On Sun, 24 Jan 2021, Zack Weinberg wrote:
On Sun, Jan 24, 2021 at 7:27 PM Bob Friesenhahn
<bfriesen@xxxxxxxxxxxxxxxxxxx> wrote:
AC_SUBST([CONFIGURE_DEPENDENCIES],["$CONFIGURE_DEPENDENCIES \$(top_srcdir)/ChangeLog \$(top_srcdir)/version.sh"])
Why did you write it like this instead of
CONFIGURE_DEPENDENCIES = $(top_srcdir)/ChangeLog $(top_srcdir)/version.sh
It appears that I followed the Automake documentation which still says
to use the approach I used:
https://www.gnu.org/software/automake/manual/html_node/Rebuilding.html
Notice this documentation appears to be patterned on what
GraphicsMagick has been doing (or vice-versa) and the documentation
now suggests providing version info via a 'version.m4' file. It is
not clear how this can help unless the version.m4 itself is modified.
If the version.m4 invoked an external script then it seems it would
not help.
(Also, I thought having configure not be updated when the information
provided to AC_INIT has not changed was what you wanted to happen!)
It is good if each each 'make' cycle reaches a terminal conclusion and
assures that all targets are successfully concluded. Even if the
content of a target is not changed, its timestamp should be updated so
that make is happy.
Bob
--
Bob Friesenhahn
bfriesen@xxxxxxxxxxxxxxxxxxx, http://www.simplesystems.org/users/bfriesen/
GraphicsMagick Maintainer, http://www.GraphicsMagick.org/
Public Key, http://www.simplesystems.org/users/bfriesen/public-key.txt
