diff -r 8ad2773e7ae3 -r 42c618ca576e scripts/build/companion_libs/mpfr.sh
--- a/scripts/build/companion_libs/mpfr.sh	Mon Aug 03 00:49:25 2009 +0200
+++ b/scripts/build/companion_libs/mpfr.sh	Wed Feb 03 00:24:24 2010 +0100
@@ -75,6 +75,7 @@
     case "${CT_HOST}" in
         *cygwin*)   mpfr_opt="--disable-thread-safe";;
         *mingw*)    mpfr_opt="--disable-thread-safe";;
+        *darwin*)   mpfr_opt="--disable-thread-safe";;
         *)          mpfr_opt="--enable-thread-safe";;
     esac