Modify cmake files for the mariadb database on linux

CMakeLists.txt

@@ -79,6 +79,7 @@ if(MYSQL_FOUND)
     message(STATUS "libs:" ${MYSQL_CLIENT_LIBS})
     message(STATUS "version:" ${MYSQL_VERSION_STRING})
     if(MYSQL_VERSION_STRING STREQUAL "")
+	set(MYSQL_FOUND false)
         message(STATUS "The mysql in your system is not the mariadb, so we can't use it in drogon")
     else()
         message(STATUS "Ok! We find the mariadb!")

cmake_modules/FindMySQL.cmake

@@ -66,7 +66,7 @@ IF (WIN32)
     $ENV{ProgramFiles}/MySQL/*/lib/${libsuffixDist}
     $ENV{SystemDrive}/MySQL/*/lib/${libsuffixDist})
 ELSE (WIN32)
-  FIND_LIBRARY(MYSQL_LIB NAMES mysqlclient_r mysqlclient
+  FIND_LIBRARY(MYSQL_LIB NAMES mariadbclient
     PATHS
     /usr/lib/mysql
     /usr/local/lib/mysql
@@ -84,20 +84,11 @@ ENDIF(MYSQL_LIB)
 
 set(MYSQL_VERSION_STRING "")
 
-if( MYSQL_INCLUDE_DIR AND EXISTS "${MYSQL_INCLUDE_DIR}/mariadb_version.h" )
-	file( STRINGS "${MYSQL_INCLUDE_DIR}/mariadb_version.h"
-		MYSQL_VERSION_H REGEX "^#define[ \t]+MARIADB_CLIENT_VERSION_STR[ \t]+\"[^\"]+\".*$" )
-	string( REGEX REPLACE
-		"^.*MARIADB_CLIENT_VERSION_STR[ \t]+\"([^\"]+)\".*$" "\\1" MYSQL_VERSION_STRING
-		"${MYSQL_VERSION_H}" )
-endif()
+EXEC_PROGRAM (grep ARGS "MARIADB_BASE_VERSION ${MYSQL_INCLUDE_DIR}/*.h|awk '{print $3}'" OUTPUT_VARIABLE MYSQL_VERSION_STRING)
 
 IF (MYSQL_INCLUDE_DIR AND MYSQL_LIB_DIR)
   SET(MYSQL_FOUND TRUE)
 
-  INCLUDE_DIRECTORIES(${MYSQL_INCLUDE_DIR})
-  LINK_DIRECTORIES(${MYSQL_LIB_DIR})
-
   FIND_LIBRARY(MYSQL_ZLIB zlib PATHS ${MYSQL_LIB_DIR})
   FIND_LIBRARY(MYSQL_TAOCRYPT taocrypt PATHS ${MYSQL_LIB_DIR})
   IF (MYSQL_LIB)

orm_lib/tests/CMakeLists.txt

@@ -1,3 +1,3 @@
 link_libraries(drogon trantor pthread dl)
 
-add_executable(db_test db_test.cc users.cc)
+add_executable(db_test db_test.cc Users.cc)