Remove second AC_PREREQ, require version 2.60

Remove a second AC_PREREQ and bump the required autoconf version to
2.60.

Version 2.59c was a testing release, published in April 2006. Version
2.60 was the stable release afterwards, released in June 2006.

Signed-off-by: Daniel Martin <consume.noise@gmail.com>
Reviewed-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Reviewed-by: Uli Schlachter <psychon@znc.in>
Tested-By: Ran Benita <ran234@gmail.com>

diff --git a/configure.ac b/configure.ac
index 3ad5f7b..75af4ea 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -2,7 +2,7 @@
 # Process this file with autoconf to produce a configure script.
 
 # Initialize Autoconf
-AC_PREREQ(2.57)
+AC_PREREQ([2.60])
 AC_INIT([libxcb],
         1.9,
         [xcb@lists.freedesktop.org])
@@ -138,13 +138,6 @@ AC_SUBST(CWARNFLAGS)
 
 XCB_CHECK_VISIBILITY()
 
-# htmldir is not defined prior to autoconf 2.59c, so on earlier versions
-# set an equivalent value.
-AC_PREREQ([2.59c], [], [AC_SUBST([htmldir], [m4_ifset([AC_PACKAGE_TARNAME],
-         ['${datadir}/doc/${PACKAGE_TARNAME}'],
-         ['${datadir}/doc/${PACKAGE}'])
-])])
-
 XCB_CHECK_DOXYGEN()
 
 AC_CHECK_FUNC(getaddrinfo, [AC_DEFINE(HAVE_GETADDRINFO, 1, [getaddrinfo() function is available])], )