[linux]"warning: Clock skew detected"

本文介绍了解决make过程中出现的“Clockskew detected”警告的方法。该警告通常由系统时间和源文件创建时间之间的不一致引起。文章提供了两种解决方案:一是调整系统时间以匹配当前时间;二是更新源文件的时间戳以同步到系统时间。

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make: warning:    Clock skew detected.     Your build may be incomplete.

出现这个警告的原因可能是系统时间不正确(系统时间比源文件的创建时间小)。

解决方法有:

1、修改系统时间(使用date命令),将系统时间改为当前时间。

         如:

~# date
Mon Apr  1 08:25:38 CST 2002
~# date -s 3/19/2012
Mon Mar 19 00:00:00 CST 2012
~# date -s 13:52:0
Mon Mar 19 13:52:00 CST 2012

 

2、修改源文件时间(使用touch命令),将源文件时间刷新为当前的系统时间。

        如:

~# find -type f | xargs -n 5 touch

 

 

在WSL中编译C程序出现编译警告 root@DESKTOP-2QBDJV0:/mnt/d/work/openeuler_env/code/testUsbDongleRFID_pro# ./script/build.sh -- The C compiler identification is GNU 10.3.1 -- The CXX compiler identification is GNU 10.3.1 -- Detecting C compiler ABI info -- Detecting C compiler ABI info - done -- Check for working C compiler: /mnt/d/work/openeuler_env/oecore-x86_64/sysroots/x86_64-peesdk-linux/usr/bin/aarch64-powereuler-linux-gcc - skipped -- Detecting C compile features -- Detecting C compile features - done -- Detecting CXX compiler ABI info -- Detecting CXX compiler ABI info - done -- Check for working CXX compiler: /mnt/d/work/openeuler_env/oecore-x86_64/sysroots/x86_64-peesdk-linux/usr/bin/aarch64-powereuler-linux-g++ - skipped -- Detecting CXX compile features -- Detecting CXX compile features - done -- Configuring done -- Generating done -- Build files have been written to: /mnt/d/work/openeuler_env/code/testUsbDongleRFID_pro/build make: Warning: File 'Makefile' has modification time 0.31 s in the future make[1]: Warning: File 'CMakeFiles/Makefile2' has modification time 0.28 s in the future make[2]: Warning: File 'CMakeFiles/run_testUsbDongleRFID.dir/flags.make' has modification time 0.21 s in the future make[2]: warning: Clock skew detected. Your build may be incomplete. make[2]: Warning: File 'CMakeFiles/run_testUsbDongleRFID.dir/flags.make' has modification time 0.17 s in the future [ 50%] Building C object CMakeFiles/run_testUsbDongleRFID.dir/main.c.o /mnt/d/work/openeuler_env/code/testUsbDongleRFID_pro/main.c: In function 'main': /mnt/d/work/openeuler_env/code/testUsbDongleRFID_pro/main.c:121:5: warning: ignoring return value of 'write' declared with attribute 'warn_unused_result' [-Wunused-result] 121 | write(fd, command, strlen(command)); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ [100%] Linking C executable run_testUsbDongleRFID make[2]: warning: Clock skew detected. Your build may be incomplete. [100%] Built target run_testUsbDongleRFID make[1]: warning: Clock skew detected. Your build may be incomplete. make: warning: Clock skew detected. Your build may be incomplete.
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06-12
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