Re: + git-klibc-mktemp-fix.patch added to -mm tree

[Keith Owens]

"H. Peter Anvin" (on Sat, 08 Apr 2006 13:27:06 -0700) wrote:
>Either which way; I have a better fix for the bison issue (this all has 
>to do with the fact that make's handling of tools that output more than 
>one file at a time is at the very best insane)

Hit the same problem back in the 2.5 kbuild days, and worked around it
with some dummy dependency rules.  Like this one for bison/yacc.

side_effect(aicasm_gram.tab.h aicasm_gram.tab.c)

which expands to

$(objtree)/aicasm_gram.tab.h: $objtree/aicasm_gram.tab.c
	@/bin/true

That forces make to wait until aicasm_gram.tab.c is built before using
aicasm_gram.tab.h, and allows the following code to depend on either
aicasm_gram.tab.h or aicasm_gram.tab.c without any races.  The command
should not get executed, but you still need a command to keep make
happy.

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