yann@1: We know that the kernel headers are in place. Don't try to install them.
yann@1: 
yann@1: diff -dur uClibc-0.9.28.1.orig/Makefile uClibc-0.9.28.1/Makefile
yann@1: --- uClibc-0.9.28.1.orig/Makefile	2007-01-28 06:38:00.000000000 +0100
yann@1: +++ uClibc-0.9.28.1/Makefile	2007-01-28 18:55:46.000000000 +0100
yann@1: @@ -158,12 +158,10 @@
yann@1:  	$(INSTALL) -d $(PREFIX)$(DEVEL_PREFIX)lib
yann@1:  	$(INSTALL) -d $(PREFIX)$(DEVEL_PREFIX)include
yann@1:  	-$(INSTALL) -m 644 lib/*.[ao] $(PREFIX)$(DEVEL_PREFIX)lib/
yann@1: -	if [ "$(KERNEL_SOURCE)" = "$(DEVEL_PREFIX)" ] ; then \
yann@1: -		extra_exclude="--exclude include/linux --exclude include/asm'*'" ; \
yann@1: -	else \
yann@1: -		extra_exclude="" ; \
yann@1: -	fi ; \
yann@1: -	tar -chf - include --exclude .svn --exclude CVS $$extra_exclude \
yann@1: +	extra_exclude="--exclude include/linux --exclude include/asm'*'" ; \
yann@1: +	tar -chf - include --exclude .svn --exclude CVS \
yann@1: +	                   --exclude include/linux      \
yann@1: +	                   --exclude include/asm'*'     \
yann@1:  		| tar -xf - -C $(PREFIX)$(DEVEL_PREFIX)
yann@1:  	echo '/* Dont use _syscall#() macros; use the syscall() function */' > \
yann@1:  		$(PREFIX)$(DEVEL_PREFIX)include/bits/syscalls.h