Don't require pkg-config when building from repository.

* INSTALL: Prefer './configure FOO=BAR' to 'FOO=BAR ./configure'.
* INSTALL.REPO: pkg-config is no longer required to build from
the repository.
* autogen.sh: Don't check for pkg-config.
(progs): Remove pkg-config.
(pkg_config_min, AUTORECONF_ENV, env_space, ACLOCAL_PATH):
Remove.  All uses removed.
* m4/pkg.m4: New file, built by admin/merge-pkg-config.
* configure.ac: Remove unnecessary m4_pattern_forbid of ^PKG_ and
an AC_ARG_VAR of PKG_CONFIG_PATH.  pkg.m4 does that for us.
(EMACS_CHECK_MODULES): Remove workaround for old pkg-config bug,
as we use pkg.m4 from a newer pkg-config.
* admin/merge-pkg-config: New script.
* admin/notes/copyright: Update for m4/*.m4, in particular m4/pkg.m4.
* etc/NEWS: Prefer './configure FOO=BAR' to 'FOO=BAR ./configure'.
* etc/PROBLEMS (Build-time-problems): Remove pkg-config problem
that is no longer an issue.
* nt/INSTALL: Remove no-longer-needed notes about pkg-config.

1 files changed, 16 insertions, 0 deletions

diff --git a/ChangeLog b/ChangeLog
index d7c08223cd..70e7de030d 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,19 @@
+2014-05-16  Paul Eggert  <[email protected]>
+
+	Don't require pkg-config when building from repository.
+	* INSTALL: Prefer './configure FOO=BAR' to 'FOO=BAR ./configure'.
+	* INSTALL.REPO: pkg-config is no longer required to build from
+	the repository.
+	* autogen.sh: Don't check for pkg-config.
+	(progs): Remove pkg-config.
+	(pkg_config_min, AUTORECONF_ENV, env_space, ACLOCAL_PATH):
+	Remove.  All uses removed.
+	* m4/pkg.m4: New file, built by admin/merge-pkg-config.
+	* configure.ac: Remove unnecessary m4_pattern_forbid of ^PKG_ and
+	an AC_ARG_VAR of PKG_CONFIG_PATH.  pkg.m4 does that for us.
+	(EMACS_CHECK_MODULES): Remove workaround for old pkg-config bug,
+	as we use pkg.m4 from a newer pkg-config.
+
 2014-05-15  Jan Djärv  <[email protected]>
 
 	* configure.ac (LIBPNG): Do not test for libpng if NS_IMPL_COCOA.