conda-windows: build llvmlite with VS, again

artiq-fast/conda-windows/llvmlite-artiq.nix

@@ -1,16 +1,28 @@
 { pkgs, conda-windows-llvm-or1k, version, src }:
 
-# See: https://github.com/valtron/llvm-stuff/wiki/Build-llvmlite-with-MSYS2
-
 let
   wfvm = import ../wfvm { inherit pkgs; };
+  conda-vs2015_runtime-filename = "vs2015_runtime-14.16.27012-hf0eaf9b_2.tar.bz2";
+  conda-vs2015_runtime = pkgs.fetchurl {
+    url = "https://anaconda.org/anaconda/vs2015_runtime/14.16.27012/download/win-64/${conda-vs2015_runtime-filename}";
+    sha256 = "1gbm6i6nkp8linmak5mm42hj1nzqd5ppak8kv1n3wfn52p21ngvs";
+  };
+  conda-cmake-filename = "cmake-3.17.2-h33f27b4_0.tar.bz2";
+  conda-cmake = pkgs.fetchurl {
+    url = "https://anaconda.org/anaconda/cmake/3.17.2/download/win-64/${conda-cmake-filename}";
+    sha256 = "0lg782pj2i9h20rwfkwwskis038r98b3z4c9j1a6ih95rc6m2acn";
+  };
   build = wfvm.utils.wfvm-run {
     name = "build-llvmlite-artiq";
-    image = wfvm.makeWindowsImage { installCommands = with wfvm.layers; [ anaconda3 msys2 msys2-packages ]; };
+    image = wfvm.makeWindowsImage { installCommands = with wfvm.layers; [ anaconda3 msvc msvc-ide-unbreak ]; };
     script = ''
-      ln -s ${conda-windows-llvm-or1k}/win-64/llvm-or1k-*.tar.bz2 llvm-or1k.tar.bz2
-      ${wfvm.utils.win-put}/bin/win-put llvm-or1k.tar.bz2 .
-      ${wfvm.utils.win-exec}/bin/win-exec ".\Anaconda3\scripts\activate && conda create -n build llvm-or1k.tar.bz2"
+      ln -s ${conda-vs2015_runtime} ${conda-vs2015_runtime-filename}
+      ln -s ${conda-cmake} ${conda-cmake-filename}
+      ${wfvm.utils.win-exec}/bin/win-exec "mkdir fake-channel && mkdir fake-channel\win-64"
+      ${wfvm.utils.win-put}/bin/win-put ${conda-vs2015_runtime-filename} ./fake-channel/win-64
+      ${wfvm.utils.win-put}/bin/win-put ${conda-cmake-filename} ./fake-channel/win-64
+      ${wfvm.utils.win-put}/bin/win-put ${conda-windows-llvm-or1k}/win-64/llvm-or1k-*.tar.bz2 ./fake-channel/win-64
+      ${wfvm.utils.win-exec}/bin/win-exec ".\Anaconda3\scripts\activate && conda index fake-channel"
 
       cat > meta.yaml << EOF
       package:
@@ -19,28 +31,32 @@ let
 
       source:
         url: ../src.tar
+
+      requirements:
+        build:
+          - cmake
+          - llvm-or1k
       EOF
 
       cat > bld.bat << EOF
-      set MSYS=C:\MSYS64
-      set PATH=%MSYS%\usr\bin;%MSYS%\mingw64\bin;%PATH%
+      @rem Let CMake know about the LLVM install path, for find_package()
+      set CMAKE_PREFIX_PATH=%LIBRARY_PREFIX%
 
-      python setup.py install \
-        --prefix=\$PREFIX \
-        --single-version-externally-managed \
-        --record=record.txt \
-        --no-compile
+      @rem Ensure there are no build leftovers (CMake can complain)
+      if exist ffi\build rmdir /S /Q ffi\build
+
+      python setup.py install
+      if errorlevel 1 exit 1
       EOF
 
       ${wfvm.utils.win-exec}/bin/win-exec "mkdir llvmlite-artiq"
       ${wfvm.utils.win-put}/bin/win-put meta.yaml llvmlite-artiq
       ${wfvm.utils.win-put}/bin/win-put bld.bat llvmlite-artiq
-      cp --no-preserve=mode,ownership -R ${src} src
-      patch -d src -p1 < ${./llvmlite-msys.diff}
+      ln -s ${src} src
       tar chf src.tar src
       ${wfvm.utils.win-put}/bin/win-put src.tar .
 
