Compiler-generated implicit symbols and --gc-sections

[Mike]

On Tuesday, 7 January 2014 at 11:04:45 UTC, Joakim wrote:
> I ran into this recently when compiling for Android/x86, as the 
> Android NDK linker calls --gc-sections by default.  I was able 
> to reproduce the segfault with dmd compiling a linux/x86 
> executable with the --gc-sections flag added to the linker 
> command, when compiling sieve.d from the samples.  I think 
> sieve.d was working fine when I removed the recent patches for 
> shared library support on linux, in sections_linux.d, so this 
> incompatibility might be related to the shared library work.  
> I'm not sure if you're even using that work though, so maybe 
> that's just one of the ways that gc-sections trips up.

Interesting!  I'd like to take the current 4.8 backport and 
compile it without the shared library stuff to test this out.  
But I don't know how.  Would you mind giving me a quick 
explanation on how to remove these patches using git?  I'm really 
quite new to some of these tools.