1#!/usr/bin/env python
2# encoding: utf-8
3# Thomas Nagy, 2006-2018 (ita)
4# Ralf Habacker, 2006 (rh)
5# Yinon Ehrlich, 2009
6
7"""
8gcc/llvm detection.
9"""
10
11from waflib.Tools import ccroot, ar
12from waflib.Configure import conf
13
14@conf
15def find_gcc(conf):
16	"""
17	Find the program gcc, and if present, try to detect its version number
18	"""
19	cc = conf.find_program(['gcc', 'cc'], var='CC')
20	conf.get_cc_version(cc, gcc=True)
21	conf.env.CC_NAME = 'gcc'
22
23@conf
24def gcc_common_flags(conf):
25	"""
26	Common flags for gcc on nearly all platforms
27	"""
28	v = conf.env
29
30	v.CC_SRC_F            = []
31	v.CC_TGT_F            = ['-c', '-o']
32
33	if not v.LINK_CC:
34		v.LINK_CC = v.CC
35
36	v.CCLNK_SRC_F         = []
37	v.CCLNK_TGT_F         = ['-o']
38	v.CPPPATH_ST          = '-I%s'
39	v.DEFINES_ST          = '-D%s'
40
41	v.LIB_ST              = '-l%s' # template for adding libs
42	v.LIBPATH_ST          = '-L%s' # template for adding libpaths
43	v.STLIB_ST            = '-l%s'
44	v.STLIBPATH_ST        = '-L%s'
45	v.RPATH_ST            = '-Wl,-rpath,%s'
46
47	v.SONAME_ST           = '-Wl,-h,%s'
48	v.SHLIB_MARKER        = '-Wl,-Bdynamic'
49	v.STLIB_MARKER        = '-Wl,-Bstatic'
50
51	v.cprogram_PATTERN    = '%s'
52
53	v.CFLAGS_cshlib       = ['-fPIC']
54	v.LINKFLAGS_cshlib    = ['-shared']
55	v.cshlib_PATTERN      = 'lib%s.so'
56
57	v.LINKFLAGS_cstlib    = ['-Wl,-Bstatic']
58	v.cstlib_PATTERN      = 'lib%s.a'
59
60	v.LINKFLAGS_MACBUNDLE = ['-bundle', '-undefined', 'dynamic_lookup']
61	v.CFLAGS_MACBUNDLE    = ['-fPIC']
62	v.macbundle_PATTERN   = '%s.bundle'
63
64@conf
65def gcc_modifier_win32(conf):
66	"""Configuration flags for executing gcc on Windows"""
67	v = conf.env
68	v.cprogram_PATTERN    = '%s.exe'
69
70	v.cshlib_PATTERN      = '%s.dll'
71	v.implib_PATTERN      = '%s.dll.a'
72	v.IMPLIB_ST           = '-Wl,--out-implib,%s'
73
74	v.CFLAGS_cshlib       = []
75
76	# Auto-import is enabled by default even without this option,
77	# but enabling it explicitly has the nice effect of suppressing the rather boring, debug-level messages
78	# that the linker emits otherwise.
79	v.append_value('LINKFLAGS', ['-Wl,--enable-auto-import'])
80
81@conf
82def gcc_modifier_cygwin(conf):
83	"""Configuration flags for executing gcc on Cygwin"""
84	gcc_modifier_win32(conf)
85	v = conf.env
86	v.cshlib_PATTERN = 'cyg%s.dll'
87	v.append_value('LINKFLAGS_cshlib', ['-Wl,--enable-auto-image-base'])
88	v.CFLAGS_cshlib = []
89
90@conf
91def gcc_modifier_darwin(conf):
92	"""Configuration flags for executing gcc on MacOS"""
93	v = conf.env
94	v.CFLAGS_cshlib       = ['-fPIC']
95	v.LINKFLAGS_cshlib    = ['-dynamiclib']
96	v.cshlib_PATTERN      = 'lib%s.dylib'
97	v.FRAMEWORKPATH_ST    = '-F%s'
98	v.FRAMEWORK_ST        = ['-framework']
99	v.ARCH_ST             = ['-arch']
100
101	v.LINKFLAGS_cstlib    = []
102
103	v.SHLIB_MARKER        = []
104	v.STLIB_MARKER        = []
105	v.SONAME_ST           = []
106
107@conf
108def gcc_modifier_aix(conf):
109	"""Configuration flags for executing gcc on AIX"""
110	v = conf.env
111	v.LINKFLAGS_cprogram  = ['-Wl,-brtl']
112	v.LINKFLAGS_cshlib    = ['-shared','-Wl,-brtl,-bexpfull']
113	v.SHLIB_MARKER        = []
114
115@conf
116def gcc_modifier_hpux(conf):
117	v = conf.env
118	v.SHLIB_MARKER        = []
119	v.STLIB_MARKER        = []
120	v.CFLAGS_cshlib       = ['-fPIC','-DPIC']
121	v.cshlib_PATTERN      = 'lib%s.sl'
122
123@conf
124def gcc_modifier_openbsd(conf):
125	conf.env.SONAME_ST = []
126
127@conf
128def gcc_modifier_osf1V(conf):
129	v = conf.env
130	v.SHLIB_MARKER        = []
131	v.STLIB_MARKER        = []
132	v.SONAME_ST           = []
133
134@conf
135def gcc_modifier_platform(conf):
136	"""Execute platform-specific functions based on *gcc_modifier_+NAME*"""
137	# * set configurations specific for a platform.
138	# * the destination platform is detected automatically by looking at the macros the compiler predefines,
139	#   and if it's not recognised, it fallbacks to sys.platform.
140	gcc_modifier_func = getattr(conf, 'gcc_modifier_' + conf.env.DEST_OS, None)
141	if gcc_modifier_func:
142		gcc_modifier_func()
143
144def configure(conf):
145	"""
146	Configuration for gcc
147	"""
148	conf.find_gcc()
149	conf.find_ar()
150	conf.gcc_common_flags()
151	conf.gcc_modifier_platform()
152	conf.cc_load_tools()
153	conf.cc_add_flags()
154	conf.link_add_flags()
155	conf.check_gcc_o_space()
156
157