#60 cc1plus: error: unrecognized command line option "-Wimplicit-fallthrough"

[Ryan Carsten Schmidt]

graphite2 1.3.5 does not build on Mac OS X 10.6.8 using its customary Apple gcc 4.2.1 compiler. Here is a build log from the MacPorts project's automated Mac OS X 10.6.8 builder:

https://build.macports.org/builders/buildports-snowleopard-x86_64/builds/40471/steps/compile/logs/stdio

The error is:

cc1plus: error: unrecognized command line option "-Wimplicit-fallthrough"

[Ryan Carsten Schmidt]

In your src/CMakeLists.txt I see that on Linux you only add -Wimplicit-fallthrough when the compiler is clang, but on OS X you always add it. If it only works with clang, you should only add it when using clang, on any platform.

[Ryan Carsten Schmidt]

Looks like this hasn't been fixed in 1.3.10 yet.

[Ryan Carsten Schmidt]

https://github.com/silnrsi/graphite/pull/44