diff --git a/CMakeLists.txt b/CMakeLists.txt
index 858dbaa..9d69ebe 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -37,7 +37,7 @@ if (ENABLE_SHARP)
   ExternalProject_Add(sharp
     SOURCE_DIR ${SHARP_SOURCE}
     BUILD_IN_SOURCE 1 
-    CONFIGURE_COMMAND ${SHARP_SOURCE}/configure --prefix=${DEP_BUILD}
+    CONFIGURE_COMMAND ${SHARP_SOURCE}/configure "CC=${CMAKE_C_COMPILER}" "CXX=${CMAKE_CXX_COMPILER}" --prefix=${DEP_BUILD}
     BUILD_COMMAND ${CMAKE_MAKE_PROGRAM}
     INSTALL_COMMAND echo "No install"
   )