The following issue has been SUBMITTED. ====================================================================== http://www.cmake.org/Bug/view.php?id=12474 ====================================================================== Reported By: Aaron Simmons Assigned To: ====================================================================== Project: CMake Issue ID: 12474 Category: CMake Reproducibility: always Severity: major Priority: normal Status: new ====================================================================== Date Submitted: 2011-09-22 12:41 EDT Last Modified: 2011-09-22 12:41 EDT ====================================================================== Summary: SWIG module should default to use -fno-strict-aliasing Description: SWIG has a pretty big gotcha buried in the docs: you have to know to pass -fno-strict-aliasing to gcc, otherwise crazy things might happen. It's documented here: http://www.swig.org/Doc2.0/Java.html#Java_compiling_dynamic
I think the SWIG module in CMake should default to using -fno-strict-aliasing. Steps to Reproduce: 1. Set up a C/C++ module that passes back a pointer. 2. Use CMake and SWIG to build a JNI library out of (1) 3. Write some Java code that uses the JNI library 4. Build the JNI library in release mode for Android 5. Boom Part (4) could be for any platform, but it happens most readily for Android. Additional Information: This SWIG gotcha has burned some people already: http://stackoverflow.com/questions/6753241/passing-pointer-from-c-to-java-becomes-null While this isn't CMake's issue per se, I think if CMake implemented best practices for SWIG it would save everyone a lot of headaches. ====================================================================== Issue History Date Modified Username Field Change ====================================================================== 2011-09-22 12:41 Aaron Simmons New Issue ====================================================================== -- Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Please keep messages on-topic and check the CMake FAQ at: http://www.cmake.org/Wiki/CMake_FAQ Follow this link to subscribe/unsubscribe: http://public.kitware.com/cgi-bin/mailman/listinfo/cmake-developers
