On Thu, 12 Dec 1996, David Engel wrote:
> > I had to relink as described in the
> > /usr/src/linux/README.
>
> For the umpteenth time. You don't need these links to compile the
> kernel. I haven't had those links on any of my systems in over a year
> and it hasn't stopped me from compiling hundreds of kernels.
>
Hear, hear!
Since at least 1.3.something, the kernel makefile explicitly points gcc to
the kernel include files. So unless you compile antique kernels for fun,
you do *not* need the said links.
As further proof, here are the relevant extracts from my toplevel 2.0.27
kernel makefile:
---snip---
TOPDIR := $(shell if [ "$$PWD" != "" ]; then echo $$PWD; else pwd; fi)
HPATH = $(TOPDIR)/include
FINDHPATH = $(HPATH)/asm $(HPATH)/linux $(HPATH)/scsi $(HPATH)/net
HOSTCC =gcc -I$(HPATH)
HOSTCFLAGS =-O2 -fomit-frame-pointer
CROSS_COMPILE =
AS =$(CROSS_COMPILE)as
LD =$(CROSS_COMPILE)ld
CC =$(CROSS_COMPILE)gcc -D__KERNEL__ -I$(HPATH)
CPP =$(CC) -E
---snip---
Notice how -I$(TOPDIR)/include (i.e. -I$(HPATH)) is included on *every*
gcc command. QED.
Read question 1 of /usr/doc/libc5/FAQ.gz if you want to know why Debian
doesn't use symlinks.
Christian
PS Could someone who is on linux-kernel volunteer to at least ask the
kernel people to update the kernel's README? It still says "make sure your
/usr/include/asm, /usr/include/linux, and /usr/include/scsi directories
are just symlinks to the kernel sources" even though people don't need to
do that anymore to compile the kernel...
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