diff -r 337f190aaf4b -r 76208f2e5ef0 core/Makefile
--- a/core/Makefile	Fri Oct 01 10:46:21 2010 -0400
+++ b/core/Makefile	Fri Oct 01 12:15:43 2010 -0700
@@ -2,13 +2,12 @@
 # Makefile written by David "BAILOPAN" Anderson
 
 SMSDK = ..
-SRCDS_BASE = ~/srcds
 HL2SDK_ORIG = ../../hl2sdk
 HL2SDK_OB = ../../hl2sdk-ob
 HL2SDK_OB_VALVE = ../../hl2sdk-ob-valve
 HL2SDK_L4D = ../../hl2sdk-l4d
 HL2SDK_L4D2 = ../../hl2sdk-l4d2
-MMSOURCE17 = ../../mmsource-central
+MMSOURCE = ../../mmsource-central
 
 #####################################
 ### EDIT BELOW FOR OTHER PROJECTS ###
@@ -48,71 +47,80 @@
 CPP = gcc
 
 override ENGSET = false
+
+ifneq (,$(filter original orangebox orangeboxvalve left4dead left4dead2,$(ENGINE)))
+	override ENGSET = true
+endif
+
 ifeq "$(ENGINE)" "original"
 	HL2SDK = $(HL2SDK_ORIG)
-	HL2PUB = $(HL2SDK)/public
 	HL2LIB = $(HL2SDK)/linux_sdk
 	CFLAGS += -DSOURCE_ENGINE=1
-	METAMOD = $(MMSOURCE17)/core-legacy
+	METAMOD = $(MMSOURCE)/core-legacy
 	INCLUDE += -I$(HL2SDK)/public/dlls
-	SRCDS = $(SRCDS_BASE)
 	BINARY = sourcemod.1.ep1.so
-	override ENGSET = true
 endif
 ifeq "$(ENGINE)" "orangebox"
 	HL2SDK = $(HL2SDK_OB)
-	HL2PUB = $(HL2SDK)/public
 	HL2LIB = $(HL2SDK)/lib/linux
 	CFLAGS += -DSOURCE_ENGINE=3
-	METAMOD = $(MMSOURCE17)/core
+	METAMOD = $(MMSOURCE)/core
 	INCLUDE += -I$(HL2SDK)/public/game/server
-	SRCDS = $(SRCDS_BASE)/orangebox
 	BINARY = sourcemod.2.ep2.so
-	override ENGSET = true
 endif
 ifeq "$(ENGINE)" "orangeboxvalve"
 	HL2SDK = $(HL2SDK_OB_VALVE)
-	HL2PUB = $(HL2SDK)/public
 	HL2LIB = $(HL2SDK)/lib/linux
 	CFLAGS += -DSOURCE_ENGINE=4
-	METAMOD = $(MMSOURCE17)/core
-	INCLUDE += -I$(HL2SDK)/public/game/server -I$(HL2SDK)/common
-	SRCDS = $(SRCDS_BASE)/orangebox
+	METAMOD = $(MMSOURCE)/core
+	INCLUDE += -I$(HL2SDK)/public/game/server 
+#-I$(HL2SDK)/common
 	BINARY = sourcemod.2.ep2v.so
-	override ENGSET = true
 endif
 ifeq "$(ENGINE)" "left4dead"
 	HL2SDK = $(HL2SDK_L4D)
-	HL2PUB = $(HL2SDK)/public
 	HL2LIB = $(HL2SDK)/lib/linux
 	CFLAGS += -DSOURCE_ENGINE=5
-	METAMOD = $(MMSOURCE17)/core
+	METAMOD = $(MMSOURCE)/core
 	INCLUDE += -I$(HL2SDK)/public/game/server
-	SRCDS = $(SRCDS_BASE)/l4d
 	BINARY = sourcemod.2.l4d.so
-	override ENGSET = true
 endif
 ifeq "$(ENGINE)" "left4dead2"
 	HL2SDK = $(HL2SDK_L4D2)
-	HL2PUB = $(HL2SDK)/public
 	HL2LIB = $(HL2SDK)/lib/linux
 	CFLAGS += -DSOURCE_ENGINE=6
-	METAMOD = $(MMSOURCE17)/core
+	METAMOD = $(MMSOURCE)/core
 	INCLUDE += -I$(HL2SDK)/public/game/server
-	SRCDS = $(SRCDS_BASE)/left4dead2
 	BINARY = sourcemod.2.l4d2.so
-	override ENGSET = true
+endif
+
+HL2PUB = $(HL2SDK)/public
+
+OS := $(shell uname -s)
+
+ifeq "$(OS)" "Darwin"
+	LIB_EXT = dylib
+	HL2LIB = $(HL2SDK)/lib/mac
+else
+	LIB_EXT = so
+	ifeq "$(ENGINE)" "original"
+		HL2LIB = $(HL2SDK)/linux_sdk
+	else
+		HL2LIB = $(HL2SDK)/lib/linux
+	endif
+endif
+
+ifneq (,$(filter original orangebox left4dead,$(ENGINE)))
+	LIB_SUFFIX = _i486.$(LIB_EXT)
+else
+	LIB_PREFIX = lib
+	LIB_SUFFIX = .$(LIB_EXT)
 endif
 
