branch master updated (af52ba6 -> c9677ce)

[guix-commits]

mbakke pushed a change to branch master
in repository guix.

    from af52ba6  gnu: git-repo: Update to 2.3.
     new f277482  gnu: python-libarchive-c: Update to 2.9.
     new 0375ada  gnu: libgme: Remove obsolete workaround.
     new f175fa4  gnu: espeak-ng: Update to 1.50.
     new b4481f2  gnu: node: Increase build timeouts.
     new 233deb8  gnu: clang@9: Fix search path handling.
     new cd16014  gnu: llvm: Add helper procedure for constructing download 
URLs.
     new dbf15d8  gnu: clang@9: Update to 9.0.1.
     new e2546bb  gnu: qtbase: Add variant that fixes file name handling in 
CMake macros.
     new 3c60d85  gnu: freecad. Fix build failure.
     new 25b9992  gnu: freecad. Use qt-build-system.
     new 52f9c3b  gnu: Reorganize llvm.scm.
     new 501672d  gnu: clang: Use the correct CLANG-RUNTIME for versions 6 and 
7.
     new b77a901  gnu: mesa: Build with llvm@8 explicitly.
     new 00ede15  gnu: LLVM: Promote LLVM 9 to the default 'llvm' package.
     new c9677ce  gnu: mesa-opencl: Build with clang@8.

The 15 revisions listed above as "new" are entirely new to this
repository and will be described in separate emails.  The revisions
listed as "add" were already present in the repository and have only
been added to this reference.


Summary of changes:
 gnu/local.mk                                       |   2 +
 gnu/packages/engineering.scm                       |   5 +-
 gnu/packages/gl.scm                                |   4 +-
 gnu/packages/llvm.scm                              | 343 +++++++++++----------
 gnu/packages/music.scm                             |   5 -
 gnu/packages/node.scm                              |   3 +-
 ...path.patch => clang-9.0-libc-search-path.patch} |  37 +--
 gnu/packages/patches/qtbase-QTBUG-81715.patch      |  40 +++
 gnu/packages/python-xyz.scm                        |   4 +-
 gnu/packages/qt.scm                                |  13 +
 gnu/packages/speech.scm                            |  22 +-
 11 files changed, 271 insertions(+), 207 deletions(-)
 copy gnu/packages/patches/{clang-7.0-libc-search-path.patch => 
clang-9.0-libc-search-path.patch} (73%)
 create mode 100644 gnu/packages/patches/qtbase-QTBUG-81715.patch