[Bro-Dev] #294: Autoconf trouble with autoconf >= 2.64

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#294: Autoconf trouble with autoconf >= 2.64
--------------------+-------------------------------------------------------
Reporter:  gregor   |       Owner:     
    Type:  Problem  |      Status:  new
Priority:  Normal   |   Component:  Bro
 Version:  1.5.1    |    Keywords:     
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 Hi,

 yet another set of autoconf problems. The attached patch fixes them.
 Without it, autogen.sh will not run (correctly) on systems with autoconf
 >= 2.64

 Fixes include:
 * `configure.in:33: warning: AC_REQUIRE: 'AC_PROG_CC' was expanded before
 it was required`
   ** which will lead to
   {{{
   ./configure: line xxxx: syntax error near unexpected token `newline'
   ./configure: line xxxx: `yes:'
   }}}

 * warning: AC_LANG_CONFTEST: no AC_LANG_SOURCE call detected in body

 * Subtlety involving AC_CHECK_HEADER, that lead to
    {{{
    ./configure: line 6779: ac_fn_c_check_header_compile: command not found
    }}}
    messages when running configure


 cu
 gregor

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Ticket URL: <http://tracker.icir.org/bro/ticket/294>
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