Undefined Reference (Compiling Source Error)

[=sinister=]

So I downloaded the source, and I'm trying to get a basic autoit application to run in C++, and I tried to compile application.cpp right off the bat, and I got a bunch of Undefined Reference errors when I tried to compile it.

Am I missing a header file or something?

[Richard Robertson]

I'm really not sure what you mean here. Do you mean you tried to modify the old source and make it into a program on it's own?

Edited October 3, 2008 by Richard Robertson

[=sinister=]

Nope, I did not modify the source at all, I just downloaded it and tried to compile it.

[cppman]

Nope, I did not modify the source at all, I just downloaded it and tried to compile it.

If you aren't using Visual Studio, then chances are the linker isn't linking to the Windows API libraries (or even the other C++ files?). Even if you are using Visual Studio, check if the libraries are being linked. Edited October 4, 2008 by cppman

[=sinister=]

I am using dev c++, what do you suggest I do?

[cppman]

Can you post the unresolved symbol errors?

[=sinister=]

Here is the compile log:

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Compiler: Default compiler
Executing  g++.exe...
g++.exe "C:\Documents and Settings\joe\My Documents\Source\src\application.cpp" -o "C:\Documents and Settings\joe\My Documents\Source\src\application.exe"  -I"C:\Dev-Cpp\lib\gcc\mingw32\3.4.2\include"  -I"C:\Dev-Cpp\include\c++\3.4.2\backward"  -I"C:\Dev-Cpp\include\c++\3.4.2\mingw32"  -I"C:\Dev-Cpp\include\c++\3.4.2"  -I"C:\Dev-Cpp\include"   -L"C:\Dev-Cpp\lib" 
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x10):application.cpp: undefined reference to `AString::AString()'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x16):application.cpp: undefined reference to `g_hWnd'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x20):application.cpp: undefined reference to `g_hWndEdit'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x2a):application.cpp: undefined reference to `g_hWndSplash'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x34):application.cpp: undefined reference to `g_hSplashBitmap'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x3e):application.cpp: undefined reference to `g_hWndProgress'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x48):application.cpp: undefined reference to `g_hWndProgBar'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x52):application.cpp: undefined reference to `g_hWndProgLblA'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x5c):application.cpp: undefined reference to `g_hWndProgLblB'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x66):application.cpp: undefined reference to `g_bTrayIcon'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x6d):application.cpp: undefined reference to `g_bTrayIconInitial'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x85):application.cpp: undefined reference to `g_bScriptPaused'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x8c):application.cpp: undefined reference to `g_bBreakEnabled'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x93):application.cpp: undefined reference to `g_bTrayIconDebug'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x9a):application.cpp: undefined reference to `g_bStdOut'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0xa1):application.cpp: undefined reference to `g_bTrayExitClicked'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0xa8):application.cpp: undefined reference to `g_bKillWorkerThreads'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0xaf):application.cpp: undefined reference to `g_HotKeyNext'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0xd4):application.cpp: undefined reference to `AString::AString()'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0xda):application.cpp: undefined reference to `g_hWnd'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0xe4):application.cpp: undefined reference to `g_hWndEdit'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0xee):application.cpp: undefined reference to `g_hWndSplash'

C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0xf8):application.cpp: undefined reference to `g_hSplashBitmap'

C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x102):application.cpp: undefined reference to `g_hWndProgress'

C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x10c):application.cpp: undefined reference to `g_hWndProgBar'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x116):application.cpp: undefined reference to `g_hWndProgLblA'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x120):application.cpp: undefined reference to `g_hWndProgLblB'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x12a):application.cpp: undefined reference to `g_bTrayIcon'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x131):application.cpp: undefined reference to `g_bTrayIconInitial'

