install a libspotgen.pc file

* spot/gen/libspotgen.pc.in: New file.
* spot/gen/Makefile.am: Install libspotgen.pc.
* debian/libspot-dev.install: Update.

debian/libspot-dev.install

@@ -5,3 +5,6 @@ usr/lib/*-*/pkgconfig/libspot.pc
 usr/lib/*-*/libspotltsmin.so
 usr/lib/*-*/libspotltsmin.a
 usr/lib/*-*/pkgconfig/libspotltsmin.pc
+usr/lib/*-*/libspotgen.so
+usr/lib/*-*/libspotgen.a
+usr/lib/*-*/pkgconfig/libspotgen.pc

spot/gen/Makefile.am

@@ -26,3 +26,18 @@ spotgen_HEADERS = automata.hh formulas.hh
 lib_LTLIBRARIES = libspotgen.la
 libspotgen_la_SOURCES = automata.cc formulas.cc
 libspotgen_la_LDFLAGS = ../libspot.la -no-undefined $(SYMBOLIC_LDFLAGS)
+
+
+EXTRA_DIST = $(srcdir)/libspotgen.pc.in
+pkgconfigdir = $(libdir)/pkgconfig
+nodist_pkgconfig_DATA = libspotgen.pc
+
+libspotgen.pc: $(srcdir)/libspotgen.pc.in Makefile
+	sed -e 's![@]prefix[@]!$(prefix)!g' \
+	    -e 's![@]exec_prefix[@]!$(exec_prefix)!g' \
+	    -e 's![@]includedir[@]!$(includedir)!g' \
+	    -e 's![@]libdir[@]!$(libdir)!g' \
+	    -e 's![@]PACKAGE_VERSION[@]!$(PACKAGE_VERSION)!g' \
+	$(srcdir)/libspotgen.pc.in > $@.tmp && mv $@.tmp $@
+
+CLEANFILES = libspotgen.pc

spot/gen/libspotgen.pc.in

@@ -0,0 +1,12 @@
+prefix=@prefix@
+exec_prefix=@exec_prefix@
+includedir=@includedir@
+libdir=@libdir@
+
+Name: Spot-gen
+Description: Generate LTL and automata patterns for Spot
+URL: https://spot.lrde.epita.fr/
+Version: @PACKAGE_VERSION@
+Cflags: -I${includedir}
+Libs: -L${libdir} -lspotgen
+Requires: libspot