From 2771625de96e76f565afa4a2864d28dcb0085f05 Mon Sep 17 00:00:00 2001
From: Sean Cross <sean@xobs.io>
Date: Thu, 23 Feb 2023 20:57:04 +0800
Subject: [PATCH] misc/klayout: add build for macos

Add support for klayout to build on macos. This involves some rather
egregeous hacks to the Qt build system to work around the fact that
Conda builds things using a custom Mac SDK.

Signed-off-by: Sean Cross <sean@xobs.io>
---
 misc/klayout/build.sh  | 31 +++++++++++++++++++++++++++++--
 misc/klayout/meta.yaml | 30 +++++++++++++++++-------------
 2 files changed, 46 insertions(+), 15 deletions(-)

diff --git a/misc/klayout/build.sh b/misc/klayout/build.sh
index c1368111..82a352de 100644
--- a/misc/klayout/build.sh
+++ b/misc/klayout/build.sh
@@ -7,11 +7,30 @@ set -x
 UNAME_OUT="$(uname -s)"
 case "${UNAME_OUT}" in
     Linux*)     OS=Linux;;
+    Darwin*)    OS=Mac;;
     *)          OS="${UNAME_OUT}"
                 echo "Unknown OS: ${OS}"
                 exit;;
 esac
 
+if [[ $OS == "Linux" ]]; then
+    bin_ext=""
+    lib_ext=".so"
+elif [[ $OS == "Mac" ]]; then
+    export bin_ext=".app"
+    export lib_ext=".dylib"
+    cd ${PREFIX}
+    if grep -q -- '-isysroot $$sysroot_path $$version_min_flag' mkspecs/features/mac/default_post.prf; then
+        sed 's|-isysroot $$sysroot_path $$version_min_flag|-isysroot '$CONDA_BUILD_SYSROOT' -mmacosx-version-min='$MACOSX_DEPLOYMENT_TARGET'|g' mkspecs/features/mac/default_post.prf > mkspecs/features/mac/default_post.prf.bkp
+        mv mkspecs/features/mac/default_post.prf.bkp mkspecs/features/mac/default_post.prf
+    elif grep -q -- '-isysroot $$QMAKE_MAC_SDK_PATH $$version_min_flag' mkspecs/features/mac/default_post.prf; then
+        sed 's|-isysroot $$QMAKE_MAC_SDK_PATH $$version_min_flag|-isysroot '$CONDA_BUILD_SYSROOT' -mmacosx-version-min='$MACOSX_DEPLOYMENT_TARGET'|g' mkspecs/features/mac/default_post.prf > mkspecs/features/mac/default_post.prf.bkp
+        mv mkspecs/features/mac/default_post.prf.bkp mkspecs/features/mac/default_post.prf
+    fi
+    sed 's|^QMAKE_MAC_SDK_PATH =.*|QMAKE_MAC_SDK_PATH = "'$CONDA_BUILD_SYSROOT'"|g' mkspecs/features/mac/sdk.prf > mkspecs/features/mac/sdk.prf.bkp
+    mv mkspecs/features/mac/sdk.prf.bkp mkspecs/features/mac/sdk.prf
+fi
+
 cd ${SRC_DIR}
 ./build.sh -build "${SRC_DIR}/build" -python "${PYTHON}" -expert -without-qtbinding -libpng -libexpat -dry-run
 
@@ -20,5 +39,13 @@ make V=1 -j$CPU_COUNT
 make V=1 install
 
 cd ${SRC_DIR}/bin-release
-cp -a klayout strm* ${PREFIX}/bin/
-cp -ar *.so* pymod *_plugins ${PREFIX}/lib/
+cp -a klayout${bin_ext} strm* ${PREFIX}/bin/
+cp -a *${lib_ext}* pymod *_plugins ${PREFIX}/lib/
+
+if [[ $OS == "Mac" ]]; then
+    # Add a symlink to allow it to run from the command line
+    cd ${PREFIX}/bin/
+    ln -s klayout${bin_ext}/Contents/MacOS/klayout .
+    cd ${SRC_DIR}
+    cp -a build/pymod/*${lib_ext}* ${PREFIX}/lib/pymod/
+fi
diff --git a/misc/klayout/meta.yaml b/misc/klayout/meta.yaml
index 2b8f1cfd..80fc85c4 100644
--- a/misc/klayout/meta.yaml
+++ b/misc/klayout/meta.yaml
@@ -27,32 +27,36 @@ build:
 requirements:
   build:
     - make
+    - {{ compiler('c') }}
     - {{ compiler('cxx') }}
-    - {{ cdt('mesa-libgl-devel') }}  # [linux]
-    - {{ cdt('mesa-dri-drivers') }}  # [linux]
-    - {{ cdt('libselinux') }}  # [linux]
-    - {{ cdt('libxdamage') }}  # [linux]
-    - {{ cdt('libxxf86vm') }}  # [linux]
-    - {{ cdt('libxext') }}     # [linux]
-    - {{ cdt('libxfixes') }}  # [linux]
-    - {{ cdt('libxau') }}  # [linux]
-    - {{ cdt('libxcb') }}  # [linux]
-    - {{ cdt('expat') }}  # [linux]
-    - {{ cdt('libpng') }}  # [linux]
+    - {{ cdt('mesa-libgl-devel') }}   [linux]
+    - {{ cdt('mesa-dri-drivers') }}   [linux]
+    - {{ cdt('libselinux') }}         [linux]
+    - {{ cdt('libxdamage') }}         [linux]
+    - {{ cdt('libxxf86vm') }}         [linux]
+    - {{ cdt('libxext') }}            [linux]
+    - {{ cdt('libxfixes') }}          [linux]
+    - {{ cdt('libxau') }}             [linux]
+    - {{ cdt('libxcb') }}             [linux]
+    - {{ cdt('expat') }}              [linux]
+    - {{ cdt('libpng') }}             [linux]
   host:
     - python {{ python_version }}
     - ruby
-    - qt
+    - qt >=5.0,<6.0
     - zlib
   run:
     - python {{ python_version }}
     - ruby
-    - qt
+    - qt >=5.0,<6.0
     - zlib
 
 test:
   commands:
     - klayout -v
+  requires:
+    - ruby
+    - python {{ python_version }}
 
 about:
   home: https://www.klayout.de/