Rationalise implementation and usage of --all-related option.

[mingw/mingw-get.git] / configure.ac

diff --git a/configure.ac b/configure.ac
index 0900dfe..19c2243 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -3,7 +3,7 @@
 # $Id$
 #
 # Written by Keith Marshall <keithmarshall@users.sourceforge.net>
-# Copyright (C) 2009, 2010, MinGW Project
+# Copyright (C) 2009, 2010, 2011, MinGW Project
 #
 #
 # Configuration script for mingw-get
@@ -22,16 +22,30 @@
 # MinGW Project, accept liability for any damages, however caused,
 # arising from the use of this software.
 #
-  AC_INIT([mingw-get],[0.1-alpha-1],[http://mingw.org/reporting_bugs])
+  AC_INIT([mingw-get],[0.4-alpha-1.1cvs],[http://mingw.org/Reporting_Bugs])
 
   AC_SUBST([COPYRIGHT_HOLDER],["MinGW Project"])
-  AC_SUBST([YEARS_OF_ISSUE],["2009, 2010"])
+  AC_SUBST([YEARS_OF_ISSUE],["2009, 2010, 2011"])
 
 # Override the normal UNIX-centric autoconf default prefix;
 # substitute the MinGW standard in its place.
 #
   AC_PREFIX_DEFAULT([C:/MinGW])
 
+# We need the canonical representation of the intended host platform
+# identification triplet, from which to deduce the subsystem designator
+# in distributed tarball names.  (Note that we explicitly override any
+# user specified "build_alias", because autoconf gets upset if "host"
+# is specified without "build", and we need "host" if cross-compiling;
+# all we need in this case is "host" != "build", and we don't really
+# care what "build" is, but AC_CANONICAL_HOST gets very upset, when it
+# calls ${srcdir}/build-aux/config.sub, if the user specifies a short
+# form which it cannot resolve -- e.g. "--build=linux" will fail).
+#
+  AC_CONFIG_AUX_DIR([build-aux])
+  build_alias=`${srcdir}/build-aux/config.guess`
+  AC_CANONICAL_HOST
+
 # We need both C and C++ compilers; check how to invoke them
 #
   AC_PROG_CC
@@ -41,6 +55,16 @@
 #
   AC_PROG_LEX
 
+# Ensure that (at least the headers for) prerequisite libraries,
+# zlib, libbz2 and liblzma are available
+#
+  AC_CHECK_HEADER([zlib.h],,MINGW_AC_ASSERT_MISSING([zlib-dev],
+    [libz-1.2.3-1-mingw32-dev.tar.gz]))
+  AC_CHECK_HEADER([bzlib.h],,MINGW_AC_ASSERT_MISSING([libbz2-dev],
+    [bzip2-1.0.5-2-mingw32-dev.tar.gz]))
+  AC_CHECK_HEADER([lzma.h],,MINGW_AC_ASSERT_MISSING([liblzma-dev],
+    [liblzma-4.999.9beta_20091209-3-mingw32-dev.tar.bz2]))
+
 # Set up the archive librarian, to match our compiler settings
 #
   AC_CHECK_TOOL([AR],[ar],[ar])
@@ -57,9 +81,15 @@
 #
   AC_CHECK_TOOL([STRIP],[strip],[strip])
 
+# Identify features to be traced to facilitate debugging; make
+# it precious, to avoid introducing accidental inconsistencies.
+#
+  AC_ARG_VAR([DEBUGLEVEL],[tracing flags to facilitate debugging])
+  AC_SUBST([DEBUGLEVEL],[${DEBUGLEVEL-0}])
+
 # Establish the product version banner, and create a makefile
 #
   AC_CONFIG_FILES([version.c Makefile])
-  AC_OUTPUT
+  MINGW_AC_OUTPUT
 #
 # $RCSfile$: end of file