Best way to compile LASlib to dynamic library

Question

I want to compile LASlib to dll. This library is stored in github. Normally, LASlib are compiled to static library. I made instruction for library compilation in Visual Studio 2015 and static library was compiled successful. But this way isn't good for me, because I want to use LASlib in developing solution, which it will be a dll file. I want compile LASlib to Windows dll.

I tried a lot of ideas, but no ideas didn't work well. I use Visual Studio 2015 and I choose configuration type as dll file. In addition, linked LASzip was added to Linker. But this steps don't make successful compilation. I put below my list error. What should I do to compile LASlib dll?

Severity    Code    Description Project File    Line    Suppression State
Error   LNK2001 unresolved external symbol "public: bool __cdecl LASindex::seek_next(class LASreader *)" (?seek_next@LASindex@@QEAA_NPEAVLASreader@@@Z) Laslib  C:\Users\Vmdev\Documents\Laslib\lasreader.obj   1   
Error   LNK2001 unresolved external symbol "public: bool __cdecl LASindex::intersect_circle(double,double,double)" (?intersect_circle@LASindex@@QEAA_NNNN@Z)    Laslib  C:\Users\Vmdev\Documents\Laslib\lasreader.obj   1   
Error   LNK2001 unresolved external symbol "public: bool __cdecl LASindex::intersect_tile(float,float,float)" (?intersect_tile@LASindex@@QEAA_NMMM@Z)   Laslib  C:\Users\Vmdev\Documents\Laslib\lasreader.obj   1   
Error   LNK2001 unresolved external symbol "public: bool __cdecl LASindex::intersect_rectangle(double,double,double,double)" (?intersect_rectangle@LASindex@@QEAA_NNNNN@Z)  Laslib  C:\Users\Vmdev\Documents\Laslib\lasreader.obj   1   
Error   LNK2001 unresolved external symbol "public: bool __cdecl LASindex::read(char const *)" (?read@LASindex@@QEAA_NPEBD@Z)   Laslib  C:\Users\Vmdev\Documents\Laslib\lasreader.obj   1   
Error   LNK2001 unresolved external symbol "public: __cdecl LASindex::~LASindex(void)" (??1LASindex@@QEAA@XZ)   Laslib  C:\Users\Vmdev\Documents\Laslib\lasreader.obj   1   
Error   LNK2001 unresolved external symbol "public: __cdecl LASindex::LASindex(void)" (??0LASindex@@QEAA@XZ)    Laslib  C:\Users\Vmdev\Documents\Laslib\lasreader.obj   1   
Error   LNK2001 unresolved external symbol "public: __cdecl LASzip::~LASzip(void)" (??1LASzip@@QEAA@XZ) Laslib  C:\Users\Vmdev\Documents\Laslib\lasreader.obj   1   
Error   LNK2001 unresolved external symbol "public: __cdecl LASzip::LASzip(void)" (??0LASzip@@QEAA@XZ)  Laslib  C:\Users\Vmdev\Documents\Laslib\lasreaderbuffered.obj   1   
Error   LNK2001 unresolved external symbol "public: bool __cdecl LASzip::setup(unsigned short *,class LASitem * *,unsigned char,unsigned short,unsigned short)" (?setup@LASzip@@QEAA_NPEAGPEAPEAVLASitem@@EGG@Z)    Laslib  C:\Users\Vmdev\Documents\Laslib\lasreaderbuffered.obj   1   
Error   LNK2001 unresolved external symbol "public: bool __cdecl LASindex::read(class ByteStreamIn *)" (?read@LASindex@@QEAA_NPEAVByteStreamIn@@@Z) Laslib  C:\Users\Vmdev\Documents\Laslib\lasreader_las.obj   1   
Error   LNK2001 unresolved external symbol "public: bool __cdecl LASreadPoint::done(void)" (?done@LASreadPoint@@QEAA_NXZ)   Laslib  C:\Users\Vmdev\Documents\Laslib\lasreader_las.obj   1   
Error   LNK2001 unresolved external symbol "public: bool __cdecl LASreadPoint::check_end(void)" (?check_end@LASreadPoint@@QEAA_NXZ) Laslib  C:\Users\Vmdev\Documents\Laslib\lasreader_las.obj   1   
Error   LNK2001 unresolved external symbol "public: bool __cdecl LASreadPoint::read(unsigned char * const *)" (?read@LASreadPoint@@QEAA_NPEBQEAE@Z) Laslib  C:\Users\Vmdev\Documents\Laslib\lasreader_las.obj   1   
