diff --git a/config/config.h.cmake b/config/config.h.cmake
index 9c2c2005..938c3ba2 100644
--- a/config/config.h.cmake
+++ b/config/config.h.cmake
@@ -8,10 +8,6 @@
 /* Define to 1 if you want to use `libcurl' in httpIO. */
 #cmakedefine EXV_USE_CURL 1
 
-/* Define to 1 if you have the declaration of `strerror_r', and to 0 if you
-   don't. */
-#cmakedefine EXV_HAVE_DECL_STRERROR_R 1
-
 /* Define to 1 if you have the `gmtime_r' function. */
 #cmakedefine EXV_HAVE_GMTIME_R 1
 
diff --git a/src/version.cpp b/src/version.cpp
index 8a21552d..1f7b3afa 100644
--- a/src/version.cpp
+++ b/src/version.cpp
@@ -329,10 +329,6 @@ void Exiv2::dumpLibraryInfo(std::ostream& os,const exv_grep_keys_t& keys)
     int enable_video     =0;
     int enable_webready  =0;
 
-#ifdef EXV_HAVE_DECL_STRERROR_R
-    have_strerror_r=1;
-#endif
-
 #ifdef EXV_HAVE_GMTIME_R
     have_gmtime_r=1;
 #endif