On Wed, Jan 06, 2010 at 02:58:16PM +0800, Zuxy Meng wrote: > As libfaac uses __stdcall calling convention ifdef WIN32 but GCC under > -std=c99 doesn't?have _WIN32 defined. Changing -std=c99 to -std=gnu99 > avoids the problem. Is it an acceptable change? In general: no. Just for libfaac: maybe. Diego