尝试构建xerces c ++解析器。 Netbeans和命令行构建错误未定义对xercesc_3_2…的引用

Question

bounty到期明天。该问题的答案有资格获得+ 150声望赏金。cyber101正在寻找来自信誉良好的来源的答案：“以最小的方式更改Makefile，以使用自己的newmain.cpp构建xerces。谢谢”

我正在尝试在基于Linux RedHat构建的NetBeans项目中Xerces c ++解析器库。

我遵循了构建指南（https://xerces.apache.org/xerces-c/build-3.html#UNIX）

1）下载tar.gz“ xerces-c-3.2.2.tar.gz”

2）使用“ tar xvzf”作为xerces-c-3.2.2提取到tar用户my / home / myuser / projects

3）导航到/ home / myuser / projects / xerces-c-3.2.2并在Linux上的命令行中发布

./ configure --disable-shared --disable-static

有很多输出，但没有错误，下一个：

4）我在同一目录中运行了[[make]。创建了许多.o和.lo文件...

输出是这样的：

 CXX      src/SEnumVal/SEnumVal.o
  CXXLD    SEnumVal
  CXX      src/StdInParse/StdInParse.o
  CXX      src/StdInParse/StdInParseHandlers.o
  CXXLD    StdInParse
  CXX      src/XInclude/XInclude.o
  CXXLD    XInclude

    make[2]: Leaving directory `/home/myUser/projects/xerces-c-3.2.2/samples'
    make[2]: Entering directory `/home/myUser/projects/xerces-c-3.2.2'
    make[2]: Leaving directory `/home/myUser/projects/xerces-c-3.2.2'
    make[1]: Leaving directory `/home/myUser/projects/xerces-c-3.2.2'

没有错误，下一个：
5）cd / src和ls -a显示已建立.libs目录。
进入/home/myUser/projects/xerces-c-3.2.2/src/.libs的CD显示：
libxerces-c.a  libxerces-c.la  libxerces-c.lai

6）根据编程指南（http://xerces.apache.org/xerces-c/program-3.html），尝试运行示例代码：

#include <xercesc/util/PlatformUtils.hpp>
// Other include files, declarations, and non-Xerces-C++ initializations.

using namespace xercesc;

int main(int argc, char* argv[])
{
  try {
    XMLPlatformUtils::Initialize();
  }
  catch (const XMLException& toCatch) {
    // Do your failure processing here
    return 1;
  }

  // Do your actual work with Xerces-C++ here.

  XMLPlatformUtils::Terminate();

  // Other terminations and cleanup.
  return 0;
}

在按下项目属性之前，c ++编译器，包括目录并添加了以下路径

1）../../ projects / xerces-c-3.2.2 / src / xercesc

2）../../ projects / xerces-c-3.2.2 / src

3）../../ projects / xerces-c-3.2.2 / src / .libs

并包含标题的路径：

1）../../ projects / xerces-c-3.2.2 / src / xercesc / util / PlatformUtils.hpp

2）../../ projects / xerces-c-3.2.2 / src / xercesc / util / XMLUni.hpp

3）../../ projects / xerces-c-3.2.2 / src / xercesc / util / XMLException.hpp

我也转到项目属性，链接器并添加了“其他库目录”和“运行时搜索目录”

1）../../ projects / xerces-c-3.2.2 / src / xercesc

2）../../ projects / xerces-c-3.2.2 / src

3）../../ projects / xerces-c-3.2.2 / src / .libs

最后我按下了NetBeans的clean＆build，报告了编译器命令和错误：

cd '/home/myUser/NetBeansProjects/SOFF_test'
/usr/bin/gmake -f Makefile CONF=Debug clean
"/usr/bin/gmake" -f nbproject/Makefile-Debug.mk QMAKE= SUBPROJECTS= .clean-conf
gmake[1]: Entering directory `/home/myUser/NetBeansProjects/SOFF_test'
rm -f -r build/Debug
gmake[1]: Leaving directory `/home/myUser/NetBeansProjects/SOFF_test'

