Merge remote-tracking branch 'ry/v0.6' into v0.6-merge
[platform/upstream/nodejs.git] / configure
1 #!/usr/bin/env python
2 import optparse
3 import os
4 import pprint
5 import re
6 import subprocess
7 import sys
8
9 CC = os.environ.get('CC', 'cc')
10
11 root_dir = os.path.dirname(__file__)
12 sys.path.insert(0, os.path.join(root_dir, 'deps', 'v8', 'tools'))
13
14 # parse our options
15 parser = optparse.OptionParser()
16
17 parser.add_option("--debug",
18     action="store_true",
19     dest="debug",
20     help="Also build debug build")
21
22 parser.add_option("--prefix",
23     action="store",
24     dest="prefix",
25     help="Select the install prefix (defaults to /usr/local)")
26
27 parser.add_option("--without-npm",
28     action="store_true",
29     dest="without_npm",
30     help="Don\'t install the bundled npm package manager")
31
32 parser.add_option("--without-waf",
33     action="store_true",
34     dest="without_waf",
35     help="Don\'t install node-waf")
36
37 parser.add_option("--without-ssl",
38     action="store_true",
39     dest="without_ssl",
40     help="Build without SSL")
41
42 parser.add_option("--without-snapshot",
43     action="store_true",
44     dest="without_snapshot",
45     help="Build without snapshotting V8 libraries. You might want to set"
46          " this for cross-compiling. [Default: False]")
47
48 parser.add_option("--shared-v8",
49     action="store_true",
50     dest="shared_v8",
51     help="Link to a shared V8 DLL instead of static linking")
52
53 parser.add_option("--shared-v8-includes",
54     action="store",
55     dest="shared_v8_includes",
56     help="Directory containing V8 header files")
57
58 parser.add_option("--shared-v8-libpath",
59     action="store",
60     dest="shared_v8_libpath",
61     help="A directory to search for the shared V8 DLL")
62
63 parser.add_option("--shared-v8-libname",
64     action="store",
65     dest="shared_v8_libname",
66     help="Alternative lib name to link to (default: 'v8')")
67
68 parser.add_option("--openssl-use-sys",
69     action="store_true",
70     dest="openssl_use_sys",
71     help="Use the system OpenSSL instead of one included with Node")
72
73 parser.add_option("--openssl-includes",
74     action="store",
75     dest="openssl_includes",
76     help="A directory to search for the OpenSSL includes")
77
78 parser.add_option("--openssl-libpath",
79     action="store",
80     dest="openssl_libpath",
81     help="A directory to search for the OpenSSL libraries")
82
83 parser.add_option("--no-ssl2",
84     action="store_true",
85     dest="no_ssl2",
86     help="Disable OpenSSL v2")
87
88 parser.add_option("--shared-zlib",
89     action="store_true",
90     dest="shared_zlib",
91     help="Link to a shared zlib DLL instead of static linking")
92
93 parser.add_option("--shared-zlib-includes",
94     action="store",
95     dest="shared_zlib_includes",
96     help="Directory containing zlib header files")
97
98 parser.add_option("--shared-zlib-libpath",
99     action="store",
100     dest="shared_zlib_libpath",
101     help="A directory to search for the shared zlib DLL")
102
103 parser.add_option("--shared-zlib-libname",
104     action="store",
105     dest="shared_zlib_libname",
106     help="Alternative lib name to link to (default: 'z')")
107
108 parser.add_option("--with-dtrace",
109     action="store_true",
110     dest="with_dtrace",
111     help="Build with DTrace (default is true on supported systems)")
112
113 parser.add_option("--without-dtrace",
114     action="store_true",
115     dest="without_dtrace",
116     help="Build without DTrace")
117
118 # CHECKME does this still work with recent releases of V8?
119 parser.add_option("--gdb",
120     action="store_true",
121     dest="gdb",
122     help="add gdb support")
123
124 parser.add_option("--dest-cpu",
125     action="store",
126     dest="dest_cpu",
127     help="CPU architecture to build for. Valid values are: arm, ia32, x64")
128
129 (options, args) = parser.parse_args()
130
131
132 def b(value):
133   """Returns the string 'true' if value is truthy, 'false' otherwise."""
