Separate the module 'waitpid' from the module 'sys_wait'. * lib/sys_wait.in.h (waitpid): Declare only if the 'waitpid' module is present. * m4/sys_wait_h.m4 (gl_SYS_WAIT_MODULE_INDICATOR): Invoke gl_MODULE_INDICATOR_FOR_TESTS. (gl_SYS_WAIT_H_DEFAULTS): Initialize GNULIB_WAITPID. * modules/sys_wait (Depends-on): Remove waitpid. (Makefile.am): Substitute GNULIB_WAITPID. * modules/waitpid (configure.ac): Invoke gl_SYS_WAIT_MODULE_INDICATOR. * tests/test-sys_wait-c++.cc (GNULIB_NAMESPACE::waitpid): Check the signature only if the 'waitpid' module is present. * doc/posix-functions/waitpid.texi: Mention the 'waitpid' module. * NEWS: Mention the change. * modules/grantpt (Depends-on): Add waitpid. * modules/wait-process (Depends-on): Likewise.

Description:
verror and verror_at_line functions: Error reporting with va_list.

Notice:
If you are using GNU gettext version 0.16.1 or older, add the following options
to XGETTEXT_OPTIONS in your po/Makevars:
  --flag=verror:3:c-format --flag=verror_at_line:5:c-format

Files:
lib/verror.h
lib/verror.c

Depends-on:
error
xvasprintf

configure.ac:
m4_ifdef([AM_XGETTEXT_OPTION],
  [AM_][XGETTEXT_OPTION([--flag=verror:3:c-format])
   AM_][XGETTEXT_OPTION([--flag=verror_at_line:5:c-format])])

Makefile.am:
lib_SOURCES += verror.h verror.c

Include:
"verror.h"

License:
GPL

Maintainer:
Eric Blake