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Linux编译LVGL仿真器出错问题解决

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    目录

  • 一、错误现象
  • 二、错误分析
  • 三、错误解决


    一、错误现象

    我在虚拟机下使用 LVGL 仿真器,编译仿真器源代码时发生报错
    

cc: error: unrecognized command line option ‘-Wshift-negative-value'
cc: error: unrecognized command line option ‘-Wshift-negative-value'
cc: error: unrecognized command line option ‘-Wshift-negative-value'
Building project file: lvgl/examples/widgets/chart/lv_example_chart_6.c
Makefile:45: recipe for target 'build/obj/lvgl/examples/widgets/list/lv_example_list_1.o' failed
make: *** [build/obj/lvgl/examples/widgets/list/lv_example_list_1.o] Error 1
make: *** 正在等待未完成的任务....
Makefile:45: recipe for target 'build/obj/lvgl/examples/widgets/spinner/lv_example_spinner_1.o' failed
make: *** [build/obj/lvgl/examples/widgets/spinner/lv_example_spinner_1.o] Error 1
Makefile:45: recipe for target 'build/obj/lvgl/examples/widgets/led/lv_example_led_1.o' failed
make: *** [build/obj/lvgl/examples/widgets/led/lv_example_led_1.o] Error 1
cc: error: unrecognized command line option ‘-Wshift-negative-value'
Makefile:45: recipe for target 'build/obj/lvgl/examples/widgets/textarea/lv_example_textarea_3.o' failed
make: *** [build/obj/lvgl/examples/widgets/textarea/lv_example_textarea_3.o] Error 1
cc: error: unrecognized command line option ‘-Wshift-negative-value'
Makefile:45: recipe for target 'build/obj/lvgl/examples/widgets/textarea/lv_example_textarea_2.o' failed
make: *** [build/obj/lvgl/examples/widgets/textarea/lv_example_textarea_2.o] Error 1
cc: error: unrecognized command line option ‘-Wshift-negative-value'
cc: error: unrecognized command line option ‘-Wshift-negative-value'
Makefile:45: recipe for target 'build/obj/lvgl/examples/widgets/textarea/lv_example_textarea_1.o' failed
make: *** [build/obj/lvgl/examples/widgets/textarea/lv_example_textarea_1.o] Error 1
Makefile:45: recipe for target 'build/obj/lvgl/examples/widgets/checkbox/lv_example_checkbox_1.o' failed
make: *** [build/obj/lvgl/examples/widgets/checkbox/lv_example_checkbox_1.o] Error 1
cc: error: unrecognized command line option ‘-Wshift-negative-value'
Makefile:45: recipe for target 'build/obj/lvgl/examples/widgets/chart/lv_example_chart_6.o' failed
make: *** [build/obj/lvgl/examples/widgets/chart/lv_example_chart_6.o] Error 1


    

编译无法进行


    二、错误分析

    根据提示分析错误,其中 cc: error 提示报错,翻到 Makefile 一看属于 gcc 编译器
    
    unrecognized command line option ‘-Wshift-negative-value’ 提示无法识别指令,所以分析应该是 GCC 版本的原因,可能我的版本不支持这个指令,解决的方式就是换版本,或者删掉这个指令看能不能正常运行
    三、错误解决

    这里我先试试删除指令再编译,先用 grep 找到指令在文件的哪一行
    

grep -n "\-Wshift\-negative\-value" Makefile


    
    编辑文件,删除对应指令
    

vim make file


    
    保存后程序编译
    
    编译成功,执行 demo,可以正常执行:
    
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