"""SCons.Tool.hpc++

Tool-specific initialization for c++ on HP/UX.

There normally shouldn't be any need to import this module directly.
It will usually be imported through the generic SCons.Tool.Tool()
selection method.

"""

#
# __COPYRIGHT__
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# The above copyright notice and this permission notice shall be included
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__revision__ = "__FILE__ __REVISION__ __DATE__ __DEVELOPER__"

import os.path

import SCons.Util

import SCons.Tool.cxx
cplusplus = SCons.Tool.cxx
#cplusplus = __import__('cxx', globals(), locals(), [])


acc = None

# search for the acc compiler and linker front end

try:
    dirs = os.listdir('/opt')
except OSError:
    # Not being able to read the directory because it doesn't exist
    # (IOError) or isn't readable (OSError) is okay.
    dirs = []

for dir in dirs:
    cc = '/opt/' + dir + '/bin/aCC'
    if os.path.exists(cc):
        acc = cc
        break

        
def generate(env) -> None:
    """Add Builders and construction variables for g++ to an Environment."""
    cplusplus.generate(env)

    if acc:
        env['CXX']        = acc or 'aCC'
        env['SHCXXFLAGS'] = SCons.Util.CLVar('$CXXFLAGS +Z')
        # determine version of aCC
        with os.popen(acc + ' -V 2>&1') as p:
            line = p.readline().rstrip()
        if line.find('aCC: HP ANSI C++') == 0:
            env['CXXVERSION'] = line.split()[-1]

        if env['PLATFORM'] == 'cygwin':
            env['SHCXXFLAGS'] = SCons.Util.CLVar('$CXXFLAGS')
        else:
            env['SHCXXFLAGS'] = SCons.Util.CLVar('$CXXFLAGS +Z')

def exists(env):
    return acc

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