Hmm. my gcc / clang version is 11.0 is newer. I wonder why it is trying to install gcc?
$ gcc --version Configured with: --prefix=/Applications/Xcode.app/Contents/Developer/usr --with-gxx-include-dir=/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include/c++/4.2.1 Apple clang version 11.0.0 (clang-1100.0.33.17) Target: x86_64-apple-darwin18.7.0 Thread model: posix InstalledDir: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin > On May 11, 2020, at 2:17 PM, 'Justin C. Walker' via sage-devel > <sage-devel@googlegroups.com> wrote: > > > >> On May 11, 2020, at 12:08 , Robert Baertsch <robert.baert...@skytran.com> >> wrote: >> >> [gcc-7.4.0] In file included from >> /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include/sys/sysctl.h:83:0, >> [gcc-7.4.0] from ../../src/gcc/config/darwin-driver.c:30: >> [gcc-7.4.0] >> /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include/sys/ucred.h:94:2: >> error: '_Atomic' does not name a type >> [gcc-7.4.0] _Atomic u_long cr_ref; /* reference count */ >> [gcc-7.4.0] ^~~~~~~ >> [gcc-7.4.0] make[6]: *** [darwin-driver.o] Error 1 >> [gcc-7.4.0] make[5]: *** [all-stage2-gcc] Error 2 >> [gcc-7.4.0] make[4]: *** [stage2-bubble] Error 2 >> [gcc-7.4.0] make[3]: *** [all] Error 2 > > FWIW, I built sage 8.9 on 10.14.6 without problems, and sage’s gcc was not > built. I have Xcode 10.2.1 installed, and gcc tells me that it’s > > Configured with: --prefix=/Applications/Xcode.app/Contents/Developer/usr > --with-gxx-include-dir=/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.14.sdk/usr/include/c++/4.2.1 > Apple LLVM version 10.0.1 (clang-1001.0.46.4) > Target: x86_64-apple-darwin18.7.0 > Thread model: posix > InstalledDir: > /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin > > The fact that the installation is trying to build gcc means that either you > don’t have it installed, or it’s way out of date. I think gcc 7.4 is way old > for macOS 10.14. > > You could try installing the command-line tools for Xcode 10.2.1 and see what > happens. > > HTH > > Justin > > -- > Justin C. Walker, Curmudgeon-At-Large > Institute for the Absorption of Federal Funds > -------- > If you're not confused, > You're not paying attention > -------- > > > > -- > 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 view this discussion on the web visit > https://groups.google.com/d/msgid/sage-devel/7A7D01F2-FB68-48B8-99C2-62D261603A87%40mac.com. -- 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 view this discussion on the web visit https://groups.google.com/d/msgid/sage-devel/948660E5-F515-4E9C-B435-F63FB2C84F38%40skytran.com.