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:
stdio
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