Error   LNK2001 unresolved external symbol "public: bool __cdecl LASreadPoint::seek(unsigned int,unsigned int)" (?seek@LASreadPoint@@QEAA_NII@Z)    Laslib  C:\Users\Vmdev\Documents\Laslib\lasreader_las.obj   1   
Error   LNK2001 unresolved external symbol "public: bool __cdecl LASreadPoint::init(class ByteStreamIn *)" (?init@LASreadPoint@@QEAA_NPEAVByteStreamIn@@@Z) Laslib  C:\Users\Vmdev\Documents\Laslib\lasreader_las.obj   1   
Error   LNK2001 unresolved external symbol "public: bool __cdecl LASreadPoint::setup(unsigned int,class LASitem const *,class LASzip const *)" (?setup@LASreadPoint@@QEAA_NIPEBVLASitem@@PEBVLASzip@@@Z)    Laslib  C:\Users\Vmdev\Documents\Laslib\lasreader_las.obj   1   
Error   LNK2001 unresolved external symbol "public: __cdecl LASreadPoint::~LASreadPoint(void)" (??1LASreadPoint@@QEAA@XZ)   Laslib  C:\Users\Vmdev\Documents\Laslib\lasreader_las.obj   1   
Error   LNK2001 unresolved external symbol "public: __cdecl LASreadPoint::LASreadPoint(void)" (??0LASreadPoint@@QEAA@XZ)    Laslib  C:\Users\Vmdev\Documents\Laslib\lasreader_las.obj   1   
Error   LNK2001 unresolved external symbol "public: char const * __cdecl LASzip::get_error(void)const " (?get_error@LASzip@@QEBAPEBDXZ) Laslib  C:\Users\Vmdev\Documents\Laslib\lasreader_las.obj   1   
Error   LNK2001 unresolved external symbol "public: bool __cdecl LASzip::check(void)" (?check@LASzip@@QEAA_NXZ) Laslib  C:\Users\Vmdev\Documents\Laslib\lasreader_las.obj   1   
Error   LNK2001 unresolved external symbol "public: void __cdecl ArithmeticDecoder::done(void)" (?done@ArithmeticDecoder@@QEAAXXZ)  Laslib  C:\Users\Vmdev\Documents\Laslib\laswaveform13reader.obj 1   
Error   LNK2001 unresolved external symbol "public: bool __cdecl ArithmeticDecoder::init(class ByteStreamIn *,bool)" (?init@ArithmeticDecoder@@QEAA_NPEAVByteStreamIn@@_N@Z)    Laslib  C:\Users\Vmdev\Documents\Laslib\laswaveform13reader.obj 1   
Error   LNK2001 unresolved external symbol "public: __cdecl ArithmeticDecoder::~ArithmeticDecoder(void)" (??1ArithmeticDecoder@@QEAA@XZ)    Laslib  C:\Users\Vmdev\Documents\Laslib\laswaveform13reader.obj 1   
Error   LNK2001 unresolved external symbol "public: __cdecl ArithmeticDecoder::ArithmeticDecoder(void)" (??0ArithmeticDecoder@@QEAA@XZ) Laslib  C:\Users\Vmdev\Documents\Laslib\laswaveform13reader.obj 1   
Error   LNK2001 unresolved external symbol "public: int __cdecl IntegerCompressor::decompress(int,unsigned int)" (?decompress@IntegerCompressor@@QEAAHHI@Z) Laslib  C:\Users\Vmdev\Documents\Laslib\laswaveform13reader.obj 1   
Error   LNK2001 unresolved external symbol "public: void __cdecl IntegerCompressor::initDecompressor(void)" (?initDecompressor@IntegerCompressor@@QEAAXXZ)  Laslib  C:\Users\Vmdev\Documents\Laslib\laswaveform13reader.obj 1   
Error   LNK2001 unresolved external symbol "public: __cdecl IntegerCompressor::~IntegerCompressor(void)" (??1IntegerCompressor@@QEAA@XZ)    Laslib  C:\Users\Vmdev\Documents\Laslib\laswaveform13reader.obj 1   
Error   LNK2001 unresolved external symbol "public: __cdecl IntegerCompressor::IntegerCompressor(class ArithmeticDecoder *,unsigned int,unsigned int,unsigned int,unsigned int)" (??0IntegerCompressor@@QEAA@PEAVArithmeticDecoder@@IIII@Z) Laslib  C:\Users\Vmdev\Documents\Laslib\laswaveform13reader.obj 1   
Error   LNK2001 unresolved external symbol "public: void __cdecl IntegerCompressor::compress(int,int,unsigned int)" (?compress@IntegerCompressor@@QEAAXHHI@Z)   Laslib  C:\Users\Vmdev\Documents\Laslib\laswaveform13writer.obj 1   
Error   LNK2001 unresolved external symbol "public: void __cdecl IntegerCompressor::initCompressor(void)" (?initCompressor@IntegerCompressor@@QEAAXXZ)  Laslib  C:\Users\Vmdev\Documents\Laslib\laswaveform13writer.obj 1   
