[Scons-users] TryRun() problem with python3 scons-3.0.1

[Dave Plater]

On 08/03/18 18:56, Bill Deegan wrote:
> Dave,
> 
> Can you run with --debug=stacktrace and share the stacktrace?
> 
> -Bill

Running with  --debug=stacktrace provides nothing more than when it's 
not present :
Checking for a working C-compiler TypeError : sequence item 0: expected 
str instance, bytes found

Thanks,
Dave

> 
> On Thu, Mar 8, 2018 at 5:59 AM, Dave Plater <dplater.list at gmail.com 
> <mailto:dplater.list at gmail.com>> wrote:
> 
>     Hi, I'm battling to find why these SConstruct sections fails with
>     "TypeError : sequence item 0: expected str instance, bytes found"
> 
>     def CompilerCheck( context ):
>          context.Message( "Checking for a working C-compiler " )
>          ret = context.TryRun( """
>     #include <stdio.h>
> 
>     int main() {
>          printf( "Hello World!" );
>          return 0;
>     }""", '.c' ).decode('utf-8')[0]
>          context.Result( ret )
> 
>     or
> 
>          if 'CFLAGS' in env:
>              oldcf = env['CFLAGS']
>          else:
>              oldcf = ""
>          env.Append(CFLAGS = '-std=c99')
>          if conf.CheckLibWithHeader( "m", "math.h", "c", "lrint(3.2);"
>     ).decode('utf-8'):
>              HAVE_LRINT = 1
>          else:
>              HAVE_LRINT = 0
>          if conf.CheckLibWithHeader( "m", "math.h", "c", "lrintf(3.2);"
>     ).decode('utf-8'):
>              HAVE_LRINTF = 1
>          else:
>              HAVE_LRINTF = 0
>          env['HAVE_LRINT'] = HAVE_LRINT;
>          env['HAVE_LRINTF'] = HAVE_LRINTF;
>          env.Replace(CFLAGS=oldcf)
> 
>     What am I doing wrong? I've tried suffixing .decode('utf-8') after
>     the TryRun statement as well.
> 
>     Thanks
>     Dave Plater
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> 
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