134   if value:
135     return 'true'
136   else:
137     return 'false'
138
139
140 def pkg_config(pkg):
141   cmd = os.popen('pkg-config --libs %s' % pkg, 'r')
142   libs = cmd.readline().strip()
143   ret = cmd.close()
144   if (ret): return None
145
146   cmd = os.popen('pkg-config --cflags %s' % pkg, 'r')
147   cflags = cmd.readline().strip()
148   ret = cmd.close()
149   if (ret): return None
150
151   return (libs, cflags)
152
153
154 def host_arch_cc():
155   """Host architecture check using the CC command."""
156
157   try:
158     p = subprocess.Popen(CC.split() + ['-dM', '-E', '-'],
159                          stdin=subprocess.PIPE,
160                          stdout=subprocess.PIPE,
161                          stderr=subprocess.PIPE)
162   except OSError:
163     print '''Node.js configure error: No acceptable C compiler found!
164
165         Please make sure you have a C compiler installed on your system and/or
166         consider adjusting the CC environment variable if you installed
167         it in a non-standard prefix.
168         '''
169     sys.exit()
170
171   p.stdin.write('\n')
172   out = p.communicate()[0]
173
174   out = str(out).split('\n')
175
176   k = {}
177   for line in out:
178     import shlex
179     lst = shlex.split(line)
180     if len(lst) > 2:
181       key = lst[1]
182       val = lst[2]
183       k[key] = val
184
185   matchup = {
186     '__x86_64__'  : 'x64',
187     '__i386__'    : 'ia32',
188     '__arm__'     : 'arm',
189   }
190
191   rtn = 'ia32' # default
192
193   for i in matchup:
194     if i in k and k[i] != '0':
195       rtn = matchup[i]
196       break
197
198   return rtn
199
200
201 def host_arch_win():
202   """Host architecture check using environ vars (better way to do this?)"""
203
204   arch = os.environ.get('PROCESSOR_ARCHITECTURE', 'x86')
205
206   matchup = {
207     'AMD64'  : 'x64',
208     'x86'    : 'ia32',
209     'arm'    : 'arm',
210   }
211
212   return matchup.get(arch, 'ia32')
213
214
215 def host_arch():
216   """Host architecture. One of arm, ia32 or x64."""
217   if os.name == 'nt':
218     arch = host_arch_win()
219   else:
220     arch = host_arch_cc()
221   return arch
222
223
224 def target_arch():
225   return host_arch()
226
227
228 def gcc_version():
229   try:
230     proc = subprocess.Popen([CC, '-v'], stderr=subprocess.PIPE)
231   except OSError:
232     return None
233   # TODO parse clang output
234   version = proc.communicate()[1].split('\n')[-2]
235   match = re.match('gcc version (\d+)\.(\d+)\.(\d+)', version)
236   if not match: return None
237   return ['LLVM' in version] + map(int, match.groups())
238
239
240 def configure_node(o):
241   # TODO add gdb
242   o['variables']['node_prefix'] = options.prefix if options.prefix else ''
243   o['variables']['node_install_npm'] = b(not options.without_npm)
244   o['variables']['node_install_waf'] = b(not options.without_waf)
245   o['variables']['host_arch'] = host_arch()
246   o['variables']['target_arch'] = options.dest_cpu or target_arch()
247   o['default_configuration'] = 'Debug' if options.debug else 'Release'
248
249   # turn off strict aliasing if gcc < 4.6.0 unless it's llvm-gcc
250   # see http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45883
251   # see http://code.google.com/p/v8/issues/detail?id=884
252   o['variables']['strict_aliasing'] = b(
253     'clang' in CC or gcc_version() >= [False, 4, 6, 0])
254
255   # clang has always supported -fvisibility=hidden, right?
256   if 'clang' not in CC and gcc_version() < [False, 4, 0, 0]:
257     o['variables']['visibility'] = ''
258
259   # By default, enable DTrace on SunOS systems. Don't allow it on other
260   # systems, since it won't work.  (The MacOS build process is different than
261   # SunOS, and we haven't implemented it.)
