build: Add a configuration summary to configure output

Remove the notices printed inbetween the checks as this is now printed
as part of the summary.

configure.ac

@@ -159,3 +159,40 @@ AC_CONFIG_FILES([ Makefile
 		  utils/Makefile ])
 AC_CONFIG_HEADERS([config.h])
 AC_OUTPUT
+
+# Print the current configuration
+cat <<CONFIG
+
+Configuration:
+  Features:
+    NLS . . . . . . . . . . . . . : $USE_NLS
+    unicode support . . . . . . . : $USE_UNICODE
+    development documentation . . : $build_devel_docs
+    code coverage . . . . . . . . : $enable_coverage
+    build shared libraries  . . . : $enable_shared
+    mmap loaders  . . . . . . . . : $enable_mmap
+    default dpkg-deb compressor . : $with_dpkg_deb_compressor
+
+  Paths:
+    devlibdir . . . . . . . . . . : $devlibdir
+    pkgconfdir  . . . . . . . . . : $pkgconfdir
+    admindir  . . . . . . . . . . : $admindir
+    logdir  . . . . . . . . . . . : $logdir
+    perl interpreter  . . . . . . : $PERL
+    perl libdir . . . . . . . . . : $PERL_LIBDIR
+
+  Programs:
+    update-alternatives . . . . . : $build_update_alternatives
+    start-stop-daemon . . . . . . : $build_start_stop_daemon
+    dselect . . . . . . . . . . . : $build_dselect
+
+  System Libraries:
+    libps . . . . . . . . . . . . : ${have_libps:-no}
+    libkvm  . . . . . . . . . . . : ${have_libkvm:-no}
+    libselinux  . . . . . . . . . : $with_selinux
+    libmd . . . . . . . . . . . . : $with_libmd
+    libz  . . . . . . . . . . . . : $with_zlib
+    liblzma . . . . . . . . . . . : $with_liblzma
+    libbz2  . . . . . . . . . . . : $with_bz2
+    libcurses . . . . . . . . . . : ${have_libcurses:-no}
+CONFIG

debian/changelog

@@ -75,6 +75,7 @@ dpkg (1.18.5) UNRELEASED; urgency=medium
     - Remove unused UA_LIBS variable.
     - Split libps and libkvm detection into their own macros and variables.
     - Make it possible to build without system libmd.
+    - Add a configuration summary to configure output.
   * Test suite:
     - Add a unit test to compile perl code with warnings.
     - Add a unit test for the trigger deferred parser.

m4/dpkg-build.m4

@@ -58,7 +58,6 @@ AC_DEFUN([DPKG_WITH_DIR], [
             [$1="$with_$1"])
   )
   AC_SUBST([$1])
-  AC_MSG_NOTICE([using directory $1 = '$$1'])
 ])# DPKG_WITH_DIR
 
 # DPKG_DEB_COMPRESSOR(COMP)
@@ -75,7 +74,6 @@ AC_DEFUN([DPKG_DEB_COMPRESSOR], [
   AC_DEFINE_UNQUOTED([DPKG_DEB_DEFAULT_COMPRESSOR],
                      [COMPRESSOR_TYPE_]AS_TR_CPP(${with_dpkg_deb_compressor}),
                      [default dpkg-deb build compressor])
-  AC_MSG_NOTICE([using default dpkg-deb compressor = $with_dpkg_deb_compressor])
 ]) # DPKG_DEB_COMPRESSOR
 
 # DPKG_DIST_CHECK(COND, ERROR)