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Linux编译LVGL仿真器出错问题解决

程序员文章站 2022-03-01 19:44:51
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...

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

Linux编译LVGL仿真器出错问题解决

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

Linux编译LVGL仿真器出错问题解决

编辑文件,删除对应指令

vim make file

Linux编译LVGL仿真器出错问题解决

保存后程序编译

Linux编译LVGL仿真器出错问题解决

编译成功,执行 demo,可以正常执行:

Linux编译LVGL仿真器出错问题解决

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