Hello David,
This patch is a real progress, thank you! However, I still have a
linking error when compiling a trivial test program with clang:
mathieu@elbruz ~/guix [env]$ ./pre-inst-env guix environment --ad-hoc clang
--pure
mathieu@elbruz ~/guix [env]$ clang ~/tmp/t.cpp
clang-8: error: unable to execute command: Executable "ld" doesn't exist!
clang-8: error: linker command failed with exit code 1 (use -v to see
invocation)
This is because the linker provided by "binutils" is not accessible. I
guess we need to make something analog to make-gcc-toolchain.
WDYT?
Mathieu
David Truby writes:
> ---
> gnu/packages/llvm.scm | 5 +++++
> 1 file changed, 5 insertions(+)
>
> diff --git a/gnu/packages/llvm.scm b/gnu/packages/llvm.scm
> index 33fb53d65e..0a7efe980f 100644
> --- a/gnu/packages/llvm.scm
> +++ b/gnu/packages/llvm.scm
> @@ -202,6 +202,7 @@ compiler. In LLVM this library is called
> \"compiler-rt\".")
> (lambda* (#:key inputs #:allow-other-keys)
> (let ((libc (assoc-ref inputs "libc"))
> (compiler-rt (assoc-ref inputs "clang-runtime"))
> + (gcc (assoc-ref inputs "gcc"))
> (version
> (string->number
> ,(version-major (package-version
> clang-runtime)))))
> @@ -218,6 +219,10 @@ compiler. In LLVM this library is called
> \"compiler-rt\".")
> (("(^[[:blank:]]+LibDir = ).*" _ declaration)
> (string-append declaration "\"" libc
> "/lib\";\n"))
>
> + ;; Make clang look for libstdc++ in the right
> location
> + (("LibStdCXXIncludePathCandidates\\[\\] = \\{")
> + (string-append
> "LibStdCXXIncludePathCandidates[] = { \"" gcc "/include/c++\","))
> +
> ;; Make sure libc's libdir is on the search
> path, to
> ;; allow crt1.o & co. to be found.
> (("@GLIBC_LIBDIR@")
