luasocket: Replace -fpic with $(FPIC)

This is causing linking errors on i386 and ppc.

Also removed custom warnings an optimization levels that override stock
settings.

Signed-off-by: Rosen Penev <rosenp@gmail.com>
(cherry-picked from ecb4fcca0c)

lang/luasocket/Makefile

@@ -10,7 +10,7 @@ include $(TOPDIR)/rules.mk
 PKG_NAME:=luasocket
 PKG_SOURCE_VERSION:=6d5e40c324c84d9c1453ae88e0ad5bdd0a631448
 PKG_VERSION:=3.0-rc1-20130909
-PKG_RELEASE:=4
+PKG_RELEASE:=5
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.bz2
 PKG_SOURCE_URL:=https://github.com/diegonehab/luasocket.git
@@ -41,7 +41,7 @@ endef
 define Build/Compile
 	$(MAKE) -C $(PKG_BUILD_DIR)/ \
 		LIBDIR="$(TARGET_LDFLAGS)" \
-		CC="$(TARGET_CC) $(TARGET_CFLAGS) $(TARGET_CPPFLAGS) -std=gnu99" \
+		CC="$(TARGET_CC) $(TARGET_CFLAGS) $(TARGET_CPPFLAGS) $(FPIC)" \
 		LD="$(TARGET_CROSS)ld -shared" \
 		all
 endef

lang/luasocket/patches/040-remove-fpic-and-warnings.patch

@@ -0,0 +1,14 @@
+--- a/src/makefile
++++ b/src/makefile
+@@ -163,9 +163,8 @@ DEF_linux=-DLUASOCKET_$(DEBUG) -DLUA_$(COMPAT)_MODULE \
+ 	-DLUASOCKET_API='__attribute__((visibility("default")))' \
+ 	-DUNIX_API='__attribute__((visibility("default")))' \
+ 	-DMIME_API='__attribute__((visibility("default")))'
+-CFLAGS_linux= -I$(LUAINC) $(DEF) -pedantic -Wall -Wshadow -Wextra \
+-	-Wimplicit -O2 -ggdb3 -fpic -fvisibility=hidden
+-LDFLAGS_linux=-O -shared -fpic -o 
++CFLAGS_linux= -I$(LUAINC) $(DEF) -fvisibility=hidden
++LDFLAGS_linux=-shared -o
+ LD_linux=gcc
+ SOCKET_linux=usocket.o
+