Fix strerror on Interix. * lib/string_.h (strerror): Declare replacement. * doc/functions/strerror.texi (strerror): Document the Interix shortcoming. * modules/string (Makefile.am): Support new hooks. * m4/string_h.m4 (gl_HEADER_STRING_H_DEFAULTS): Add new hooks. * m4/strerror.m4 (gl_FUNC_STRERROR): Defer to gl_FUNC_STRERROR_SEPARATE. (gl_FUNC_STRERROR_SEPARATE): Check for Interix bug. * lib/strerror.c (rpl_strerror): Provide replacement. * modules/strerror (Depends-on): Add string. (configure.ac): Detect use of module. * tests/test-strerror.c: New file. * modules/strerror-tests: New test module. * modules/argp (Depends-on): Add strerror. * modules/error (Depends-on): Likewise. Reported by Martin Koeppe. Signed-off-by: Eric Blake <ebb9@byu.net>

Description:
Hierarchical processing of command line arguments.

Files:
lib/argp.h
lib/argp-ba.c
lib/argp-eexst.c
lib/argp-fmtstream.c
lib/argp-fmtstream.h
lib/argp-fs-xinl.c
lib/argp-help.c
lib/argp-namefrob.h
lib/argp-parse.c
lib/argp-pin.c
lib/argp-pv.c
lib/argp-pvh.c
lib/argp-xinl.c
m4/argp.m4

Depends-on:
alloca
dirname
getopt
strchrnul
sysexits
malloc
mempcpy
strndup
strcase
extensions
vsnprintf
sleep
strerror

configure.ac:
gl_ARGP

Makefile.am:
lib_SOURCES += argp.h argp-ba.c argp-eexst.c \
           argp-fmtstream.c argp-fmtstream.h argp-fs-xinl.c argp-help.c \
           argp-namefrob.h argp-parse.c argp-pin.c argp-pv.c argp-pvh.c \
           argp-xinl.c

Include:
"argp.h"

License:
LGPL

Maintainer:
Sergey Poznyakoff, glibc