mark@chromium.org bbbe29de11 Breakpad: Fix build with new clang versions.
gcc has a single exception setting for all languages. Saying -fno-exceptions
in gcc disables exceptions and cleanups for cc files, but has no effect for mm
files.

In clang, -fno-exceptions only disables c++ exceptions, but keeps objective-c
exceptions and cleanups enabled.

http://llvm.org/viewvc/llvm-project?view=revision&revision=220714 changed
__EXCEPTIONS to be defined for clang when cleanups are enabled, independent of
if c++ exceptions are enabled. (This was necessary to have clang work with
glibc which looks at __EXCEPTIONS to decide if cleanups are enabled.)

Breakpad tried to use __EXCEPTIONS to figure out if c++ exceptions are enabled.
In cc files, this works: -fno-exceptions will disable c++ exceptions and
cleanups. But in mm files, -fno-exceptions will disable c++ exceptions and
objective-c exceptions will still be enabled, and so cleanups must run and hence
__EXCEPTIONS is defined.

To make things work with both old and new compilers, do the try/catch hack in
mm files either if __EXCEPTIONS is not defined (for old compilers) or if the
compiler is clang and __has_feature(cxx_exceptions) isn't set (which will work
for new clangs too, and which cleanly maps to if c++ exceptions are enabled).

Patch by Nico Weber <thakis@chromium.org>

Review URL: https://breakpad.appspot.com/1774002/


git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1409 4c0a9323-5329-0410-9bdc-e9ce6186880e
2014-12-10 16:08:09 +00:00
2013-12-13 16:49:11 +00:00
2013-12-10 17:53:50 +00:00
2010-08-13 18:49:03 +00:00

Breakpad is a set of client and server components which implement a
crash-reporting system.


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Getting started in 32-bit mode (from trunk)
Configure: CXXFLAGS=-m32 CFLAGS=-m32 CPPFLAGS=-m32 ./configure
    Build: make
     Test: make check
  Install: make install

If you need to reconfigure your build be sure to run "make distclean" first.


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