describe errata for MPFR. close JuliaLang#3204

tekverkp · May 25, 2013 · 80a0c51 · 80a0c51
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diff --git a/README.windows.md b/README.windows.md
@@ -119,3 +119,4 @@ Important Build Errata
 
 - LLVM doesn't build with the newly released 4.8 SEH gcc for 64-bit Windows because of an incorrect preprocessor definition. In deps/llvm-3.2/lib/ExecutionEngine/JIT/JIT.cpp, find the section that defines HAVE_EHTABLE_SUPPORT and replace it with an unconditional 0
 
+- While building on native windows, MPFR tests fail. To fix this, edit deps/Makefile and add `MPFR_OPTS += --disable-thread-safe CFLAGS="-DNPRINTF_L -DNPRINTF_T -DNPRINTF_J"` somewhere