clean up modelsim cosim makefile

cosimulation/modelsim/Makefile

@@ -1,33 +1,25 @@
-# could add to CFLAGS to turn on warnings if you are using gcc
-WARNS=-Wall
+# This makefile assumes that 32bit Modelsim is installed.
+# If you have a 64 bit version, run 'ARCH=64 make'
+ARCH?=32
+CFLAGS_32= -m32
+CFLAGS_64= -m64
 
-# change this path to point to the pli include files directory for cver
+# Guess include dir based on location of vsim
 INCS=-I $(shell dirname `which vsim`)/../include
+CFLAGS= -Wall -shared -BSymbolic -fPIC $(CFLAGS_$(ARCH)) $(INCS)
 
-# maybe want -O<something> and/or -g
+VSIM_VERSION=$(shell vsim -version 2>/dev/null; echo $$?)
 
-# 32bit for Altera ASE/PE on Ubuntu Natty Narwhal
-CFLAGS= -fPIC -Wall -g -m32 $(INCS) -fno-stack-protector
-LFLAGS= -G -shared -export-dynamic -melf_i386
-
-# 64bit for SE
-#CFLAGS= -fPIC -Wall -c -g $(INCS)
-#LFLAGS= -shared -E
-
-# change to your compiler 
-CC=gcc 
 
 all: myhdl_vpi.so
 
-myhdl_vpi.o:	myhdl_vpi.c 
-	$(CC) $(CFLAGS) -c myhdl_vpi.c
-
-# make rules for dynamic libaries
-myhdl_vpi.so:	myhdl_vpi.o
-	$(LD) $(LFLAGS) myhdl_vpi.o -o myhdl_vpi.so
+myhdl_vpi.so: myhdl_vpi.c
+	$(info Compiling $(ARCH)bit vpi lib for "$(VSIM_VERSION)") 
+	$(info )
+	$(CC) $(CFLAGS) -o $@ $?
 
 clean:
-	-rm *.o *.so
+	@rm -f myhdl_vpi.so
  
 .PHONY: test
 test: myhdl_vpi.so