diff --git a/build_curl.sh b/build_curl.sh
old mode 100644
new mode 100755
index 6d40296..4fb9d47
--- a/build_curl.sh
+++ b/build_curl.sh
@@ -32,6 +32,10 @@ args+=($build_testing)
 args+=($build_type)
 args+=($custom_arch_var)
 
+if [ ! -z "$EXTRA_CMAKE_ENV" ]; then
+  args+=("-DCURL_STATIC_CRT=ON")
+fi
+
 # EXTRA_CMAKE_ENV is set by setup_clang_env.sh to build for windows.
 # You must run setup_clang_env.sh before calling this script if you build for windows.
 
diff --git a/build_env_x64.bat b/build_env_x64.bat
old mode 100644
new mode 100755
diff --git a/build_env_x86.bat b/build_env_x86.bat
old mode 100644
new mode 100755
diff --git a/build_linux.sh b/build_linux.sh
old mode 100644
new mode 100755
diff --git a/build_set_protobuf_directories.bat b/build_set_protobuf_directories.bat
old mode 100644
new mode 100755
diff --git a/build_steamos.sh b/build_steamos.sh
old mode 100644
new mode 100755
diff --git a/build_win_debug_experimental.bat b/build_win_debug_experimental.bat
old mode 100644
new mode 100755
diff --git a/build_win_find_interfaces.bat b/build_win_find_interfaces.bat
old mode 100644
new mode 100755
diff --git a/build_win_lobby_connect.bat b/build_win_lobby_connect.bat
old mode 100644
new mode 100755
diff --git a/build_win_release.bat b/build_win_release.bat
old mode 100644
new mode 100755
diff --git a/build_win_release_experimental.bat b/build_win_release_experimental.bat
old mode 100644
new mode 100755
diff --git a/curl/CMakeLists.txt b/curl/CMakeLists.txt
index 7894dc9..cfaca4f 100644
--- a/curl/CMakeLists.txt
+++ b/curl/CMakeLists.txt
@@ -38,9 +38,6 @@ else()
   else()
     message(FATAL_ERROR "Arch unknown")
   endif()
-  set(CMAKE_C_FLAGS   "${CMAKE_C_FLAGS}   -fvisibility=hidden -fPIC")
-  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fvisibility=hidden -fPIC")
-  
 endif()
 
 set(CMAKE_CXX_STANDARD 11)