Mega patch to improve how build dependencies are handled and

how packages are found.

First: I removed all these *-deps.db files and only a single file
is used now "build-depends.db"; it's smaller and will be easier
to handle in the future... when "run-depends.db" is added :-)

Second: there's no need to specify version of package anymore;
before you had to do:

	$ pkgfs.sh install git-1.6.0.2

now you only do:

	$ pkgfs.sh install git

This will read the variables located at PKGFS_TEMPLATESDIR/git.tmpl
and will the install the version that is there.

--HG--
extra : convert_revision : 9e3e5d70965a69c76f59e322b7c7b674d627af52

helper-templates/perl-module.sh

@@ -18,7 +18,7 @@
 : ${perl_cmd:=$PKGFS_MASTERDIR/bin/perl}
 : ${PERL_DESTDIR:=$PKGFS_MASTERDIR}
 : ${PERL_PREFIX:=$PERL_DESTDIR}
-: ${PERL_DPREFIX:=$PKGFS_DESTDIR/$pkgname}
+: ${PERL_DPREFIX:=$PKGFS_DESTDIR/$pkgname-$version}
 : ${PERL_VERSION:=5.10.0}
 : ${PERL_LDDLFLAGS:=--whole-archive -shared -L$PKGFS_MASTERDIR/lib}
 : ${PERL_SITELIBEXP:=$PERL_DPREFIX/lib/perl5/site_perl/$PERL_VERSION}

helper-templates/pkg-config-transform.sh

@@ -5,11 +5,12 @@
 pkgconfig_transform_file()
 {
 	local file="$1"
+	local pkg="$pkgname-$version"
 
 	[ -z "$file" ] && return 1
 
 	$sed_cmd	\
-		-e "s|^exec_prefix=$PKGFS_DESTDIR/$pkgname.*$|exec_prefix=\${prefix}|" \
+		-e "s|^exec_prefix=$PKGFS_DESTDIR/$pkg.*$|exec_prefix=\${prefix}|" \
 		-e "s|-L\${libdir}|-L\${libdir} -Wl,-R\${libdir}|" \
 		$file > $file.in && \
 	$mv_cmd $file.in $file

helper-templates/unzip-extraction.sh

@@ -12,7 +12,7 @@ save_pkgname=$pkgname
 check_installed_tmpl unzip-$unzip_version
 if [ "$?" -ne 0 ]; then
 	echo "=> unzip not installed, will install it."
-	install_tmpl unzip-$unzip_version
+	install_tmpl unzip
 	#
 	# Continue with previous template that called us.
 	#