Question

我尝试创建自己的库以在C / C ++的其他项目中使用它。我的静态库使用xercesc库。 Eclipse尝试使用gcc而非g ++编译xercesc包含的lib。如果我尝试编译代码，则会出现以下错误：

    Info: Internal Builder is used for build
g++ "-IC:\\00_Projects\\Ladeplanberechnung\\LadeplanLib\\lib\\include" -O0 -g3 -Wall -c -fmessage-length=0 -o "src\\viterbi\\ViterbiAlgorithm.o" "..\\src\\viterbi\\ViterbiAlgorithm.cpp" 
In file included from ..\src\viterbi\LocalSuitability.h:11:0,
                 from ..\src\viterbi\ViterbiAlgorithm.h:8,
                 from ..\src\viterbi\ViterbiAlgorithm.cpp:8:
gcc "-IC:\\00_Projects\\Ladeplanberechnung\\LadeplanLib\\lib\\include" -O0 -g3 -Wall -c -fmessage-length=0 -o "lib\\include\\xercesc\\util\\RefArrayVectorOf.o" "..\\lib\\include\\xercesc\\util\\RefArrayVectorOf.c" 
    ..\lib\include\xercesc\util\RefArrayVectorOf.c:25:1: error: unknown type name 'XERCES_CPP_NAMESPACE_BEGIN'
     XERCES_CPP_NAMESPACE_BEGIN
     ^~~~~~~~~~~~~~~~~~~~~~~~~~
    ..\lib\include\xercesc\util\RefArrayVectorOf.c:30:10: error: expected '=', ',', ';', 'asm' or '__attribute__' before '<' token
     template <class TElem>
              ^
    ..\lib\include\xercesc\util\RefArrayVectorOf.c:39:10: error: expected '=', ',', ';', 'asm' or '__attribute__' before '<' token
     template <class TElem> RefArrayVectorOf<TElem>::~RefArrayVectorOf()
              ^
    ..\lib\include\xercesc\util\RefArrayVectorOf.c:49:10: error: expected '=', ',', ';', 'asm' or '__attribute__' before '<' token
     template <class TElem> void
              ^
    ..\lib\include\xercesc\util\RefArrayVectorOf.c:61:10: error: expected '=', ',', ';', 'asm' or '__attribute__' before '<' token
     template <class TElem> void RefArrayVectorOf<TElem>::removeAllElements()
              ^
    ..\lib\include\xercesc\util\RefArrayVectorOf.c:74:10: error: expected '=', ',', ';', 'asm' or '__attribute__' before '<' token
     template <class TElem> void RefArrayVectorOf<TElem>::
              ^
    ..\lib\include\xercesc\util\RefArrayVectorOf.c:102:10: error: expected '=', ',', ';', 'asm' or '__attribute__' before '<' token
     template <class TElem> void RefArrayVectorOf<TElem>::removeLastElement()
              ^
    ..\lib\include\xercesc\util\RefArrayVectorOf.c:112:10: error: expected '=', ',', ';', 'asm' or '__attribute__' before '<' token
     template <class TElem> void RefArrayVectorOf<TElem>::cleanup()
              ^
    ..\lib\include\xercesc\util\RefArrayVectorOf.c:122:1: error: expected '=', ',', ';', 'asm' or '__attribute__' at end of input
     XERCES_CPP_NAMESPACE_END
     ^~~~~~~~~~~~~~~~~~~~~~~~

为什么Eclipse会尝试编译xercesc？我可以强制Eclipse用g ++编译项目吗？

Answer 1

您需要明确告诉gcc您的源代码为C++，因为它将假定以.c结尾的文件是用C编写的。将-x c++添加到命令中，它应该可以工作：

gcc "-IC:\\00_Projects\\Ladeplanberechnung\\LadeplanLib\\lib\\include" -O0 -g3 -Wall -c -fmessage-length=0 -x c++ -o "lib\\include\\xercesc\\util\\RefArrayVectorOf.o" "..\\lib\\include\\xercesc\\util\\RefArrayVectorOf.c"

如何在我自己的staticLib中使用staticLib？

1 个答案: