On Wed, 19 Jan 2011, Dan Nicholson wrote:
We want to try to ensure that we get C99 if XORG_STRICT_OPTION is
used. So, if we AC_REQUIRE([AC_PROG_CC]) before
AC_REQUIRE([AC_PROG_CC_C99]) in XORG_STRICT_OPTION, then it should
ensure the ordering, right? Or can you just keep calling them and the
last one wins? I haven't checked.
AC_REQUIRE doesn't ensure any specific ordering, and has the additional
drawback that the requisitioned macros may be substituted in a
non-intuitive location relative to the call.
--
Thomas E. Dickey
http://invisible-island.net
ftp://invisible-island.net
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