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authorManuel Stoeckl <code@mstoeckl.com>2019-07-16 13:04:27 -0400
committerDrew DeVault <sir@cmpwn.com>2019-07-17 21:00:09 -0400
commitbb056174146ae01448e0281ea204d2ddd60ebe3c (patch)
tree292a692ebe8fc83fda0cb4a7f869c6c6871fc172 /include/wlr/render
parent9e8f952997d9e37ccc97aded89e16d52dfd46e60 (diff)
Use -fmacro-prefix-map to strip build path
This commit matches sway's 2dc4978d8af326c310057ca8fd22a4c7f5d09335. To help ensure a reproducible build (when debug info is disabled), the meson build script now uses the -fmacro-prefix-map command line argument supported by GCC to strip the build-path dependent bytes of each __FILE__ string used by wlr_log and related functions. A rather ugly algorithm is used to compute the relative path between the build and source folders, because meson has no specific function for this. When the compiler does not support -fmacro-prefix-map, fall back to shifting the start of each __FILE__ string by the length of the relative path to the source directory.
Diffstat (limited to 'include/wlr/render')
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