C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x149):application.cpp: undefined reference to `g_bScriptPaused'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x150):application.cpp: undefined reference to `g_bBreakEnabled'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x157):application.cpp: undefined reference to `g_bTrayIconDebug'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x15e):application.cpp: undefined reference to `g_bStdOut'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x165):application.cpp: undefined reference to `g_bTrayExitClicked'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x16c):application.cpp: undefined reference to `g_bKillWorkerThreads'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x173):application.cpp: undefined reference to `g_HotKeyNext'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x329):application.cpp: undefined reference to `g_oScriptFile'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x32e):application.cpp: undefined reference to `AutoIt_ScriptFile::AddLine(int, char const*, int)'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x341):application.cpp: undefined reference to `g_oScriptFile'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x346):application.cpp: undefined reference to `AutoIt_ScriptFile::LoadScript(char*)'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x350):application.cpp: undefined reference to `g_nExitCode'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x38f):application.cpp: undefined reference to `g_oScriptFile'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x394):application.cpp: undefined reference to `AutoIt_ScriptFile::PrepareScript()'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x3a5):application.cpp: undefined reference to `g_oScript'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x3aa):application.cpp: undefined reference to `AutoIt_Script::InitScript(char*)'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x3b5):application.cpp: undefined reference to `g_oScriptFile'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x3ba):application.cpp: undefined reference to `AutoIt_ScriptFile::UnloadScript()'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x3c0):application.cpp: undefined reference to `g_nExitCode'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x3fc):application.cpp: undefined reference to `g_bTrayIconInitial'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x41b):application.cpp: undefined reference to `g_oScript'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x420):application.cpp: undefined reference to `AutoIt_Script::Execute(int)'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x427):application.cpp: undefined reference to `g_oScriptFile'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x42c):application.cpp: undefined reference to `AutoIt_ScriptFile::UnloadScript()'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x483):application.cpp: undefined reference to `g_hInstance'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x4a0):application.cpp: undefined reference to `g_hInstance'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x4b5):application.cpp: undefined reference to `g_oVersion'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x4c5):application.cpp: undefined reference to `g_oVersion'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x4f7):application.cpp: undefined reference to `Util_LoadIcon(int, int, int, int)'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x523):application.cpp: undefined reference to `Util_LoadIcon(int, int, int, int)'

C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x547):application.cpp: undefined reference to `g_hInstance'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x5a3):application.cpp: undefined reference to `g_hInstance'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x605):application.cpp: undefined reference to `g_hWnd'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x612):application.cpp: undefined reference to `g_hInstance'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x623):application.cpp: undefined reference to `g_hWnd'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x673):application.cpp: undefined reference to `g_hWndEdit'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x680):application.cpp: undefined reference to `g_hWnd'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x698):application.cpp: undefined reference to `g_hWnd'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x727):application.cpp: undefined reference to `g_oCmdLine'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x748):application.cpp: undefined reference to `Variant::operator=(char const*)'

C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x75e):application.cpp: undefined reference to `AString::AString(char const*)'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x789):application.cpp: undefined reference to `g_oVarTable'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x798):application.cpp: undefined reference to `VariableTable::Assign(AString, Variant const&, bool, int)'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x7f3):application.cpp: undefined reference to `Variant::operator=(int)'

C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x809):application.cpp: undefined reference to `AString::AString(char const*)'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x834):application.cpp: undefined reference to `g_oVarTable'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x843):application.cpp: undefined reference to `VariableTable::Assign(AString, Variant const&, bool, int)'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x89e):application.cpp: undefined reference to `AString::AString(char const*)'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x8cb):application.cpp: undefined reference to `g_oVarTable'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x8da):application.cpp: undefined reference to `VariableTable::GetRef(AString, Variant**, bool&, int)'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x95e):application.cpp: undefined reference to `g_oCmdLine'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x98e):application.cpp: undefined reference to `Variant::ArraySubscriptClear()'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x9a4):application.cpp: undefined reference to `Variant::ArraySubscriptSetNext(int)'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x9b2):application.cpp: undefined reference to `Variant::ArrayDim()'

C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x9c0):application.cpp: undefined reference to `Variant::ArraySubscriptClear()'

