当安装目录为或在当前目录下不,使用SCons并不像预期的那样,如SCons Install method docs:
注意评论,但是,在安装文件仍然被认为是一个类型 文件“build”。当您记住SCons的默认 行为是在当前目录中或以下创建文件时,这一点很重要。 如上例所示,如果要在顶级SConstruct文件的目录树以外的目录 中安装文件,则必须指定 的目录(或更高的目录,例如/)为其安装任何内容有:
也就是说,您必须调用SCONS并将安装目录作为目标(您的情况为SP3_env['SP3_lib_dir']
)才能执行安装。为了简化这一点,请按照以下方式使用env.Alias()
。
当您调用SCons时,您至少应该看到静态库和共享库都建立在本地项目目录中。然而,我想象,SCons不会安装它们。下面是我在Ubuntu上提出,工作的例子:
env = Environment()
sourceFiles = 'ExampleClass.cc'
sharedLib = env.SharedLibrary(target='example', source=sourceFiles)
staticLib = env.StaticLibrary(target='example', source=sourceFiles)
# Notice that installDir is outside of the local project dir
installDir = '/home/notroot/projects/sandbox'
sharedInstall = env.Install(installDir, sharedLib)
staticInstall = env.Install(installDir, staticLib)
env.Alias('install', installDir)
如果我执行scons的,没有目标,我得到如下:
# scons
scons: Reading SConscript files ...
scons: done reading SConscript files.
scons: Building targets ...
g++ -o ExampleClass.o -c ExampleClass.cc
g++ -o ExampleClass.os -c -fPIC ExampleClass.cc
ar rc libexample.a ExampleClass.o
ranlib libexample.a
g++ -o libexample.so -shared ExampleClass.os
scons: done building targets.
然后我可以安装,执行scons的与安装目标,如下:
# scons install
scons: Reading SConscript files ...
scons: done reading SConscript files.
scons: Building targets ...
Install file: "libexample.a" as "/home/notroot/projects/sandbox/libexample.a"
Install file: "libexample.so" as "/home/notroot/projects/sandbox/libexample.so"
scons: done building targets.
或者,你可能只是做这一切与一个命令,先清理一切
# scons -c install
然后,做这一切只用一个命令:
# scons install
scons: Reading SConscript files ...
scons: done reading SConscript files.
scons: Building targets ...
g++ -o ExampleClass.o -c ExampleClass.cc
g++ -o ExampleClass.os -c -fPIC ExampleClass.cc
ar rc libexample.a ExampleClass.o
ranlib libexample.a
g++ -o libexample.so -shared ExampleClass.os
Install file: "libexample.a" as "/home/notroot/projects/sandbox/libexample.a"
Install file: "libexample.so" as "/home/notroot/projects/sandbox/libexample.so"
scons: done building targets.