make sure to use makefile.shared on Mac

makefile

@@ -13,14 +13,18 @@ silent=@
 silent_stdout= > /dev/null
 endif
 
+PLATFORM := $(shell uname | sed -e 's/_.*//')
+
+ifneq ($(MAKECMDGOALS),clean)
+ifeq ($(PLATFORM), Darwin)
+$(error Can't build static library on Mac, please use makefile.shared)
+endif
+endif
+
 # ranlib tools
 ifndef RANLIB
-ifeq ($(PLATFORM), Darwin)
-RANLIB:=$(PREFIX)ranlib -c
-else
 RANLIB:=$(PREFIX)ranlib
 endif
-endif
 INSTALL_CMD = install
 
 #Output filenames for various targets.

makefile.shared

@@ -7,6 +7,8 @@
 #
 #  (GNU make only)
 
+PLATFORM := $(shell uname | sed -e 's/_.*//')
+
 ifndef LT
   ifeq ($(PLATFORM), Darwin)
     LT:=glibtool

makefile_include.mk

@@ -7,8 +7,6 @@ VERSION=1.17
 # http://www.gnu.org/software/libtool/manual/html_node/Updating-version-info.html
 VERSION_LT=0:117
 
-PLATFORM := $(shell uname | sed -e 's/_.*//')
-
 # Compiler and Linker Names
 ifndef PREFIX
   PREFIX:=