GNU Autoconf Archive branch master updated. v2013.11.01-12-g1156e13

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- Log -----------------------------------------------------------------
commit 1156e1362b82616ec34ab037fd334f4bf1c7f7c4
Author: Mike Frysinger <address@hidden>
Date:   Tue Jan 14 01:54:54 2014 -0500

    AX_REQUIRE_DEFINED: new helper for requiring macros exist
    
    In cases where we want to require that a macro exists, but not call it,
    introduce a new AX_REQUIRE_DEFINED helper.  The existing AC_REQUIRE macro
    will call its argument and does not allow for passing of additional args
    to the macro.
    
    Once we have this in place, cut a few callers over to it to fix bugs where
    they'd accidentally call other helpers w/out any flags.

-----------------------------------------------------------------------

Summary of changes:
 m4/ax_append_compile_flags.m4     |    6 +++---
 m4/ax_append_link_flags.m4        |    6 +++---
 m4/ax_cflags_force_c89.m4         |    4 ++--
 m4/ax_cflags_strict_prototypes.m4 |    4 ++--
 m4/ax_cflags_warn_all.m4          |    4 ++--
 m4/ax_require_defined.m4          |   37 +++++++++++++++++++++++++++++++++++++
 6 files changed, 49 insertions(+), 12 deletions(-)
 create mode 100644 m4/ax_require_defined.m4


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