262   if sys.platform.startswith('sunos'):
263     o['variables']['node_use_dtrace'] = b(not options.without_dtrace);
264   elif b(options.with_dtrace) == 'true':
265     raise Exception('DTrace is currently only supported on SunOS systems.')
266   else:
267     o['variables']['node_use_dtrace'] = 'false'
268
269
270 def configure_libz(o):
271   o['variables']['node_shared_zlib'] = b(options.shared_zlib)
272
273   # assume shared_zlib if one of these is set?
274   if options.shared_zlib_libpath:
275     o['libraries'] += ['-L%s' % options.shared_zlib_libpath]
276   if options.shared_zlib_libname:
277     o['libraries'] += ['-l%s' % options.shared_zlib_libname]
278   elif options.shared_zlib:
279     o['libraries'] += ['-lz']
280   if options.shared_zlib_includes:
281     o['include_dirs'] += [options.shared_zlib_includes]
282
283
284 def configure_v8(o):
285   o['variables']['v8_use_snapshot'] = b(not options.without_snapshot)
286   o['variables']['node_shared_v8'] = b(options.shared_v8)
287
288   # assume shared_v8 if one of these is set?
289   if options.shared_v8_libpath:
290     o['libraries'] += ['-L%s' % options.shared_v8_libpath]
291   if options.shared_v8_libname:
292     o['libraries'] += ['-l%s' % options.shared_v8_libname]
293   elif options.shared_v8:
294     o['libraries'] += ['-lv8']
295   if options.shared_v8_includes:
296     o['include_dirs'] += [options.shared_v8_includes]
297     o['variables']['node_shared_v8_includes'] = options.shared_v8_includes
298
299
300 def configure_openssl(o):
301   o['variables']['node_use_openssl'] = b(not options.without_ssl)
302
303   if options.without_ssl:
304     return
305
306   if options.no_ssl2:
307     o['defines'] += ['OPENSSL_NO_SSL2=1']
308
309   if not options.openssl_use_sys:
310     o['variables']['node_use_system_openssl'] = b(False)
311   else:
312     out = pkg_config('openssl')
313     (libs, cflags) = out if out else ('', '')
314
315     if options.openssl_libpath:
316       o['libraries'] += ['-L%s' % options.openssl_libpath, '-lssl', '-lcrypto']
317     else:
318       o['libraries'] += libs.split()
319
320     if options.openssl_includes:
321       o['include_dirs'] += [options.openssl_includes]
322     else:
323       o['cflags'] += cflags.split()
324
325     o['variables']['node_use_system_openssl'] = b(
326       libs or cflags or options.openssl_libpath or options.openssl_includes)
327
328
329 output = {
330   'variables': {},
331   'include_dirs': [],
332   'libraries': [],
333   'defines': [],
334   'cflags': [],
335 }
336
337 configure_node(output)
338 configure_libz(output)
339 configure_v8(output)
340 configure_openssl(output)
341
342 # variables should be a root level element,
343 # move everything else to target_defaults
344 variables = output['variables']
345 del output['variables']
346 output = {
347   'variables': variables,
348   'target_defaults': output
349 }
350 pprint.pprint(output, indent=2)
351
352 def write(filename, data):
353   filename = os.path.join(root_dir, filename)
354   print "creating ", filename
355   f = open(filename, 'w+')
356   f.write(data)
357
358 write('config.gypi', "# Do not edit. Generated by the configure script.\n" +
359   pprint.pformat(output, indent=2) + "\n")
360
361 write('config.mk', "# Do not edit. Generated by the configure script.\n" +
362   ("BUILDTYPE=%s\n" % ('Debug' if options.debug else 'Release')))
363
364 if os.name == 'nt':
365   subprocess.call(['python', 'tools/gyp_node', '-f', 'msvs',
366                                                '-G', 'msvs_version=2010'])
367 else:
368   subprocess.call(['tools/gyp_node', '-f', 'make'])