编译mt6582出现问题

在编译82出现问题，我的路径是/home/sda7/mtk6582dualLTE/，不知道编译过程中会出现/home/build_master/source/T9200L_AUX/Driver_U519_T9200L_AUX/alps，产生的这个似乎出现问题kernel/drivers/built-in.o
fROM /home/sda7/MTK6582duallte/alps/kernel/../mediatek/kernel/drivers/eemcs/eemcs_ipc.h:20,
                 from /home/sda7/mtk6582duallte/alps/kernel/mediatek/kernel/drivers/conn_soc/common/linux/pri/../../linux/include/wmt_idc.h:5,
                 from /home/sda7/mtk6582duallte/alps/kernel/mediatek/kernel/drivers/conn_soc/common/linux/pri/../../core/include/wmt_lib.h:18,
                 from /home/sda7/mtk6582duallte/alps/kernel/mediatek/kernel/drivers/conn_soc/common/linux/pri/wmt_exp.c:

============================
mediatek/platform/MT6582/kernel/drivers/built-in.o: In function `DSI_StartTransfer':
/home/build_master/source/T9200L_AUX/Driver_U519_T9200L_AUX/alps/kernel/mediatek/platform/mt6582/kernel/drivers/video/dsi_drv.c:1028: undefined reference to `mutex_lock'
mediatek/platform/mt6582/kernel/drivers/built-in.o: In function `LCD_StartTransfer':
/home/build_master/source/T9200L_AUX/Driver_U519_T9200L_AUX/alps/kernel/mediatek/platform/mt6582/kernel/drivers/video/lcd_drv.c:1432: undefined reference to `mutex_lock'
mediatek/platform/mt6582/kernel/drivers/built-in.o: In function `disphal_panel_enable':
/home/build_master/source/T9200L_AUX/Driver_U519_T9200L_AUX/alps/kernel/mediatek/platform/mt6582/kernel/drivers/video/disp_hal.c:394: undefined reference to `mutex_lock'
/home/build_master/source/T9200L_AUX/Driver_U519_T9200L_AUX/alps/kernel/mediatek/platform/mt6582/kernel/drivers/video/disp_hal.c:425: undefined reference to `mutex_lock'
mediatek/platform/mt6582/kernel/drivers/built-in.o: In function `disphal_update_screen':
/home/build_master/source/T9200L_AUX/Driver_U519_T9200L_AUX/alps/kernel/mediatek/platform/mt6582/kernel/drivers/video/disp_hal.c:436: undefined reference to `mutex_lock'
mediatek/platform/mt6582/kernel/drivers/built-in.o:/home/build_master/source/T9200L_AUX/Driver_U519_T9200L_AUX/alps/kernel/mediatek/platform/mt6582/kernel/drivers/video/disp_hal.c:449: more undefined references to `mutex_lock' follow
make[4]: *** [.tmp_vmlinux1] Error 1

你这怎么两个路径啊? 两套代码?

从头到尾，都是 mutex_lock 这个没定义

是一份代码 但是路径只有一个，编译过程中，突然 报了另一个路径的错误，可能代码之前在其他机子编译过，所以报错了 这个让我感觉很奇怪

你确认你的编译环境没有问题

请先检查编译环境。

是不是 目录太长了

编译环境的可能性比较大