build: allow linking against system libuv
[platform/upstream/nodejs.git] / configure
1 #!/usr/bin/env python
2 import optparse
3 import os
4 import pprint
5 import re
6 import shlex
7 import subprocess
8 import sys
9
10 CC = os.environ.get('CC', 'cc')
11
12 root_dir = os.path.dirname(__file__)
13 sys.path.insert(0, os.path.join(root_dir, 'deps', 'v8', 'tools'))
14
15 # parse our options
16 parser = optparse.OptionParser()
17
18 parser.add_option("--debug",
19     action="store_true",
20     dest="debug",
21     help="Also build debug build")
22
23 parser.add_option("--prefix",
24     action="store",
25     dest="prefix",
26     help="Select the install prefix (defaults to /usr/local)")
27
28 parser.add_option("--without-npm",
29     action="store_true",
30     dest="without_npm",
31     help="Don\'t install the bundled npm package manager")
32
33 parser.add_option("--without-ssl",
34     action="store_true",
35     dest="without_ssl",
36     help="Build without SSL")
37
38 parser.add_option("--without-snapshot",
39     action="store_true",
40     dest="without_snapshot",
41     help="Build without snapshotting V8 libraries. You might want to set"
42          " this for cross-compiling. [Default: False]")
43
44 parser.add_option("--shared-v8",
45     action="store_true",
46     dest="shared_v8",
47     help="Link to a shared V8 DLL instead of static linking")
48
49 parser.add_option("--shared-v8-includes",
50     action="store",
51     dest="shared_v8_includes",
52     help="Directory containing V8 header files")
53
54 parser.add_option("--shared-v8-libpath",
55     action="store",
56     dest="shared_v8_libpath",
57     help="A directory to search for the shared V8 DLL")
58
59 parser.add_option("--shared-v8-libname",
60     action="store",
61     dest="shared_v8_libname",
62     help="Alternative lib name to link to (default: 'v8')")
63
64 parser.add_option("--shared-openssl",
65     action="store_true",
66     dest="shared_openssl",
67     help="Link to a shared OpenSSl DLL instead of static linking")
68
69 parser.add_option("--shared-openssl-includes",
70     action="store",
71     dest="shared_openssl_includes",
72     help="Directory containing OpenSSL header files")
73
74 parser.add_option("--shared-openssl-libpath",
75     action="store",
76     dest="shared_openssl_libpath",
77     help="A directory to search for the shared OpenSSL DLLs")
78
79 parser.add_option("--shared-openssl-libname",
80     action="store",
81     dest="shared_openssl_libname",
82     help="Alternative lib name to link to (default: 'crypto,ssl')")
83
84 # deprecated
85 parser.add_option("--openssl-use-sys",
86     action="store_true",
87     dest="shared_openssl",
88     help=optparse.SUPPRESS_HELP)
89
90 # deprecated
91 parser.add_option("--openssl-includes",
92     action="store",
93     dest="shared_openssl_includes",
94     help=optparse.SUPPRESS_HELP)
95
96 # deprecated
97 parser.add_option("--openssl-libpath",
98     action="store",
99     dest="shared_openssl_libpath",
100     help=optparse.SUPPRESS_HELP)
101
102 # TODO document when we've decided on what the tracing API and its options will
103 # look like
104 parser.add_option("--systemtap-includes",
105     action="store",
106     dest="systemtap_includes",
107     help=optparse.SUPPRESS_HELP)
108
109 parser.add_option("--no-ssl2",
110     action="store_true",
111     dest="no_ssl2",
112     help="Disable OpenSSL v2")
113
114 parser.add_option("--shared-zlib",
115     action="store_true",
116     dest="shared_zlib",
117     help="Link to a shared zlib DLL instead of static linking")
118
119 parser.add_option("--shared-zlib-includes",
120     action="store",
121     dest="shared_zlib_includes",
122     help="Directory containing zlib header files")
123
124 parser.add_option("--shared-zlib-libpath",
125     action="store",
126     dest="shared_zlib_libpath",
127     help="A directory to search for the shared zlib DLL")
128
129 parser.add_option("--shared-zlib-libname",
130     action="store",
131     dest="shared_zlib_libname",
132     help="Alternative lib name to link to (default: 'z')")
133
134 parser.add_option("--shared-http-parser",
135     action="store_true",
136     dest="shared_http_parser",
137     help="Link to a shared http_parser DLL instead of static linking")
138
139 parser.add_option("--shared-http-parser-includes",
140     action="store",
141     dest="shared_http_parser_includes",
142     help="Directory containing http_parser header files")
143
