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我需要使用 scons 为大型项目生成发布和调试版本。对于发布和调试版本，它会生成共享库和静态库。构建后的目录结构应如下所示：

project_dir/
   |_ src
   |_ include
   |_ lib
      |_ lib_rel
      |_ lib_dbg
   |_ dll
      |_ dll_rel
      |_ dll_dbg

我怎样才能实现 SConstruct 和 SConscript 遵守上述要求？

SConstruct 实现：

env = Environment()
relEnv = env.clone(CCFLAGS = ['-O3', '-pthread')]
dbgEnv = env.clone(CCFLAGS = ['-O0', '-g', '-pthread')]
SConscript(dirs = 'src', name = 'SConscript',  exports = {'env' : relEnv}, variant_dir = 'lib_rel', duplicate = 0)
SConscript(dirs = 'src', name = 'SConscript',  exports = {'env' : dbgEnv}, variant_dir = 'lib_dbg', duplicate = 0)

src/SConscript 实现：

Import('env')
src_list = Glob('*.cpp')
inc_list = ['dir_1/include', 'dir_2/include', 'common/include']
env.SharedLibrary(target = 'foo', source = src_list, CPP_PATH=inc_list)
env.StaticLibrary(target = 'foo', source = src_list, CPP_PATH=inc_list)

使用上面的实现，它可以在 lib_rel 文件夹和相关的目标文件中生成共享和静态库，有没有什么方法可以使用变体目录，对于 SharedLibrary，它使用目标目录作为 {dll/lib_rel ， dll/lib_dbg} 和对于 StaticLibrary 方法，它使用 variant_dir 作为 {lib/lib_rel, lib/lib_dbg}

一种可能的方法是为 SharedLibrary 和 StaticLibrary 设置单独的 SConscript。但是这是非常典型的，每个库构建器方法都需要两个不同的文件。

请为此提出适当的解决方案。

4

2 回答 2

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我会将静态性和调试性视为两个维度，并四次调用 SConscript，如下所示：

env = Environment()
relEnv = env.Clone(CCFLAGS = ['-O3', '-pthread'])
dbgEnv = env.Clone(CCFLAGS = ['-O0', '-g', '-pthread'])
SConscript(dirs = 'src', name = 'SConscript',  exports = {'env' : relEnv, 'Library' : relEnv.StaticLibrary}, variant_dir = 'lib/lib_rel', duplicate = 0)
SConscript(dirs = 'src', name = 'SConscript',  exports = {'env' : dbgEnv, 'Library' : dbgEnv.StaticLibrary}, variant_dir = 'lib/lib_dbg', duplicate = 0)
SConscript(dirs = 'src', name = 'SConscript',  exports = {'env' : relEnv, 'Library' : relEnv.SharedLibrary}, variant_dir = 'dll/dll_rel', duplicate = 0)
SConscript(dirs = 'src', name = 'SConscript',  exports = {'env' : dbgEnv, 'Library' : dbgEnv.SharedLibrary}, variant_dir = 'dll/dll_dbg', duplicate = 0)

当然，这很难看，所以我实际上会使用一个循环：

env = Environment()
relEnv = env.Clone(CCFLAGS = ['-O3', '-pthread'])
dbgEnv = env.Clone(CCFLAGS = ['-O0', '-g', '-pthread'])

for env, envPath in ((relEnv, 'rel'), (dbgEnv, 'dbg')):
  for lib, libPath in ((env.StaticLibrary, 'lib'), (env.SharedLibrary, 'dll')):
    SConscript(dirs = 'src', 
               name = 'SConscript',
               exports = {'env' : env, 'Library' : lib},
               variant_dir = '{libPath}/{libPath}_{envPath}'.format(**locals()),
               duplicate = 0)

SConscript 需要 import Library，当然：

Import('env', 'Library')
src_list = Glob('*.cpp')
inc_list = ['dir_1/include', 'dir_2/include', 'common/include']
Library(target = 'foo', source = src_list, CPP_PATH=inc_list)
于 2014-10-31T03:19:15.997 回答
0

SConstruct

env = Environment()
relEnv = env.clone(CCFLAGS = ['-O3', '-pthread')]
dbgEnv = env.clone(CCFLAGS = ['-O0', '-g', '-pthread')]
SConscript(dirs = 'src', name = 'SConscript',  exports = {'env' : relEnv, 'BUILD_TYPE'='rel'}, variant_dir = 'lib_rel', duplicate = 0)
SConscript(dirs = 'src', name = 'SConscript',  exports = {'env' : dbgEnv, 'BUILD_TYPE'='dbg'}, variant_dir = 'lib_dbg', duplicate = 0)

征兵

Import('env')
src_list = Glob('*.cpp')
inc_list = ['dir_1/include', 'dir_2/include', 'common/include']
env.SharedLibrary(target = '#/lib/lib_${BUILD_TYPE}/foo', source = src_list, CPP_PATH=inc_list)
env.StaticLibrary(target = '#/lib/lib_${BUILD_TYPE}/foo', source = src_list, CPP_PATH=inc_list)

应该管用。没试过。

于 2014-06-26T23:03:33.370 回答