diff -r c310ff1d697f -r a62cf50e2d86 scripts/build/mpfr.sh
--- a/scripts/build/mpfr.sh	Wed Apr 30 16:38:06 2008 +0000
+++ b/scripts/build/mpfr.sh	Thu May 22 22:41:54 2008 +0000
@@ -31,6 +31,7 @@
         --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