144 parser.add_option("--shared-http-parser-libpath",
145     action="store",
146     dest="shared_http_parser_libpath",
147     help="A directory to search for the shared http_parser DLL")
148
149 parser.add_option("--shared-http-parser-libname",
150     action="store",
151     dest="shared_http_parser_libname",
152     help="Alternative lib name to link to (default: 'http_parser')")
153
154 parser.add_option("--shared-cares",
155     action="store_true",
156     dest="shared_cares",
157     help="Link to a shared cares DLL instead of static linking")
158
159 parser.add_option("--shared-cares-includes",
160     action="store",
161     dest="shared_cares_includes",
162     help="Directory containing cares header files")
163
164 parser.add_option("--shared-cares-libpath",
165     action="store",
166     dest="shared_cares_libpath",
167     help="A directory to search for the shared cares DLL")
168
169 parser.add_option("--shared-cares-libname",
170     action="store",
171     dest="shared_cares_libname",
172     help="Alternative lib name to link to (default: 'cares')")
173
174 parser.add_option("--shared-libuv",
175     action="store_true",
176     dest="shared_libuv",
177     help="Link to a shared libuv DLL instead of static linking")
178
179 parser.add_option("--shared-libuv-includes",
180     action="store",
181     dest="shared_libuv_includes",
182     help="Directory containing libuv header files")
183
184 parser.add_option("--shared-libuv-libpath",
185     action="store",
186     dest="shared_libuv_libpath",
187     help="A directory to search for the shared libuv DLL")
188
189 parser.add_option("--shared-libuv-libname",
190     action="store",
191     dest="shared_libuv_libname",
192     help="Alternative lib name to link to (default: 'uv')")
193
194 parser.add_option("--with-dtrace",
195     action="store_true",
196     dest="with_dtrace",
197     help="Build with DTrace (default is true on sunos)")
198
199 parser.add_option("--without-dtrace",
200     action="store_true",
201     dest="without_dtrace",
202     help="Build without DTrace")
203
204 parser.add_option("--with-etw",
205     action="store_true",
206     dest="with_etw",
207     help="Build with ETW (default is true on Windows)")
208
209 parser.add_option("--without-etw",
210     action="store_true",
211     dest="without_etw",
212     help="Build without ETW")
213
214 # CHECKME does this still work with recent releases of V8?
215 parser.add_option("--gdb",
216     action="store_true",
217     dest="gdb",
218     help="add gdb support")
219
220 parser.add_option("--dest-cpu",
221     action="store",
222     dest="dest_cpu",
223     help="CPU architecture to build for. Valid values are: arm, ia32, x64")
224
225 parser.add_option("--dest-os",
226     action="store",
227     dest="dest_os",
228     help="Operating system to build for. Valid values are: "
229          "win, mac, solaris, freebsd, linux")
230
231 parser.add_option("--no-ifaddrs",
232     action="store_true",
233     dest="no_ifaddrs",
234     help="Use on deprecated SunOS systems that do not support ifaddrs.h")
235
236 parser.add_option("--with-arm-float-abi",
237     action="store",
238     dest="arm_float_abi",
239     help="Specifies which floating-point ABI to use. Valid values are: "
240          "soft, softfp, hard")
241
242 parser.add_option("--ninja",
243     action="store_true",
244     dest="use_ninja",
245     help="Generate files for the ninja build system")
246
247 # Using --unsafe-optimizations voids your warranty.
248 parser.add_option("--unsafe-optimizations",
249     action="store_true",
250     dest="unsafe_optimizations",
251     help=optparse.SUPPRESS_HELP)
252
253 parser.add_option("--xcode",
254     action="store_true",
255     dest="use_xcode",
256     help="Generate build files for use with xcode")
257
258 (options, args) = parser.parse_args()
259
260
261 def b(value):
262   """Returns the string 'true' if value is truthy, 'false' otherwise."""
263   if value:
264     return 'true'
265   else:
266     return 'false'
267
268
269 def pkg_config(pkg):
270   cmd = os.popen('pkg-config --libs %s' % pkg, 'r')
271   libs = cmd.readline().strip()
272   ret = cmd.close()
273   if (ret): return None
274
275   cmd = os.popen('pkg-config --cflags %s' % pkg, 'r')
276   cflags = cmd.readline().strip()
277   ret = cmd.close()
278   if (ret): return None
279
280   return (libs, cflags)
281
282
283 def cc_macros():
284   """Checks predefined macros using the CC command."""
