[Scons-users] FW: Issue: using Replace to replace ENV PATH

[Bill Deegan]

Tony,

Instead of just showing us what you've tried, perhaps also explain what you
want to do?
It looks like you want to build using cygwin tools running from windows
shell with windows python?
Is that correct?

-Bill

On Mon, Jan 28, 2019 at 10:59 PM Tony Peter Long <tony.peterlong at nxp.com>
wrote:

> Sorry. Let me try this again.
>
>
>
> From: Tony Peter Long
> Sent: Monday, January 28, 2019 14:02
> To: 'scons-users at scons.org' <scons-users at scons.org>
> Subject: Issue: using Replace to replace ENV PATH
>
>
>
> Hello all.
>
>
>
> I am a new SCons user as well as new to Open Source development in
> general, so please forgive me if I’m missing some etiquette with this mail,
> but I have a minor issue when using the Replace method to replace ENV PATH
> as follows:
>
>
>
> PATH = {'PATH' : ['C:/cygwin/bin']}
>
> *env = Environment()*
>
> *env.Replace(ENV = PATH)*
>
> env.Replace(CXX = 'g++')
>
> env.Replace(CC = 'gcc')
>
> print "PATH = ", env['ENV']
>
> print "CXX = ", env['CXX']
>
> print "CC = ", env['CC']
>
> env.Program('helloworld.cxx')
>
> gives:
>
> scons: warning: No version of Visual Studio compiler found - C/C++
> compilers most likely not set correctly
>
> File "D:\tony\SConstruct", line 2, in <module>
>
> PATH =  {'PATH': ['C:/cygwin/bin']}
>
> CXX =  g++
>
> CC =  gcc
>
>
>
> scons: warning: No version of Visual Studio compiler found - C/C++
> compilers most likely not set correctly
>
> File "C:\Python27\Scripts\scons.py", line 204, in <module>
>
> g++ /Fohelloworld.obj /c helloworld.cxx /TP /nologo
>
> g++: error: /Fohelloworld.obj: No such file or directory
>
> g++: error: /c: No such file or directory
>
> g++: error: /TP: No such file or directory
>
> g++: error: /nologo: No such file or directory
>
> scons: *** [helloworld.obj] Error 1
>
>
>
> Whereas:
>
> PATH = {'PATH' : ['C:/cygwin/bin']}
>
> *env = Environment(ENV = PATH)*
>
> *# env.Replace()*
>
> env.Replace(CXX = 'g++')
>
> env.Replace(CC = 'gcc')
>
> print "PATH = ", env['ENV']
>
> print "CXX = ", env['CXX']
>
> print "CC = ", env['CC']
>
> env.Program('helloworld.cxx')
>
> gives:
>
> scons: Reading SConscript files ...
>
> PATH =  {'PATH': ['C:/cygwin/bin']}
>
> CXX =  g++
>
> CC =  gcc
>
> scons: done reading SConscript files.
>
> scons: Building targets ...
>
>
>
> scons: warning: No version of Visual Studio compiler found - C/C++
> compilers most likely not set correctly
>
> File "C:\Python27\Scripts\scons.py", line 204, in <module>
>
> g++ -o helloworld.o -c helloworld.cxx
>
> g++ -o helloworld.exe helloworld.o
>
> scons: done building targets.
>
>
>
> I’m not particularly tied to the first implementation, so using the second
> method suits me just fine. I was just wondering if this is intended, and if
> so, why?
>
>
>
> Regards,
>
> Tony Long.
>
>
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