New module 'iswblank'. * lib/wctype.in.h (iswblank): Don't declare if GNULIB_ISWBLANK is 0. * modules/iswblank: New file. * modules/wctype-h (Files): Remove lib/iswblank.c. (Makefile.am): Substitute GNULIB_ISWBLANK. * m4/iswblank.m4: New file, partially extracted from m4/wctype_h.m4. * m4/wctype_h.m4 (gl_WCTYPE_MODULE_INDICATOR): New macro. (gl_WCTYPE_H_DEFAULTS): New macro. (gl_WCTYPE_H): Require it. Remove iswblank related code. * modules/iswblank-tests: New file. * tests/test-iswblank.c: New file, extraced from tests/test-wctype-h.c. * tests/test-wctype-h.c (main): Remove iswblank tests. * tests/test-wctype-h-c++.cc: Guard the signature test of iswblank. * doc/posix-functions/iswblank.texi: Mention module 'iswblank' instead of 'wctype-h'. * NEWS: Mention the change. * modules/mbchar (Depends-on): Add iswblank.

Description:
popen function that avoids clobbering std{in,out,err}.

Files:
lib/stdio--.h
lib/stdio-safer.h
lib/popen-safer.c
m4/stdio-safer.m4

Depends-on:
cloexec
open
popen
unistd-safer

configure.ac:
gl_POPEN_SAFER
gl_MODULE_INDICATOR([popen-safer])

Makefile.am:

Include:
"stdio-safer.h"

License:
GPL

Maintainer:
Eric Blake