Error   LNK2001 unresolved external symbol "public: __cdecl IntegerCompressor::IntegerCompressor(class ArithmeticEncoder *,unsigned int,unsigned int,unsigned int,unsigned int)" (??0IntegerCompressor@@QEAA@PEAVArithmeticEncoder@@IIII@Z) Laslib  C:\Users\Vmdev\Documents\Laslib\laswaveform13writer.obj 1   
Error   LNK2001 unresolved external symbol "public: void __cdecl ArithmeticEncoder::done(void)" (?done@ArithmeticEncoder@@QEAAXXZ)  Laslib  C:\Users\Vmdev\Documents\Laslib\laswaveform13writer.obj 1   
Error   LNK2001 unresolved external symbol "public: bool __cdecl ArithmeticEncoder::init(class ByteStreamOut *)" (?init@ArithmeticEncoder@@QEAA_NPEAVByteStreamOut@@@Z) Laslib  C:\Users\Vmdev\Documents\Laslib\laswaveform13writer.obj 1   
Error   LNK2001 unresolved external symbol "public: __cdecl ArithmeticEncoder::~ArithmeticEncoder(void)" (??1ArithmeticEncoder@@QEAA@XZ)    Laslib  C:\Users\Vmdev\Documents\Laslib\laswaveform13writer.obj 1   
Error   LNK2001 unresolved external symbol "public: __cdecl ArithmeticEncoder::ArithmeticEncoder(void)" (??0ArithmeticEncoder@@QEAA@XZ) Laslib  C:\Users\Vmdev\Documents\Laslib\laswaveform13writer.obj 1   
Error   LNK2001 unresolved external symbol "public: bool __cdecl LASwritePoint::done(void)" (?done@LASwritePoint@@QEAA_NXZ) Laslib  C:\Users\Vmdev\Documents\Laslib\laswriter_las.obj   1   
Error   LNK2001 unresolved external symbol "public: bool __cdecl LASwritePoint::chunk(void)" (?chunk@LASwritePoint@@QEAA_NXZ)   Laslib  C:\Users\Vmdev\Documents\Laslib\laswriter_las.obj   1   
Error   LNK2001 unresolved external symbol "public: bool __cdecl LASwritePoint::write(unsigned char const * const *)" (?write@LASwritePoint@@QEAA_NPEBQEBE@Z)   Laslib  C:\Users\Vmdev\Documents\Laslib\laswriter_las.obj   1   
Error   LNK2001 unresolved external symbol "public: bool __cdecl LASwritePoint::init(class ByteStreamOut *)" (?init@LASwritePoint@@QEAA_NPEAVByteStreamOut@@@Z) Laslib  C:\Users\Vmdev\Documents\Laslib\laswriter_las.obj   1   
Error   LNK2001 unresolved external symbol "public: bool __cdecl LASwritePoint::setup(unsigned int,class LASitem const *,class LASzip const *)" (?setup@LASwritePoint@@QEAA_NIPEBVLASitem@@PEBVLASzip@@@Z)  Laslib  C:\Users\Vmdev\Documents\Laslib\laswriter_las.obj   1   
Error   LNK2001 unresolved external symbol "public: __cdecl LASwritePoint::~LASwritePoint(void)" (??1LASwritePoint@@QEAA@XZ)    Laslib  C:\Users\Vmdev\Documents\Laslib\laswriter_las.obj   1   
Error   LNK2001 unresolved external symbol "public: __cdecl LASwritePoint::LASwritePoint(void)" (??0LASwritePoint@@QEAA@XZ) Laslib  C:\Users\Vmdev\Documents\Laslib\laswriter_las.obj   1   
Error   LNK2001 unresolved external symbol "public: bool __cdecl LASzip::request_version(unsigned short)" (?request_version@LASzip@@QEAA_NG@Z)  Laslib  C:\Users\Vmdev\Documents\Laslib\laswriter_las.obj   1   
Error   LNK2001 unresolved external symbol "public: bool __cdecl LASzip::set_chunk_size(unsigned int)" (?set_chunk_size@LASzip@@QEAA_NI@Z)  Laslib  C:\Users\Vmdev\Documents\Laslib\laswriter_las.obj   1   
Error   LNK2001 unresolved external symbol "public: bool __cdecl LASzip::is_standard(unsigned char *,unsigned short *)" (?is_standard@LASzip@@QEAA_NPEAEPEAG@Z) Laslib  C:\Users\Vmdev\Documents\Laslib\laswriter_las.obj   1   
Error   LNK2001 unresolved external symbol "public: bool __cdecl LASzip::setup(unsigned short,class LASitem const *,unsigned short)" (?setup@LASzip@@QEAA_NGPEBVLASitem@@G@Z)   Laslib  C:\Users\Vmdev\Documents\Laslib\laswriter_las.obj   1   
Error   LNK1120 47 unresolved externals Laslib  C:\Users\Vmdev\Documents\built\Laslib\x64\Release\LASlib.dll    1

