yann@402: # http://in3www.epfl.ch/~schaffne/linux-2.4-bsd-expr.patch
yann@402: The following makes it possible to compile linux 2.4.19 to 2.4.25 on Mac OS X,
yann@402: where "expr" doesn't understand the "length" construct
yann@402: (which it doesn't have to, according to SuSv3
yann@402: (see http://www.opengroup.org/onlinepubs/007904975/utilities/expr.html)
yann@402: See also http://sources.redhat.com/ml/crossgcc/2004-02/msg00131.html
yann@402: 
yann@402: Fixes error
yann@402:   expr: syntax error
yann@402:   KERNELRELEASE "2.4.21" exceeds 64 characters
yann@402:   make: *** [include/linux/version.h] Error 1
yann@402: 
yann@402: 
yann@402: diff -ur linux-2.4.23-old/Makefile linux-2.4.23/Makefile
yann@402: --- linux-2.4.23-old/Makefile	2003-12-09 14:27:56.000000000 +0100
yann@402: +++ linux-2.4.23/Makefile	2003-12-09 14:28:37.000000000 +0100
yann@402: @@ -353,7 +353,7 @@
yann@402:  	@rm -f .ver1
yann@402:  
yann@402:  include/linux/version.h: ./Makefile
yann@402: -	@expr length "$(KERNELRELEASE)" \<= $(uts_len) > /dev/null || \
yann@402: +	@expr "$(KERNELRELEASE)" : '.*' \<= $(uts_len) > /dev/null || \
yann@402:  	  (echo KERNELRELEASE \"$(KERNELRELEASE)\" exceeds $(uts_len) characters >&2; false)
yann@402:  	@echo \#define UTS_RELEASE \"$(KERNELRELEASE)\" > .ver
yann@402:  	@echo \#define LINUX_VERSION_CODE `expr $(VERSION) \\* 65536 + $(PATCHLEVEL) \\* 256 + $(SUBLEVEL)` >> .ver