MDEV-13773 client packages need my_global.h and/or my_config.h

include/CMakeLists.txt

@@ -93,3 +93,22 @@ IF(NOT ${CMAKE_CURRENT_BINARY_DIR} STREQUAL ${CMAKE_CURRENT_SOURCE_DIR})
   INSTALL_PRIVATE(${CMAKE_CURRENT_SOURCE_DIR})
 ENDIF()
 
+MACRO(INSTALL_COMPAT_HEADER file footer)
+  INSTALL(CODE "FILE(WRITE \$ENV{DESTDIR}\${CMAKE_INSTALL_PREFIX}/${INSTALL_INCLUDEDIR}/${file}
+\"/* Do not edit this file directly, it was auto-generated by cmake */
+
+#warning This file should not be included by clients, include only <mysql.h>
+${footer}
+\")" COMPONENT Development)
+ENDMACRO()
+
+INSTALL_COMPAT_HEADER(my_global.h "")
+INSTALL_COMPAT_HEADER(my_config.h "")
+INSTALL_COMPAT_HEADER(my_sys.h "")
+INSTALL_COMPAT_HEADER(mysql_version.h "
+#include <mariadb_version.h>
+#define LIBMYSQL_VERSION MARIADB_CLIENT_VERSION_STR
+")
+INSTALL_COMPAT_HEADER(mysql_com.h "
+#include <mariadb_com.h>
+")