diff -r 0ebb814eb9f8 -r c2a68cba6c0c scripts/build/mpfr.sh
--- a/scripts/build/mpfr.sh	Mon May 19 21:41:19 2008 +0000
+++ b/scripts/build/mpfr.sh	Sun Jun 15 19:55:56 2008 +0000
@@ -32,6 +32,7 @@
         --build=${CT_BUILD}                                 \
         --host=${CT_HOST}                                   \
         --prefix="${CT_PREFIX_DIR}"                         \
+        --enable-thread-safe                                \
         --disable-shared --enable-static                    \
         --with-gmp="${CT_PREFIX_DIR}"                       2>&1 |CT_DoLog ALL