I take it back. Apparently installing them from the Xcode app gives you the compilers, etc, but not the header files. Using xcode-select --install seems to yield both.
Bill On Tuesday, September 15, 2015 at 4:50:47 PM UTC-7, Bill Janssen wrote: > > I've got this problem right now, with Sage 6.8, on 10.9. And I've run > xcode-select --install from a terminal; it just outputs the line > "xcode-select: note: install requested for command line developer tools" > (which are already installed). > > Help! > > Bill > > On Wednesday, February 5, 2014 at 6:32:23 PM UTC-8, John H Palmieri wrote: >> >> >> >> On Wednesday, February 5, 2014 4:33:58 PM UTC-8, David Roe wrote: >>> >>> I recently upgraded OS X and now run into trouble building Sage. XCode >>> displays the version number as Version 5.0.2 (5A3005). >>> >> >> Maybe see http://trac.sagemath.org/ticket/15783? That is, after >> upgrading Xcode, you need to type >> >> xcode-select --install >> >> from a Terminal. Or have you done that already? >> >> John >> >> >> >>> >>> When I try "make build" in my existing Sage (built before the upgrade), >>> I get the following error: >>> >>> checking for C compiler default output file name... >>> configure: error: C compiler cannot create executables >>> >>> (log available at http://pastebin.com/WQ5ssXVi) >>> I checked my C compiler: gcc -v returns >>> >>> Configured with: --prefix=/Applications/Xcode.app/Contents/Developer/usr >>> --with-gxx-include-dir=/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.9.sdk/usr/include/c++/4.2.1 >>> Apple LLVM version 5.0 (clang-500.2.79) (based on LLVM 3.3svn) >>> Target: x86_64-apple-darwin13.0.0 >>> Thread model: posix >>> >>> and it successfully builds a hello_world.c. So I decided to try >>> building from scratch, using a fresh sage-6.1 tarball. It errored with >>> >>> sed: /usr/include/sys/cdefs.h: No such file or directory >>> >>> (log available at http://pastebin.com/G9Ajqs4n) >>> After running "sudo ln -s >>> /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.9.sdk/usr/include >>> >>> /usr/include/" the build proceeded, with lots of warnings of the form >>> >>> /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../lib/clang/5.0/include/stddef.h:84:24: >>> >>> note: expanded from macro 'offsetof' >>> #define offsetof(t, d) __builtin_offsetof(t, d) >>> ^ >>> In file included from ../../src/gcc/graphite-scop-detection.c:25: >>> In file included from ../../src/gcc/tree-flow.h:27: >>> In file included from ../../src/gcc/basic-block.h:26: >>> In file included from ../../src/gcc/function.h:27: >>> ../../src/gcc/vecprim.h:29:1: warning: using extended field designator >>> is an extension [-Wextended-offsetof] >>> DEF_VEC_ALLOC_I(uchar,gc); >>> ^~~~~~~~~~~~~~~~~~~~~~~~~ >>> ../../src/gcc/vec.h:572:34: note: expanded from macro 'DEF_VEC_ALLOC_I' >>> DEF_VEC_ALLOC_FUNC_I(T,A) >>> \ >>> >>> ^ >>> ../../src/gcc/vec.h:1274:21: note: expanded from macro '\ >>> DEF_VEC_NONALLOC_FUNCS_I' >>> (*vec_, alloc_, offsetof >>> (VEC(T,A),base.vec), \ >>> ^ ~~~~ >>> >>> and some suspicious lines that looked like >>> >>> /usr/bin/ranlib: file: libgcc_eh.a(unwind-sjlj.o) has no symbols >>> /usr/bin/ranlib: file: ../.././gcc/libgcc.a(_trampoline.o) has no symbols >>> >>> Eventually it failed as before, with >>> >>> checking for C compiler default output file name... >>> configure: error: in >>> `/Users/roed/sage/sage6/local/var/tmp/sage/build/gcc-4.7.3.p1/gcc-build/x86_64-apple-darwin13.0.0/libgomp': >>> configure: error: C compiler cannot create executables >>> See `config.log' for more details. >>> make[5]: *** [configure-stage1-target-libgomp] Error 77 >>> make[4]: *** [stage1-bubble] Error 2 >>> make[3]: *** [all] Error 2 >>> >>> (log available at http://people.ucalgary.ca/~roed/gcc-4.7.3.p1.log, >>> since it's too big for pastebin) >>> >>> Something appears to be screwed up with my development environment, but >>> I'm not sure what. Any ideas? >>> David >>> >> -- You received this message because you are subscribed to the Google Groups "sage-devel" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-devel@googlegroups.com. Visit this group at http://groups.google.com/group/sage-devel. For more options, visit https://groups.google.com/d/optout.
