On Fri, 18 Nov 2005, Rob Landley wrote:
was going on. (And #2 was the case: once I found out it was the 0 length
files, I could fix that. I didn't expect 0 length files screwing up the
#include search paths. The #include search paths are confusing, I'm still a
bit fuzzy on the difference between include and include2, actually...)
0-length files after patching is generally due to slightly incorrectly
formatted patches, and can screw up a lot of things.
From the patch man page:
you can remove a file by sending out a context diff that compares
the file to be deleted with an empty file dated the Epoch. The
file will be removed unless patch is conforming to POSIX and the
-E or --remove-empty-files option is not given.
A few other formats also works, but what is said above is the safest patch
format for removal of files.
If you find patches which removes files using a format not complying with
the above then it may be wise to ask the person who published the patch to
change his routines to make correctly formatted patches. On the sad side
there is a number of widespread tools not generating such patches
correctly (CVS is one.. have a cleanpatch script at devel.squid-cache.org
fixing this and a few other CVS diff -u stupidities)
Regarding the include path, Compliers, make etc just searches their paths
until a file is found, no attempt in verifying the validity of the file is
made. If the found file is empty then in the input at that stage is
empty, and if the actual file which was supposed to be found is in a later
element in the search path then you get screwed.
Regards
Henrik
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