diff --git a/third_party/curl/CMake/OtherTests.cmake b/third_party/curl/CMake/OtherTests.cmake
index 7701c0e..7dc1c2f 100644
--- a/third_party/curl/CMake/OtherTests.cmake
+++ b/third_party/curl/CMake/OtherTests.cmake
@@ -72,6 +72,19 @@ check_c_source_compiles("${_source_epilogue}
     (void)ts;
     return 0;
   }" HAVE_STRUCT_TIMEVAL)
+if (HAVE_SYS_TIME_H)
+check_c_source_compiles("${_source_epilogue}
+  #include <sys/time.h>
+  int main(void)
+  {
+    struct timeval ts;
+    ts.tv_sec  = 0;
+    ts.tv_usec = 0;
+    (void)ts;
+    return 0;
+    }" HAVE_STRUCT_TIMEVAL_BY_SYS_TIMEVAL)
+   set(HAVE_STRUCT_TIMEVAL ${HAVE_STRUCT_TIMEVAL_BY_SYS_TIMEVAL})
+endif()
 
 unset(CMAKE_TRY_COMPILE_TARGET_TYPE)