Add rebuild rule for template files

[tiran]

CONFIG_STATUS_DEPENDENCIES ensure that 'make' will re-run configure
after any of the template files (freeipa.spec.in, ipasetup.py.in...)
have been altered.

Signed-off-by: Christian Heimes cheimes@redhat.com

[pspacek]

NACK:

• the variable is defined incorrectly, it should be in configure.ac (see Automake manual chapter 16 Rebuilding Makefiles)
• file install/ui/src/libs/loader.js is missing in the list
• please reference build system refactoring ticket in the commit message
• even more importantly, there is a conceptual problem:
  I'm not even sure that this is the right approach. CONFIG_STATUS_DEPEDENCIES is intended for re-building Makefiles and related infrastructure, not individual files generated from templates. With this patch it will re-run configure and config.status for the whole tree. The correct way to do this is to re-run config.status only for particular file. (config.status is the script which is doing actual variable substitution into templates.)

Fixing this might require moving these particular template substitutions from AC_CONFIG_FILES to Makefile.am in particular directories.

[tiran]

I created a ticket for you, https://fedorahosted.org/freeipa/ticket/6498 .

This exact (!) AC_SUBST works for me. Additional newlines cause CONFIG_STATUS_DEPENDENCIES to be an empty rule.

# re-run configure after templates have been altered
AC_SUBST([CONFIG_STATUS_DEPENDENCIES],
     ['$(top_srcdir)/daemons/ipa-version.h.in $(top_srcdir)/freeipa.spec.in $(top_srcdir)/ipapython/version.py.in $(top_srcdir)/ipasetup.py.in $(top_srcdir)/install/ui/src/libs/loader.js.in'])

[pspacek]

I'm going to provide a proper fix as agreed on meeting today.