Added a new var for templates: only_for_archs.

This accepts a list of archs where the package makes sense. Use this
in the glibc32 pkg and restrict it to x86_64.

--HG--
extra : convert_revision : 4d64b281e1f2ab6b104d43a1f37def1ec767b0a1

templates/glibc32.tmpl

@@ -24,6 +24,8 @@ long_desc="
 
  This version is only for 64 bits systems."
 
+# This package doesn't make sense on 32bit systems.
+only_for_archs=x86_64
 cross_compiler=yes
 base_package=yes
 build_depends="perl-5.10.0"

xbps.sh

@@ -237,6 +237,7 @@ reset_tmpl_vars()
 			tar_override_cmd xml_entries sgml_entries \
 			build_depends libtool_fixup_la_stage no_fixup_libtool \
 			disable_parallel_build run_depends cross_compiler \
+			only_for_archs \
 			XBPS_EXTRACT_DONE XBPS_CONFIGURE_DONE \
 			XBPS_BUILD_DONE XBPS_INSTALL_DONE"
 
@@ -272,6 +273,7 @@ setup_tmpl()
 prepare_tmpl()
 {
 	local i=
+	local found=
 
 	#
 	# There's nothing of interest if we are a meta template.
@@ -288,6 +290,13 @@ prepare_tmpl()
 		fi
 	done
 
+	for i in ${only_for_archs}; do
+		[ "$i" = "$xbps_machine" ] && found=si && break
+	done
+	if [ -n ${only_for_archs} -a -z $found ]; then
+		msg_error "this package is only for: ${only_for_archs}."
+	fi
+
 	unset XBPS_EXTRACT_DONE XBPS_APPLYPATCHES_DONE
 	unset XBPS_CONFIGURE_DONE XBPS_BUILD_DONE XBPS_INSTALL_DONE
 
@@ -1386,18 +1395,9 @@ unstow_pkg()
 #
 while getopts "Cc:" opt; do
 	case $opt in
-	C)
-		dontrm_builddir=yes
-		;;
-	c)
-		config_file_specified=yes
-		XBPS_CONFIG_FILE="$OPTARG"
-		shift
-		;;
-	--)
-		shift
-		break
-		;;
+		C) dontrm_builddir=yes;;
+		c) config_file_specified=yes; XBPS_CONFIG_FILE="$OPTARG";;
+		--) shift; break;;
 	esac
 done
 shift $(($OPTIND - 1))