tools: provide pkg-config file for libxenevtchn

In order to be able to use pkg-config for obtaining linker- and
compiler-flags provide a xenevtchn.pc file.

Signed-off-by: Juergen Gross <jgross@suse.com>
Acked-by: Wei Liu <wei.liu2@citrix.com>

.gitignore

@@ -98,6 +98,7 @@ config/Docs.mk
 tools/libs/toollog/headers.chk
 tools/libs/toollog/xentoollog.pc
 tools/libs/evtchn/headers.chk
+tools/libs/evtchn/xenevtchn.pc
 tools/libs/gnttab/headers.chk
 tools/libs/call/headers.chk
 tools/libs/foreignmemory/headers.chk

tools/libs/evtchn/Makefile

@@ -24,6 +24,23 @@ ifneq ($(nosharedlibs),y)
 LIB += libxenevtchn.so
 endif
 
+PKG_CONFIG := xenevtchn.pc
+PKG_CONFIG_VERSION := $(MAJOR).$(MINOR)
+
+ifneq ($(CONFIG_LIBXC_MINIOS),y)
+PKG_CONFIG_INST := $(PKG_CONFIG)
+$(PKG_CONFIG_INST): PKG_CONFIG_PREFIX = $(prefix)
+$(PKG_CONFIG_INST): PKG_CONFIG_INCDIR = $(includedir)
+$(PKG_CONFIG_INST): PKG_CONFIG_LIBDIR = $(libdir)
+endif
+
+PKG_CONFIG_LOCAL := $(foreach pc,$(PKG_CONFIG),$(PKG_CONFIG_DIR)/$(pc))
+
+$(PKG_CONFIG_LOCAL): PKG_CONFIG_PREFIX = $(XEN_ROOT)
+$(PKG_CONFIG_LOCAL): PKG_CONFIG_INCDIR = $(XEN_LIBXENEVTCHN)/include
+$(PKG_CONFIG_LOCAL): PKG_CONFIG_LIBDIR = $(CURDIR)
+$(PKG_CONFIG_LOCAL): PKG_CONFIG_CFLAGS_LOCAL = $(CFLAGS_xeninclude)
+
 .PHONY: all
 all: build
 
@@ -32,7 +49,7 @@ build:
 	$(MAKE) libs
 
 .PHONY: libs
-libs: headers.chk $(LIB)
+libs: headers.chk $(LIB) $(PKG_CONFIG_INST) $(PKG_CONFIG_LOCAL)
 
 headers.chk: $(wildcard include/*.h)
 
@@ -56,6 +73,7 @@ install: build
 	$(SYMLINK_SHLIB) libxenevtchn.so.$(MAJOR).$(MINOR) $(DESTDIR)$(libdir)/libxenevtchn.so.$(MAJOR)
 	$(SYMLINK_SHLIB) libxenevtchn.so.$(MAJOR) $(DESTDIR)$(libdir)/libxenevtchn.so
 	$(INSTALL_DATA) include/xenevtchn.h $(DESTDIR)$(includedir)
+	$(INSTALL_DATA) xenevtchn.pc $(DESTDIR)$(PKG_INSTALLDIR)
 
 .PHONY: TAGS
 TAGS:
@@ -66,6 +84,7 @@ clean:
 	rm -rf *.rpm $(LIB) *~ $(DEPS) $(LIB_OBJS) $(PIC_OBJS)
 	rm -f libxenevtchn.so.$(MAJOR).$(MINOR) libxenevtchn.so.$(MAJOR)
 	rm -f headers.chk
+	rm -f xenevtchn.pc
 
 .PHONY: distclean
 distclean: clean

tools/libs/evtchn/xenevtchn.pc.in

@@ -0,0 +1,10 @@
+prefix=@@prefix@@
+includedir=@@incdir@@
+libdir=@@libdir@@
+
+Name: Xenevtchn
+Description: The Xenevtchn library for Xen hypervisor
+Version: @@version@@
+Cflags: -I${includedir} @@cflagslocal@@
+Libs: @@libsflag@@${libdir} -lxenevtchn
+Requires.private: xentoollog