Add Makefile and pkg-config entry

Makefile

@@ -0,0 +1,38 @@
+PREFIX=/usr
+DATADIR=$${datarootdir}
+DATAROOTDIR=$${prefix}/share
+
+unstable_protocols = \
+	unstable/wlr-export-dmabuf-unstable-v1.xml \
+	unstable/wlr-gamma-control-unstable-v1.xml \
+	unstable/wlr-input-inhibitor-unstable-v1.xml \
+	unstable/wlr-layer-shell-unstable-v1.xml \
+	unstable/wlr-screencopy-unstable-v1.xml
+
+check:
+	./check.sh
+
+clean:
+	rm -f wlr-protocols.pc
+
+wlr-protocols.pc: wlr-protocols.pc.in
+	sed \
+		-e 's:@prefix@:$(PREFIX):g' \
+		-e 's:@datadir@:$(DATADIR):g' \
+		-e 's:@datarootdir@:$(DATAROOTDIR):g' \
+		<$< >$@
+
+install-unstable: $(unstable_protocols)
+	mkdir -p $(DESTDIR)$(PREFIX)/share/wlr-protocols/unstable
+	for protocol in $^ ; \
+	do \
+		install -Dm644 $$protocol \
+			$(DESTDIR)$(PREFIX)/share/wlr-protocols/$$protocol ; \
+	done
+
+install-pc: wlr-protocols.pc
+	mkdir -p $(DESTDIR)$(PREFIX)/share/pkgconfig/
+	install -Dm644 wlr-protocols.pc \
+		$(DESTDIR)$(PREFIX)/share/pkgconfig/wlr-protocols.pc
+
+install: install-unstable install-pc

check.sh

@@ -1,8 +1,7 @@
-#!/bin/sh
+#!/bin/sh -eux
 
-set -e
-
-for f in $(echo unstable/*.xml); do
+for f in $(echo unstable/*.xml)
+do
 	wayland-scanner -s client-header "$f" /dev/null
 	wayland-scanner -s server-header "$f" /dev/null
 	wayland-scanner -s public-code "$f" /dev/null

wlr-protocols.pc.in

@@ -0,0 +1,7 @@
+prefix=@prefix@
+datarootdir=@datarootdir@
+pkgdatadir=${pc_sysrootdir}@datadir@/wlr-protocols
+
+Name: wlroots Wayland protocols
+Description: Wayland protocol files
+Version: 1.0