init

scons-local-3.0.0/SCons/Tool/gnulink.py

@@ -0,0 +1,80 @@
+"""SCons.Tool.gnulink
+
+Tool-specific initialization for the gnu linker.
+
+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 (c) 2001 - 2017 The SCons Foundation
+#
+# Permission is hereby granted, free of charge, to any person obtaining
+# a copy of this software and associated documentation files (the
+# "Software"), to deal in the Software without restriction, including
+# without limitation the rights to use, copy, modify, merge, publish,
+# distribute, sublicense, and/or sell copies of the Software, and to
+# permit persons to whom the Software is furnished to do so, subject to
+# the following conditions:
+#
+# The above copyright notice and this permission notice shall be included
+# in all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
+# KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
+# WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+#
+
+__revision__ = "src/engine/SCons/Tool/gnulink.py rel_3.0.0:4395:8972f6a2f699 2017/09/18 12:59:24 bdbaddog"
+
+import SCons.Util
+import SCons.Tool
+import os
+import sys
+import re
+
+from . import link
+
+
+def generate(env):
+    """Add Builders and construction variables for gnulink to an Environment."""
+    link.generate(env)
+
+    if env['PLATFORM'] == 'hpux':
+        env['SHLINKFLAGS'] = SCons.Util.CLVar('$LINKFLAGS -shared -fPIC')
+
+    # __RPATH is set to $_RPATH in the platform specification if that
+    # platform supports it.
+    env['RPATHPREFIX'] = '-Wl,-rpath='
+    env['RPATHSUFFIX'] = ''
+    env['_RPATH'] = '${_concat(RPATHPREFIX, RPATH, RPATHSUFFIX, __env__)}'
+
+    # OpenBSD doesn't usually use SONAME for libraries
+    use_soname = not sys.platform.startswith('openbsd')
+    link._setup_versioned_lib_variables(env, tool = 'gnulink', use_soname = use_soname)
+    env['LINKCALLBACKS'] = link._versioned_lib_callbacks()
+
+    # For backward-compatibility with older SCons versions
+    env['SHLIBVERSIONFLAGS'] = SCons.Util.CLVar('-Wl,-Bsymbolic')
+    
+def exists(env):
+    # TODO: sync with link.smart_link() to choose a linker
+    linkers = { 'CXX': ['g++'], 'CC': ['gcc'] }
+    alltools = []
+    for langvar, linktools in linkers.items():
+        if langvar in env: # use CC over CXX when user specified CC but not CXX
+            return SCons.Tool.FindTool(linktools, env)
+        alltools.extend(linktools)
+    return SCons.Tool.FindTool(alltools, env) # find CXX or CC
+
+# Local Variables:
+# tab-width:4
+# indent-tabs-mode:nil
+# End:
+# vim: set expandtab tabstop=4 shiftwidth=4: