Re: Unresolved external symbol errors when linking example native c++ code that uses jcc
Hi Chris, I did it on MS VS 2008, too. class JCCEnv * env still can not be resolved. Regards, András Christian Heimes írta: >Am 21.10.2010 13:39, schrieb Imre András:> > Hi list,> > > > I intend to use jcc to ease calling Java code from native code. I managed to > build and install it. Now I try to build my first test code from within MS VS > 2010 Win32 console app project. Despite setting up the libs and includes I > still get linker errors:> > This may not be related to your problem but MS VS 2010 is not supported> by any current Python release. You have to use VS 2008.> > Christian>
Re: Unresolved external symbol errors when linking example native c++ code that uses jcc
JCCEnv.h has the following: ... #ifdef _jcc_shared _DLL_IMPORT extern JCCEnv *env; _DLL_IMPORT extern DWORD VM_ENV; #else _DLL_EXPORT extern JCCEnv *env; _DLL_EXPORT extern DWORD VM_ENV; #endif ... I suspect here is the root of my linker problem. Where should this *env get resolved? Thanks, András "Imre András" írta: >Hi list,> > I intend to use jcc to ease calling Java code from native code. I managed to build and install it. Now I try to build my first test code from within MS VS 2010 Win32 console app project. Despite setting up the libs and includes I still get linker errors:> > --> Link:> C:\Program Files\Microsoft Visual Studio 10.0\VC\bin\link.exe /ERRORREPORT:PROMPT /OUT:"C:\out\app\PeldaProgram\ZipBe\bin\test\src\Debug\jcc.exe" /INCREMENTAL /NOLOGO python27.lib _jcc.lib jvm.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /MANIFEST /ManifestFile:"Debug\jcc.exe.intermediate.manifest" /MANIFESTUAC:"level='asInvoker' uiAccess='false'" /DEBUG /PDB:"C:\out\app\PeldaProgram\ZipBe\bin\test\src\Debug\jcc.pdb" /SUBSYSTEM:CONSOLE /TLBID:1 /DYNAMICBASE /NXCOMPAT /IMPLIB:"C:\out\app\PeldaProgram\ZipBe\bin\test\src\Debug\jcc.lib" /MACHINE:X86 Debug\jcc.exe.embed.manifest.res> Debug\jcc.obj> Debug\stdafx.obj> Debug\__wrap__.obj> Creating library C:\out\app\PeldaProgram\ZipBe\bin\test\src\Debug\jcc.lib and object C:\out\app\PeldaProgram\ZipBe\bin\test\src\Debug\jcc.exp> 1>jcc.obj : error LNK2001: unresolved external symbol "unsigned long VM_ENV" (?VM_ENV@@3KA)> 1>stdafx.obj : error LNK2001: unresolved external symbol "unsigned long VM_ENV" (?VM_ENV@@3KA)> 1>__wrap__.obj : error LNK2001: unresolved external symbol "unsigned long VM_ENV" (?VM_ENV@@3KA)> 1>jcc.obj : error LNK2001: unresolved external symbol "class JCCEnv * env" (?env@@3PAVJCCEnv@@A)> 1>stdafx.obj : error LNK2001: unresolved external symbol "class JCCEnv * env" (?env@@3PAVJCCEnv@@A)> 1>__wrap__.obj : error LNK2001: unresolved external symbol "class JCCEnv * env" (?env@@3PAVJCCEnv@@A)> 1>C:\out\app\PeldaProgram\ZipBe\bin\test\src\Debug\jcc.exe : fatal error LNK1120: 2 unresolved externals> 1>Done Building Project "C:\out\app\PeldaProgram\ZipBe\bin\test\jcc\jcc.vcxproj" (rebuild target(s)) -- FAILED.> > Build FAILED.> > Time Elapsed 00:00:12.60> --> > > jni.h and Native2Java.h (jcc generated from the java class I intend to use in native c++ code) is added to stdafx.h. Now I have no idea where the above symbols come from, and how should I resolve them.> > > Regards,> András> >
