Suvayu Ali <fatkasuvayu+linux@gmail.com> writes:

>
> Yes, I have looked at what the official packages[1] do, I do exactly the
> same[2].  Essentially the spec file does the following:
>
>   pushd bindings/ruby
>       ruby extconf.rb --vendor --with-cflags="%{optflags}"
>       make %{?_smp_mflags}
>   popd

I think the problem is contained in the original message. Since we want
to create a shared library "notmuch.so" for ruby to import, we need to
compile the C files in bindings/ruby with -fPIC.

I don't know if this is Debian specific, or ruby version specific, but
on my Debian Jessie machine with ruby 2.1, the generated Makefile
bindings/ruby/Makefile has

CFLAGS   = $(CCDLFLAGS) -g -O2 -fstack-protector-strong -Wformat
-Werror=format-security -fPIC $(ARCH_FLAG)

in it

even when invoked outside the notmuch build system; e.g.

% cd bindings/ruby && ruby extconf.rb

I guess the first step is to see if the -fPIC flag is also there on
Fedora, and if not, why not. If I look at the builds for 0.19 [1]
it seems it is. But notice there it is not required to pass it in to "--with-cflags"

d

[1] https://kojipkgs.fedoraproject.org/packages/notmuch/0.19/1.fc21/data/logs/x86_64/build.log
    - I couldn't find x86_64 build logs for 0.20