I am constructing a framework consisting of C++, ObjectiveC and ObjectiveC++
files. As part of the framework I have created a wrapper around NSLog so I can
control and disable log messages centrally. I know there are better ways to do
this, however right now I need to get this working and don't have the luxury of
evaluating various logging frameworks. Basically I have a
Logger.h
#import <Foundation/Foundation.h>
void ABSLogToggle (BOOL debug);
void ABSLog (NSString *format,...);
Logger.m
#import "Logger.h"
int absDebug = NO;
void ABSLogToggle (BOOL debug)
{
absDebug = debug;
}
void ABSLog (NSString * format,...)
{
if (absDebug == NO)
{
}
else
{
va_list args;
va_start(args, format);
NSString * message = [[NSString alloc] initWithFormat:format
arguments:args];
NSLog(@"ABSLOG : %@",message);
va_end(args);
}
}
Now when I import Logger.h and use it from a Objective C (.m) file everything
seems to work great. However as soon I as import it and use it from a Objective
C++ (.mm) file I get the following link error:
Ld [REMOVED] normal i386
setenv MACOSX_DEPLOYMENT_TARGET 10.4
/Developer/usr/bin/g++-4.0 -arch i386 -dynamiclib -isysroot
/Developer/SDKs/MacOSX10.4u.sdk -L[REMOVED]/Release -F[REMOVED]/Release
-filelist [REMOVED].LinkFileList -install_name [REMOVED]
-mmacosx-version-min=10.4 -framework Foundation -framework Cocoa -framework
SyncServices -framework Foundation -framework IOKit -lcrypto.0.9.7 -lssl.0.9.7
-single_module -compatibility_version 1 -current_version 9 -o [REMOVED]
Undefined symbols:
"ABSLog(NSString*, ...)", referenced from:
-[SoapAdaptor initWithPreferences:] in SoapAdaptor.o
ld: symbol(s) not found
collect2: ld returned 1 exit status
Both the logger and the other classes are part of the same target and are
packaged together. I checked that the logger.h file is included in the
framework with public access and that it is included in the Header file of my
framework. However the error occurs during the construction of my framework. As
the entire target is configured to compile on the same architecture I don't
think it is a architecture issue either. I am using OS X 10.6.8 and target Mac
OS X 10.4 upwards.
Any insight into this issue is greatly appreciated.
Thanks in advance
Alex
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