CODEWITHSUNDEEP
c++c++11visual-studio-2015cmake
Gabriel Britcher
Gabriel Britcher

Reputation: 231

CMake can not determine linker language for target: fileloader

I know there are already a few threads on this topic, however, after reading through many of them I have been unable to find a solution to my problem. I am working on a file loader/parser and am using CMake for the first time. My CMakeList.txt file is being used to import an XML parser (xerces) and currently looks like:

cmake_minimum_required(VERSION 2.8)
project(fileloader)

set(SRCS
        Source.cpp
)

include_directories(./
        ${SPF_ROOT}/xerces/win64/include/xercesc/dom
)

add_executables(${PROJECT_NAME} ${SRCS})

add_library(HEADER_ONLY_TARGET STATIC XMLString.hpp XercesDOMParser.hpp DOM.hpp HandlerBase.hpp PlatformUtils.hpp)
set_target_properties(HEADER_ONLY_TARGET PROPERTIES LINKER_LANGUAGE CXX)

When running my solution the error I am recieving is "CMake can not determine linker language for target: fileloader"

I am relatively new to c++ and completely new to CMake so hopefully I am missing something simple, but any and all help is greatly appreciated!

EDIT: The code I am writing is on a non-internet enabled machine so I cannot copy and paste the entire code, however this is the except causing the issue:

...
#include "XMLString.hpp"
#include "XercesDOMParser.hpp"
#include "DOM.hpp"
#include "HandlerBase.hpp"
#include "PlatformUtils.hpp"

class XMLReader : public IFileReader {
public:
        XMLReader(){};
        void read(std::ifstream& file) {
        xerces::XMLPlatformUtils::Initialize();
        xercesc::XercesDOMParser* parser = new xercesc::XercesDOMParser();
        parser->setValidationScheme(xercesc::XercesDOMParser::Val_Always);
        parser->setDoNamespaces(true);

        xercesc::ErrorHandler* errHandler = (xercesc::ErrorHandler*) new xercesc::HandlerBase();
        parser->setErrorHandler(errHandler);

        std::getline(file, line);
        newFile = line.c_str();

        parser->parse(newFile);
    }
}
...

Upvotes: 2

Views: 6229

Answers (2)

Gabriel Britcher
Gabriel Britcher

Reputation: 231

Added: SET_TARGET_PROPERTIES([some name] PROPERTIES LINKER_LANGUAGE C11) to the end of my program and the error went away. After reading a million web pages I found https://kuniganotas.wordpress.com/2011/05/25/error-cmake-can-not-determine-linker-language-for-target/ and the solution was literally that simple! Hopefully this can help others with this error!

Upvotes: 3

Richard Hodges
Richard Hodges

Reputation: 69854

HEADER_ONLY_TARGET is not a keyword argument.

If you want a header-only library, use an interface library:

add_library(<name> INTERFACE [IMPORTED [GLOBAL]])

Upvotes: 4

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