depot/third_party/nixpkgs/pkgs/development/compilers/clean/chroot-build-support-do-not-rebuild-equal-timestamps.patch
Default email 8ac5e011d6 Project import generated by Copybara.
GitOrigin-RevId: 2c3273caa153ee8eb5786bc8141b85b859e7efd7
2020-04-24 19:36:52 -04:00

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The clean command line compiler clm checks modules for freshness by comparing timestamps.
However, in chroot builds all files installed have the same timestamp. This leads to clm
trying to rebuild the library modules distributed with the Clean install every time a user
compiles any file. This patch changes the freshness check to use less than instead of less
than or equal to in order to avoid this.
--- clean-upstream/src/tools/clm/clm.c 2010-12-10 06:12:17.000000000 -0430
+++ clean/src/tools/clm/clm.c 2010-12-25 10:29:09.840675925 -0430
@@ -250,7 +250,7 @@
|| (t1.dwHighDateTime==t2.dwHighDateTime && (unsigned)(t1.dwLowDateTime)<=(unsigned)(t2.dwLowDateTime)))
#else
typedef unsigned long FileTime;
-# define FILE_TIME_LE(t1,t2) (t1<=t2)
+# define FILE_TIME_LE(t1,t2) (t1<t2)
#endif
typedef struct project_node {