EDIT

I added preprocesor definitions, which mentioned in comments, to mydef.hpp file This code is listed below:

#ifdef LASLIB_DLL
#define LASLIB_DLL __declspec(dllexport)
#else
#define LASLIB_DLL __declspec(dllimport)
#endif

and every class for export looks like, for example:

class LASLIB_DLL LASreader
{
public:
  LASheader header;
  LASpoint point;

  I64 npoints;
  I64 p_count;
...
}

but I have had many errors:

Severity    Code    Description Project File    Line    Suppression State
    Error   LNK1120 54 unresolved externals LasTools_lib    C:\Users\Vmdev\Documents\built\LasTools_lib\x64\Release\LASlib.dll  1   
    Error   LNK2001 unresolved external symbol "public: bool __cdecl ArithmeticDecoder::init(class ByteStreamIn *,bool)" (?init@ArithmeticDecoder@@QEAA_NPEAVByteStreamIn@@_N@Z)    LasTools_lib    C:\Users\Vmdev\Documents\LasTools_lib\laswaveform13reader.obj   1   
    Error   LNK2001 unresolved external symbol "public: bool __cdecl ArithmeticEncoder::init(class ByteStreamOut *)" (?init@ArithmeticEncoder@@QEAA_NPEAVByteStreamOut@@@Z) LasTools_lib    C:\Users\Vmdev\Documents\LasTools_lib\laswaveform13writer.obj   1   
    Error   LNK2001 unresolved external symbol "public: bool __cdecl LASindex::intersect_circle(double,double,double)" (?intersect_circle@LASindex@@QEAA_NNNN@Z)    LasTools_lib    C:\Users\Vmdev\Documents\LasTools_lib\lasreader.obj 1   
    Error   LNK2001 unresolved external symbol "public: bool __cdecl LASindex::intersect_rectangle(double,double,double,double)" (?intersect_rectangle@LASindex@@QEAA_NNNNN@Z)  LasTools_lib    C:\Users\Vmdev\Documents\LasTools_lib\lasreader.obj 1   
    Error   LNK2001 unresolved external symbol "public: bool __cdecl LASindex::intersect_tile(float,float,float)" (?intersect_tile@LASindex@@QEAA_NMMM@Z)   LasTools_lib    C:\Users\Vmdev\Documents\LasTools_lib\lasreader.obj 1   
    Error   LNK2001 unresolved external symbol "public: bool __cdecl LASindex::read(char const *)" (?read@LASindex@@QEAA_NPEBD@Z)   LasTools_lib    C:\Users\Vmdev\Documents\LasTools_lib\lasreader.obj 1   
    Error   LNK2001 unresolved external symbol "public: bool __cdecl LASindex::read(class ByteStreamIn *)" (?read@LASindex@@QEAA_NPEAVByteStreamIn@@@Z) LasTools_lib    C:\Users\Vmdev\Documents\LasTools_lib\lasreader_las.obj 1   
    Error   LNK2001 unresolved external symbol "public: bool __cdecl LASindex::seek_next(class LASreader *)" (?seek_next@LASindex@@QEAA_NPEAVLASreader@@@Z) LasTools_lib    C:\Users\Vmdev\Documents\LasTools_lib\lasreader.obj 1   
    Error   LNK2001 unresolved external symbol "public: bool __cdecl LASreadPoint::check_end(void)" (?check_end@LASreadPoint@@QEAA_NXZ) LasTools_lib    C:\Users\Vmdev\Documents\LasTools_lib\lasreader_las.obj 1   
    Error   LNK2001 unresolved external symbol "public: bool __cdecl LASreadPoint::done(void)" (?done@LASreadPoint@@QEAA_NXZ)   LasTools_lib    C:\Users\Vmdev\Documents\LasTools_lib\lasreader_las.obj 1   
    Error   LNK2001 unresolved external symbol "public: bool __cdecl LASreadPoint::init(class ByteStreamIn *)" (?init@LASreadPoint@@QEAA_NPEAVByteStreamIn@@@Z) LasTools_lib    C:\Users\Vmdev\Documents\LasTools_lib\lasreader_las.obj 1   
    Error   LNK2001 unresolved external symbol "public: bool __cdecl LASreadPoint::read(unsigned char * const *)" (?read@LASreadPoint@@QEAA_NPEBQEAE@Z) LasTools_lib    C:\Users\Vmdev\Documents\LasTools_lib\lasreader_las.obj 1   
