diff -rup a/ogr/ogrct.cpp b/ogr/ogrct.cpp
--- a/ogr/ogrct.cpp	2016-01-26 16:21:46.000000000 +0100
+++ b/ogr/ogrct.cpp	2016-02-23 12:41:38.368276062 +0100
@@ -92,7 +92,7 @@ static void    (*pfn_pj_ctx_free)( projC
 #elif defined(__APPLE__)
 #  define LIBNAME      "libproj.dylib"
 #else
-#  define LIBNAME      "libproj.so"
+#  define LIBNAME      "libproj.so.12"
 #endif
 
 /************************************************************************/