[PATCH 4/4] sb/pkg-config: Add --cflags-only-I and --cflags-only-other option

[Joel Sherrill]

Do these  options need some help/explanation?

--joel

On Sat, Apr 22, 2023 at 12:23 AM <chrisj at rtems.org> wrote:

> From: Chris Johns <chrisj at rtems.org>
>
> ---
>  source-builder/pkg-config | 36 ++++++++++++++++++++++++++++++++++++
>  1 file changed, 36 insertions(+)
>
> diff --git a/source-builder/pkg-config b/source-builder/pkg-config
> index 10db546..8d0a174 100755
> --- a/source-builder/pkg-config
> +++ b/source-builder/pkg-config
> @@ -86,6 +86,19 @@ def log(s, lf = True):
>                  sys.stdout.flush()
>              print(s, end = '', file = out)
>
> +def cflags_filter(cflags, prefixes, include=True):
> +    cflags = cflags.split(' ')
> +    f_cflags = []
> +    for f in cflags:
> +        for p in prefixes:
> +            if f.startswith(p):
> +                f_cflags += [f]
> +    if not include:
> +        not_f_cflags = [f for f in cflags if f not in f_cflags]
> +        f_cflags = not_f_cflags
> +    return ' '.join(f_cflags)
> +
> +
>  def run(argv):
>
>      class version_action(argparse.Action):
> @@ -110,6 +123,7 @@ def run(argv):
>                        help = 'Make error messages short.')
>      opts.add_argument('--silence-errors', dest = 'silence_errors', action
> = 'store_true',
>                        default = False,
> +
>                        help = 'Do not print any errors.')
>      opts.add_argument('--errors-to-stdout', dest = 'errors_to_stdout',
> action = 'store_true',
>                        default = False,
> @@ -118,6 +132,14 @@ def run(argv):
>                        default = False,
>                        help = 'This prints pre-processor and compile flags
> required to' \
>                               ' compile the package(s)')
> +    opts.add_argument('--cflags-only-I', dest = 'cflags_only_i', action =
> 'store_true',
> +                      default = False,
> +                      help = 'This prints the -I part of "--cflags". That
> is, it defines the header' \
> +                             'search path but doesn\'t specify anything
> else.')
> +    opts.add_argument('--cflags-only-other', dest = 'cflags_only_other',
> action = 'store_true',
> +                      default = False,
> +                      help = 'Return all compiler flags, other than the
> include path flags, ' \
> +                             'required to compile against the package.')
>      opts.add_argument('--libs', dest = 'libs', action = 'store_true',
>                        default = False,
>                        help = 'This option is identical to "--cflags",
> only it prints the' \
> @@ -193,6 +215,20 @@ def run(argv):
>                      log('cflags: %s' % (flags['cflags']))
>                  else:
>                      log('cflags: empty')
> +            if args.cflags_only_i:
> +                cflags = cflags_filter(flags['cflags'], ['-I',
> '-system'], True)
> +                if len(cflags):
> +                    print(cflags)
> +                    log('cflags: %s' % (flags['cflags']))
> +                else:
> +                    log('cflags: empty')
> +            if args.cflags_only_other:
> +                cflags = cflags_filter(flags['cflags'], ['-I',
> '-system'], False)
> +                if len(cflags):
> +                    print(cflags)
> +                    log('cflags: %s' % (flags['cflags']))
> +                else:
> +                    log('cflags: empty')
>              if args.libs:
>                  if len(flags['libs']):
>                      print(flags['libs'])
> --
> 2.37.1
>
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