    Error   LNK2001 unresolved external symbol "public: bool __cdecl LASreadPoint::seek(unsigned int,unsigned int)" (?seek@LASreadPoint@@QEAA_NII@Z)    LasTools_lib    C:\Users\Vmdev\Documents\LasTools_lib\lasreader_las.obj 1   
    Error   LNK2001 unresolved external symbol "public: bool __cdecl LASreadPoint::setup(unsigned int,class LASitem const *,class LASzip const *)" (?setup@LASreadPoint@@QEAA_NIPEBVLASitem@@PEBVLASzip@@@Z)    LasTools_lib    C:\Users\Vmdev\Documents\LasTools_lib\lasreader_las.obj 1   
    Error   LNK2001 unresolved external symbol "public: bool __cdecl LASwritePoint::chunk(void)" (?chunk@LASwritePoint@@QEAA_NXZ)   LasTools_lib    C:\Users\Vmdev\Documents\LasTools_lib\laswriter_las.obj 1   
    Error   LNK2001 unresolved external symbol "public: bool __cdecl LASwritePoint::done(void)" (?done@LASwritePoint@@QEAA_NXZ) LasTools_lib    C:\Users\Vmdev\Documents\LasTools_lib\laswriter_las.obj 1   
    Error   LNK2001 unresolved external symbol "public: bool __cdecl LASwritePoint::init(class ByteStreamOut *)" (?init@LASwritePoint@@QEAA_NPEAVByteStreamOut@@@Z) LasTools_lib    C:\Users\Vmdev\Documents\LasTools_lib\laswriter_las.obj 1   
    Error   LNK2001 unresolved external symbol "public: bool __cdecl LASwritePoint::setup(unsigned int,class LASitem const *,class LASzip const *)" (?setup@LASwritePoint@@QEAA_NIPEBVLASitem@@PEBVLASzip@@@Z)  LasTools_lib    C:\Users\Vmdev\Documents\LasTools_lib\laswriter_las.obj 1   
    Error   LNK2001 unresolved external symbol "public: bool __cdecl LASwritePoint::write(unsigned char const * const *)" (?write@LASwritePoint@@QEAA_NPEBQEBE@Z)   LasTools_lib    C:\Users\Vmdev\Documents\LasTools_lib\laswriter_las.obj 1   
    Error   LNK2001 unresolved external symbol "public: bool __cdecl LASzip::check(void)" (?check@LASzip@@QEAA_NXZ) LasTools_lib    C:\Users\Vmdev\Documents\LasTools_lib\lasreader_las.obj 1   
    Error   LNK2001 unresolved external symbol "public: bool __cdecl LASzip::is_standard(unsigned char *,unsigned short *)" (?is_standard@LASzip@@QEAA_NPEAEPEAG@Z) LasTools_lib    C:\Users\Vmdev\Documents\LasTools_lib\laswriter_las.obj 1   
    Error   LNK2001 unresolved external symbol "public: bool __cdecl LASzip::request_version(unsigned short)" (?request_version@LASzip@@QEAA_NG@Z)  LasTools_lib    C:\Users\Vmdev\Documents\LasTools_lib\laswriter_las.obj 1   
    Error   LNK2001 unresolved external symbol "public: bool __cdecl LASzip::setup(unsigned short *,class LASitem * *,unsigned char,unsigned short,unsigned short)" (?setup@LASzip@@QEAA_NPEAGPEAPEAVLASitem@@EGG@Z)    LasTools_lib    C:\Users\Vmdev\Documents\LasTools_lib\lasreaderbuffered.obj 1   
    Error   LNK2001 unresolved external symbol "public: bool __cdecl LASzip::setup(unsigned short,class LASitem const *,unsigned short)" (?setup@LASzip@@QEAA_NGPEBVLASitem@@G@Z)   LasTools_lib    C:\Users\Vmdev\Documents\LasTools_lib\laswriter_las.obj 1   
    Error   LNK2001 unresolved external symbol "public: bool __cdecl LASzip::set_chunk_size(unsigned int)" (?set_chunk_size@LASzip@@QEAA_NI@Z)  LasTools_lib    C:\Users\Vmdev\Documents\LasTools_lib\laswriter_las.obj 1   
