[Scons-users] src_suffix getings ignored

[Bill Deegan]

You'll need to include your sample SConstruct as well..

On Sun, May 8, 2022 at 1:27 AM daggs <daggs at gmx.com> wrote:

> Greetings,
>
> I have the following builder:
> import os
>
> template_suffix = ".temp"
>
> def convert_path(base, out, src):
>     return src.replace(base, out)
>
> def modify_target(target, source, env):
>     return convert_path(env['base'], env['out_dir'], str(source[0])),
> source
>
> def a_action(target, source, action):
>     return os.system("echo -" + action + " " + os.path.basename(source))
>
> def a_b_action(target, source, env):
>     return a_action(target, source, "a")
>
> def a_c_action(target, source, env):
>     return a_action(target, source, "b")
>
> def generate(env, **kwargs):
>     builders = {
>         'do_a_b' : env.Builder(action = env.Action(a_b_action), suffix =
> '.c',
>                                src_suffix = template_suffix, emitter =
> modify_target),
>         'do_a_c' : env.Builder(action = env.Action(a_c_action), suffix =
> '.h',
>                                src_suffix = template_suffix, emitter =
> modify_target)
>     }
>
>     env.Append(BUILDERS = builders)
>
> def exists(env):
>     return true
>
> when I add prints to modify_target, both target and source looks good.
> however, when I run it as part of a scons build flow, it fails with the
> following error:
> scons --tree=all --debug=explain -n -Q
> scons: *** While building
> `['/tmp/proj/output/objs/module_a/generated/dir1/file.o']' from
> `['generated/dir1/file.temp']': Don't know how to build from a source file
> with suffix `.temp'.  Expected a suffix in this list: ['.c', '.m', '.cpp',
> '.cc', '.cxx', '.c++', '.C++', '.mm', '.C', '.f', '.for', '.ftn', '.fpp',
> '.FPP', '.F', '.FOR', '.FTN', '.f77', '.F77', '.f90', '.F90', '.f95',
> '.F95', '.f03', '.F03', '.f08', '.F08', '.s', '.asm', '.ASM', '.spp',
> '.SPP', '.sx', '.S', '.d'].
>
> any ideas what I'm doing wrong?
>
> Thanks.
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>
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