On Sat, 16 Jun 2012 11:49:50 +0800, Xiaofan Chen said: >clang: warning: argument unused during compilation: '-std=gnu99' >make[2]: Nothing to be done for `all-am'. > >-std=gnu99 warning does not seem to be a problem to me. >When using Apple's llvm based gcc 4.2.1 (default) and the >Apple gcc 4.2.1, no warnings.
clang can be invoked both to compile and link. For compiling, -std=gnu99 has meaning, but for linking it does not. The warning you see is telling you that you are specifying -std=gnu99 when linking, which does nothing. gcc silently ignores that flag when linking, I believe. Perhaps this can be fixed in libusbx's makefiles somehow... Also, does libusbx actually need GNU extensions? Does it build with -std=c99 instead? -- ____________________________________________________________ Sean McBride, B. Eng s...@rogue-research.com Rogue Research www.rogue-research.com Mac Software Developer Montréal, Québec, Canada ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _______________________________________________ libusbx-devel mailing list libusbx-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/libusbx-devel