    Error   LNK2001 unresolved external symbol "public: char const * __cdecl LASzip::get_error(void)const " (?get_error@LASzip@@QEBAPEBDXZ) LasTools_lib    C:\Users\Vmdev\Documents\LasTools_lib\lasreader_las.obj 1   
    Error   LNK2001 unresolved external symbol "public: int __cdecl IntegerCompressor::decompress(int,unsigned int)" (?decompress@IntegerCompressor@@QEAAHHI@Z) LasTools_lib    C:\Users\Vmdev\Documents\LasTools_lib\laswaveform13reader.obj   1   
    Error   LNK2001 unresolved external symbol "public: void __cdecl ArithmeticDecoder::done(void)" (?done@ArithmeticDecoder@@QEAAXXZ)  LasTools_lib    C:\Users\Vmdev\Documents\LasTools_lib\laswaveform13reader.obj   1   
    Error   LNK2001 unresolved external symbol "public: void __cdecl ArithmeticEncoder::done(void)" (?done@ArithmeticEncoder@@QEAAXXZ)  LasTools_lib    C:\Users\Vmdev\Documents\LasTools_lib\laswaveform13writer.obj   1   
    Error   LNK2001 unresolved external symbol "public: void __cdecl IntegerCompressor::compress(int,int,unsigned int)" (?compress@IntegerCompressor@@QEAAXHHI@Z)   LasTools_lib    C:\Users\Vmdev\Documents\LasTools_lib\laswaveform13writer.obj   1   
    Error   LNK2001 unresolved external symbol "public: void __cdecl IntegerCompressor::initCompressor(void)" (?initCompressor@IntegerCompressor@@QEAAXXZ)  LasTools_lib    C:\Users\Vmdev\Documents\LasTools_lib\laswaveform13writer.obj   1   
    Error   LNK2001 unresolved external symbol "public: void __cdecl IntegerCompressor::initDecompressor(void)" (?initDecompressor@IntegerCompressor@@QEAAXXZ)  LasTools_lib    C:\Users\Vmdev\Documents\LasTools_lib\laswaveform13reader.obj   1   
    Error   LNK2001 unresolved external symbol "public: __cdecl ArithmeticDecoder::ArithmeticDecoder(void)" (??0ArithmeticDecoder@@QEAA@XZ) LasTools_lib    C:\Users\Vmdev\Documents\LasTools_lib\laswaveform13reader.obj   1   
    Error   LNK2001 unresolved external symbol "public: __cdecl ArithmeticDecoder::~ArithmeticDecoder(void)" (??1ArithmeticDecoder@@QEAA@XZ)    LasTools_lib    C:\Users\Vmdev\Documents\LasTools_lib\laswaveform13reader.obj   1   
    Error   LNK2001 unresolved external symbol "public: __cdecl ArithmeticEncoder::ArithmeticEncoder(void)" (??0ArithmeticEncoder@@QEAA@XZ) LasTools_lib    C:\Users\Vmdev\Documents\LasTools_lib\laswaveform13writer.obj   1   
    Error   LNK2001 unresolved external symbol "public: __cdecl ArithmeticEncoder::~ArithmeticEncoder(void)" (??1ArithmeticEncoder@@QEAA@XZ)    LasTools_lib    C:\Users\Vmdev\Documents\LasTools_lib\laswaveform13writer.obj   1   
    Error   LNK2001 unresolved external symbol "public: __cdecl IntegerCompressor::IntegerCompressor(class ArithmeticDecoder *,unsigned int,unsigned int,unsigned int,unsigned int)" (??0IntegerCompressor@@QEAA@PEAVArithmeticDecoder@@IIII@Z) LasTools_lib    C:\Users\Vmdev\Documents\LasTools_lib\laswaveform13reader.obj   1   
    Error   LNK2001 unresolved external symbol "public: __cdecl IntegerCompressor::IntegerCompressor(class ArithmeticEncoder *,unsigned int,unsigned int,unsigned int,unsigned int)" (??0IntegerCompressor@@QEAA@PEAVArithmeticEncoder@@IIII@Z) LasTools_lib    C:\Users\Vmdev\Documents\LasTools_lib\laswaveform13writer.obj   1   
    Error   LNK2001 unresolved external symbol "public: __cdecl IntegerCompressor::~IntegerCompressor(void)" (??1IntegerCompressor@@QEAA@XZ)    LasTools_lib    C:\Users\Vmdev\Documents\LasTools_lib\laswaveform13reader.obj   1   
