From 5670e4275fb3f1cfb8b22bd8028b5725d5d0af41 Mon Sep 17 00:00:00 2001
From: Martin Mares <mj@ucw.cz>
Date: Wed, 20 Jun 2007 20:45:00 +0200
Subject: [PATCH] Generate and install files for pkg-config.

Using `pkg-config' is a standard way to query for information on linking
to other packages. This is particularly helpful for libpci where there is
no simple way to know if zlib compression is built in or not. With this
.pc file, linking to libpci is simple:

$ cc `pkg-config --cflags --libs libpci` -o myapp myapp.c

Signed-off-by: Dan Nicholson <dbn.lists@gmail.com>
---
 Makefile       | 13 ++++++++-----
 lib/.gitignore |  1 +
 lib/Makefile   | 11 ++++++++++-
 lib/configure  |  3 ++-
 4 files changed, 21 insertions(+), 7 deletions(-)

diff --git a/Makefile b/Makefile
index 8c4f512..378d19d 100644
--- a/Makefile
+++ b/Makefile
@@ -12,11 +12,13 @@ SBINDIR=$(PREFIX)/sbin
 SHAREDIR=$(PREFIX)/share
 IDSDIR=$(SHAREDIR)
 MANDIR:=$(shell if [ -d $(PREFIX)/share/man ] ; then echo $(PREFIX)/share/man ; else echo $(PREFIX)/man ; fi)
-INCDIR=$(PREFIX)/include/pci
+INCDIR=$(PREFIX)/include
 LIBDIR=$(PREFIX)/lib
+PKGCFDIR=$(LIBDIR)/pkgconfig
 INSTALL=install
 DIRINSTALL=install -d
 PCILIB=lib/libpci.a
+PCILIBPC=lib/libpci.pc
 PCIINC=lib/config.h lib/header.h lib/pci.h lib/types.h lib/sysdep.h
 PCIINC_INS=lib/config.h lib/header.h lib/pci.h lib/types.h
 
@@ -53,7 +55,7 @@ update-pciids: update-pciids.sh
 
 clean:
 	rm -f `find . -name "*~" -o -name "*.[oa]" -o -name "\#*\#" -o -name TAGS -o -name core -o -name "*.orig"`
-	rm -f update-pciids lspci setpci lib/config.* lib/example *.8 pci.ids.*
+	rm -f update-pciids lspci setpci lib/config.* lib/example *.8 pci.ids.* lib/*.pc
 	rm -rf maint/dist
 
 distclean: clean
@@ -66,10 +68,11 @@ install: all
 	$(INSTALL) -c -m 644 $(PCI_IDS) $(DESTDIR)$(IDSDIR)
 	$(INSTALL) -c -m 644 lspci.8 setpci.8 update-pciids.8 $(DESTDIR)$(MANDIR)/man8
 
-install-lib: $(PCIINC_INS) $(PCILIB)
-	$(DIRINSTALL) -m 755 $(DESTDIR)$(INCDIR) $(DESTDIR)$(LIBDIR)
-	$(INSTALL) -c -m 644 $(PCIINC_INS) $(DESTDIR)$(INCDIR)
+install-lib: $(PCIINC_INS) $(PCILIB) $(PCILIBPC)
+	$(DIRINSTALL) -m 755 $(DESTDIR)$(INCDIR)/pci $(DESTDIR)$(LIBDIR) $(DESTDIR)$(PKGCFDIR)
+	$(INSTALL) -c -m 644 $(PCIINC_INS) $(DESTDIR)$(INCDIR)/pci
 	$(INSTALL) -c -m 644 $(PCILIB) $(DESTDIR)$(LIBDIR)
+	$(INSTALL) -c -m 644 $(PCILIBPC) $(DESTDIR)$(PKGCFDIR)
 
 uninstall: all
 	rm -f $(DESTDIR)$(SBINDIR)/lspci $(DESTDIR)$(SBINDIR)/setpci $(DESTDIR)$(SBINDIR)/update-pciids
diff --git a/lib/.gitignore b/lib/.gitignore
index efc47ae..9bed745 100644
--- a/lib/.gitignore
+++ b/lib/.gitignore
@@ -1,2 +1,3 @@
 config.h
 config.mk
+libpci.pc
diff --git a/lib/Makefile b/lib/Makefile
index ae11863..9751eb5 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -7,6 +7,7 @@ OBJS=access.o generic.o dump.o names.o filter.o
 INCL=internal.h pci.h config.h header.h sysdep.h types.h
 
 PCILIB=libpci.a
+PCILIBPC=libpci.pc
 
 ifdef PCI_HAVE_PM_LINUX_SYSFS
 OBJS += sysfs.o
@@ -49,13 +50,21 @@ OBJS += nbsd-libpci.o
 PCILIB=libpciutils.a
 endif
 
-all: $(PCILIB)
+all: $(PCILIB) $(PCILIBPC)
 
 $(PCILIB): $(OBJS)
 	rm -f $@
 	ar rcs $@ $^
 	ranlib $@
 
+$(PCILIBPC): $(PCILIBPC).in
+	sed <$< >$@ -e 's,@PREFIX@,$(PREFIX),' \
+		-e 's,@INCDIR@,$(INCDIR),' \
+		-e 's,@LIBDIR@,$(LIBDIR),' \
+		-e 's,@IDSDIR@,$(IDSDIR),' \
+		-e 's,@VERSION@,$(VERSION),' \
+		-e 's,@LIBZ@,$(LIBZ),'
+
 access.o: access.c $(INCL)
 i386-ports.o: i386-ports.c $(INCL) i386-io-hurd.h i386-io-linux.h i386-io-sunos.h
 proc.o: proc.c $(INCL) pread.h
diff --git a/lib/configure b/lib/configure
index a031ca7..91bd03e 100755
--- a/lib/configure
+++ b/lib/configure
@@ -121,7 +121,8 @@ fi
 if [ "$zlib" = yes ] ; then
 	echo >>$c '#define PCI_COMPRESSED_IDS'
 	echo >>$c '#define PCI_IDS "pci.ids.gz"'
-	echo >>$m 'LDFLAGS+=-lz'
+	echo >>$m 'LIBZ=-lz'
+	echo >>$m 'LDFLAGS+=$(LIBZ)'
 else
 	echo >>$c '#define PCI_IDS "pci.ids"'
 fi
-- 
2.39.2