Ubuntu – How to disable -Werror=date-time/macro “__DATE__” might prevent reproducible builds


I am trying to compile a driver for a Netis WF2190 adapter.
Yes, I just downloaded the latest from them.

How can I disable the -Werror=date-time in the build? I can't find it anywhere in the build script so I figure it must be some global default setting. Clearly the code is just trying to embed the build date/time into the output, so there should be no problem with disabling this warning.

Here are some of the warnings I'm getting that are being treated as errors:

/home/andy/RTL8812AU_linux_v4.3.8_12175.20140902/driver/rtl8812AU_linux_v4.3.8_12175.20140902/core/rtw_debug.c:66:1: error: macro "__DATE__" might prevent reproducible builds [-Werror=date-time]
/home/andy/RTL8812AU_linux_v4.3.8_12175.20140902/driver/rtl8812AU_linux_v4.3.8_12175.20140902/core/rtw_debug.c:66:1: error: macro "__TIME__" might prevent reproducible builds [-Werror=date-time]
cc1: some warnings being treated as errors

Best Answer

  • The date-time warning is new in gcc 4.9 I think - it is possibly turned on implicitly by -Wall (and turned into an error implicitly by -Werror).

    You could try turning it off explicitly using the -Wno- form i.e. by adding


    to the CFLAGS.

  • Related Question