On Tue, 12 Jan 2021, Peter Johansson wrote:
The problem is that there is no dependency in the Makefile telling that
autoconf need to be rerun when the version has changed. Automake has the
variable 'CONFIGURE_DEPENDENCIES' for this purpose, so adding
CONFIGURE_DEPENDENCIES = ChangeLog
would solve the issue but will cause a rerun of autoconf every time you touch
ChangeLog. Rather you want a stamp file, whose timestamp only changes when
the output of 'version.sh packageversion' changes. Something along the lines:
$(srcdir)/.version: ChangeLog
cd $(srcdir) && ./version packageversion > .version-tmp && move-if-change
.version-tmp .version
EXTRA_DIST = $(srcdir)/.version
This seemed like a great idea, but upon trying out, I saw that the
rule gets invoked each time I type 'make'. This results in activity
whereas before 'make' would simply report that there is nothing to do.
swdev:~/build/GM-16-static% gmake
CDPATH="${ZSH_VERSION+.}:" && cd /home/bfriesen/src/graphics/GM && /bin/sh
'/home/bfriesen/src/graphics/GM/config/missing' autoconf
gmake all-am
gmake[1]: Entering directory '/scratch/bfriesen/build/GM-16-static'
CDPATH="${ZSH_VERSION+.}:" && cd /home/bfriesen/src/graphics/GM && /bin/sh
'/home/bfriesen/src/graphics/GM/config/missing' autoconf
gmake[1]: Leaving directory '/scratch/bfriesen/build/GM-16-static'
This seems like a Catch-22 situation. If the VERSION file timestamp
does not get updated, it will produce this noise, and if does get
updated, then there is a whole reconf-config-build cycle.
Is there any solution for that?
Otherwise I have a less fancy means which works without the extra
noise.
Bob
--
Bob Friesenhahn
bfrie...@simple.dallas.tx.us, http://www.simplesystems.org/users/bfriesen/
GraphicsMagick Maintainer, http://www.GraphicsMagick.org/
Public Key, http://www.simplesystems.org/users/bfriesen/public-key.txt
