Auto-detect C++ extensions needed to build #179
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This was referenced Jul 9, 2024
stanhu
commented
Jul 9, 2024
clang requires manually enabling C++ extensions via `-std=c++<version>`, and ICU 75.1 needs C++17. Auto-detect the flags that are needed to build. Relates to brianmario#172 Closes brianmario#177
C++ compilation failed without these explicit casts.
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Now that a C++ compiler is used to support later versions of ICU, we need to surround all C code with `extern "C"` to avoid name mangling that would cause issues with symbol resolution on macOS.
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Certain versions of clang (e.g. 15.0 on macOS) require manually enabling C++ extensions via
-std=c++<version>, and ICU 75.1 needs C++17. Auto-detect the flags that are needed to build.The default C++ version depends on the version of clang:
clang 15.0.0 (macOS Sonoma)
On clang 18.1.8 (shipped with
archlinux/archlinux:base):Relates to #172
Closes #177