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guix/gnu/packages/patches/ninja-zero-mtime.patch

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Work around a design defect in Ninja whereby a zero mtime is used to
denote missing files (we happen to produce files that have a zero mtime
and yet really do exist.)
--- ninja-1.5.3/src/disk_interface.cc 2014-11-24 18:37:47.000000000 +0100
+++ ninja-1.5.3/src/disk_interface.cc 2015-07-18 23:20:38.572290139 +0200
@@ -194,6 +194,12 @@ TimeStamp RealDiskInterface::Stat(const
}
return -1;
}
+
+ if (st.st_mtime == 0)
+ // All the code assumes that mtime == 0 means "file missing". Here we
+ // know the file is not missing, so tweak the mtime.
+ st.st_mtime = 1;
+
return st.st_mtime;
#endif
}