【发布时间】：2020-02-03 06:48:36
【问题描述】：
我正在尝试使用 CLion 在我的 Mac OS 10.13.1 (macOS High Sierra) 上使用 IBM ILOG CPLEX 12.7.1。这是一段非常简单的 C++ 代码。
#include <iostream>
#include <ilcplex/ilocplex.h>
using namespace std;
int main() {
std::cout << "Hello, World!" << std::endl;
IloEnv env;
x: IloCplex cplex(env);
std::cout << env.getVersion() << endl;
return 0;
}
以下在我的Makefile。
SYSTEM = x86-64_osx
LIBFORMAT = static_pic
CPLEXDIR = /Users/soheilmn/Applications/IBM/ILOG/CPLEX_Studio1271/cplex
CONCERTDIR = /Users/soheilmn/Applications/IBM/ILOG/CPLEX_Studio1271/concert
# ---------------------------------------------------------------------
# Compiler selection
# ---------------------------------------------------------------------
CCC = clang++ -O0
# ---------------------------------------------------------------------
# Compiler options
# ---------------------------------------------------------------------
CCOPT = -m64 -O -fPIC -fexceptions -DNDEBUG -DIL_STD -stdlib=libc++
# ---------------------------------------------------------------------
# Link options and libraries
# ---------------------------------------------------------------------
CPLEXBINDIR = $(CPLEXDIR)/bin/$(BINDIST)
CPLEXLIBDIR = $(CPLEXDIR)/lib/$(SYSTEM)/$(LIBFORMAT)
CONCERTLIBDIR = $(CONCERTDIR)/lib/$(SYSTEM)/$(LIBFORMAT)
CCLNDIRS = -L$(CPLEXLIBDIR) -L$(CONCERTLIBDIR)
CCLNFLAGS = -lconcert -lilocplex -lcplex -lm -lpthread -ldl #-framework CoreFoundation -framework IOKit -stdlib=libc++
all:
make main
CONCERTINCDIR = $(CONCERTDIR)/include
CPLEXINCDIR = $(CPLEXDIR)/include
CCFLAGS = $(CCOPT) -I$(CPLEXINCDIR) -I$(CONCERTINCDIR)
# ------------------------------------------------------------
main: main.o
$(CCC) $(CCFLAGS) $(CCLNDIRS) -o main main.o $(CCLNFLAGS)
main.o: ./main.cpp
$(CCC) -c $(CCFLAGS) ./main.cpp -o main.o
这是CMakeLists.txt，我尝试使用与Makefile 中提到的参数完全相同的参数来创建它。
cmake_minimum_required(VERSION 3.14)
project(cplextest)
add_executable(cplextest main.cpp)
set(CMAKE_CXX_COMPILER clang++)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -m64 -O -fPIC -fexceptions -DNDEBUG -DIL_STD -stdlib=libc++")
include_directories(/Users/soheilmn/Applications/IBM/ILOG/CPLEX_Studio1271/cplex/include/)
include_directories(/Users/soheilmn/Applications/IBM/ILOG/CPLEX_Studio1271/cplex/include/ilcplex)
include_directories(/Users/soheilmn/Applications/IBM/ILOG/CPLEX_Studio1271/concert/include)
include_directories(/Users/soheilmn/Applications/IBM/ILOG/CPLEX_Studio1271/concert/include/ilconcert)
find_library(lib1 NAMES libcplex.a PATHS /Users/soheilmn/Applications/IBM/ILOG/CPLEX_Studio1271/cplex/lib/x86-64_osx/static_pic/)
find_library(lib2 NAMES libilocplex.a PATHS /Users/soheilmn/Applications/IBM/ILOG/CPLEX_Studio1271/cplex/lib/x86-64_osx/static_pic/)
find_library(lib3 NAMES libcplexdistmip.a PATHS /Users/soheilmn/Applications/IBM/ILOG/CPLEX_Studio1271/cplex/lib/x86-64_osx/static_pic/)
set (CMAKE_SHARED_LINKER_FLAGS "-lconcert -lilocplex -lcplex -lm -lpthread -ldl #-framework CoreFoundation -framework IOKit -stdlib=libc++")
target_link_libraries(cplextest PUBLIC ${lib1})
target_link_libraries(cplextest PUBLIC ${lib2})
target_link_libraries(cplextest PUBLIC ${lib3})
然而，虽然 Makefile 工作完美（即，我可以从终端成功运行我的程序），但 CLion 会产生以下错误消息。
====================[ Build | cplextest | Debug ]===============================
/Applications/CLion.app/Contents/bin/cmake/mac/bin/cmake --build /Users/soheilmn/CLionProjects/CplexTest/cmake-build-debug --target cplextest -- -j 2
[ 50%] Linking CXX executable cplextest
Undefined symbols for architecture x86_64:
"IloCplex::IloCplex(IloEnv)", referenced from:
_main in main.cpp.o
"IloCplexI::getVersion() const", referenced from:
_main in main.cpp.o
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make[3]: *** [cplextest] Error 1
make[2]: *** [CMakeFiles/cplextest.dir/all] Error 2
make[1]: *** [CMakeFiles/cplextest.dir/rule] Error 2
make: *** [cplextest] Error 2
有趣的是，如果我在我的 C++ 代码中注释掉行 (x)，我可以成功地从 CLion 运行我的代码。这确实让我很困惑，因为我的理解是两个程序都使用clang++ 和相同的库/头文件。任何帮助将不胜感激。 （抱歉提前发了这么长的帖子！）
谢谢！
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