Update makefile and logfile to work with linux.

2 files changed, 9 insertions, 7 deletions

diff --git a/src/GNUmakefile b/src/GNUmakefile
index b9b6d16..eb7eb2d 100644
--- a/src/GNUmakefile
+++ b/src/GNUmakefile
@@ -285,7 +285,10 @@ endif
 # the PROFILE-overwriting `=` assignments above (not `+=`), so it
 # survives into CFLAGS instead of being wiped out by them.
 GIT_COMMIT	:=	$(shell git rev-parse --short HEAD 2>/dev/null || echo unknown)
-GIT_DIRTY	:=	$(shell git diff --quiet 2>/dev/null || echo -dirty)
+# Scoped to this directory: an unscoped `git diff` has to stat (and,
+# with a stale index, re-hash) every tracked file in the repo,
+# including the multi-GB pgn/twic.pgn, on every make invocation.
+GIT_DIRTY	:=	$(shell git diff --quiet -- . 2>/dev/null || echo -dirty)
 # Kept out of PROFILE itself (not folded in via +=): PROFILE gets
 # stringified whole into -DPROFILE="..." below for the "Make profile
 # used" trace line, and this value's embedded quotes broke that outer
diff --git a/src/main.c b/src/main.c
index f96ba4a..ecc9430 100644
--- a/src/main.c
+++ b/src/main.c
@@ -21,6 +21,7 @@ Revision History:
 **/
 
 #include "chess.h"
+#include <errno.h>
 
 FILE *g_pfLogfile = NULL;
 GAME_OPTIONS g_Options;
@@ -157,12 +158,10 @@ Return value:
 
     g_pfLogfile = fopen(g_Options.szLogfile, "wb+");
     if (NULL == g_pfLogfile) {
-        UtilPanic(INITIALIZATION_FAILURE,
-                  (void *)"Can't open logfile", 
-                  (void *)&(g_Options.szLogfile), 
-                  (void *)"write", 
-                  NULL,
-                  __FILE__, __LINE__);
+        Trace("WARNING: Can't open logfile %s for write (%s); "
+              "continuing without logging.\n",
+              g_Options.szLogfile, strerror(errno));
+        return(FALSE);
     }
     return(TRUE);
 }