New module 'logbf'. * lib/math.in.h (logbf): New declaration. * lib/logbf.c: New file. * m4/logbf.m4: New file. * m4/math_h.m4 (gl_MATH_H): Test whether logbf is declared. (gl_MATH_H_DEFAULTS): Initialize GNULIB_LOGBF, HAVE_LOGBF, REPLACE_LOGBF. * modules/math (Makefile.am): Substitute GNULIB_LOGBF, HAVE_LOGBF, REPLACE_LOGBF. * modules/logbf: New file. * tests/test-math-c++.cc: Check the declaration of logbf. * doc/posix-functions/logbf.texi: Mention the new module.

Description:
popen() function: open a stream to a shell command.

Files:
lib/popen.c
m4/popen.m4

Depends-on:
stdio
open            [test $HAVE_POPEN = 0 || test $REPLACE_POPEN = 1]

configure.ac:
gl_FUNC_POPEN
if test $HAVE_POPEN = 0 || test $REPLACE_POPEN = 1; then
  AC_LIBOBJ([popen])
  gl_PREREQ_POPEN
fi
gl_STDIO_MODULE_INDICATOR([popen])

Makefile.am:

Include:
<stdio.h>

License:
LGPL

Maintainer:
Eric Blake