Fails with clang: '-fstrength-reduce' is not supported

[yurivict]

cc: error: optimization flag '-fstrength-reduce' is not supported [-Werror,-Wignored-optimization-argument]

[tresf]

This is an upstream bug and should be reported there: https://github.com/tomszilagyi/tap-plugins/blob/master/Makefile#L38, or better yet, send the author a PR.

I just patched this with CMake, I don't know make, so I'll leave the cmake patch here as an example. Note, I'm not sure if strength-reduce has been replaced with something else on the Clang side of the fence, this just blindly removes it.

I've noticed this change occurred (at least on the MacOS version of Clang) between XCode 8.2 and XCode 8.3

# CMAKE EXAMPLE ONLY - ADAPT TO MAKE
IF(NOT CMAKE_CXX_COMPILER_ID MATCHES "Clang")
   SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fstrength-reduce")
ENDIF()

[tomscii]

Fixed in latest upstream master (tomszilagyi/tap-plugins commit 94aeb04).