Move yet more stuff into the uClibc_config.h file

Makefile

@@ -147,6 +147,8 @@ uClibc_config.h: Config
 	@echo "#if !defined __FEATURES_H && !defined __need_uClibc_config_h" >> uClibc_config.h
 	@echo "#error Never include <bits/uClibc_config.h> directly; use <features.h> instead." >> uClibc_config.h
 	@echo "#endif" >> uClibc_config.h
+	@echo "#define linux 1" >> uClibc_config.h 
+	@echo "#define __linux_ 1" >> uClibc_config.h 
 	@if [ "$(HAS_MMU)" = "true" ] ; then \
 	    echo "#define __UCLIBC_HAS_MMU__ 1" >> uClibc_config.h ; \
 	else \

Rules.mak

@@ -34,7 +34,7 @@ endif
 
 ARFLAGS=r
 
-CCFLAGS=$(WARNINGS) $(OPTIMIZATION) -fno-builtin -nostdinc $(CPUFLAGS) -Dlinux -D__linux__ -I$(TOPDIR)include -I$(GCCINCDIR) -I. -D__LIBC__
+CCFLAGS=$(WARNINGS) $(OPTIMIZATION) -fno-builtin -nostdinc $(CPUFLAGS) -I$(TOPDIR)include -I$(GCCINCDIR) -I. -D__LIBC__
 
 CFLAGS=$(ARCH_CFLAGS) $(CCFLAGS) $(DEFS) $(ARCH_CFLAGS2)