help in simplification of code [string manipulation]

[John]

How could I simplify the code to get libs out of LDFLAGS
or vice versa automatically in the following python/scons code?

if sys.platform[:5] == 'linux':
env.Append (CPPFLAGS = '-D__LINUX')
env.Append (LDFLAGS = '-lglut -lGLU -lGL -lm')
env.Append(CPPP ATH=['include', 'include/trackball'])
libs = ['glut',
'GLU',
'GL',
'm',]


Thanks,
--j

[Kent Johnson]

Re: help in simplification of code [string manipulation]

John wrote:[color=blue]
> How could I simplify the code to get libs out of LDFLAGS
> or vice versa automatically in the following python/scons code?
>
> if sys.platform[:5] == 'linux':
> env.Append (CPPFLAGS = '-D__LINUX')
> env.Append (LDFLAGS = '-lglut -lGLU -lGL -lm')
> env.Append(CPPP ATH=['include', 'include/trackball'])
> libs = ['glut',
> 'GLU',
> 'GL',
> 'm',][/color]
[color=blue][color=green][color=darkred]
>>> LDFLAGS = '-lglut -lGLU -lGL -lm'
>>> libs = [flag[2:] for flag in LDFLAGS.split()]
>>> libs[/color][/color][/color]
['glut', 'GLU', 'GL', 'm']

Kent

[Christophe]

Re: help in simplification of code [string manipulation]

John a écrit :[color=blue]
> How could I simplify the code to get libs out of LDFLAGS
> or vice versa automatically in the following python/scons code?
>
> if sys.platform[:5] == 'linux':
> env.Append (CPPFLAGS = '-D__LINUX')
> env.Append (LDFLAGS = '-lglut -lGLU -lGL -lm')
> env.Append(CPPP ATH=['include', 'include/trackball'])
> libs = ['glut',
> 'GLU',
> 'GL',
> 'm',]
>
>
> Thanks,
> --j
>[/color]

Why don't you use the LIBS var in the environment instead of the LDFLAGS
? And what use would be the libs var for you ?

if sys.platform[:5] == 'linux':
libs = ['glut',
'GLU',
'GL',
'm',]
env.Append (CPPFLAGS = '-D__LINUX')
env.Append (LIBS = Split(libs))
env.Append(CPPP ATH=['include', 'include/trackball'])

[John]

Re: help in simplification of code [string manipulation]


Thanks for your replies...
Solved my problem.
--j

Christophe wrote:[color=blue]
> John a écrit :[color=green]
> > How could I simplify the code to get libs out of LDFLAGS
> > or vice versa automatically in the following python/scons code?
> >
> > if sys.platform[:5] == 'linux':
> > env.Append (CPPFLAGS = '-D__LINUX')
> > env.Append (LDFLAGS = '-lglut -lGLU -lGL -lm')
> > env.Append(CPPP ATH=['include', 'include/trackball'])
> > libs = ['glut',
> > 'GLU',
> > 'GL',
> > 'm',]
> >
> >
> > Thanks,
> > --j
> >[/color]
>
> Why don't you use the LIBS var in the environment instead of the LDFLAGS
> ? And what use would be the libs var for you ?
>
> if sys.platform[:5] == 'linux':
> libs = ['glut',
> 'GLU',
> 'GL',
> 'm',]
> env.Append (CPPFLAGS = '-D__LINUX')
> env.Append (LIBS = Split(libs))
> env.Append(CPPP ATH=['include', 'include/trackball'])[/color]

[Christophe]

Re: help in simplification of code [string manipulation]

John a écrit :[color=blue]
> Thanks for your replies...
> Solved my problem.[/color]

Even so, I made a big mistake here. The Split function is of no use
because there is already a list of flags. Better do it like that :
libs = Split('glut GLU GL m')
env.Append (LIBS = libs)

BTW, Split is a scons function.
[color=blue]
> Christophe wrote:
>[color=green]
>>John a écrit :
>>[color=darkred]
>>>How could I simplify the code to get libs out of LDFLAGS
>>>or vice versa automatically in the following python/scons code?
>>>
>>>if sys.platform[:5] == 'linux':
>>> env.Append (CPPFLAGS = '-D__LINUX')
>>> env.Append (LDFLAGS = '-lglut -lGLU -lGL -lm')
>>> env.Append(CPPP ATH=['include', 'include/trackball'])
>>> libs = ['glut',
>>> 'GLU',
>>> 'GL',
>>> 'm',]
>>>
>>>
>>>Thanks,
>>>--j
>>>[/color]
>>
>>Why don't you use the LIBS var in the environment instead of the LDFLAGS
>>? And what use would be the libs var for you ?
>>
>>if sys.platform[:5] == 'linux':
>> libs = ['glut',
>> 'GLU',
>> 'GL',
>> 'm',]
>> env.Append (CPPFLAGS = '-D__LINUX')
>> env.Append (LIBS = Split(libs))
>> env.Append(CPPP ATH=['include', 'include/trackball'])[/color]
>
>[/color]

[John]

Re: help in simplification of code [string manipulation]


But ur previous solution worked on my machine...
although a friend tried it on his machine and the libraries
were not found even if they existed! (Even the -lm was not found)

Can you explain a bit why the previous solution worked?

Thanks for ur help,
--j