsmall2.a
and it doesn't work (the resulting libbig.a
is empty).
Just tried this on my machine and the problem seems to be that you need to extract the objects from the archives before adding them to the new archive:
ar x libsmall1.a
ar x libsmall2.a
ar rcs libbig.a *.o
Simply running ar rcs like you did produced an archive which contained two .a files, but tools (e.g. nm) were unwilling to look deeper into these files.