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23-Dec-2011 |
David 'Digit' Turner <digit@google.com> |
Do not force exceptions and rtti when using GNU libstdc++
This patch changes the default exported flags for both
gnustl_static and gnustl_shared. Previously, they were always
set to -fexceptions and -frtti, but this resulted in a few
problems.
Now, the flags are empty by default, but you can use
APP_GNUSTL_FORCE_CPP_FEATURES in your Application.mk to
revert to the old behaviour, in case you need it.
+ Add four unit tests to check that the build system works
correctly with regards to this new variable definition
+ Documentation updates.
+ Modify tests/run-tests.sh to recognize a 'BUILD_SHOULD_FAIL'
tag in a unit test directory. If such a file is present,
the build _should_ fail for the test to pass.
This is required because there is no way to reliably detect
at compile time that -frtti is _not_ used, so we actually
require the opposite from our unit test sources.
(see gnustl-force-none and gnustl-force-exceptions).
Change-Id: Ia6fd236284c942bc0cb8fc0b49d9344ab68fe7ee
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