Home/ Questions/Q 1052951
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-05-16T17:10:35+00:00

for an autotools-based C project, I’d like to get some more warnings from the

  • 0

for an autotools-based C project, I’d like to get some more warnings from the compiler (e.g. at least -Wall in CFLAGS). What is the prefered way to enable compiler flags without breaking anything? Is there a m4 macro that tests if a given compiler flag is understood by the compiler?
With such a macro I could do

TEST_AND_USE(-Wall -Wextra <other flags>)

Thanks

Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team

    Widely used is the attributes.m4 CC_CHECK_CFLAG_APPEND macro from the xine project. Although, you often find variants (since it’s quite simple) written directly in configure.ac

    • 0