Re: FreeBSD / libobj2 issue after update - all apps crash

[Riccardo Mottola]

Hi David,

David Chisnall wrote:
> Thanks for the report.  Please can you file an issue on GitHub?  This 
> is a quite surprising error - it implies that either clang has a bug 
> or that something is trying to manually create or modify protocols 
> without calling through the runtime.  This might happen if you have a 
> version of GNUstep compiled against the gcc runtime and using 
> ObjectiveC2.framework instead of the runtime's public APIs, but that 
> shouldn't be the case with the packaged versions.

clang and libobjc2 are packaged, however gnustep installation is 
compiled by my by current sources. I did not do anything special, I 
configured make with:

$ ./configure --prefix=/ --with-layout=gnustep CFLAGS=-I/usr/local/include

and clang was automatically detected,

base tests report:

6987 Passed tests
  33 Dashed hopes
   9 Failed files
   8 Skipped sets
   7 Failed tests
   1 Failed build

so it is not totally broken, but not perfect either

Skipped set:       general.m 128 ... No Blocks support in the compiler.
Skipped set:       basic.m 41 ... No dictionary subscripting support in 
the compiler.
Skipped set:       blocks.m 49 ... No Blocks support in the compiler.

according to configure log, this is the compiler detected:

configure:4393: checking for C compiler version
configure:4402: cc --version >&5
FreeBSD clang version 6.0.0 (tags/RELEASE_600/final 326565) (based on 
LLVM 6.0.0)
Target: x86_64-unknown-freebsd11.2
Thread model: posix

> I have seen something odd with the FreeBSD package builder machines 
> though.  When I tried installing gnustep from them, I saw -gui 
> compiled with the 1.8 ABI, but everything else compiled with the 2.0 
> ABI, which caused everything other than plmerge to fail to start with 
> a linker error.  I couldn't reproduce it building locally though. 

How do you know with which version each library has? Maybe there is 
indeed some mismatch happening. It was working about a month ago, what 
changed is that I upgraded packages and then rebuilt gnustep (starting 
from make, clean)

/System/Library/Libraries/libgnustep-base.so:
        libobjc.so.4.6 => /usr/local/lib/libobjc.so.4.6 (0x801b1d000)

/System/Library/Libraries/libgnustep-gui.so:
        libicui18n.so.64 => /usr/local/lib/libicui18n.so.64 (0x802000000)
        libicuuc.so.64 => /usr/local/lib/libicuuc.so.64 (0x802526000)
        libicudata.so.64 => /usr/local/lib/libicudata.so.64 (0x802911000)
        libpng16.so.16 => /usr/local/lib/libpng16.so.16 (0x802b12000)
        libgnustep-base.so.1.26 => 
/System/Library/Libraries/libgnustep-base.so.1.26 (0x802e00000)
        libgif.so.7 => /usr/local/lib/libgif.so.7 (0x80391d000)
        libtiff.so.5 => /usr/local/lib/libtiff.so.5 (0x803b26000)
        libz.so.6 => /lib/libz.so.6 (0x803da0000)
        libjpeg.so.8 => /usr/local/lib/libjpeg.so.8 (0x803fb8000)
        libm.so.5 => /lib/libm.so.5 (0x80424b000)
        libobjc.so.4.6 => /usr/local/lib/libobjc.so.4.6 (0x804478000)


at least they are linked to the same libobjc version.

Riccardo