build system: avoid full rebuild when EXTRAVERSION changes

The last two commits allow EXTRAVERSION to track the current state
of a git repository.  The build system was unable to determine
which files were affected by changes to EXTRAVERSION and caused
a full rebuild when it changed.

Alter how the version information is passed to the code so only
a handful of files need to be rebuilt when it changes.

1 files changed, 3 insertions, 0 deletions

diff --git a/editors/vi.c b/editors/vi.c
index b49d5454d..7ad8412a2 100644
--- a/editors/vi.c
+++ b/editors/vi.c
@@ -214,6 +214,9 @@
 #if ENABLE_FEATURE_VI_REGEX_SEARCH
 # include <regex.h>
 #endif
+#if ENABLE_PLATFORM_MINGW32
+# include "BB_VER.h"
+#endif
 
 // the CRASHME code is unmaintained, and doesn't currently build
 #define ENABLE_FEATURE_VI_CRASHME 0