configure.in: Warn that MPFR 2.2.0 is buggy.

	* configure.in: Warn that MPFR 2.2.0 is buggy.
	* configure: Regenerate.

From-SVN: r120262

ChangeLog

+2006-12-29  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
+
+	* configure.in: Warn that MPFR 2.2.0 is buggy.
+	* configure: Regenerate.
+
 2006-12-27  Ian Lance Taylor  <iant@google.com>
 
 	* configure.in: When removing Makefiles to force a reconfigure, also

configure.in

@@ -1117,14 +1117,22 @@ choke me
 if test x"$have_gmp" = xyes; then
   saved_LIBS="$LIBS"
   LIBS="$LIBS $gmplibs"
+  dnl MPFR 2.2.0 is acceptable but buggy, MPFR 2.2.1 is better.
   AC_MSG_CHECKING([for correct version of mpfr.h])
   AC_TRY_LINK([#include <gmp.h>
 #include <mpfr.h>],[
-#if MPFR_VERSION_MAJOR < 2 || (MPFR_VERSION_MAJOR == 2 && MPFR_VERSION_MINOR < 2)
+#if MPFR_VERSION < MPFR_VERSION_NUM(2,2,0)
   choke me
 #endif
   mpfr_t n; mpfr_init(n);
-], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no]); have_gmp=no])
+], [AC_TRY_LINK([#include <gmp.h>
+#include <mpfr.h>],[
+#if MPFR_VERSION < MPFR_VERSION_NUM(2,2,1)
+  choke me
+#endif
+  mpfr_t n; mpfr_init(n);
+], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
+   [AC_MSG_RESULT([no]); have_gmp=no])
   LIBS="$saved_LIBS"
 fi
 CFLAGS="$saved_CFLAGS"