    Error   LNK2001 unresolved external symbol "public: __cdecl LASindex::LASindex(void)" (??0LASindex@@QEAA@XZ)    LasTools_lib    C:\Users\Vmdev\Documents\LasTools_lib\lasreader.obj 1   
    Error   LNK2001 unresolved external symbol "public: __cdecl LASindex::~LASindex(void)" (??1LASindex@@QEAA@XZ)   LasTools_lib    C:\Users\Vmdev\Documents\LasTools_lib\lasreader.obj 1   
    Error   LNK2001 unresolved external symbol "public: __cdecl LASreadPoint::LASreadPoint(void)" (??0LASreadPoint@@QEAA@XZ)    LasTools_lib    C:\Users\Vmdev\Documents\LasTools_lib\lasreader_las.obj 1   
    Error   LNK2001 unresolved external symbol "public: __cdecl LASreadPoint::~LASreadPoint(void)" (??1LASreadPoint@@QEAA@XZ)   LasTools_lib    C:\Users\Vmdev\Documents\LasTools_lib\lasreader_las.obj 1   
    Error   LNK2001 unresolved external symbol "public: __cdecl LASwritePoint::LASwritePoint(void)" (??0LASwritePoint@@QEAA@XZ) LasTools_lib    C:\Users\Vmdev\Documents\LasTools_lib\laswriter_las.obj 1   
    Error   LNK2001 unresolved external symbol "public: __cdecl LASwritePoint::~LASwritePoint(void)" (??1LASwritePoint@@QEAA@XZ)    LasTools_lib    C:\Users\Vmdev\Documents\LasTools_lib\laswriter_las.obj 1   
    Error   LNK2001 unresolved external symbol "public: __cdecl LASzip::LASzip(void)" (??0LASzip@@QEAA@XZ)  LasTools_lib    C:\Users\Vmdev\Documents\LasTools_lib\lasreaderbuffered.obj 1   
    Error   LNK2001 unresolved external symbol "public: __cdecl LASzip::~LASzip(void)" (??1LASzip@@QEAA@XZ) LasTools_lib    C:\Users\Vmdev\Documents\LasTools_lib\lasreader.obj 1   
    Error   LNK2001 unresolved external symbol "__declspec(dllimport) const LASreader::`vftable'" (__imp_??_7LASreader@@6B@)    LasTools_lib    C:\Users\Vmdev\Documents\LasTools_lib\lasreader.obj 1   
    Error   LNK2001 unresolved external symbol "__declspec(dllimport) public: bool __cdecl LASreader::read_point(void)" (__imp_?read_point@LASreader@@QEAA_NXZ) LasTools_lib    C:\Users\Vmdev\Documents\LasTools_lib\lasreaderbuffered.obj 1   
    Error   LNK2001 unresolved external symbol "__declspec(dllimport) public: class LASindex * __cdecl LASreader::get_index(void)const " (__imp_?get_index@LASreader@@QEBAPEAVLASindex@@XZ) LasTools_lib    C:\Users\Vmdev\Documents\LasTools_lib\lasreaderpipeon.obj   1   
    Error   LNK2001 unresolved external symbol "__declspec(dllimport) public: virtual bool __cdecl LASreader::has_layers(void)const " (__imp_?has_layers@LASreader@@UEBA_NXZ)   LasTools_lib    C:\Users\Vmdev\Documents\LasTools_lib\lasreaderbuffered.obj 1   
    Error   LNK2001 unresolved external symbol "__declspec(dllimport) public: virtual void __cdecl LASwriter::update_inventory(class LASpoint const *)" (__imp_?update_inventory@LASwriter@@UEAAXPEBVLASpoint@@@Z)  LasTools_lib    C:\Users\Vmdev\Documents\LasTools_lib\laswritercompatible.obj   1   
    Error   LNK2001 unresolved external symbol "__declspec(dllimport) public: virtual __cdecl LASwriter::~LASwriter(void)" (__imp_??1LASwriter@@UEAA@XZ)    LasTools_lib    C:\Users\Vmdev\Documents\LasTools_lib\laswritercompatible.obj   1   
    Error   LNK2001 unresolved external symbol "__declspec(dllimport) public: __cdecl LASwriter::LASwriter(void)" (__imp_??0LASwriter@@QEAA@XZ) LasTools_lib    C:\Users\Vmdev\Documents\LasTools_lib\laswritercompatible.obj   1