 CFLAGS += -DSE_EPISODEONE=1 -DSE_DARKMESSIAH=2 -DSE_ORANGEBOX=3 -DSE_ORANGEBOXVALVE=4 -DSE_LEFT4DEAD=5 -DSE_LEFT4DEAD2=6
 
-ifeq "$(ENGINE)" "left4dead2"
-LINK += $(HL2LIB)/tier1_i486.a $(HL2LIB)/mathlib_i486.a libvstdlib.so \
-	libtier0.so -static-libgcc
-else
-LINK += $(HL2LIB)/tier1_i486.a $(HL2LIB)/mathlib_i486.a vstdlib_i486.so \
-	tier0_i486.so -static-libgcc
-endif
+LINK += $(HL2LIB)/tier1_i486.a $(HL2LIB)/mathlib_i486.a $(LIB_PREFIX)vstdlib$(LIB_SUFFIX) \
+	$(LIB_PREFIX)tier0$(LIB_SUFFIX) -static-libgcc
 	
 INCLUDE += -I. -I.. -I$(HL2PUB) -I$(HL2PUB)/engine -I$(HL2PUB)/mathlib -I$(HL2PUB)/vstdlib \
 	-I$(HL2PUB)/tier0 -I$(HL2PUB)/tier1 -I$(METAMOD) -I$(METAMOD)/sourcehook \
@@ -152,18 +160,14 @@
 
 all: check
 	mkdir -p $(BIN_DIR)
-ifeq "$(ENGINE)" "left4dead2"
-	ln -sf $(SRCDS)/bin/libvstdlib.so libvstdlib.so;
-	ln -sf $(SRCDS)/bin/libtier0.so libtier0.so;
-else
-	ln -sf $(SRCDS)/bin/vstdlib_i486.so vstdlib_i486.so;
-	ln -sf $(SRCDS)/bin/tier0_i486.so tier0_i486.so;
-endif
+	ln -sf $(HL2LIB)/$(LIB_PREFIX)vstdlib$(LIB_SUFFIX)
+	ln -sf $(HL2LIB)/$(LIB_PREFIX)tier0$(LIB_SUFFIX)
 	$(MAKE) -f Makefile sourcemod
 
 check:
 	if [ "$(ENGSET)" = "false" ]; then \
-		echo "You must supply ENGINE=left4dead or ENGINE=orangebox or ENGINE=original"; \
+		echo "You must supply one of the following values for ENGINE:"; \
+		echo "left4dead2, left4dead, orangeboxvalve, orangebox, or original"; \
 		exit 1; \
 	fi