-      ${wfvm.utils.win-exec}/bin/win-exec ".\Anaconda3\scripts\activate build && conda build --no-anaconda-upload --no-test llvmlite-artiq"
+      ${wfvm.utils.win-exec}/bin/win-exec ".\Anaconda3\scripts\activate && conda build --no-anaconda-upload --no-test -c file:///C:/users/wfvm/fake-channel --override-channels llvmlite-artiq"
 
       ${wfvm.utils.win-get}/bin/win-get "Anaconda3/conda-bld/win-64/llvmlite-artiq-${version}-0.tar.bz2"
     '';

artiq-fast/conda-windows/llvmlite-msys.diff

@@ -1,42 +0,0 @@
-diff --git a/ffi/CMakeLists.txt b/ffi/CMakeLists.txt
-index 15470d4..11d06a5 100755
---- a/ffi/CMakeLists.txt
-+++ b/ffi/CMakeLists.txt
-@@ -29,6 +29,7 @@ list(REMOVE_ITEM LLVM_AVAILABLE_LIBS LTO LLVM)
- # that we wish to use
- # llvm_map_components_to_libnames(llvm_libs support core irreader)
- llvm_map_components_to_libnames(llvm_libs all)
-+list(REMOVE_ITEM llvm_libs "LTO")
- 
- # Link against LLVM libraries
- target_link_libraries(llvmlite ${llvm_libs})
-diff --git a/ffi/build.py b/ffi/build.py
-index 9169d35..41a9a40 100755
---- a/ffi/build.py
-+++ b/ffi/build.py
-@@ -24,7 +24,7 @@ def try_cmake(cmake_dir, build_dir, generator):
-     old_dir = os.getcwd()
-     try:
-         os.chdir(build_dir)
--        subprocess.check_call(['cmake', '-G', generator, cmake_dir])
-+        subprocess.check_call(['cmake', '-G', generator, '-D', 'LLVM_DIR=$LLVM/lib/cmake/llvm', cmake_dir])
-     finally:
-         os.chdir(old_dir)
- 
-@@ -57,6 +57,7 @@ def find_win32_generator():
-         if is_64bit:
-             generator += ' Win64'
-         build_dir = tempfile.mkdtemp()
-+        generator = 'MinGW Makefiles'
-         print("Trying generator %r" % (generator,))
-         try:
-             try_cmake(cmake_dir, build_dir, generator)
-@@ -78,7 +79,7 @@ def main_win32():
-     # Run configuration step
-     try_cmake(here_dir, build_dir, generator)
-     subprocess.check_call(['cmake', '--build', build_dir, '--config', config])
--    shutil.copy(os.path.join(build_dir, config, 'llvmlite.dll'), target_dir)
-+    shutil.copy(os.path.join(build_dir, 'libllvmlite.dll'), os.path.join(target_dir, 'llvmlite.dll'))
- 
- 
- def main_posix(kind, library_ext):

artiq-fast/default.nix

@@ -139,12 +139,11 @@ let
       inherit (mainPackages.llvm-or1k) version;
       src = mainPackages.llvm-or1k.llvm-src;
     };
-    conda-windows-llvmlite-artiq = import ./conda-windows/redistribute.nix {
+    conda-windows-llvmlite-artiq = import ./conda-windows/llvmlite-artiq.nix {
       inherit pkgs;
-      name = "llvmlite-artiq";
-      filename = "llvmlite-artiq-0.23.0.dev-py35_5.tar.bz2";
-      baseurl = "https://anaconda.org/m-labs/llvmlite-artiq/0.23.0.dev/download/win-64/";
-      sha256 = "10w24w5ljvan06pbvwqj4pzal072jnyynmwm42dn06pq88ryz9wj";
+      # TODO: stop using the legacy package after https://github.com/m-labs/artiq/issues/1473 is fixed
+      inherit (condaWindowsLegacy) conda-windows-llvm-or1k;
+      inherit (mainPackages.llvmlite-artiq) version src;
     };
   };