make autoconf happy by "mv configure.{in,ac}"

Git-Dch: Ignore

buildlib/configure.mak

@@ -2,7 +2,7 @@
 
 # This make fragment is included by the toplevel make to handle configure
 # and setup. It defines a target called startup that when run will init
-# the build directory, generate configure from configure.in, create aclocal
+# the build directory, generate configure from configure.ac, create aclocal
 # and has rules to run config.status should one of the .in files change.
 
 # Input
@@ -48,7 +48,7 @@ missing-config-files:
 	@echo "http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.sub;hb=HEAD"
 	exit 100
 
-configure: aclocal.m4 configure.in buildlib/config.guess buildlib/config.sub
+configure: aclocal.m4 configure.ac buildlib/config.guess buildlib/config.sub
 	autoconf
 
 aclocal.m4: $(wildcard buildlib/*.m4)

configure.in

@@ -10,10 +10,10 @@ dnl need a C++ compiler that is semi-standard conformant, exceptions are
 dnl not used but STL is.
 
 dnl 'make -f Makefile startup' will generate the configure file from 
-dnl configure.in correctly and can be run at any time
+dnl configure.ac correctly and can be run at any time
 
 AC_PREREQ(2.50)
-AC_INIT(configure.in)
+AC_INIT(configure.ac)
 AC_CONFIG_AUX_DIR(buildlib)
 AC_CONFIG_HEADER(include/config.h:buildlib/config.h.in include/apti18n.h:buildlib/apti18n.h.in)
 

debian/rules

@@ -76,7 +76,7 @@ build-manpages: build/build-manpages-stamp
 build/environment.mak: build/configure-stamp
 	@true
 
-configure: configure.in
+configure: configure.ac
 build/configure-stamp: configure
 	dh_testdir
 	-mkdir build

prepare-release

@@ -39,7 +39,7 @@ if [ "$1" = 'pre-export' ]; then
 		make update-po
 	fi
 
-	sed -i -e "s/^PACKAGE_VERSION=\".*\"$/PACKAGE_VERSION=\"${VERSION}\"/" configure.in
+	sed -i -e "s/^PACKAGE_VERSION=\".*\"$/PACKAGE_VERSION=\"${VERSION}\"/" configure.ac
 	sed -i -e "s/^<!ENTITY apt-product-version \".*\">$/<!ENTITY apt-product-version \"${VERSION}\">/" doc/apt-verbatim.ent
 elif [ "$1" = 'post-build' ]; then
 	if [ "$DISTRIBUTION" != "UNRELEASED" ]; then