In the header declaring DGBoardRepFromGame, make sure to declare it extern
"C".
#ifdef __cplusplus
extern "C" {
#endifextern DGBoardRepFromGame(DGGame*, char*); #ifdef __cplusplus } #endif On Wed, Sep 3, 2008 at 10:40 PM, Joachim <[EMAIL PROTECTED]> wrote: > Dear list, > > I'm getting a linker error, and it's not a missing inclusion of a > framework. I suspect it has to do with mixing .m and .mm files, but I'm > actually pretty clueless. > > This is the output from the build: > > "DGBoardRepFromGame(DGGame*, char*)", referenced from: > -[DGTinyEngine setPositionFromGame:error:] in DGTinyEngine.o > ld: symbol(s) not found > collect2: ld returned 1 exit status > > In my otherwise Objective-C only project, DGTinyEngine.mm is using a C++ > engine, hence the need to make it an Objective-C++ file. It imports a > "DGFunctions.h" file that amongst other general C functions declares the > void DGBoardRepFromGame (DGGame *game, DGBoardRep buffer) function. The > function is implemented in a .m file. > > It is the call in DGTinyEngine.mm to this function that causes the linker > error. If I comment out the call to DGBoardRepFromGame, the project links > fine. DGGame is an Objective-C class that is used several places in > DGTinyEngine.mm without causing any problems. > > What causes the linker error, and what can I do to avoid it? > > Thanks in advance, > Joachim > _______________________________________________ > > Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) > > Please do not post admin requests or moderator comments to the list. > Contact the moderators at cocoa-dev-admins(at)lists.apple.com > > Help/Unsubscribe/Update your Subscription: > http://lists.apple.com/mailman/options/cocoa-dev/jjalon%40gmail.com > > This email sent to [EMAIL PROTECTED] > _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
