[xoreos-git] [xoreos/xoreos-tools] c04e11: BUILD: Extend boost.m4 to recognize gcc 7.5

[Sven Hesse]

  Branch: refs/heads/traviswarnings
  Home:   https://github.com/xoreos/xoreos-tools
  Commit: c04e11ca7ea93848d4dcd4c56c1d1ec370ccda0c
      https://github.com/xoreos/xoreos-tools/commit/c04e11ca7ea93848d4dcd4c56c1d1ec370ccda0c
  Author: Sven Hesse <drmccoy at drmccoy.de>
  Date:   2020-08-27 (Thu, 27 Aug 2020)

  Changed paths:
    M m4/boost.m4

  Log Message:
  -----------
  BUILD: Extend boost.m4 to recognize gcc 7.5


  Commit: 07fa32dbee1e5106f95f449605727088f524aa64
      https://github.com/xoreos/xoreos-tools/commit/07fa32dbee1e5106f95f449605727088f524aa64
  Author: Sven Hesse <drmccoy at drmccoy.de>
  Date:   2020-08-27 (Thu, 27 Aug 2020)

  Changed paths:
    M CMakeLists.txt
    M configure.ac

  Log Message:
  -----------
  BUILD: Disable -Wunused-const-variable

This one is enabled by -Wall in Clang, but not in gcc (at least not
for C++). The warning doesn't make sense for us, especially since we
sometimes leave in unused static const values for documentation
purposes, so let's disable it.


  Commit: b25ae17c1bfab4c2336ae45817dcfb88728b1cf7
      https://github.com/xoreos/xoreos-tools/commit/b25ae17c1bfab4c2336ae45817dcfb88728b1cf7
  Author: Sven Hesse <drmccoy at drmccoy.de>
  Date:   2020-08-27 (Thu, 27 Aug 2020)

  Changed paths:
    M CMakeLists.txt
    M configure.ac

  Log Message:
  -----------
  BUILD: Disable -Wtautological-unsigned-enum-zero-compare

Whether an enum is signed or unsigned is implementation defined, so
this warning doesn't make any sense for us.


  Commit: 0c5bb2e943dea4cdf4d51918325b0cdec96a7afd
      https://github.com/xoreos/xoreos-tools/commit/0c5bb2e943dea4cdf4d51918325b0cdec96a7afd
  Author: Sven Hesse <drmccoy at drmccoy.de>
  Date:   2020-08-27 (Thu, 27 Aug 2020)

  Changed paths:
    M .travis.yml

  Log Message:
  -----------
  TRAVIS: Try suppressing warnings in system includes

For two reasons, SDL2 when compiling with Clang and Boost.Locale on
macOS.

Clang ignores the "/* fallthrough */" comments in the SDL2 includes
and then complains about unmarked switch-case-fallthroughs. The SDL2
search script doesn't mark the SDL2 directory as system.

The Travis CI macOS build VMs have Boost.Locale preinstalled in
/usr/local/ and this is not marked as a system include. The version
preinstalled used std::auto_ptr and Clang notes that this is
deprecated.


Compare: https://github.com/xoreos/xoreos-tools/compare/c04e11ca7ea9%5E...0c5bb2e943de