zfsonlinux/zfs — pull request #464 by Prakash-Surya (2011-11-25 18:48:21+00:00)
Title: In autoconf v2.68, AC_LANG_PROGRAM must be quoted

This change updates the AC_LANG_PROGRAM autoconf macro invocations to be
wrapped in quotes. As of autoconf version 2.68, the quotes are necessary
to prevent warnings from appearing. Specifically, the autoconf v2.68
Forward Porting Notes specifies:

It is important to note that you need to ensure that the call to
AC_LANG_SOURCE is quoted and not expanded, otherwise that will
cause the warning to appear nonetheless.