我正在通过设置一个包含两个子项目的基本C ++示例项目来尝试Scons:
我遇到的问题是该库在与SConscript文件相同的目录中构建其.obj,.pdb,.lib,.dll等文件,而EXE在同一目录中构建文件。它的SConscript。应用程序成功构建了Prj2依赖项及其自身。但是,您无法运行生成的EXE,因为它无法找到所需的库,因为它位于另一个目录中。
如何让多个项目依赖于将二进制文件和调试信息输出到公共目录中,以便执行和调试它们?
这是我到目前为止所想到的:
我更新了下面的文件结构和文件内容,以完整地反映其中的工作解决方案。感谢他的洞察力。
使用此配置,您必须通过cd'ing到build目录然后运行以下命令来执行构建。我需要一个正常工作的别名设置来解决这个问题。
build> scons ../bin/project1.exe
/scons-sample
/bin
/release
/debug
/build
SConstruct
scons_helper.py
/prj1
SConscript
/include
/src
main.cpp
/prj2
SConscript
/include
functions.h
/src
functions.cpp
import os.path
BIN_DIR = '../bin'
OBJ_DIR = './obj'
#--------------------------------------
# CxxTest Options
#--------------------------------------
CXXTEST_DIR = '../extern/CxxTest/CxxTest-latest'
PERL = 'perl -w'
TESTS = '*.h'
TESTGEN = PERL + CXXTEST_DIR + '/cxxtestgen.pl'
CXXTESTGEN_FLAGS = '--runner=ParenPrinter \
--abort-on-fail \
--have-eh'
#--------------------------------------
# Options
#--------------------------------------
SetOption( 'implicit_cache', 1 )
# command line options
opts = Options()
opts.AddOptions(
EnumOption(
'debug',
'Debug version (useful for developers only)',
'no',
allowed_values = ('yes', 'no'),
map = { },
ignorecase = 1
)
)
#--------------------------------------
# Environment
#--------------------------------------
env = Environment(
options = opts,
#--------------------------------------
# Linker Options
#--------------------------------------
LIBPATH = [
'../extern/wxWidgets/wxWidgets-latest/lib/vc_dll'
],
LIBS = [
# 'wxmsw28d_core.lib',
# 'wxbase28d.lib',
# 'wxbase28d_odbc.lib',
# 'wxbase28d_net.lib',
'kernel32.lib',
'user32.lib',
'gdi32.lib',
'winspool.lib',
'comdlg32.lib',
'advapi32.lib',
'shell32.lib',
'ole32.lib',
'oleaut32.lib',
'uuid.lib',
'odbc32.lib',
'odbccp32.lib'
],
LINKFLAGS = '/nologo /subsystem:console /incremental:yes /debug /machine:I386',
#--------------------------------------
# Compiler Options
#--------------------------------------
CPPPATH = [
'./include/',
'../extern/wxWidgets/wxWidgets-latest/include',
'../extern/wxWidgets/wxWidgets-latest/vc_dll/mswd'
],
CPPDEFINES = [
'WIN32',
'_DEBUG',
'_CONSOLE',
'_MBCS',
'WXUSINGDLL',
'__WXDEBUG__'
],
CCFLAGS = '/W4 /EHsc /RTC1 /MDd /nologo /Zi /TP /errorReport:prompt'
)
env.Decider( 'MD5-timestamp' ) # For speed, use timestamps for change, followed by MD5
Export( 'env', 'BIN_DIR' ) # Export this environment for use by the SConscript files
#--------------------------------------
# Builders
#--------------------------------------
SConscript( '../prj1/SConscript' )
SConscript( '../prj2/SConscript' )
Default( 'prj1' )
