[PATCH] gnu: lua: Add patch to generate pkg-config file.

[Siniša Biđin]

* gnu/packages/patches/lua-pkgconfig.patch: New file.
* gnu/packages/lua.scm (lua)[source]: Add patch.
* gnu-system.am (dist_patch_DATA): Register patch.
---
 gnu-system.am                            |   1 +
 gnu/packages/lua.scm                     |  13 ++--
 gnu/packages/patches/lua-pkgconfig.patch | 107 +++++++++++++++++++++++++++++++
 3 files changed, 115 insertions(+), 6 deletions(-)
 create mode 100644 gnu/packages/patches/lua-pkgconfig.patch

diff --git a/gnu-system.am b/gnu-system.am
index 688a10f..b43dc5b 100644
--- a/gnu-system.am
+++ b/gnu-system.am
@@ -547,6 +547,7 @@ dist_patch_DATA =                                           
\
   gnu/packages/patches/libwmf-CVE-2015-0848+4588+4695+4696.patch \
   gnu/packages/patches/lirc-localstatedir.patch                        \
   gnu/packages/patches/lm-sensors-hwmon-attrs.patch            \
+  gnu/packages/patches/lua-pkgconfig.patch                      \
   gnu/packages/patches/lua51-liblua-so.patch                    \
   gnu/packages/patches/luajit-no_ldconfig.patch                        \
   gnu/packages/patches/luajit-symlinks.patch                   \
diff --git a/gnu/packages/lua.scm b/gnu/packages/lua.scm
index 9a3a83f..fcdd13e 100644
--- a/gnu/packages/lua.scm
+++ b/gnu/packages/lua.scm
@@ -31,12 +31,13 @@
   (package
     (name "lua")
     (version "5.2.3")
-    (source (origin
-             (method url-fetch)
-             (uri (string-append "http://www.lua.org/ftp/lua-";
-                                 version ".tar.gz"))
-             (sha256
-              (base32 
"0b8034v1s82n4dg5rzcn12067ha3nxaylp2vdp8gg08kjsbzphhk"))))
+    (source
+     (origin
+       (method url-fetch)
+       (uri (string-append "http://www.lua.org/ftp/lua-"; version ".tar.gz"))
+       (sha256
+        (base32 "0b8034v1s82n4dg5rzcn12067ha3nxaylp2vdp8gg08kjsbzphhk"))
+       (patches (list (search-patch "lua-pkgconfig.patch")))))
     (build-system gnu-build-system)
     (inputs `(("readline", readline)))
     (arguments
diff --git a/gnu/packages/patches/lua-pkgconfig.patch 
b/gnu/packages/patches/lua-pkgconfig.patch
new file mode 100644
index 0000000..85b131c
--- /dev/null
+++ b/gnu/packages/patches/lua-pkgconfig.patch
@@ -0,0 +1,107 @@
+Enables generating the lua.pc pkg-config file.
+
+--- a/Makefile 2014-10-30 00:14:41.000000000 +0100
++++ b/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)
-- 
2.4.3