285
286   try:
287     p = subprocess.Popen(shlex.split(CC) + ['-dM', '-E', '-'],
288                          stdin=subprocess.PIPE,
289                          stdout=subprocess.PIPE,
290                          stderr=subprocess.PIPE)
291   except OSError:
292     print '''Node.js configure error: No acceptable C compiler found!
293
294         Please make sure you have a C compiler installed on your system and/or
295         consider adjusting the CC environment variable if you installed
296         it in a non-standard prefix.
297         '''
298     sys.exit()
299
300   p.stdin.write('\n')
301   out = p.communicate()[0]
302
303   out = str(out).split('\n')
304
305   k = {}
306   for line in out:
307     lst = shlex.split(line)
308     if len(lst) > 2:
309       key = lst[1]
310       val = lst[2]
311       k[key] = val
312   return k
313
314
315 def is_arch_armv7():
316   """Check for ARMv7 instructions"""
317   cc_macros_cache = cc_macros()
318   return ('__ARM_ARCH_7__' in cc_macros_cache or
319           '__ARM_ARCH_7A__' in cc_macros_cache or
320           '__ARM_ARCH_7R__' in cc_macros_cache or
321           '__ARM_ARCH_7M__' in cc_macros_cache)
322
323
324 def arm_hard_float_abi():
325   """Check for hardfloat or softfloat eabi on ARM"""
326   # GCC versions 4.6 and above define __ARM_PCS or __ARM_PCS_VFP to specify
327   # the Floating Point ABI used (PCS stands for Procedure Call Standard).
328   # We use these as well as a couple of other defines to statically determine
329   # what FP ABI used.
330   # GCC versions 4.4 and below don't support hard-fp.
331   # GCC versions 4.5 may support hard-fp without defining __ARM_PCS or
332   # __ARM_PCS_VFP.
333
334   if compiler_version() >= (4, 6, 0):
335     return '__ARM_PCS_VFP' in cc_macros()
336   elif compiler_version() < (4, 5, 0):
337     return False
338   elif '__ARM_PCS_VFP' in cc_macros():
339     return True
340   elif ('__ARM_PCS' in cc_macros() or
341         '__SOFTFP' in cc_macros() or
342         not '__VFP_FP__' in cc_macros()):
343     return False
344   else:
345     print '''Node.js configure error: Your version of GCC does not report
346       the Floating-Point ABI to compile for your hardware
347
348       Please manually specify which floating-point ABI to use with the
349       --with-arm-float-abi option.
350       '''
351     sys.exit()
352
353
354 def host_arch_cc():
355   """Host architecture check using the CC command."""
356
357   k = cc_macros()
358
359   matchup = {
360     '__x86_64__'  : 'x64',
361     '__i386__'    : 'ia32',
362     '__arm__'     : 'arm',
363   }
364
365   rtn = 'ia32' # default
366
367   for i in matchup:
368     if i in k and k[i] != '0':
369       rtn = matchup[i]
370       break
371
372   return rtn
373
374
375 def host_arch_win():
376   """Host architecture check using environ vars (better way to do this?)"""
377
378   arch = os.environ.get('PROCESSOR_ARCHITECTURE', 'x86')
379
380   matchup = {
381     'AMD64'  : 'x64',
382     'x86'    : 'ia32',
383     'arm'    : 'arm',
384   }
385
386   return matchup.get(arch, 'ia32')
387
388
389 def compiler_version():
390   try:
391     proc = subprocess.Popen(shlex.split(CC) + ['--version'], stdout=subprocess.PIPE)
392   except WindowsError:
393     return (0, False)
394
395   is_clang = 'clang' in proc.communicate()[0].split('\n')[0]
396
397   proc = subprocess.Popen(shlex.split(CC) + ['-dumpversion'], stdout=subprocess.PIPE)
398   version = tuple(map(int, proc.communicate()[0].split('.')))
399
400   return (version, is_clang)
401
402
403 def configure_arm(o):
404   # V8 on ARM requires that armv7 is set. CPU Model detected by
405   # the presence of __ARM_ARCH_7__ and the like defines in compiler
406   if options.arm_float_abi:
407     hard_float = options.arm_float_abi == 'hard'
408   else:
409     hard_float = arm_hard_float_abi()
410   o['variables']['v8_use_arm_eabi_hardfloat'] = b(hard_float)
411
412   armv7 = is_arch_armv7()
413   if armv7:
414     # CHECKME VFPv3 implies ARMv7+ but is the reverse true as well?
