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mirror of https://gitlab.com/ita1024/waf.git synced 2024-12-11 11:20:21 +01:00
waf/waflib/Tools/gxx.py
Alexander Afanasyev 728205fe3c Change with shared library compatibility version handling
For ELF binaries (e.g., Linux): default compatible version (SONAME =
`<library-name>.so.<MAJOR>`) can be specialized using additional `cnum`
parameter to `<library-name>.so.<MAJOR>.<MINOR>` or
`<library-name>.so.<MAJOR>.<MINOR>.<PATCH>`.

For Mach-O binaries (e.g., OS X):

- (bugfix) install-name points to compatible version (not absolute path
  to a non-versioned library)
- Default install-name `<install-path>/<library-name>.<MAJOR>.dylib` can
  be specialized using `cnum` parameter to
  `<install-path>/<library-name>.<MAJOR>.<MINOR>.dylib` or
  `<install-path>/<library-name>.<MAJOR>.<MINOR>.<PATCH>.dylib`
- `-Wl,-compatibility_version` and `-Wl,-current_version` flags use
  version from cnum/vnum (default cnum is vnum.split('.')[0])
2015-06-05 17:27:32 -07:00

162 lines
4.2 KiB
Python

#!/usr/bin/env python
# encoding: utf-8
# Thomas Nagy, 2006-2010 (ita)
# Ralf Habacker, 2006 (rh)
# Yinon Ehrlich, 2009
"""
g++/llvm detection.
"""
import os, sys
from waflib import Configure, Options, Utils
from waflib.Tools import ccroot, ar
from waflib.Configure import conf
@conf
def find_gxx(conf):
"""
Find the program g++, and if present, try to detect its version number
"""
cxx = conf.find_program(['g++', 'c++'], var='CXX')
conf.get_cc_version(cxx, gcc=True)
conf.env.CXX_NAME = 'gcc'
@conf
def gxx_common_flags(conf):
"""
Common flags for g++ on nearly all platforms
"""
v = conf.env
v['CXX_SRC_F'] = []
v['CXX_TGT_F'] = ['-c', '-o']
# linker
if not v['LINK_CXX']: v['LINK_CXX'] = v['CXX']
v['CXXLNK_SRC_F'] = []
v['CXXLNK_TGT_F'] = ['-o']
v['CPPPATH_ST'] = '-I%s'
v['DEFINES_ST'] = '-D%s'
v['LIB_ST'] = '-l%s' # template for adding libs
v['LIBPATH_ST'] = '-L%s' # template for adding libpaths
v['STLIB_ST'] = '-l%s'
v['STLIBPATH_ST'] = '-L%s'
v['RPATH_ST'] = '-Wl,-rpath,%s'
v['SONAME_ST'] = '-Wl,-h,%s'
v['SHLIB_MARKER'] = '-Wl,-Bdynamic'
v['STLIB_MARKER'] = '-Wl,-Bstatic'
# program
v['cxxprogram_PATTERN'] = '%s'
# shared library
v['CXXFLAGS_cxxshlib'] = ['-fPIC']
v['LINKFLAGS_cxxshlib'] = ['-shared']
v['cxxshlib_PATTERN'] = 'lib%s.so'
# static lib
v['LINKFLAGS_cxxstlib'] = ['-Wl,-Bstatic']
v['cxxstlib_PATTERN'] = 'lib%s.a'
# osx stuff
v['LINKFLAGS_MACBUNDLE'] = ['-bundle', '-undefined', 'dynamic_lookup']
v['CXXFLAGS_MACBUNDLE'] = ['-fPIC']
v['macbundle_PATTERN'] = '%s.bundle'
@conf
def gxx_modifier_win32(conf):
"""Configuration flags for executing gcc on Windows"""
v = conf.env
v['cxxprogram_PATTERN'] = '%s.exe'
v['cxxshlib_PATTERN'] = '%s.dll'
v['implib_PATTERN'] = 'lib%s.dll.a'
v['IMPLIB_ST'] = '-Wl,--out-implib,%s'
v['CXXFLAGS_cxxshlib'] = []
# Auto-import is enabled by default even without this option,
# but enabling it explicitly has the nice effect of suppressing the rather boring, debug-level messages
# that the linker emits otherwise.
v.append_value('LINKFLAGS', ['-Wl,--enable-auto-import'])
@conf
def gxx_modifier_cygwin(conf):
"""Configuration flags for executing g++ on Cygwin"""
gxx_modifier_win32(conf)
v = conf.env
v['cxxshlib_PATTERN'] = 'cyg%s.dll'
v.append_value('LINKFLAGS_cxxshlib', ['-Wl,--enable-auto-image-base'])
v['CXXFLAGS_cxxshlib'] = []
@conf
def gxx_modifier_darwin(conf):
"""Configuration flags for executing g++ on MacOS"""
v = conf.env
v['CXXFLAGS_cxxshlib'] = ['-fPIC']
v['LINKFLAGS_cxxshlib'] = ['-dynamiclib']
v['cxxshlib_PATTERN'] = 'lib%s.dylib'
v['FRAMEWORKPATH_ST'] = '-F%s'
v['FRAMEWORK_ST'] = ['-framework']
v['ARCH_ST'] = ['-arch']
v['LINKFLAGS_cxxstlib'] = []
v['SHLIB_MARKER'] = []
v['STLIB_MARKER'] = []
v['SONAME_ST'] = []
@conf
def gxx_modifier_aix(conf):
"""Configuration flags for executing g++ on AIX"""
v = conf.env
v['LINKFLAGS_cxxprogram']= ['-Wl,-brtl']
v['LINKFLAGS_cxxshlib'] = ['-shared', '-Wl,-brtl,-bexpfull']
v['SHLIB_MARKER'] = []
@conf
def gxx_modifier_hpux(conf):
v = conf.env
v['SHLIB_MARKER'] = []
v['STLIB_MARKER'] = []
v['CFLAGS_cxxshlib'] = ['-fPIC','-DPIC']
v['cxxshlib_PATTERN'] = 'lib%s.sl'
@conf
def gxx_modifier_openbsd(conf):
conf.env.SONAME_ST = []
@conf
def gcc_modifier_osf1V(conf):
v = conf.env
v['SHLIB_MARKER'] = []
v['STLIB_MARKER'] = []
v['SONAME_ST'] = []
@conf
def gxx_modifier_platform(conf):
"""Execute platform-specific functions based on *gxx_modifier_+NAME*"""
# * set configurations specific for a platform.
# * the destination platform is detected automatically by looking at the macros the compiler predefines,
# and if it's not recognised, it fallbacks to sys.platform.
gxx_modifier_func = getattr(conf, 'gxx_modifier_' + conf.env.DEST_OS, None)
if gxx_modifier_func:
gxx_modifier_func()
def configure(conf):
"""
Configuration for g++
"""
conf.find_gxx()
conf.find_ar()
conf.gxx_common_flags()
conf.gxx_modifier_platform()
conf.cxx_load_tools()
conf.cxx_add_flags()
conf.link_add_flags()