Dear Marek Vasut,
In message 1369070715-9585-2-git-send-email-marex@denx.de you wrote:
Prefix HOSTCC and CC with CCACHE variable to allow easy use of ccache. In case the user wants to use ccache, exporting CCACHE=ccache will do the trick. It is of course possible to either make the cross-compiler name into a shellscript which invokes the ccache and the compiler, but setting this variable makes use of ccache easier and more convenient.
...
-AS = $(CROSS_COMPILE)as +AS = $(CCACHE) $(CROSS_COMPILE)as
# Always use GNU ld LD = $(shell if $(CROSS_COMPILE)ld.bfd -v > /dev/null 2>&1; \ then echo "$(CROSS_COMPILE)ld.bfd"; else echo "$(CROSS_COMPILE)ld"; fi;)
-CC = $(CROSS_COMPILE)gcc +CC = $(CCACHE) $(CROSS_COMPILE)gcc CPP = $(CC) -E
Why not for CPP ?
Best regards,
Wolfgang Denk