415     o['variables']['arm_fpu'] = 'vfpv3'
416     o['variables']['arm_neon'] = 0
417   o['variables']['armv7'] = int(armv7)
418
419
420 def configure_node(o):
421   o['variables']['v8_enable_gdbjit'] = 1 if options.gdb else 0
422   o['variables']['v8_no_strict_aliasing'] = 1 # work around compiler bugs
423   o['variables']['node_prefix'] = os.path.expanduser(options.prefix or '')
424   o['variables']['node_install_npm'] = b(not options.without_npm)
425   o['variables']['node_unsafe_optimizations'] = (
426     1 if options.unsafe_optimizations else 0)
427   o['default_configuration'] = 'Debug' if options.debug else 'Release'
428
429   host_arch = host_arch_win() if os.name == 'nt' else host_arch_cc()
430   target_arch = options.dest_cpu or host_arch
431   o['variables']['host_arch'] = host_arch
432   o['variables']['target_arch'] = target_arch
433
434   if target_arch == 'arm':
435     configure_arm(o)
436
437   cc_version, is_clang = compiler_version()
438   o['variables']['clang'] = 1 if is_clang else 0
439
440   if not is_clang and cc_version != 0:
441     o['variables']['gcc_version'] = 10 * cc_version[0] + cc_version[1]
442
443   # clang has always supported -fvisibility=hidden, right?
444   if not is_clang and cc_version < (4,0,0):
445     o['variables']['visibility'] = ''
446
447   # By default, enable DTrace on SunOS systems. Don't allow it on other
448   # systems, since it won't work.  (The MacOS build process is different than
449   # SunOS, and we haven't implemented it.)
450   if sys.platform.startswith('sunos'):
451     o['variables']['node_use_dtrace'] = b(not options.without_dtrace)
452   elif sys.platform.startswith('linux'):
453     o['variables']['node_use_dtrace'] = 'false'
454     o['variables']['node_use_systemtap'] = b(options.with_dtrace)
455     if options.systemtap_includes:
456       o['include_dirs'] += [options.systemtap_includes]
457   elif b(options.with_dtrace) == 'true':
458     raise Exception(
459        'DTrace is currently only supported on SunOS or Linux systems.')
460   else:
461     o['variables']['node_use_dtrace'] = 'false'
462     o['variables']['node_use_systemtap'] = 'false'
463
464   if options.no_ifaddrs:
465     o['defines'] += ['SUNOS_NO_IFADDRS']
466
467   # By default, enable ETW on Windows.
468   if sys.platform.startswith('win32'):
469     o['variables']['node_use_etw'] = b(not options.without_etw);
470   elif b(options.with_etw) == 'true':
471     raise Exception('ETW is only supported on Windows.')
472   else:
473     o['variables']['node_use_etw'] = 'false'
474
475
476 def configure_libz(o):
477   o['variables']['node_shared_zlib'] = b(options.shared_zlib)
478
479   # assume shared_zlib if one of these is set?
480   if options.shared_zlib_libpath:
481     o['libraries'] += ['-L%s' % options.shared_zlib_libpath]
482   if options.shared_zlib_libname:
483     o['libraries'] += ['-l%s' % options.shared_zlib_libname]
484   elif options.shared_zlib:
485     o['libraries'] += ['-lz']
486   if options.shared_zlib_includes:
487     o['include_dirs'] += [options.shared_zlib_includes]
488
489
490 def configure_http_parser(o):
491     o['variables']['node_shared_http_parser'] = b(options.shared_http_parser)
492
493     # assume shared http_parser if one of these is set?
494     if options.shared_http_parser_libpath:
495         o['libraries'] += ['-L%s' % options.shared_http_parser_libpath]
496     if options.shared_http_parser_libname:
497         o['libraries'] += ['-l%s' % options.shared_http_parser_libname]
498     elif options.shared_http_parser:
499         o['libraries'] += ['-lhttp_parser']
500     if options.shared_http_parser_includes:
501         o['include_dirs'] += [options.shared_http_parser_includes]
502
503
504 def configure_cares(o):
505     o['variables']['node_shared_cares'] = b(options.shared_cares)
506
507     # assume shared cares if one of these is set?
