diff --git a/cmake/FindPostgres.cmake b/cmake/FindPostgres.cmake
index e45a4450cea..cb9963b06e9 100644
--- a/cmake/FindPostgres.cmake
+++ b/cmake/FindPostgres.cmake
@@ -61,6 +61,13 @@ ENDIF(WIN32)
 
 IF (POSTGRES_INCLUDE_DIR AND POSTGRES_LIBRARY)
    SET(POSTGRES_FOUND TRUE)
+
+   IF(EXISTS "${POSTGRES_INCLUDE_DIR}/pg_config.h")
+     SET(HAVE_PGCONFIG TRUE)
+   ELSE(EXISTS "${POSTGRES_INCLUDE_DIR}/pg_config.h")
+     SET(HAVE_PGCONFIG FALSE)
+   ENDIF(EXISTS "${POSTGRES_INCLUDE_DIR}/pg_config.h")
+   
 ENDIF (POSTGRES_INCLUDE_DIR AND POSTGRES_LIBRARY)
 
 
diff --git a/src/app/CMakeLists.txt b/src/app/CMakeLists.txt
index 3950c08b027..90c6bc432c2 100644
--- a/src/app/CMakeLists.txt
+++ b/src/app/CMakeLists.txt
@@ -140,6 +140,10 @@ SET (QGIS_APP_MOC_HDRS
   )
 
 IF (POSTGRES_FOUND)
+  IF(HAVE_PGCONFIG)
+    ADD_DEFINITIONS(-DHAVE_PGCONFIG=1)
+  ENDIF(HAVE_PGCONFIG)
+
   SET (QGIS_APP_SRCS ${QGIS_APP_SRCS}
     qgsdbsourceselect.cpp
     qgsnewconnection.cpp
diff --git a/src/app/qgsdbsourceselect.cpp b/src/app/qgsdbsourceselect.cpp
index 35ec46f7e59..d78ac18241b 100644
--- a/src/app/qgsdbsourceselect.cpp
+++ b/src/app/qgsdbsourceselect.cpp
@@ -38,7 +38,9 @@ email                : sherman at mrcc.com
 #include <cassert>
 #include <iostream>
 
+#ifdef HAVE_PGCONFIG
 #include <pg_config.h>
+#endif
 
 QgsDbSourceSelect::QgsDbSourceSelect( QWidget *parent, Qt::WFlags fl )
     : QDialog( parent, fl ), mColumnTypeThread( NULL ), pd( 0 )