Strip build directory prefix in the __FILE__ macro #664
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Various macros use __FILE__ to embed the source file name in errors/logs. However, the full path is encoder, making reproducible builds harder. This change uses the -fmacro-prefix-map of GCC >= 8.0 and clang >= 10.0 to remove the source directory prefix. Since only the prefix is removed, the relevant source file names are still included. Background: https://reproducible-builds.org/docs/build-path/
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Various macros use
__FILE__to embed the source file name inerrors/logs. However, the full path is encoder, making reproducible
builds harder.
This change uses the `-fmacro-prefix-map`` of GCC >= 8.0 and clang >= 10.0 to
remove the source directory prefix. Since only the prefix is removed, the
relevant source file names are still included.
Background:
https://reproducible-builds.org/docs/build-path/