gcc: withoutTargetLibc: build libgcc_s.so

We want a `libgcc_s.so` to be built by the first stage
cross-compiler (withoutTargetLibc), since that is the compiler which
will compile the target libc.

This commit accomplishes that, by making three changes:

1. Replacing the `targetPlatform.libc == "msvcrt" &&` conditional
   with `enableShared`, so that the code which cross-build
   `libgcc_s.so` is used for all cross compilers capable of emitting
   shared libraries.

2. Removing the `targetPlatform == hostPlatform` guard from the code
   which produces the `libgcc` output.

3. Looking for build products in in "lib/${targetPlatform.config}/"
   rather than "lib/", so we will find them when cross compiling.

0 files changed, 0 insertions, 0 deletions