From dc8df8660a5cf069a1c804669d22433603e7acc7 Mon Sep 17 00:00:00 2001
From: Sebastien Bourdeauducq <sb@m-labs.hk>
Date: Tue, 16 Jun 2020 16:23:47 +0800
Subject: [PATCH] conda-windows: build llvmlite-artiq

---
 artiq-fast/conda-windows/llvmlite-artiq.nix | 53 +++++++++++++++++++++
 artiq-fast/conda-windows/llvmlite-msys.diff | 42 ++++++++++++++++
 artiq-fast/default.nix                      |  4 ++
 3 files changed, 99 insertions(+)
 create mode 100644 artiq-fast/conda-windows/llvmlite-artiq.nix
 create mode 100644 artiq-fast/conda-windows/llvmlite-msys.diff

diff --git a/artiq-fast/conda-windows/llvmlite-artiq.nix b/artiq-fast/conda-windows/llvmlite-artiq.nix
new file mode 100644
index 0000000..aa21b79
--- /dev/null
+++ b/artiq-fast/conda-windows/llvmlite-artiq.nix
@@ -0,0 +1,53 @@
+{ 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; };
+  build = wfvm.utils.wfvm-run {
+    name = "build-llvmlite-artiq";
+    image = wfvm.makeWindowsImage { installCommands = with wfvm.layers; [ anaconda3 msys2 msys2-packages ]; };
+    script = ''
+      ${wfvm.utils.win-put}/bin/win-put "${conda-windows-llvm-or1k}/win-64/llvm-or1k-*.tar.bz2" ".\llvm-or1k.tar.bz2"
+      ${wfvm.utils.win-exec}/bin/win-exec ".\Anaconda3\scripts\activate && conda create -n build llvm-or1k.tar.bz2"
+
+      cat > meta.yaml << EOF
+      package:
+        name: llvmlite-artiq
+        version: ${version}
+
+      source:
+        url: ../src.tar
+      EOF
+
+      cat > bld.bat << EOF
+      set MSYS=C:\MSYS64
+      set PATH=%MSYS%\usr\bin;%MSYS%\mingw64\bin;%PATH%
+
+      python setup.py install \
+        --prefix=\$PREFIX \
+        --single-version-externally-managed \
+        --record=record.txt \
+        --no-compile
+      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}
+      tar chf src.tar src
+      ${wfvm.utils.win-put}/bin/win-put src.tar ".\src.tar"
+
+      ${wfvm.utils.win-exec}/bin/win-exec ".\Anaconda3\scripts\activate build && conda build --no-anaconda-upload --no-test llvmlite-artiq"
+
+      ${wfvm.utils.win-get}/bin/win-get ".\Anaconda3\conda-bld\win-64\llvmlite-artiq-${version}-0.tar.bz2"
+    '';
+  };
+in
+  pkgs.runCommand "conda-windows-llvmlite-artiq" { buildInputs = [ build ]; } ''
+    wfvm-run-build-llvmlite-artiq
+    mkdir -p $out/win-64 $out/nix-support
+    cp *.tar.bz2 $out/win-64
+    echo file conda $out/win-64/*.tar.bz2 >> $out/nix-support/hydra-build-products
+    ''
diff --git a/artiq-fast/conda-windows/llvmlite-msys.diff b/artiq-fast/conda-windows/llvmlite-msys.diff
new file mode 100644
index 0000000..1c4f175
--- /dev/null
+++ b/artiq-fast/conda-windows/llvmlite-msys.diff
@@ -0,0 +1,42 @@
+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):
diff --git a/artiq-fast/default.nix b/artiq-fast/default.nix
index b47f86a..5329b71 100644
--- a/artiq-fast/default.nix
+++ b/artiq-fast/default.nix
@@ -106,6 +106,10 @@ let
       inherit (llvm-or1k) version;
       src = llvm-or1k.llvm-src;
     };
+    conda-windows-llvmlite-artiq = import ./conda-windows/llvmlite-artiq.nix {
+      inherit pkgs conda-windows-llvm-or1k;
+      inherit (llvmlite-artiq) version src;
+    };
   };
 in
   mainPackages // boardPackages