Since commit 83ee768d6247b, we now have two places that define the QJSON type:
$ git grep 'typedef struct QJSON QJSON' include/migration/vmstate.h:typedef struct QJSON QJSON; migration/qjson.h:typedef struct QJSON QJSON; This breaks docker-test-build@centos6: In file included from /tmp/qemu-test/src/migration/savevm.c:59: /tmp/qemu-test/src/migration/qjson.h:16: error: redefinition of typedef 'QJSON' /tmp/qemu-test/src/include/migration/vmstate.h:30: note: previous declaration of 'QJSON' was here make: *** [migration/savevm.o] Error 1 This happens because CentOS 6 has an old GCC 4.4.7. Even if redefining a typedef with the same type is permitted since GCC 4.6, unless -pedantic is passed, we don't really need to do that on purpose. Let's have a single definition in <qemu/typedefs.h> instead. Signed-off-by: Greg Kurz <gr...@kaod.org> --- include/migration/vmstate.h | 2 -- include/qemu/typedefs.h | 1 + migration/qjson.h | 2 -- 3 files changed, 1 insertion(+), 4 deletions(-) diff --git a/include/migration/vmstate.h b/include/migration/vmstate.h index 3747110f951a..42b946ce902c 100644 --- a/include/migration/vmstate.h +++ b/include/migration/vmstate.h @@ -27,8 +27,6 @@ #ifndef QEMU_VMSTATE_H #define QEMU_VMSTATE_H -typedef struct QJSON QJSON; - typedef struct VMStateInfo VMStateInfo; typedef struct VMStateDescription VMStateDescription; typedef struct VMStateField VMStateField; diff --git a/include/qemu/typedefs.h b/include/qemu/typedefs.h index 325c72de3313..3ec0e13a967f 100644 --- a/include/qemu/typedefs.h +++ b/include/qemu/typedefs.h @@ -97,6 +97,7 @@ typedef struct QEMUTimer QEMUTimer; typedef struct QEMUTimerListGroup QEMUTimerListGroup; typedef struct QBool QBool; typedef struct QDict QDict; +typedef struct QJSON QJSON; typedef struct QList QList; typedef struct QNull QNull; typedef struct QNum QNum; diff --git a/migration/qjson.h b/migration/qjson.h index 2978b5f37121..41664f2d71b5 100644 --- a/migration/qjson.h +++ b/migration/qjson.h @@ -13,8 +13,6 @@ #ifndef QEMU_QJSON_H #define QEMU_QJSON_H -typedef struct QJSON QJSON; - QJSON *qjson_new(void); void qjson_destroy(QJSON *json); void json_prop_str(QJSON *json, const char *name, const char *str);