I also tried compiling using author's code for expoting dll:

#define _WIN32 //I added this line

#ifndef _WIN32
#define LASLIB_DLL
#else  // _WIN32
#ifdef COMPILE_AS_DLL
#define LASLIB_DLL __declspec(dllexport)
#elif USE_AS_DLL
#define LASLIB_DLL __declspec(dllimport)
#else
#define LASLIB_DLL 
#endif
#endif // _WIN32

but also don't work.

Do you have any ideas?

You will have to modify the headers to export all the classes you want visible to clients in the dll. An example for that is here: http://stackoverflow.com/a/6840659/487892 Being that this is supposed to compile for vc6 I would expect the porting task to be difficult in a modern compiler unless you are an expert. — drescherjm, Mar 02 '17 at 13:40
I added preprocesor definition #define LASLIB_DLL __declspec(dllexport). And it added for interesting classes. But I still have the same errors. — Lisek, Mar 02 '17 at 14:23
Is `LASLIB_DLL` defined as `__declspec(dllimport)` for the client applications? The MACRO needs to switch between the two depending on if you are building or using the dll. — drescherjm, Mar 02 '17 at 14:26
I edited my ask including comments suggestion, but cannot compile dll — Lisek, Mar 02 '17 at 15:59
Did you add "COMPILE_AS_DLL` to your preprocessor definitions for building the dll. Don't add it for using the dll. — drescherjm, Mar 02 '17 at 18:02

Best way to compile LASlib to dynamic library

0 Answers0