DTFoundation/Core/Source/DTLog.m:103:20: error: implicit declaration of function 'asl_next' is invalid in C99 [-Werror,-Wimplicit-function-declaration] while ((message = asl_next(response))) ^

[pxr]

Getting this error:

DTFoundation/Core/Source/DTLog.m:103:20: error: implicit declaration of function 'asl_next' is invalid in C99 [-Werror,-Wimplicit-function-declaration]
        while ((message = asl_next(response)))
                          ^

With the latest DTFoundation

[odrobnik]

Which Xcode version?

[odrobnik]

@pxr Please tell me why in your case DTLOG_USE_NEW_ASL_METHODS is getting defined. This should only happen building with iOS SDK >= 7.0 and there the new asl_next is defined.

[pxr]

Hmm I didn't change anything except to do a pod update. I see the same error in Travis as well.

[inf0rmer]

Yup, same here. It seems that even reverting to an older version of the Pod (DTCoreText in my case) breaks it now, because DTFoundation is included as a submodule.

[odrobnik]

You must be having an old version. Travis-CI build is fine: https://travis-ci.org/Cocoanetics/DTFoundation/builds/30648581

Please answer my question: how have you integrated it and which Xcode do you use?

[inf0rmer]

I'm using XCode 5.1.1 and xctool 0.1.16 to build on Travis, both failing. I'm integrating through Cocoapods .

[odrobnik]

@inf0rmer please tell me the links where I can see the failure.

[inf0rmer]

I'm sorry, it's a private repository on Travis :/. These are the errors reported by xctool:

Users/brunoabrantes/Code/clubjudge-ios/Pods/DTFoundation/Core/Source/DTLog.m:103:20: error: implicit declaration of function 'asl_next' is invalid in C99 [-Werror,-Wimplicit-function-declaration]
        while ((message = asl_next(response)))
                          ^
/Users/brunoabrantes/Code/clubjudge-ios/Pods/DTFoundation/Core/Source/DTLog.m:103:18: warning: incompatible integer to pointer conversion assigning to 'aslmsg' (aka 'struct __aslmsg *') from 'int' [-Wint-conversion]
        while ((message = asl_next(response)))
                        ^ ~~~~~~~~~~~~~~~~~~
/Users/brunoabrantes/Code/clubjudge-ios/Pods/DTFoundation/Core/Source/DTLog.m:125:2: error: implicit declaration of function 'asl_release' is invalid in C99 [-Werror,-Wimplicit-function-declaration]
        asl_release(response);

I manually changed #define DTLOG_USE_NEW_ASL_METHODS 1 to #define DTLOG_USE_NEW_ASL_METHODS 0 in DTLog.m and the build started working.

[odrobnik]

please check why in your case this gets defined in these lines https://github.com/Cocoanetics/DTFoundation/blob/develop/Core/Source/DTLog.m#L15-L23

That should only occur in cases where asl.h has the new function.

[inf0rmer]

From what I could gather the iOS 7.0 simulator includes a version of <asl.h> that does not include asl_next. I checked /usr/include/asl.h on the iOS 8.0 simulator (using XCode 6-Beta3) and asl_next is there. Is asl_next really supported under the iOS 7 SDK or just iOS 8?

[inf0rmer]

If I change the version target from __IPHONE_6_1 to __IPHONE_7_1 the build is successful.

[odrobnik]

I think I fixed it correctly such: 73604d1a4a5ec7f3516336db4bb7274fa3804a04

I retagged the 1.7.2 release. Please refresh your repo clones and report if this fixes it.

[odrobnik]

Info: this needs to both consider the deployment target as well as the SDK version. The deprecation warning occurs if you have a deployment target >= 8.0.

[inf0rmer]

Yup, this works. Thanks a lot!

[odrobnik]

Thanks for helping me to fix this quickly.