Makefiles: switch from suffix rules to pattern rules. As suffix rules

can't have dependencies, so if you change a .h file, it fails to
recompile the other dependencies. Grmpf!
This does mean that we require GNU Make (gmake) from now on.

src/Makefile.in

@@ -83,7 +83,7 @@ mods:
 version.c: version.c.SH
 	$(SHELL) version.c.SH
 
-.c.o:	$(INCLUDES)
+%.o:	%.c $(INCLUDES)
 	$(CC) $(CFLAGS) $(BINCFLAGS) -c $<
 
 clean:

src/modules/Makefile.in

@@ -105,7 +105,7 @@ clean:
 	cd third; $(MAKE) clean
 
 # Generic *.so rule:
-.c.so: $(INCLUDES)
+%.so: %.c $(INCLUDES)
 	$(CC) $(CFLAGS) $(MODULEFLAGS) -DDYNAMIC_LINKING \
 		-o $@ $<
 

src/modules/chanmodes/Makefile.in

@@ -53,6 +53,6 @@ build: $(MODULES)
 clean:
 	$(RM) -f *.o *.so *~ core
 
-.c.so: $(INCLUDES)
+%.so: %.c $(INCLUDES)
 	$(CC) $(CFLAGS) $(MODULEFLAGS) -DDYNAMIC_LINKING \
 		-o $@ $<

src/modules/extbans/Makefile.in

@@ -51,6 +51,6 @@ build: $(MODULES)
 clean:
 	$(RM) -f *.o *.so *~ core
 
-.c.so: $(INCLUDES)
+%.so: %.c $(INCLUDES)
 	$(CC) $(CFLAGS) $(MODULEFLAGS) -DDYNAMIC_LINKING \
 		-o $@ $<

src/modules/snomasks/Makefile.in

@@ -48,6 +48,6 @@ build: $(MODULES)
 clean:
 	$(RM) -f *.o *.so *~ core
 
-.c.so: $(INCLUDES)
+%.so: %.c $(INCLUDES)
 	$(CC) $(CFLAGS) $(MODULEFLAGS) -DDYNAMIC_LINKING \
 		-o $@ $<

src/modules/usermodes/Makefile.in

@@ -49,6 +49,6 @@ build: $(MODULES)
 clean:
 	$(RM) -f *.o *.so *~ core
 
-.c.so: $(INCLUDES)
+%.so: %.c $(INCLUDES)
 	$(CC) $(CFLAGS) $(MODULEFLAGS) -DDYNAMIC_LINKING \
 		-o $@ $<