From Bugzilla Helper: User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:0.9.2) Gecko/20010701 Description of problem: GCC Warns continuosly :warning: pasting "": "" and ""no AZT2320 based soundcards found\n"" does not give a valid preprocessing token warning: extra tokens at end of #undef directive How reproducible: Always Steps to Reproduce: 1.Compile latest alsa sound driver package 2. 3. Actual Results: Warnings Expected Results: Clean compile Additional info: gcc -v :Reading specs from /usr/lib/gcc-lib/i386-redhat-linux/2.96/specs gcc version 2.96 20000731 (Red Hat Linux 7.1 2.96-94)
The ISO C standard sais if pasting two tokens together does not produce a valid preprocessing token (and pasting together 2 string literals does not), the result is undefined, so this warning is really appropriate. It is ALSA which should be fixed, so I'd suggest you contact ALSA authors and make them fix their code.