CLEAN SUCCESSFUL (total time: 209ms)

cd '/home/myUser/NetBeansProjects/SOFF_test'
/usr/bin/gmake -f Makefile CONF=Debug
"/usr/bin/gmake" -f nbproject/Makefile-Debug.mk QMAKE= SUBPROJECTS= .build-conf
gmake[1]: Entering directory `/home/myUser/NetBeansProjects/SOFF_test'
"/usr/bin/gmake"  -f nbproject/Makefile-Debug.mk dist/Debug/GNU-Linux/soff_test
gmake[2]: Entering directory `/home/myUser/NetBeansProjects/SOFF_test'
mkdir -p build/Debug/GNU-Linux
rm -f "build/Debug/GNU-Linux/newmain.o.d"

g++    -c -g -I../../projects/xerces-c-3.2.2/src/xercesc -I../../projects/xerces-c-3.2.2/src -include ../../projects/xerces-c-3.2.2/src/xercesc/util/PlatformUtils.hpp -include ../../projects/xerces-c-3.2.2/src/xercesc/util/XMLUni.hpp -include ../../projects/xerces-c-3.2.2/src/xercesc/util/XMLException.hpp -MMD -MP -MF "build/Debug/GNU-Linux/newmain.o.d" -o build/Debug/GNU-Linux/newmain.o newmain.cpp

mkdir -p dist/Debug/GNU-Linux

g++     -o dist/Debug/GNU-Linux/soff_test build/Debug/GNU-Linux/newmain.o -L../../projects/xerces-c-3.2.2/src/ -L../../projects/xerces-c-3.2.2/src/xercesc/ -L../../projects/xerces-c-3.2.2/src/.libs -Wl,-rpath,'../../projects/xerces-c-3.2.2/src/' -Wl,-rpath,'../../projects/xerces-c-3.2.2/src/xercesc/util/'
build/Debug/GNU-Linux/newmain.o: 

In function `main':
/home/myUser/NetBeansProjects/SOFF_test/newmain.cpp:26: undefined reference to `xercesc_3_2::XMLUni::fgXercescDefaultLocale'

/home/myUser/NetBeansProjects/SOFF_test/newmain.cpp:26: undefined reference to `xercesc_3_2::XMLPlatformUtils::Initialize(char const*, char const*, xercesc_3_2::PanicHandler*, xercesc_3_2::MemoryManager*)'

/home/myUser/NetBeansProjects/SOFF_test/newmain.cpp:36: undefined reference to `xercesc_3_2::XMLPlatformUtils::Terminate()'

build/Debug/GNU-Linux/newmain.o:(.gcc_except_table+0x10): undefined reference to `typeinfo for xercesc_3_2::XMLException'

collect2: error: ld returned 1 exit status
gmake[2]: *** [dist/Debug/GNU-Linux/soff_test] Error 1
gmake[2]: Leaving directory `/home/myUser/NetBeansProjects/SOFF_test'
gmake[1]: *** [.build-conf] Error 2
gmake[1]: Leaving directory `/home/myUser/NetBeansProjects/SOFF_test'
gmake: *** [.build-impl] Error 2

BUILD FAILED (exit value 2, total time: 456ms)

如果您参考g ++编译命令：

  g++    -c -g -I../../projects/xerces-c-3.2.2/src/xercesc -I../../projects/xerces-c-3.2.2/src -include ../../projects/xerces-c-3.2.2/src/xercesc/util/PlatformUtils.hpp -include ../../projects/xerces-c-3.2.2/src/xercesc/util/XMLUni.hpp -include ../../projects/xerces-c-3.2.2/src/xercesc/util/XMLException.hpp -MMD -MP -MF "build/Debug/GNU-Linux/newmain.o.d" -o build/Debug/GNU-Linux/newmain.o newmain.cpp


    g++     -o dist/Debug/GNU-Linux/soff_test build/Debug/GNU-Linux/newmain.o -L../../projects/xerces-c-3.2.2/src/ -L../../projects/xerces-c-3.2.2/src/xercesc/ -L../../projects/xerces-c-3.2.2/src/.libs -Wl,-rpath,'../../projects/xerces-c-3.2.2/src/' -Wl,-rpath,'../../projects/xerces-c-3.2.2/src/xercesc/util/'
    build/Debug/GNU-Linux/newmain.o: 

您可以看到包含代码示例的标题：

-include ../../projects/xerces-c-3.2.2/src/xercesc/util/PlatformUtils.hpp -include ../../projects/xerces-c-3.2.2/src/xercesc/util/XMLUni.hpp -include ../../projects/xerces-c-3.2.2/src/xercesc/util/XMLException.hpp

还为链接程序提供了.libs＆src（可能不是必需的）文件夹

-L../../projects/xerces-c-3.2.2/src/ -L../../projects/xerces-c-3.2.2/src/xercesc/ -L../../projects/xerces-c-3.2.2/src/.libs

NetBeans能够看到#include <xercesc/util/PlatformUtils.hpp>＆我什至可以单击进入xerces PlatformUtils.hpp并通过IDE来查看函数实现。 
1）为什么即使IDE可以解析标头，NetBeans也无法编译和查找Xerces库？

2）最终，如何解决此问题？ （我的包含正确吗？）

更新：

上面提到的原始错误“未定义引用”根据用户“ jww”的建议得到解决，请参见注释。

1）I ch

将#include更改为#include“ xercesc / util / PlatformUtils.hpp”2）还通过“项目属性”，“链接器，库”菜单添加了libxerces-c.a。

这些是NetBeans生成的更新的构建命令：

  g++    -c -g -I../../projects/xerces-c-3.2.2/src/xercesc -I../../projects/xerces-c-3.2.2/src -I../../projects/xerces-c-3.2.2/src/.libs -include ../../projects/xerces-c-3.2.2/src/xercesc/util/PlatformUtils.hpp -include ../../projects/xerces-c-3.2.2/src/xercesc/util/XMLUni.hpp -include ../../projects/xerces-c-3.2.2/src/xercesc/util/XMLException.hpp -MMD -MP -MF "build/Debug/GNU-Linux/newmain.o.d" -o build/Debug/GNU-Linux/newmain.o newmain.cpp
    mkdir -p dist/Debug/GNU-Linux


    g++     -o dist/Debug/GNU-Linux/soff_test build/Debug/GNU-Linux/newmain.o -L../../projects/xerces-c-3.2.2/src/ -L../../projects/xerces-c-3.2.2/src/xercesc/ -L../../projects/xerces-c-3.2.2/src/.libs -Wl,-rpath,'../../projects/xerces-c-3.2.2/src/.libs' -Wl,-rpath,'../../projects/xerces-c-3.2.2/src' -Wl,-rpath,'../../projects/xerces-c-3.2.2/src/xercesc' -lxerces-c

您可以看到已添加-lxerces-c标志。

现在我自然有新错误，这些错误与示例代码无关，但是深入到xerces库代码中，它们又具有“未定义引用”的性质。

See below:

/home/anaim/projects/xerces-c-3.2.2/src/xercesc/util/NetAccessors/Curl/CurlNetAccessor.cpp:70: undefined reference to `curl_global_init'

/home/anaim/projects/xerces-c-3.2.2/src/xercesc/util/NetAccessors/Curl/CurlNetAccessor.cpp:70: undefined reference to `curl_global_init'

../../projects/xerces-c-3.2.2/src/.libs/libxerces-c.a(CurlNetAccessor.o): In function `xercesc_3_2::CurlNetAccessor::cleanupCurl()':
/home/anaim/projects/xerces-c-3.2.2/src/xercesc/util/NetAccessors/Curl/CurlNetAccessor.cpp:78: undefined reference to `curl_global_cleanup'

../../projects/xerces-c-3.2.2/src/.libs/libxerces-c.a(CurlURLInputStream.o): In function `xercesc_3_2::CurlURLInputStream::readMore(int*)':
/home/anaim/projects/xerces-c-3.2.2/src/xercesc/util/NetAccessors/Curl/CurlURLInputStream.cpp:269: undefined reference to `curl_multi_perform'

Etc, etc...

我也通过添加-lcurl和-lpthread解决了上述错误以及更多问题>>
这是最新的编译命令（再次生成其NetBeans）
g++    -c -g -I../../projects/xerces-c-3.2.2/src/xercesc -I../../projects/xerces-c-3.2.2/src -include ../../projects/xerces-c-3.2.2/src/xercesc/util/PlatformUtils.hpp -include ../../projects/xerces-c-3.2.2/src/xercesc/util/XMLUni.hpp -include ../../projects/xerces-c-3.2.2/src/xercesc/util/XMLException.hpp -include ../../projects/xerces-c-3.2.2/src/xercesc/util/NetAccessors/Curl/CurlNetAccessor.hpp -include ../../projects/xerces-c-3.2.2/src/xercesc/util/NetAccessors/Curl/CurlURLInputStream.hpp -include ../../projects/xerces-c-3.2.2/src/xercesc/util/Transcoders/ICU/ICUTransService.hpp -include ../../projects/xerces-c-3.2.2/src/xercesc/xinclude/XIncludeDOMDocumentProcessor.hpp -include ../../projects/xerces-c-3.2.2/src/xercesc/xinclude/XIncludeLocation.hpp -include ../../projects/xerces-c-3.2.2/src/xercesc/xinclude/XIncludeUtils.hpp -MMD -MP -MF "build/Debug/GNU-Linux/newmain.o.d" -o build/Debug/GNU-Linux/newmain.o newmain.cpp
mkdir -p dist/Debug/GNU-Linux


g++     -o dist/Debug/GNU-Linux/soff_test build/Debug/GNU-Linux/newmain.o -L../../projects/xerces-c-3.2.2/src/ -L../../projects/xerces-c-3.2.2/src/xercesc/ -L../../projects/xerces-c-3.2.2/src/.libs -Wl,-rpath,'../../projects/xerces-c-3.2.2/src' -Wl,-rpath,'../../projects/xerces-c-3.2.2/src/xercesc' -Wl,-rpath,'../../projects/xerces-c-3.2.2/src/.libs' -lxerces-c -lcurl -lpthread
新错误：

再次获得“未定义的引用”：

../../ projects / xerces-c-3.2.2 / src / .libs / libxerces-c.a（ICUTransService.o）：在函数

xercesc_3_2::ICUTransService::upperCase(unsigned short*)':
/home/anaim/projects/xerces-c-
3.2.2/src/xercesc/util/Transcoders/ICU/ICUTransService.cpp:358: undefined reference to

u_toupper_50']中>

Etc ...

1）因此，我必须重复相同的步骤并将标题添加到路径中，直到这些都解决了吗？

这似乎是NetBeans问题？

如果开发人员提供了到库的写路径（在这种情况下为xerces），并且NetBeans能够看到该库（确实如此），为什么NetBeans不能生​​成正确的编译器/链接器命令，而不是C的全部内容/ C ++ IDE？

我的最新尝试：

我已经开始使用不依赖NetBeans的自定义Makefile。

这里是Makefile：

# vars c++
CXX := g++
CXXFLAGS := -std=c++11 -Wall -g 

#collect  all c++ files $(wildcard *.cpp)
SOURCES_CC = newmain.cpp 

#vars c
CC := gcc
CFLAGS := -std=c99 -Wall -g

#collect all c files
SOURCES_C := $(wildcard *.c) 

#objects 
OBJECTS_DIR := build

#construct objects from .c and .cpp to .o
OBJECTS := $(SOURCES_C:%.c=$(OBJECTS_DIR)/%.o) $(SOURCES_CC:%.cpp=$(OBJECTS_DIR)/%.o)

#includes 
INCLUDES := -I../../projects/xerces-c-3.2.2/src/xercesc -I../../projects/xerces-c-3.2.2/src -include ../../projects/xerces-c-3.2.2/src/xercesc/util/PlatformUtils.hpp -include ../../projects/xerces-c-3.2.2/src/xercesc/util/XMLUni.hpp -include ../../projects/xerces-c-3.2.2/src/xercesc/util/XMLException.hpp -MMD -MP -MF "build/Debug/GNU-Linux/newmain.o.d"

#final executable in dist 
DIST_DIR := dist
PROGRAM  := $(DIST_DIR)/main

#required libraries 
LDFLAGS = -lxerces-c

debug := CFLAGS

.PHONY: all
all debug: $(PROGRAM)

$(PROGRAM): $(INCLUDES) $(OBJECTS)
    $(CXX) -o $@ $(OBJECTS) $(LDFLAGS)

.PHONY: clean
    clean:
    rm -f $(PROGRAM) $(OBJECTS) 

这是最新的错误：

cd '/home/myuser/NetBeansProjects/SOFF_test'
/usr/bin/gmake -f Makefile CONF=Debug
gmake: *** No rule to make target `-I../../projects/xerces-c-3.2.2/src/xercesc', needed by `dist/main'.  Stop.

这是我唯一的问题！如何更改此自定义Makefile来构建样本xerces示例以及我自己的源文件（.c和.cpp）？

谢谢百万！

我正在尝试在基于Linux RedHat构建的NetBeans项目中Xerces c ++解析器库。我遵循构建指南（https://xerces.apache.org/xerces-c/build-3.html#UNIX）1）下载tar.gz“ ...

Answer 1

如果您不希望使用Make，我建议改用CMake。它更易于使用，并且Netbeans C ++插件对此具有内置支持。

安装程序：