Wrong GCC configure flag

[damianam]

GCC's configure has an option called --enable-plugin. The easyblock has it misspelled as --enable-plugins.

[boegel]

I guess the confusion comes from the binutils configure option, which is --enable-plugins.

@damianam how did you hit this? Any relevant error messages?

[damianam]

Long story short: I have a binary package that fails with our EB compiled cURL (can't find a particular versioned symbol). I tracked down the issue to the compiler used to compile GCC. The system GCC produces a libcurl.so that works, the EB GCC doesn't. Compiler version is not the issue, so I am investigating how the compilers have been built. That's when I stumbled upon this. Depending on what else I find, you might get another open issue here :-P

[damianam]

Further updates:

--enable-gold and --enable-ld are binutils options, not GCC options. GCC, GDB and binutils share the same top level configure script, which sucks if you ask me. I think we can safely remove these options from gcc.py

--with-plugin-ld=ld.gold defaults GCC to use ld.gold. However, in binutils.py the default linker chosen is GNU ld: --enable-ld=default. This seems like a contradiction between default behaviour for both packages. In most cases it doesn't matter I guess, and --with-plugin-ld=ld.gold takes precedence.

The issue I had with the aforementioned binary package seems to be related to the fact that the binary was linked with GNU ld, as well as the libcurl.so that came with the system. Linking libcurl.so with ld.gold seems to cause that symbol versioning incompatibility (libcurl.so.4: version 'CURL_OPENSSL_3' not found), but I don't fully understand why.

[boegel]

@wpoely86 thoughts on this?

[wpoely86]

Yeah, I noticed the ld.gold weirdness too but haven't change it yet. We should default to gold everywhere. And drop the binutils flags. I will give it a spin and see if we end up with the binary binary.

@damianam It's know that ld.gold does not always produce the same results as bfd. There is already a code in EB that needs bfd to work.