Hi

I experimented with this and it didn't always seem to rebuild VERSION
when it should. Looking at the file .git/HEAD that just seems to be the
branch name not the commit id (unless in detached HEAD state)

This link
http://stackoverflow.com/questions/6526451/how-to-include-git-commit-number-into-a-c-executable
 
suggests adding .git/index to the VERSION depends.

I tested that and that does seem to work. It may mean that VERSION gets
rebuilt if you stash (for example) but that is probably not a big
problem.

Best wishes

Mark

On Sat, 25 Jan 2014, Tomi Ollila <[email protected]> wrote:
> This version file will be as prerequisite to the target files
> that use the version info for some purpose, like printing
> it to the user to examine. The contents of the VERSION file
> is seldom read by the build system itself as the $(VERSION)
> variable has the same information.
> ---
>  Makefile.local | 11 ++++++++++-
>  1 file changed, 10 insertions(+), 1 deletion(-)
>
> diff --git a/Makefile.local b/Makefile.local
> index c85e09c..1f876b3 100644
> --- a/Makefile.local
> +++ b/Makefile.local
> @@ -22,6 +22,8 @@ VERSION:=$(shell cat ${srcdir}/version)
>  ifeq ($(filter release release-message pre-release 
> update-versions,$(MAKECMDGOALS)),)
>  ifeq ($(IS_GIT),yes)
>  VERSION:=$(shell git describe --match '[0-9.]*'|sed -e s/_/~/ -e s/-/+/ -e 
> s/-/~/)
> +# Make the 'VERSION' file depend *also* on .git/HEAD in this case
> +VERSION: .git/HEAD
>  endif
>  endif
>  
> @@ -69,6 +71,11 @@ ifeq ($(shell cat .first-build-message 2>/dev/null),)
>  endif
>  endif
>  
> +# This VERSION file is used mostly for triggering other file remakes...
> +# This may get other dependency to .git/HEAD above in this file.
> +VERSION: version
> +     echo $(VERSION) > $@
> +
>  $(TAR_FILE):
>       if git tag -v $(VERSION) >/dev/null 2>&1; then \
>             ref=$(VERSION); \
> @@ -280,6 +287,8 @@ notmuch_client_srcs =             \
>  
>  notmuch_client_modules = $(notmuch_client_srcs:.c=.o)
>  
> +notmuch.o: VERSION
> +
>  notmuch: $(notmuch_client_modules) lib/libnotmuch.a util/libutil.a 
> parse-time-string/libparse-time-string.a
>       $(call quiet,CXX $(CFLAGS)) $^ $(FINAL_LIBNOTMUCH_LDFLAGS) -o $@
>  
> @@ -318,7 +327,7 @@ install-desktop:
>       desktop-file-install --mode 0644 --dir "$(DESTDIR)$(desktop_dir)" 
> notmuch.desktop
>  
>  SRCS  := $(SRCS) $(notmuch_client_srcs)
> -CLEAN := $(CLEAN) notmuch notmuch-shared $(notmuch_client_modules) 
> notmuch.elc
> +CLEAN := $(CLEAN) VERSION notmuch notmuch-shared $(notmuch_client_modules)
>  
>  DISTCLEAN := $(DISTCLEAN) .first-build-message Makefile.config
>  
> -- 
> 1.8.5.3
>
> _______________________________________________
> notmuch mailing list
> [email protected]
> http://notmuchmail.org/mailman/listinfo/notmuch
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