scons

问题 I'm working on an SConstruct build file for a project and I'm trying to update from Options to Variables, since Options is being deprecated. I don't understand how to use Variables though. I have 0 python experience which is probably contributing to this. For example, I have this: opts = Variables() opts.Add('fcgi',0) print opts['fcgi'] But I get an error: AttributeError: Variables instance has no attribute '__getitem__': Not sure how this is supposed to work 回答1: Typically you would store

问题 I have a project which I build using SCons (and MinGW/gcc depending on the platform). This project depends on several other libraries (lets call them libfoo and libbar ) which can be installed on different places for different users. Currently, my SConstruct file embeds hard-coded path to those libraries (say, something like: C:\libfoo ). Now, I'd like to add a configuration option to my SConstruct file so that a user who installed libfoo at another location (say C:\custom_path\libfoo ) can

问题 I am toying around with c++17 and plugins, and I have run into an error that I cannot get around. In the following MWE I can call a local function that takes a std::any , and everything works as expected when I try to read the contents. When I load this exact same function through a plugin (dlopen), it correctly sees the type on the any, but it cannot std::any_cast the contents. Any help would be greatly appreciated in figuring out what is causing this error. Here is my environment, MWE, and

问题 can someone give a scons config file which allows the following structure toplevel/ /src - .cc files /include .h files at top level I want the o and final exe. 回答1: Here is one example of Sconscript file env=Environment(CPPPATH='/usr/include/glib-2.0/:/usr/lib/glib-2.0/include:inc', CPPDEFINES=[], LIBS=['glib-2.0']) env.Program('runme', Glob('src/*.c')) (The environment line is not really necessary for the example, but I have it to include the non standard glib header path and left it there

问题 Simple question. Are there any tools for generating Xcode projects from the command line? We use SCons to build our cross-platform application, but that doesn't support intrinsic Xcode project generation. We'd like to avoid creating the project manually, since this would involve maintaining multiple file lists. 回答1: I think that your question should be "Is there a way to generate an XCode project from a SCons one?". I suppose, by your asking and by reading the others, that the answer is 'no'.

问题 On my Linux platform, I have several versions of gcc . Under usr/bin I have: gcc34 gcc44 gcc Here are some outputs: $ gcc --version gcc (GCC) 4.1.2 20080704 (Red Hat 4.1.2-48) $ gcc44 --version gcc44 (GCC) 4.4.0 20090514 (Red Hat 4.4.0-6) I need to use the 4.4 version of gcc however the default seems to the 4.1 one. I there a way to replace /usr/bin/gcc and make gcc44 the default compiler not using a symlink to /usr/bin/gcc44 ? The reason why I can't use a symlink is because my code will have

问题 I have a library project that contains some samples in a subfolder. The library itself has a SConstruct file and each sample has its own folder and its own SConstruct file. I'd like to add a target to the main (root) SConstruct file which would allow me to compile the library as usual, and all the samples, at once. Is there an existing mechanism/builder for this ? P.S: I don't want to have only one big SConstruct file because I want the samples folders to remain independant. 回答1: http://www

问题 I am trying to get SCons to generate multiple targets (number unknown directly in SConscript ). I have directory like: headers/ Header1.h Header2.h Header3.h Header4.h meta/ headers_list.txt Now I want SConscript to read headers_list.txt , basing on its contents pick files from headers/ directory (i.e. it might contain only Header1 and Header3 ), for each of those I want to generate source using some function. I have been trying to use env.Command to do that, but the issue is that it requires

问题 We are evaluating scons as a build system, and I am having a problem accomodating our old system. In some of our source code subdirectories, we have a "sources.lib" file that lists the names of the C++ files that need to be compiled to assemble that directory's target library. But, there are additional C++ files in the same directory, so I can't just use Glob() to find the appropriate ones. How do I find out which directory a SConscript file resides in? os.getcwd() always returns the build

问题 I'm trying to figure out how to override the behaviour when SCons copies artifacts from the cache directory (given by CacheDir) to used hard-links. My current try def link_or_copy_file(class_instance, src, dst): # do hardlinking instead... SCons.Defaults.DefaultEnvironment()._copy_from_cache = link_or_copy_file SCons.Defaults.DefaultEnvironment()._copy2_from_cache = link_or_copy_file env = Environment() env._copy_from_cache = link_or_copy_file env._copy2_from_cache = link_or_copy_file has no