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如何抑制所有警告被视为格式截断错误

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如何抑制所有警告被视为格式截断错误

我正在尝试使用 gcc 8.3.0 构建我的源代码

root@eqx-sjc-engine2-staging:/usr/local/src# gcc --version
gcc (Debian 8.3.0-2) 8.3.0
Copyright (C) 2018 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

root@eqx-sjc-engine2-staging:/usr/local/src#

我收到以下错误

libs/esl/fs_cli.c:1679:43: error: '%s' directive output may be truncated writing up to 1023 bytes into a region of size 1020 [-Werror=format-truncation=]
   snprintf(cmd_str, sizeof(cmd_str), "api %s\nconsole_execute: true\n\n", argv_command);    
libs/esl/fs_cli.c:1679:3: note: 'snprintf' output between 29 and 1052 bytes into a destination of size 1024
       snprintf(cmd_str, sizeof(cmd_str), "api %s\nconsole_execute: true\n\n", argv_command);
       ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    cc1: all warnings being treated as errors
    make[2]: *** [Makefile:2693: fs_cli-fs_cli.o] Error 1
    make[2]: Leaving directory '/usr/local/src'
    make[1]: *** [Makefile:3395: all-recursive] Error 1
    make[1]: Leaving directory '/usr/local/src'
    make: *** [Makefile:1576: all] Error 2

我尝试运行如下所示的 make

make -Wno-error=format-truncation

我仍然看到同样的问题。

我的Linux版本是

root@eqx-sjc-engine2-staging:~# cat /etc/os-release 
PRETTY_NAME="Debian GNU/Linux buster/sid"
NAME="Debian GNU/Linux"
ID=debian
HOME_URL="https://www.debian.org/"
SUPPORT_URL="https://www.debian.org/support"
BUG_REPORT_URL="https://bugs.debian.org/"

如何修复它？

答案1

根据 makefile，您可能需要类似以下内容：

make CFLAGS="-Wno-error=format-truncation"

默认的 Makefile 规则和大多数编写良好的 Makefile 应该查看CFLAGS所使用的 C 编译器的选项参数。同样，您可以用于为 C++ 编译器和链接器CXXFLAGS 提供选项。LDFLAGS

答案2

./configure --enable-fatal-warnings=no

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