3 files changed, 93 insertions, 0 deletions
diff --git a/ports/opencascade/CONTROL b/ports/opencascade/CONTROL
new file mode 100644
index 000000000..21c5148b0
--- /dev/null
+++ b/ports/opencascade/CONTROL
@@ -0,0 +1,13 @@
+Source: opencascade
+Version: 7.4.0
+Build-Depends: freetype
+Description: Open CASCADE Technology (OCCT) is an open-source software development platform for 3D CAD, CAM, CAE.
+Supports: !(uwp|osx|linux|arm|static)
+
+Feature: freeimage
+Build-Depends: freeimage
+Description: Enable optional usage of freeimage
+
+Feature: tbb
+Build-Depends: tbb
+Description: Enable optional usage of tbb
+\ No newline at end of file
diff --git a/ports/opencascade/fix-msvc-32bit-builds.patch b/ports/opencascade/fix-msvc-32bit-builds.patch
new file mode 100644
index 000000000..2fa76ffb0
--- /dev/null
+++ b/ports/opencascade/fix-msvc-32bit-builds.patch
@@ -0,0 +1,22 @@
+ adm/cmake/occt_defs_flags.cmake | 8 ++++++++
+ 1 file changed, 8 insertions(+)
+
+diff --git a/adm/cmake/occt_defs_flags.cmake b/adm/cmake/occt_defs_flags.cmake
+index 5484c67..203ca6b 100644
+--- a/adm/cmake/occt_defs_flags.cmake
++++ b/adm/cmake/occt_defs_flags.cmake
+@@ -16,6 +16,14 @@ if (MSVC)
+   set (CMAKE_C_FLAGS   "${CMAKE_C_FLAGS}   /fp:precise")
+ endif()
+ 
++# Turn off the "improved inline analyzer" that stalls on x86 release builds using MSVC 16.7 for 32-bit
++if (NOT CMAKE_SIZEOF_VOID_P EQUAL 8)
++  if (MSVC)
++    set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /d2DeepThoughtInliner-")
++    set (CMAKE_C_FLAGS   "${CMAKE_C_FLAGS} /d2DeepThoughtInliner-")
++  endif()
++endif()
++
+ # add SSE2 option for old MSVC compilers (VS 2005 - 2010, 32 bit only)
+ if (NOT CMAKE_SIZEOF_VOID_P EQUAL 8)
+   if (MSVC AND ((MSVC_VERSION EQUAL 1400) OR (MSVC_VERSION EQUAL 1500) OR (MSVC_VERSION EQUAL 1600)))
diff --git a/ports/opencascade/portfile.cmake b/ports/opencascade/portfile.cmake
new file mode 100644
index 000000000..126122c32
--- /dev/null
+++ b/ports/opencascade/portfile.cmake
@@ -0,0 +1,58 @@
+vcpkg_fail_port_install(ON_ARCH "arm" "arm64" ON_TARGET "UWP" "OSX" "Linux")
+vcpkg_check_linkage(ONLY_DYNAMIC_LIBRARY)
+
+vcpkg_from_github(
+    OUT_SOURCE_PATH SOURCE_PATH
+    REPO Open-Cascade-SAS/OCCT
+    REF V7_4_0
+    SHA512 595ad7226b9365c1a7670b77001f71787a5d8aaa4a93a4a4d8eb938564670d79ae5a247ae7cc770b5da53c9a9f2e4166ba6e5ae104c1f2debad19ec2187f4a56
+    HEAD_REF master
+	PATCHES fix-msvc-32bit-builds.patch
+)
+
+vcpkg_check_features(OUT_FEATURE_OPTIONS FEATURE_OPTIONS
+    "freeimage"  USE_FREEIMAGE
+    "tbb"        USE_TBB
+)
+
+# VTK option in opencascade not currently supported because only 6.1.0 is supported but vcpkg has >= 9.0
+
+
+# We turn off BUILD_MODULE_Draw as it requires TCL 8.6 and TK 8.6 specifically which conflicts with vcpkg only having TCL 9.0 
+# And pre-built ActiveTCL binaries are behind a marketing wall :(
+# We use the Unix install layout for Windows as it matches vcpkg
+vcpkg_configure_cmake(
+    SOURCE_PATH ${SOURCE_PATH}
+    PREFER_NINJA
+    OPTIONS
+        -DBUILD_LIBRARY_TYPE="Shared"
+        -DBUILD_MODULE_Draw=OFF
+        -DINSTALL_DIR_LAYOUT=Unix
+        -DBUILD_SAMPLES_MFC=OFF
+        -DBUILD_SAMPLES_QT=OFF
+        -DBUILD_DOC_Overview=OFF
+        ## Options from vcpkg_check_features()
+        ${FEATURE_OPTIONS}
+)
+
+vcpkg_install_cmake()
+
+vcpkg_fixup_cmake_targets(CONFIG_PATH lib/cmake/opencascade TARGET_PATH share/opencascade)
+
+# debug creates libd and bind directories that need moving
+file(REMOVE_RECURSE ${CURRENT_PACKAGES_DIR}/debug/bin)
+file(RENAME ${CURRENT_PACKAGES_DIR}/debug/bind ${CURRENT_PACKAGES_DIR}/debug/bin)
+
+# Remove libd to lib, libd just has cmake files we dont want too
+file(REMOVE_RECURSE ${CURRENT_PACKAGES_DIR}/debug/lib)
+file(RENAME ${CURRENT_PACKAGES_DIR}/debug/libd ${CURRENT_PACKAGES_DIR}/debug/lib)
+
+file(REMOVE_RECURSE ${CURRENT_PACKAGES_DIR}/debug/include)
+file(REMOVE_RECURSE ${CURRENT_PACKAGES_DIR}/debug/share)
+
+# the bin directory ends up with bat files that are noise, let's clean that up
+file(GLOB BATS ${CURRENT_PACKAGES_DIR}/bin/*.bat)
+file(REMOVE_RECURSE ${BATS})
+
+
+file(INSTALL ${SOURCE_PATH}/OCCT_LGPL_EXCEPTION.txt DESTINATION ${CURRENT_PACKAGES_DIR}/share/${PORT} RENAME copyright)