C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x9d6):application.cpp: undefined reference to `Variant::ArraySubscriptSetNext(int)'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x9ec):application.cpp: undefined reference to `Variant::ArrayGetRef(bool)'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0xa08):application.cpp: undefined reference to `Variant::operator=(int)'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0xa20):application.cpp: undefined reference to `Variant::~Variant()'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0xa36):application.cpp: undefined reference to `g_oCmdLine'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0xa45):application.cpp: undefined reference to `CmdLine::GetNextParam(char*)'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0xa9c):application.cpp: undefined reference to `g_oCmdLine'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0xaa1):application.cpp: undefined reference to `CmdLine::GetNextParam(char*)'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0xab9):application.cpp: undefined reference to `AString::operator=(char const*)'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0xac7):application.cpp: undefined reference to `Variant::ArraySubscriptClear()'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0xadd):application.cpp: undefined reference to `Variant::ArraySubscriptSetNext(int)'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0xaeb):application.cpp: undefined reference to `Variant::ArrayDim()'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0xaf9):application.cpp: undefined reference to `Variant::ArraySubscriptClear()'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0xb0f):application.cpp: undefined reference to `Variant::ArraySubscriptSetNext(int)'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0xb25):application.cpp: undefined reference to `Variant::ArrayGetRef(bool)'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0xb41):application.cpp: undefined reference to `Variant::operator=(int)'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0xb59):application.cpp: undefined reference to `Variant::~Variant()'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0xb8c):application.cpp: undefined reference to `g_bStdOut'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0xba8):application.cpp: undefined reference to `Variant::ArraySubscriptClear()'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0xbbe):application.cpp: undefined reference to `Variant::ArraySubscriptSetNext(int)'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0xbcc):application.cpp: undefined reference to `Variant::ArrayDim()'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0xbda):application.cpp: undefined reference to `Variant::ArraySubscriptClear()'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0xbf0):application.cpp: undefined reference to `Variant::ArraySubscriptSetNext(int)'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0xc06):application.cpp: undefined reference to `Variant::ArrayGetRef(bool)'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0xc22):application.cpp: undefined reference to `Variant::operator=(int)'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0xc3a):application.cpp: undefined reference to `Variant::~Variant()'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0xc58):application.cpp: undefined reference to `g_oCmdLine'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0xc67):application.cpp: undefined reference to `CmdLine::GetNextParam(char*)'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0xc97):application.cpp: undefined reference to `Variant::ArraySubscriptClear()'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0xcaf):application.cpp: undefined reference to `Variant::ArraySubscriptSetNext(int)'

C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0xcbd):application.cpp: undefined reference to `Variant::ArrayDim()'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0xccb):application.cpp: undefined reference to `Variant::ArraySubscriptClear()'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0xce1):application.cpp: undefined reference to `Variant::ArraySubscriptSetNext(int)'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0xcf7):application.cpp: undefined reference to `Variant::ArrayGetRef(bool)'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0xd16):application.cpp: undefined reference to `Variant::operator=(int)'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0xd31):application.cpp: undefined reference to `g_oCmdLine'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0xd40):application.cpp: undefined reference to `CmdLine::GetNextParam(char*)'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0xd62):application.cpp: undefined reference to `Variant::ArraySubscriptClear()'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0xd7a):application.cpp: undefined reference to `Variant::ArraySubscriptSetNext(int)'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0xd90):application.cpp: undefined reference to `Variant::ArrayGetRef(bool)'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0xdae):application.cpp: undefined reference to `Variant::operator=(char const*)'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0xdd7):application.cpp: undefined reference to `Variant::~Variant()'

C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0xe13):application.cpp: undefined reference to `Variant::~Variant()'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0xe53):application.cpp: undefined reference to `g_oApplication'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0xe6b):application.cpp: undefined reference to `g_hWnd'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0xe73):application.cpp: undefined reference to `g_hWnd'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0xfc2):application.cpp: undefined reference to `g_bTrayExitClicked'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0xfc9):application.cpp: undefined reference to `g_bKillWorkerThreads'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x1017):application.cpp: undefined reference to `g_hWndEdit'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x1062):application.cpp: undefined reference to `g_hWndEdit'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x10b2):application.cpp: undefined reference to `g_bScriptPaused'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x10ba):application.cpp: undefined reference to `g_HotKeyNext'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x10c6):application.cpp: undefined reference to `g_HotKeyQueue'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x10cc):application.cpp: undefined reference to `g_HotKeyNext'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x10d2):application.cpp: undefined reference to `g_HotKeyNext'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x10db):application.cpp: undefined reference to `g_HotKeyNext'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x10f3):application.cpp: undefined reference to `g_bTrayIcon'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x115e):application.cpp: undefined reference to `g_bTrayIcon'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x1186):application.cpp: undefined reference to `g_bScriptPaused'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x1277):application.cpp: undefined reference to `g_bTrayExitClicked'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x1287):application.cpp: undefined reference to `g_bScriptPaused'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x12c5):application.cpp: undefined reference to `g_bTrayIcon'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x12d2):application.cpp: undefined reference to `g_bTrayIcon'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x12df):application.cpp: undefined reference to `g_hWnd'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x1388):application.cpp: undefined reference to `AString::AString(int)'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x138e):application.cpp: undefined reference to `g_bTrayIcon'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x13b0):application.cpp: undefined reference to `g_hWnd'

