diff --git a/CMakeLists.txt b/CMakeLists.txt
index f52458a5..e3528b6b 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -468,19 +468,17 @@ if(NOT INLINE_WORKS)
 endif()
 message(STATUS "INLINE = ${INLINE} (FORCE_INLINE = ${FORCE_INLINE})")
 
-if(WITH_TURBOJPEG)
-  if(MSVC)
-    set(THREAD_LOCAL "__declspec(thread)")
-  else()
-    set(THREAD_LOCAL "__thread")
-  endif()
-  check_c_source_compiles("${THREAD_LOCAL} int i;  int main(void) { i = 0;  return i; }" HAVE_THREAD_LOCAL)
-  if(HAVE_THREAD_LOCAL)
-    message(STATUS "THREAD_LOCAL = ${THREAD_LOCAL}")
-  else()
-    message(WARNING "Thread-local storage is not available.  The TurboJPEG API library's global error handler will not be thread-safe.")
-    unset(THREAD_LOCAL)
-  endif()
+if(MSVC)
+  set(THREAD_LOCAL "__declspec(thread)")
+else()
+  set(THREAD_LOCAL "__thread")
+endif()
+check_c_source_compiles("${THREAD_LOCAL} int i;  int main(void) { i = 0;  return i; }" HAVE_THREAD_LOCAL)
+if(HAVE_THREAD_LOCAL)
+  message(STATUS "THREAD_LOCAL = ${THREAD_LOCAL}")
+else()
+  message(WARNING "Thread-local storage is not available.  The TurboJPEG API library's global error handler will not be thread-safe.")
+  unset(THREAD_LOCAL)
 endif()
 
 if(UNIX AND NOT APPLE)