gcc flags are unknown when moving to icc

[Erez_Zilber]

Hi,

I'm evaluating icc and get many wanrings during compilation:

icc: command line warning #10006: ignoring unknown option '-Wfloat-equal'
icc: command line warning #10006: ignoring unknown option '-Wcast-align'
icc: command line warning #10006: ignoring unknown option '-Wnested-externs'
icc: command line warning #10006: ignoring unknown option '-Wvolatile-register-var'
icc: command line warning #10006: ignoring unknown option '-Wpointer-sign'
icc: command line warning #10006: ignoring unknown option '-Wmissing-format-attribute'
icc: command line warning #10006: ignoring unknown option '-Wno-missing-field-initializers'

I thought that all gcc flags should work also with icc. Can anyone help with that?

Thanks,
Erez

[Georg_Z_Intel]

Hello Erez,

those are features for additional checking. With the next major version (13.0) of the compiler, released later this year, we're going to add support for (most of) such options. Following updates will add more.

For all the options you provided we either have implemented support (for future 13.0) or there are already tickets for future action, which I just verified.

Edit: The release notes of the future compiler versions will document newly added features.

Best regards,

Georg Zitzlsberger

[Erez_Zilber]

Thanks! When in v13 expected?

[Georg_Z_Intel]

Hello Erez,

it's expected to have a new major version coming around mid of September this year.

Best regards,

Georg Zitzlsberger

[Erez_Zilber]

Thanks!

Erez