Optimisation for configure builds

- CFLAG += -O2 now standard optimisation
- removed libSM, libICE where not needed on modern platforms

Author: physicalist

src/Makefile.BASE

@@ -10,7 +10,9 @@ RNG_CFLAGS ?= -O3 -D$(MACHINE) # -DLittleEndian has no effect
 ifeq ($(ARCH), powerpc)
   RNG_CFLAGS += -DBIGENDIAN
   CFLAGS += -DBIGENDIAN
-  LIBS += $(XPRELIBS)    # X11 backwards compatibility on 10.3.9
+  ifeq ($(MACHINE), Darwin)
+    LIBS += -lSM -lICE    # X11 backwards compatibility on 10.3.9
+  endif
 endif
 ifeq ($(ARCH), ppc64)
   RNG_CFLAGS += -DBIGENDIAN

src/Makefile.in

@@ -16,7 +16,7 @@ CC=@CC@
 CPP=@CPP@ -P
 LD=ld
 
-CFLAGS+=-D__NO_MATH_INLINES
+CFLAGS += -O2 -D__NO_MATH_INLINES
 
 RANLIB=@RANLIB@
 AR=ar
@@ -31,11 +31,11 @@ ifneq (@X_LIB@,)
 endif
 
 # X11's ICE, SM libraries break netcdf on OSX
-# (needed for backward compatibility?)
+# (uncomment if needed for backward compatibility)
 XPRELIBS=@X_PRE_LIBS@
-ifneq ($(MACHINE), Darwin)
-	LIBS += $(XPRELIBS)
-endif
+#ifneq ($(MACHINE), Darwin)
+#	LIBS += $(XPRELIBS)
+#endif
 
 
 # TODO: