summaryrefslogtreecommitdiffstats
blob: 778db3c74ea734769f35ef80c30b88aacb669602 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
"""SCons.Tool.gcc

Tool-specific initialization for MinGW (http://www.mingw.org/)

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__
#
# 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__ = "__FILE__ __REVISION__ __DATE__ __DEVELOPER__"

import os
import os.path

import SCons.Action
import SCons.Builder
import SCons.Defaults
import SCons.Tool
import SCons.Util

# This is what we search for to find mingw:
key_program = 'mingw32-gcc'

def find(env):
    # First search in the SCons path
    path=env.WhereIs(key_program)
    if (path):
        return path
    # then the OS path:
    path=SCons.Util.WhereIs(key_program)
    if (path):
        return path

    # If that doesn't work try default location for mingw
    save_path=env['ENV']['PATH']
    env.AppendENVPath('PATH',r'c:\MinGW\bin')
    path =env.WhereIs(key_program)
    if not path:
        env['ENV']['PATH']=save_path
    return path

def shlib_generator(target, source, env, for_signature):
    cmd = SCons.Util.CLVar(['$SHLINK', '$SHLINKFLAGS']) 

    dll = env.FindIxes(target, 'SHLIBPREFIX', 'SHLIBSUFFIX')
    if dll: cmd.extend(['-o', dll])

    cmd.extend(['$SOURCES', '$_LIBDIRFLAGS', '$_LIBFLAGS'])

    implib = env.FindIxes(target, 'LIBPREFIX', 'LIBSUFFIX')
    if implib: cmd.append('-Wl,--out-implib,'+implib.get_string(for_signature))

    def_target = env.FindIxes(target, 'WINDOWSDEFPREFIX', 'WINDOWSDEFSUFFIX')
    insert_def = env.subst("$WINDOWS_INSERT_DEF")
    if not insert_def in ['', '0', 0] and def_target: \
        cmd.append('-Wl,--output-def,'+def_target.get_string(for_signature))

    return [cmd]

def shlib_emitter(target, source, env):
    dll = env.FindIxes(target, 'SHLIBPREFIX', 'SHLIBSUFFIX')
    no_import_lib = env.get('no_import_lib', 0)

    if not dll:
        raise SCons.Errors.UserError("A shared library should have exactly one target with the suffix: %s Target(s) are:%s" %  \
            (env.subst("$SHLIBSUFFIX"), ",".join([str(t) for t in target])))
    
    if not no_import_lib and \
       not env.FindIxes(target, 'LIBPREFIX', 'LIBSUFFIX'):

        # Create list of target libraries as strings
        targetStrings=env.ReplaceIxes(dll,  
                                      'SHLIBPREFIX', 'SHLIBSUFFIX',
                                      'LIBPREFIX', 'LIBSUFFIX')
        
        # Now add file nodes to target list
        target.append(env.fs.File(targetStrings))

    # Append a def file target if there isn't already a def file target
    # or a def file source or the user has explicitly asked for the target
    # to be emitted.
    def_source = env.FindIxes(source, 'WINDOWSDEFPREFIX', 'WINDOWSDEFSUFFIX')
    def_target = env.FindIxes(target, 'WINDOWSDEFPREFIX', 'WINDOWSDEFSUFFIX')
    skip_def_insert = env.subst("$WINDOWS_INSERT_DEF") in ['', '0', 0]
    if not def_source and not def_target and not skip_def_insert:
        # Create list of target libraries and def files as strings
        targetStrings=env.ReplaceIxes(dll,  
                                      'SHLIBPREFIX', 'SHLIBSUFFIX',
                                      'WINDOWSDEFPREFIX', 'WINDOWSDEFSUFFIX')
        
        # Now add file nodes to target list
        target.append(env.fs.File(targetStrings))

    return (target, source)
                         

shlib_action = SCons.Action.Action(shlib_generator, generator=1)

res_action = SCons.Action.Action('$RCCOM', '$RCCOMSTR')

res_builder = SCons.Builder.Builder(action=res_action, suffix='.o',
                                    source_scanner=SCons.Tool.SourceFileScanner)
SCons.Tool.SourceFileScanner.add_scanner('.rc', SCons.Defaults.CScan)

def generate(env):
    mingw = find(env)
    if mingw:
        dir = os.path.dirname(mingw)
        env.PrependENVPath('PATH', dir )
        

    # Most of mingw is the same as gcc and friends...
    gnu_tools = ['gcc', 'g++', 'gnulink', 'ar', 'gas', 'gfortran', 'm4']
    for tool in gnu_tools:
        SCons.Tool.Tool(tool)(env)

    #... but a few things differ:
    env['CC'] = 'gcc'
    env['SHCCFLAGS'] = SCons.Util.CLVar('$CCFLAGS')
    env['CXX'] = 'g++'
    env['SHCXXFLAGS'] = SCons.Util.CLVar('$CXXFLAGS')
    env['SHLINKFLAGS'] = SCons.Util.CLVar('$LINKFLAGS -shared')
    env['SHLINKCOM']   = shlib_action
    env['LDMODULECOM'] = shlib_action
    env.Append(SHLIBEMITTER = [shlib_emitter])
    env.Append(LDMODULEEMITTER = [shlib_emitter])
    env['AS'] = 'as'

    env['WIN32DEFPREFIX']        = ''
    env['WIN32DEFSUFFIX']        = '.def'
    env['WINDOWSDEFPREFIX']      = '${WIN32DEFPREFIX}'
    env['WINDOWSDEFSUFFIX']      = '${WIN32DEFSUFFIX}'

    env['SHOBJSUFFIX'] = '.o'
    env['STATIC_AND_SHARED_OBJECTS_ARE_THE_SAME'] = 1

    env['RC'] = 'windres'
    env['RCFLAGS'] = SCons.Util.CLVar('')
    env['RCINCFLAGS'] = '$( ${_concat(RCINCPREFIX, CPPPATH, RCINCSUFFIX, __env__, RDirs, TARGET, SOURCE)} $)'
    env['RCINCPREFIX'] = '--include-dir '
    env['RCINCSUFFIX'] = ''
    env['RCCOM'] = '$RC $_CPPDEFFLAGS $RCINCFLAGS ${RCINCPREFIX} ${SOURCE.dir} $RCFLAGS -i $SOURCE -o $TARGET'
    env['BUILDERS']['RES'] = res_builder
    
    # Some setting from the platform also have to be overridden:
    env['OBJSUFFIX'] = '.o'
    env['LIBPREFIX'] = 'lib'
    env['LIBSUFFIX'] = '.a'
    env['PROGSUFFIX'] = '.exe'

def exists(env):
    return find(env)

# Local Variables:
# tab-width:4
# indent-tabs-mode:nil
# End:
# vim: set expandtab tabstop=4 shiftwidth=4: