我有一些与DCMTK有关的代码.如果我从命令行使用g,我可以成功构建并运行它.这是代码：
#include "dcmtk/config/osconfig.h"
#include "dcmtk/dcmdata/dctk.h"
int main()
{
DcmFileFormat fileformat;
OFCondition status = fileformat.loadFile("test.dcm");
if (status.good())
{
OFString patientsName;
if (fileformat.getDataset()->findAndGetOFString(DCM_PatientsName,patientsName).good())
{
cout << "Patient's Name: " << patientsName << endl;
} else
cerr << "Error: cannot access Patient's Name!" << endl;
} else
cerr << "Error: cannot read DICOM file (" << status.text() << ")" << endl;
return 0;
}
这是构建命令：
g++ testeapp.cxx -DHAVE_CONFIG_H -I/path_to_dcmtk/include -L/path_to_dcmtk/lib -pthread -ldcmdata -lz -loflog -lofstd -o main
我想制作一个CMakeLists.txt来在Kdevelop中构建它.这就是我目前拥有的：
# Configure toplevel directories
SET( PREFIX ${CMAKE_INSTALL_PREFIX} CACHE PATH "Top level.")
SET( INCLUDEDIR ${PREFIX}/include CACHE PATH "Include files.")
SET( LIBDIR ${PREFIX}/lib CACHE PATH "Libraries.")
FIND_PACKAGE ( Threads required )
# Configure DCMTK
FIND_PATH( DINIFTI_DCMTK_INCLUDE dcmtk
PATHS ${INCLUDEDIR}
PATH_SUFFIXES dcmtk
DOC "Path to the DCMTK headers." )
FIND_LIBRARY(DINIFTI_DCMTK_LIB NAMES dcmdata ofstd oflog
HINTS ${LIBDIR} ${LIBDIR})
TARGET_LINK_LIBRARIES( dinifti ${DINIFTI_DCMTK_LIB}
${DINIFTI_ZNZ_LIB}
${CMAKE_THREAD_LIBS_INIT}
z )
但是当我构建它时,它有这个错误：
/usr/local/lib/libdcmdata.a(dcfilefo.o): In function `DcmFileFormat::remove(DcmItem*)': dcfilefo.cc:(.text+0x1788): undefined reference to `log4cplus::Logger::forcedLog(int,OFString const&,char const*,int,char const*) const'
你能帮我修一下这个错误吗？谢谢.
解决方法
看起来您希望
find_library调用使用3个单独的库填充变量DINIFTI_DCMTK_LIB.
这不是find_library的工作原理. NAMES之后的不同参数表示可以调用单个库的所有各种名称.这允许命令跨平台工作,其中相同的库可以在不同平台上被称为不同的东西.
一个小问题是你可能更喜欢在这里使用PATHS而不是HINTS.形成文档：
… the @H_502_28@HINTS option … should be paths computed by system introspection,such as a hint provided by the location of another item already found. Hard-coded guesses should be specified with the @H_502_28@PATHS option.
我想你想要更像的东西：
find_library(DINIFTI_DCMTK_LIB NAMES dcmdata PATHS ${LIBDIR})
find_library(OFSTD_LIB NAMES ofstd PATHS ${LIBDIR})
find_library(OFLOG_LIB NAMES oflog PATHS ${LIBDIR})
target_link_libraries(dinifti ${DINIFTI_DCMTK_LIB}
${OFLOG_LIB}
${OFSTD_LIB}
${DINIFTI_ZNZ_LIB}
${CMAKE_THREAD_LIBS_INIT}
z)
