SCP: Add explanatory comments in sim_rev.h

This commit is contained in:
Mark Pizzolato 2020-02-04 16:09:33 -08:00
parent e48077d7f3
commit 593f36aec7

View file

@ -48,6 +48,14 @@
#include ".git-commit-id.h"
#endif
/*
Simh's git commit id would be undefined when working with an
extracted archive (zip file or tar ball). To address this
problem and record the commit id that the archive was created
from, the archive creation process populates the below
information as a consequence of the "sim_rev.h export-subst"
line in the .gitattributes file.
*/
#if !defined(SIM_GIT_COMMIT_ID)
#define SIM_GIT_COMMIT_ID $Format:%H$
#define SIM_GIT_COMMIT_TIME $Format:%aI$