As you can tell from line 1 in the following log, my gcc version is evidently greater than 4.7. It's 4.8.1 But near the end it tells me that my GCC version needs to be greater than 4.7. franco@franco-K55A:~/Downloads/webkitgtk-2.4.4$ gcc --version gcc (Ubuntu 4.8.1-2ubuntu1~12.04) 4.8.1 Copyright (C) 2013 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. franco@franco-K55A:~/Downloads/webkitgtk-2.4.4$ ./configure checking build system type... x86_64-unknown-linux-gnu checking host system type... x86_64-unknown-linux-gnu checking for perl... /usr/bin/perl checking for python... /usr/bin/python checking for ruby... /usr/bin/ruby checking for bison... /usr/bin/bison checking for mv... /bin/mv checking for grep... /bin/grep checking for gperf... /usr/bin/gperf checking for flex... /usr/bin/flex checking for gawk... gawk checking for gcc... gcc checking whether the C compiler works... yes checking for C compiler default output file name... a.out checking for suffix of executables... checking whether we are cross compiling... no checking for suffix of object files... o checking whether we are using the GNU C compiler... yes checking whether gcc accepts -g... yes checking for gcc option to accept ISO C89... none needed checking whether gcc understands -c and -o together... yes checking for g++... g++ checking whether we are using the GNU C++ compiler... yes checking whether g++ accepts -g... yes checking for a BSD-compatible install... /usr/bin/install -c checking for special C compiler options needed for large files... no checking for _FILE_OFFSET_BITS value needed for large files... no configure: error: Compiler GCC >= 4.7 or Clang >= 3.3 is required for C++ compilation
<rdar://problem/17690543>
Can you please attach the config.log file? Is the g++ binary of the same version (4.8.1)?
Please provide the config.log file, or the output of this command: gcc -x c++ -dM -E - < /dev/null | grep GNU Thanks!