no multithread in proj

modules/slimFunction/CMakeLists.txt

@@ -70,7 +70,7 @@ if(ENABLE_PROJ)
     INSTALL_COMMAND ""
     PREFIX libproj
     BINARY_DIR libproj/build
-    CMAKE_ARGS -DCMAKE_BUILD_TYPE=${CMAKE_BUILD_TYPE} -DCMAKE_TOOLCHAIN_FILE=${CMAKE_TOOLCHAIN_FILE} -DBUILD_CS2CS=NO -DBUILD_PROJ=NO -DBUILD_GEOD=NO -DBUILD_NAD2BIN=NO -DPROJ4_TESTS=NO -DBUILD_LIBPROJ_SHARED=NO  ${PROJ_FPIC}
+    CMAKE_ARGS -DCMAKE_BUILD_TYPE=${CMAKE_BUILD_TYPE} -DCMAKE_TOOLCHAIN_FILE=${CMAKE_TOOLCHAIN_FILE} -DBUILD_CS2CS=NO -DBUILD_PROJ=NO -DBUILD_GEOD=NO -DBUILD_NAD2BIN=NO -DPROJ4_TESTS=NO -DBUILD_LIBPROJ_SHARED=NO  -DUSE_THREAD=NO ${PROJ_FPIC}
   )
   set (PROJ_INC ${CMAKE_CURRENT_BINARY_DIR}/libproj/src/libproj/src)
   message("slimFunction configured with PROJ")