508     if options.shared_cares_libpath:
509         o['libraries'] += ['-L%s' % options.shared_cares_libpath]
510     if options.shared_cares_libname:
511         o['libraries'] += ['-l%s' % options.shared_cares_libname]
512     elif options.shared_cares:
513         o['libraries'] += ['-lcares']
514     if options.shared_cares_includes:
515         o['include_dirs'] += [options.shared_cares_includes]
516
517
518 def configure_libuv(o):
519   o['variables']['node_shared_libuv'] = b(options.shared_libuv)
520
521   # assume shared libuv if one of these is set?
522   if options.shared_libuv_libpath:
523     o['libraries'] += ['-L%s' % options.shared_libuv_libpath]
524   if options.shared_libuv_libname:
525     o['libraries'] += ['-l%s' % options.shared_libuv_libname]
526   elif options.shared_libuv:
527     o['libraries'] += ['-luv']
528   if options.shared_libuv_includes:
529     o['include_dirs'] += [options.shared_libuv_includes]
530
531
532 def configure_v8(o):
533   o['variables']['v8_use_snapshot'] = b(not options.without_snapshot)
534   o['variables']['node_shared_v8'] = b(options.shared_v8)
535
536   # assume shared_v8 if one of these is set?
537   if options.shared_v8_libpath:
538     o['libraries'] += ['-L%s' % options.shared_v8_libpath]
539   if options.shared_v8_libname:
540     o['libraries'] += ['-l%s' % options.shared_v8_libname]
541   elif options.shared_v8:
542     o['libraries'] += ['-lv8']
543   if options.shared_v8_includes:
544     o['include_dirs'] += [options.shared_v8_includes]
545
546
547 def configure_openssl(o):
548   o['variables']['node_use_openssl'] = b(not options.without_ssl)
549   o['variables']['node_shared_openssl'] = b(options.shared_openssl)
550
551   if options.without_ssl:
552     return
553
554   if options.no_ssl2:
555     o['defines'] += ['OPENSSL_NO_SSL2=1']
556
557   if options.shared_openssl:
558     (libs, cflags) = pkg_config('openssl') or ('-lssl -lcrypto', '')
559
560     if options.shared_openssl_libpath:
561       o['libraries'] += ['-L%s' % options.shared_openssl_libpath]
562
563     if options.shared_openssl_libname:
564       libnames = options.shared_openssl_libname.split(',')
565       o['libraries'] += ['-l%s' % s for s in libnames]
566     else:
567       o['libraries'] += libs.split()
568
569     if options.shared_openssl_includes:
570       o['include_dirs'] += [options.shared_openssl_includes]
571     else:
572       o['cflags'] += cflags.split()
573
574
575 output = {
576   'variables': {},
577   'include_dirs': [],
578   'libraries': [],
579   'defines': [],
580   'cflags': [],
581 }
582
583 configure_node(output)
584 configure_libz(output)
585 configure_http_parser(output)
586 configure_cares(output)
587 configure_libuv(output)
588 configure_v8(output)
589 configure_openssl(output)
590
591 # variables should be a root level element,
592 # move everything else to target_defaults
593 variables = output['variables']
594 del output['variables']
595 output = {
596   'variables': variables,
597   'target_defaults': output
598 }
599 pprint.pprint(output, indent=2)
600
601 def write(filename, data):
602   filename = os.path.join(root_dir, filename)
603   print "creating ", filename
604   f = open(filename, 'w+')
605   f.write(data)
606
607 write('config.gypi', "# Do not edit. Generated by the configure script.\n" +
608   pprint.pformat(output, indent=2) + "\n")
609
610 config = {
611   'BUILDTYPE': 'Debug' if options.debug else 'Release',
612   'USE_NINJA': str(int(options.use_ninja or 0)),
613   'USE_XCODE': str(int(options.use_xcode or 0)),
614 }
615 config = '\n'.join(map('='.join, config.iteritems())) + '\n'
616
617 write('config.mk',
618       '# Do not edit. Generated by the configure script.\n' + config)
619
620 if options.use_ninja:
621   gyp_args = ['-f', 'ninja']
622 elif options.use_xcode:
623   gyp_args = ['-f', 'xcode']
624 elif os.name == 'nt':
625   gyp_args = ['-f', 'msvs', '-G', 'msvs_version=auto']
626 elif options.dest_os:
627   gyp_args = ['-f', 'make-' + options.dest_os]
628 else:
629   gyp_args = ['-f', 'make']
630
631 subprocess.call([sys.executable, 'tools/gyp_node'] + gyp_args)