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| author | Roland McGrath <roland@gnu.org> | 1999-01-23 13:08:38 +0000 |
|---|---|---|
| committer | Roland McGrath <roland@gnu.org> | 1999-01-23 13:08:38 +0000 |
| commit | c0d9fffd58bd33e757980216d789921f9c0fa5a3 (patch) | |
| tree | e6e3f6ea266c3fea3bd1428d0c1ca50254ed06f0 /sysdeps | |
| parent | d26bda6b531ac531352d91c9c3ac7942ac4ffd58 (diff) | |
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1999-01-23 Roland McGrath <roland@baalperazim.frob.com>
* sysdeps/gnu/errlist.awk: Add comment.
Diffstat (limited to 'sysdeps')
| -rw-r--r-- | sysdeps/gnu/errlist.awk | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/sysdeps/gnu/errlist.awk b/sysdeps/gnu/errlist.awk index b97f078910..0616b0303d 100644 --- a/sysdeps/gnu/errlist.awk +++ b/sysdeps/gnu/errlist.awk @@ -25,9 +25,17 @@ # @end deftypevr BEGIN { - alias["EWOULDBLOCK"] = "EAGAIN"; - alias["EDEADLOCK"] = "EDEADLK"; - alias["ENOTSUP"] = "EOPNOTSUPP"; + + # Here we list the E* names that might be duplicate names for the + # same integer value on some systems. This causes the code below + # to generate ``#if defined (ALIAS) && ALIAS != ORIGINAL'' in the code, + # so the output does not presume that these are in fact aliases. + # We list here all the known potential cases on any system, + # so that the C source we produce will do the right thing based + # on the actual #define'd values it's compiled with. + alias["EWOULDBLOCK"]= "EAGAIN"; + alias["EDEADLOCK"] = "EDEADLK"; + alias["ENOTSUP"] = "EOPNOTSUPP"; print "/* This file is generated from errno.texi by errlist.awk. */" print ""; |