diff --git a/appveyor.yml b/appveyor.yml
index f16d4c0..259e55e 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -13,6 +13,9 @@ install:
   - C:\rustup-init.exe -y --default-host x86_64-pc-windows-gnu
   - set PATH=%PATH%;C:\Users\appveyor\.cargo\bin
   - rustup target add i686-pc-windows-gnu
+  - copy src\cargo\config C:\Users\appveyor\.cargo\
+  - C:\Rtools\mingw_32\bin\ar cru c:\Rtools\mingw_32\lib\gcc\i686-w64-mingw32\4.9.3\libgcc_eh.a
+  - C:\Rtools\mingw_64\bin\ar cru c:\Rtools\mingw_64\lib\gcc\x86_64-w64-mingw32\4.9.3\libgcc_eh.a
   - rustc -V
   - cargo -V
 
diff --git a/src/myrustlib/.cargo/config b/src/cargo/config
similarity index 68%
rename from src/myrustlib/.cargo/config
rename to src/cargo/config
index 8baec82..66469b1 100644
--- a/src/myrustlib/.cargo/config
+++ b/src/cargo/config
@@ -1,5 +1,7 @@
 [target.x86_64-pc-windows-gnu]
 linker = "c:/Rtools/mingw_64/bin/gcc"
+rustc-link-lib=static=-lpthread
 
 [target.i686-pc-windows-gnu]
 linker = "c:/Rtools/mingw_32/bin/gcc"
+rustc-link-lib=static=-lpthread