True, but -m32 wouldn't work if 32-bit compat libraries aren't installed, etc. Overall I think the best solution here is to get EMCONFIGURE_JS on by default, so configure tests the exact right setup, and for it to give clear errors where it fails, so people know what to modify in configure scripts.
- Alon On Fri, Feb 6, 2015 at 6:47 PM, Bruce Mitchener <[email protected]> wrote: > On Sat, Feb 7, 2015 at 9:40 AM, Alon Zakai <[email protected]> wrote: > >> This is a limitation of how we "fake" configure results. We invoke the >> native compiler but with our libraries and defines, so this can fail if >> types are different. The reason we do this is that configure can do >> anything natively - read/write to a file, open a process, etc., stuff we >> can't do in compiled JS. >> >> There is an EMCONFIGURE_JS env var you can set, to force use of JS, which >> might help here. >> >> Perhaps we should default to EMCONFIGURE_JS, and force people to modify >> configure scripts the other way - but either way, there will be manual work. >> > > In this case, you could use the right flags with clang to request a 32 bit > build. > > On Linux and FreeBSD, pass -m32, on OS X, pass -arch i386. > > Seems like you could do that in this chunk: > > env['HOST_CC'] = CLANG_CC > env['HOST_CXX'] = CLANG_CPP > env['HOST_CFLAGS'] = "-W" #if set to nothing, CFLAGS is used, which we > don't want > env['HOST_CXXFLAGS'] = "-W" #if set to nothing, CXXFLAGS is used, > which we don't want > env['PKG_CONFIG_LIBDIR'] = path_from_root('system', 'local', 'lib', > 'pkgconfig') + os.path.pathsep + path_from_root('system', 'lib', > 'pkgconfig') > env['PKG_CONFIG_PATH'] = os.environ.get ('EM_PKG_CONFIG_PATH') or '' > env['EMSCRIPTEN'] = path_from_root() > > - Bruce > > -- > You received this message because you are subscribed to the Google Groups > "emscripten-discuss" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "emscripten-discuss" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
