Made it possible to build SDL from a fresh checkout without any additional steps.

The trick is that if you're using configure and you don't want to have SDL_config.h and SDL_revision.h to show up as modified, you need to configure and build from a separate directory.

You also need to include SDL_revision.h directly if you want to use the SDL_REVISION constant, as a side effect of these changes.

--HG--
rename : include/SDL_config.h.default => include/SDL_config.h

build-scripts/snapshot.sh

@@ -1,27 +0,0 @@
-#!/bin/sh
-#
-# Generate a current snapshot from source control
-
-echo "Checking out source"
-hg clone http://hg.libsdl.org/SDL || exit $?
-(cd SDL && ./autogen.sh && rm -rf autom4te.cache)
-sh SDL/build-scripts/updaterev.sh
-cp SDL/include/SDL_config.h.default SDL/include/SDL_config.h
-
-major=`fgrep "#define SDL_MAJOR_VERSION" SDL/include/SDL_version.h | \
-       sed 's,[^0-9]*\([0-9]*\),\1,'`
-minor=`fgrep "#define SDL_MINOR_VERSION" SDL/include/SDL_version.h | \
-       sed 's,[^0-9]*\([0-9]*\),\1,'`
-patch=`fgrep "#define SDL_PATCHLEVEL" SDL/include/SDL_version.h | \
-       sed 's,[^0-9]*\([0-9]*\),\1,'`
-rev=`fgrep "#define SDL_REVISION" SDL/include/SDL_revision.h | \
-       sed 's,[^0-9]*\([0-9]*\):.*,\1,'`
-path="SDL-$major.$minor.$patch-$rev"
-
-mv SDL $path
-echo $path.tar.gz
-tar zcf $path.tar.gz $path
-echo $path.zip
-rm -f $path.zip
-zip -rq $path.zip $path
-rm -rf $path

build-scripts/updaterev.sh

@@ -2,9 +2,10 @@
 #
 # Generate a header file with the current source revision
 
+outdir=`pwd`
 cd `dirname $0`
 srcdir=..
-header=$srcdir/include/SDL_revision.h
+header=$outdir/include/SDL_revision.h
 
 rev=`sh showrev.sh`
 if [ "$rev" != "" -a "$rev" != "hg-0:baadf00d" ]; then