cmake: make pgsql REQUIRED if WITH_POSTGRESQL=ON

Author: bingmann

CMakeLists.txt

@@ -69,7 +69,7 @@ if(WITH_POSTGRESQL)
 
   set(PostgreSQL_ADDITIONAL_VERSIONS "9.3" "9.2")
 
-  find_package(PostgreSQL)
+  find_package(PostgreSQL REQUIRED)
 
   if(PostgreSQL_FOUND)
     set(SQL_LIBRARIES ${PostgreSQL_LIBRARIES} ${SQL_LIBRARIES})

cmake/FindPostgreSQL.cmake

@@ -169,8 +169,7 @@ endif()
 # Did we find anything?
 include(FindPackageHandleStandardArgs)
 find_package_handle_standard_args(PostgreSQL
-                                  REQUIRED_VARS PostgreSQL_LIBRARY
-                                  VERSION_VAR PostgreSQL_VERSION_STRING)
+                                  REQUIRED_VARS PostgreSQL_LIBRARY)
 set(PostgreSQL_FOUND  ${POSTGRESQL_FOUND})
 
 # Now try to get the include and library path.