import os.path
#--------------------------------------
# Functions
#--------------------------------------
# Prepends the full path information to the output directory so that the build
# files are dropped into the directory specified by trgt rather than in the
# same directory as the SConscript file.
#
# Parameters:
# env - The environment to assign the Program value for
# outdir - The relative path to the location you want the Program binary to be placed
# trgt - The target application name (without extension)
# srcs - The list of source files
# Ref:
# Credit grieve and his local SCons guru for this:
# http://stackoverflow.com/questions/279860/how-do-i-get-projects-to-place-their-build-output-into-the-same-directory-with
def PrefixProgram(env, outdir, trgt, srcs):
env.Program(target = os.path.join(outdir, trgt), source = srcs)
# Similar to PrefixProgram above, except for SharedLibrary
def PrefixSharedLibrary(env, outdir, trgt, srcs):
env.SharedLibrary(target = os.path.join(outdir, trgt), source = srcs)
def PrefixFilename(filename, extensions):
return [(filename + ext) for ext in extensions]
# Prefix the source files names with the source directory
def PrefixSources(srcdir, srcs):
return [os.path.join(srcdir, x) for x in srcs]
import os.path
import sys
sys.path.append( '../build' )
from scons_helper import *
Import( 'env', 'BIN_DIR' ) # Import the common environment
prj1_env = env.Clone() # Clone it so we don't make changes to the global one
#--------------------------------------
# Project Options
#--------------------------------------
PROG = 'project1'
#--------------------------------------
# Header Files
#--------------------------------------
INC_DIR = [
'../prj2/include'
]
HEADERS = [
''
]
#--------------------------------------
# Source Files
#--------------------------------------
SRC_DIR = './src'
SOURCES = [
'main.cpp'
]
# Prefix the source files names with the source directory
SOURCES = PrefixSources( SRC_DIR, SOURCES )
#--------------------------------------
# Compiler and Linker Overrides
#--------------------------------------
prj1_env.Append(
CPPPATH = INC_DIR,
LIBS = 'project2',
LIBPATH = BIN_DIR,
# Microsoft Visual Studio Specific
PDB = os.path.join( BIN_DIR, PROG + '.pdb' )
)
#--------------------------------------
# Builders
#--------------------------------------
PrefixProgram( prj1_env, BIN_DIR, PROG, SOURCES )
import os.path
import sys
sys.path.append( '../build' )
from scons_helper import *
Import( 'env', 'BIN_DIR' ) # Import the common environment
prj2_env = env.Clone() # Clone it so we don't make changes to the global one
#--------------------------------------
# Project Options
#--------------------------------------
PROG = 'project2'
#--------------------------------------
# Header Files
#--------------------------------------
INC_DIR = [
''
]
HEADERS = [
'functions.h'
]
#--------------------------------------
# Source Files
#--------------------------------------
SRC_DIR = './src/'
SOURCES = [
'functions.cpp'
]
# Prefix the source files names with the source directory
SOURCES = PrefixSources( SRC_DIR, SOURCES )
#--------------------------------------
# Compiler and Linker Overrides
#--------------------------------------
# Update the environment with the project specific information
prj2_env.Append(
CPPPATH = INC_DIR,
# Microsoft Visual Studio Specific
PDB = os.path.join( BIN_DIR, PROG + '.pdb' )
)
#--------------------------------------
# Builders
#--------------------------------------
PrefixSharedLibrary( prj2_env, BIN_DIR, PROG, SOURCES )
答案 0 :(得分:6)
好的第三次尝试是一种魅力。我只是把它放在一个新的答案,以保持清洁。我和我当地的scons guru谈过,他说安装方法应该有效,但是有一个更简单的方法。
只需定义您希望可执行文件(或dll)的完整路径。所以:
prj2_env.Program(target = os.path.join(BIN_DIR,PROG), source = SOURCES )
如果您不想在所有地方都这样做,您可以创建一个全局功能:
def PrefixProgram(env, trgt, srcs):
env.Program(target = os.path.join(env.["MY_OUTPUT_DIR"], trgt), source = srcs)
然后在您的SConscript中,例如:
import ('PrefixProgram')
# stuff ...
PrefixProgram(prj2_env, PROG, SOURCES)
请注意,您可以将自己的属性添加到环境中,即
env["MY_OUTPUT_DIR"]
来自。我从袖口写下了这个,所以期待一些小的语法错误,什么不是。显然,您可以对共享库和静态库应用相同的技巧。
为了充分披露,我向当地的scons guru提供了自己回答这个问题的机会,但他害怕他会沉迷于该网站并拒绝。 :)
答案 1 :(得分:3)
VariantDir是这样做的方法。你的Sconstruct如何调用你的Sconscript文件?您还阅读了文档的这一部分:http://www.scons.org/doc/1.1.0/HTML/scons-user/c3271.html(我猜你有)。
在您的SConscripts中调用
env.Install("../bin", <your target exe or dll>)
然后在你的Sconstruct电话中
env.Alias('install', "../bin")
Default('install')
这应该可以解决问题,而且我认为这些链接可以清楚地表明这一切是如何协同工作的。