Re: lua.pc pkg-config file

[Nicola Fontana <ntd@...>]

This is a proof of concept patch that tries to be less intrusive as
possible.

The generated pkg-config includes interpreter, compiler, LMOD and CMOD
paths together with the usual Libs and Cflags items... this should be
everything needed.

Feel free to do whatever you want with that code.

Ciao.
-- 
Nicola

diff -Naur lua-5.3.0.orig/Makefile lua-5.3.0/Makefile
--- lua-5.3.0.orig/Makefile	2014-10-30 00:14:41.000000000 +0100
+++ lua-5.3.0/Makefile	2015-03-26 18:54:37.678374827 +0100
@@ -14,6 +14,7 @@
 INSTALL_BIN= $(INSTALL_TOP)/bin
 INSTALL_INC= $(INSTALL_TOP)/include
 INSTALL_LIB= $(INSTALL_TOP)/lib
+INSTALL_PC= $(INSTALL_LIB)/pkgconfig
 INSTALL_MAN= $(INSTALL_TOP)/man/man1
 INSTALL_LMOD= $(INSTALL_TOP)/share/lua/$V
 INSTALL_CMOD= $(INSTALL_TOP)/lib/lua/$V
@@ -39,9 +40,12 @@
 PLATS= aix bsd c89 freebsd generic linux macosx mingw posix solaris
 
 # What to install.
-TO_BIN= lua luac
+INTERPRETER= lua
+COMPILER= luac
+TO_BIN= $(INTERPRETER) $(COMPILER)
 TO_INC= lua.h luaconf.h lualib.h lauxlib.h lua.hpp
 TO_LIB= liblua.a
+TO_PC=  lua$(V).pc
 TO_MAN= lua.1 luac.1
 
 # Lua version and release.
@@ -51,23 +55,29 @@
 # Targets start here.
 all:	$(PLAT)
 
-$(PLATS) clean:
+$(PLATS):
 	cd src && $(MAKE) $@
 
+clean:
+	cd src && $(MAKE) $@
+	$(RM) $(TO_PC)
+
 test:	dummy
 	src/lua -v
 
-install: dummy
-	cd src && $(MKDIR) $(INSTALL_BIN) $(INSTALL_INC) $(INSTALL_LIB) $(INSTALL_MAN) $(INSTALL_LMOD) $(INSTALL_CMOD)
+install: dummy $(TO_PC)
+	cd src && $(MKDIR) $(INSTALL_BIN) $(INSTALL_INC) $(INSTALL_LIB) $(INSTALL_PC) $(INSTALL_MAN) $(INSTALL_LMOD) $(INSTALL_CMOD)
 	cd src && $(INSTALL_EXEC) $(TO_BIN) $(INSTALL_BIN)
 	cd src && $(INSTALL_DATA) $(TO_INC) $(INSTALL_INC)
 	cd src && $(INSTALL_DATA) $(TO_LIB) $(INSTALL_LIB)
+	cd src && $(INSTALL_DATA) ../$(TO_PC) $(INSTALL_PC)
 	cd doc && $(INSTALL_DATA) $(TO_MAN) $(INSTALL_MAN)
 
 uninstall:
 	cd src && cd $(INSTALL_BIN) && $(RM) $(TO_BIN)
 	cd src && cd $(INSTALL_INC) && $(RM) $(TO_INC)
 	cd src && cd $(INSTALL_LIB) && $(RM) $(TO_LIB)
+	cd src && cd $(INSTALL_PC)  && $(RM) $(TO_PC)
 	cd doc && cd $(INSTALL_MAN) && $(RM) $(TO_MAN)
 
 local:
@@ -90,11 +100,13 @@
 	@echo "TO_BIN= $(TO_BIN)"
 	@echo "TO_INC= $(TO_INC)"
 	@echo "TO_LIB= $(TO_LIB)"
+	@echo "TO_PC= $(TO_PC)"
 	@echo "TO_MAN= $(TO_MAN)"
 	@echo "INSTALL_TOP= $(INSTALL_TOP)"
 	@echo "INSTALL_BIN= $(INSTALL_BIN)"
 	@echo "INSTALL_INC= $(INSTALL_INC)"
 	@echo "INSTALL_LIB= $(INSTALL_LIB)"
+	@echo "INSTALL_PC= $(INSTALL_PC)"
 	@echo "INSTALL_MAN= $(INSTALL_MAN)"
 	@echo "INSTALL_LMOD= $(INSTALL_LMOD)"
 	@echo "INSTALL_CMOD= $(INSTALL_CMOD)"
@@ -103,12 +115,28 @@
 
 # echo pkg-config data
 pc:
-	@echo "version=$R"
-	@echo "prefix=$(INSTALL_TOP)"
-	@echo "libdir=$(INSTALL_LIB)"
-	@echo "includedir=$(INSTALL_INC)"
+	@echo 'prefix=$(INSTALL_TOP)'
+	@echo 'libdir=$(INSTALL_LIB)'
+	@echo 'includedir=$(INSTALL_INC)'
+	@echo 'bindir=$(INSTALL_BIN)'
+	@echo
+	@echo 'INSTALL_LMOD=$(INSTALL_LMOD)'
+	@echo 'INSTALL_CMOD=$(INSTALL_CMOD)'
+	@echo 'INTERPRETER=$${bindir}/$(INTERPRETER)'
+	@echo 'COMPILER=$${bindir}/$(COMPILER)'
+	@echo
+	@echo 'Name: Lua'
+	@echo 'Description: A powerful, fast, lightweight, embeddable scripting language'
+	@echo 'Version: $(R)'
+	@echo
+	@echo 'Libs: -L$${libdir} -llua -lm'
+	@echo 'Cflags: -I$${includedir}'
+
+pkg-config: $(TO_PC)
+$(TO_PC):
+	@$(MAKE) -s pc > $@
 
 # list targets that do not create files (but not all makes understand .PHONY)
-.PHONY: all $(PLATS) clean test install local none dummy echo pecho lecho
+.PHONY: all $(PLATS) clean test install local none dummy echo pecho lecho pkg-config
 
 # (end of Makefile)