C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x13c8):application.cpp: undefined reference to `g_bScriptPaused'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x13ec):application.cpp: undefined reference to `g_hInstance'

C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x142c):application.cpp: undefined reference to `AString::operator=(char const*)'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x1432):application.cpp: undefined reference to `g_bTrayIconDebug'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x144b):application.cpp: undefined reference to `AString::operator+=(char const*)'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x1466):application.cpp: undefined reference to `AString::operator+=(char const*)'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x1472):application.cpp: undefined reference to `g_oScript'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x148e):application.cpp: undefined reference to `g_oScriptFile'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x149d):application.cpp: undefined reference to `AutoIt_ScriptFile::GetLine(int)'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x14b6):application.cpp: undefined reference to `g_oScriptFile'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x14bb):application.cpp: undefined reference to `AutoIt_ScriptFile::GetIncludeID(int)'

C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x14c6):application.cpp: undefined reference to `g_oScriptFile'

C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x14cb):application.cpp: undefined reference to `AutoIt_ScriptFile::GetIncludeFileName(int)'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x14dd):application.cpp: undefined reference to `AString::operator+=(char const*)'

C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x14ee):application.cpp: undefined reference to `g_oScriptFile'

C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x14f3):application.cpp: undefined reference to `AutoIt_ScriptFile::GetAutLineNumber(int)'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x1525):application.cpp: undefined reference to `AString::operator+=(char const*)'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x1536):application.cpp: undefined reference to `g_oScriptFile'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x153b):application.cpp: undefined reference to `AutoIt_ScriptFile::GetLine(int)'

C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x154d):application.cpp: undefined reference to `AString::operator+=(char const*)'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x157f):application.cpp: undefined reference to `Util_Strncpy(char*, char const*, int)'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x162c):application.cpp: undefined reference to `g_bTrayIcon'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x1637):application.cpp: undefined reference to `g_bTrayIcon'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x1644):application.cpp: undefined reference to `g_hWnd'

C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x168f):application.cpp: undefined reference to `g_bBreakEnabled'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x169d):application.cpp: undefined reference to `g_bScriptPaused'
C:\DOCUME~1\joe\LOCALS~1\Temp/ccUnbaaa.o(.text+0x16ab):application.cpp: undefined reference to `g_hInstance'
C:\Dev-Cpp\lib/libmingw32.a(main.o)(.text+0x106):main.c: undefined reference to `WinMain@16'

collect2: ld returned 1 exit status

Execution terminated

[cppman]

It looks like you are only trying to compile application.cpp? You need to either create a project that includes all of the source files (and headers), or make sure the compiler compiles and links all of the source files.

[=sinister=]

Thank you cppman, I was able to compile the autoit source now,

but I have another question. Lets say I just want to use one function from the autoit source. Like, for example, Asc()

///////////////////////////////////////////////////////////////////////////////
// Asc()
///////////////////////////////////////////////////////////////////////////////

AUT_RESULT AutoIt_Script::F_Asc(VectorVariant &vParams, Variant &vResult)
{
    vResult = int(uchar(vParams[0].szValue()[0]));
    return AUT_OK;

} // Asc()

In other words, how would I compile only one C++ file (I am using script_math.cpp in the example above)

I have these errors:

'_MAX_PATH' was not declared in this scope
implicit declaration of function 'int atof(...)'
implicit declaration of function 'int_atoi64(...)'
implicit declaration of function 'int atoi(...)'

[Valik]

You can't really pull any of the AutoIt functions out of AutoIt and use them somewhere else unless you're also using some of AutoIt's types or you're willing to re-write the function to take native C++ types. You also can't compile most of the source files stand-alone because once again things depend on other things you aren't including as part of the compilation unit. The AutoIt source can be useful to use for reference, but it's not really something that can be easily adapted to other purposes.