From ec4d3284e5b579cf980a1407ccafaf5d7724b97c Mon Sep 17 00:00:00 2001
From: Amin Yahyaabadi <aminyahyaabadi74@gmail.com>
Date: Tue, 29 Oct 2024 05:58:32 -0700
Subject: [PATCH] [open3d] fix finding of blas/lapack libraries

---
 ports/open3d/0002-blas.patch | 19 +++++++++++++++++++
 ports/open3d/portfile.cmake  |  5 +++--
 ports/open3d/vcpkg.json      | 27 +++++++++++++--------------
 versions/o-/open3d.json      |  2 +-
 4 files changed, 36 insertions(+), 17 deletions(-)
 create mode 100644 ports/open3d/0002-blas.patch

diff --git a/ports/open3d/0002-blas.patch b/ports/open3d/0002-blas.patch
new file mode 100644
index 00000000000000..09870e04879e1d
--- /dev/null
+++ b/ports/open3d/0002-blas.patch
@@ -0,0 +1,19 @@
+diff --git a/3rdparty/find_dependencies.cmake b/3rdparty/find_dependencies.cmake
+index d694621ad..49a5f899e 100644
+--- a/3rdparty/find_dependencies.cmake
++++ b/3rdparty/find_dependencies.cmake
+@@ -1597,6 +1597,12 @@ else(OPEN3D_USE_ONEAPI_PACKAGES)
+             find_package(LAPACKE)
+             if(BLAS_FOUND AND LAPACK_FOUND AND LAPACKE_FOUND)
+                 message(STATUS "System BLAS/LAPACK/LAPACKE found.")
++                if(TARGET BLAS::BLAS)
++                    list(APPEND Open3D_3RDPARTY_PRIVATE_TARGETS_FROM_SYSTEM BLAS::BLAS)
++                endif()
++                if(TARGET LAPACK)
++                    list(APPEND Open3D_3RDPARTY_PRIVATE_TARGETS_FROM_SYSTEM LAPACK::LAPACK)
++                endif()
+                 list(APPEND Open3D_3RDPARTY_PRIVATE_TARGETS_FROM_SYSTEM
+                     ${BLAS_LIBRARIES}
+                     ${LAPACK_LIBRARIES}
+--
+2.45.2
diff --git a/ports/open3d/portfile.cmake b/ports/open3d/portfile.cmake
index 8a2219edc72433..b81e510eb6dbb4 100644
--- a/ports/open3d/portfile.cmake
+++ b/ports/open3d/portfile.cmake
@@ -8,6 +8,7 @@ vcpkg_from_github(
     HEAD_REF master
     PATCHES
         0001-uvatlas.patch
+        0002-blas.patch
         0003-liblzf.patch
         0004-tiny_gltf.patch
         0005-jsoncpp.patch
@@ -22,7 +23,7 @@ vcpkg_add_to_path(PREPEND "${GIT_PATH}")
 vcpkg_check_features(OUT_FEATURE_OPTIONS FEATURE_OPTIONS
     FEATURES
         "gui"            BUILD_GUI
-        "blas"           USE_BLAS
+        "openblas"       USE_OPENBLAS
         "intel-oneapi"   OPEN3D_USE_ONEAPI_PACKAGES
         "sycl"           BUILD_SYCL_MODULE
         "openmp"         WITH_OPENMP
@@ -49,7 +50,7 @@ vcpkg_cmake_configure(
         -DBUILD_AZURE_KINECT=${BUILD_AZURE_KINECT}
         -DBUILD_SYCL_MODULE=${BUILD_SYCL_MODULE}
         -DOPEN3D_USE_ONEAPI_PACKAGES=${OPEN3D_USE_ONEAPI_PACKAGES}
-        -DUSE_BLAS=${USE_BLAS}
+        -DUSE_BLAS=${USE_OPENBLAS}
         -DUSE_SYSTEM_BLAS=ON
         -DWITH_OPENMP=${WITH_OPENMP}
         -DUSE_SYSTEM_ASSIMP=ON
diff --git a/ports/open3d/vcpkg.json b/ports/open3d/vcpkg.json
index 9144020771f3cb..d02d8248751480 100644
--- a/ports/open3d/vcpkg.json
+++ b/ports/open3d/vcpkg.json
@@ -36,8 +36,8 @@
     "zeromq"
   ],
   "default-features": [
-    "blas",
     "gui",
+    "openblas",
     "openmp"
   ],
   "features": {
@@ -47,19 +47,6 @@
         "azure-kinect-sensor-sdk"
       ]
     },
-    "blas": {
-      "description": "Use BLAS/LAPACK/LAPACKE instead of MKL",
-      "dependencies": [
-        "blas",
-        "lapack",
-        {
-          "name": "lapack-reference",
-          "features": [
-            "lapacke"
-          ]
-        }
-      ]
-    },
     "gui": {
       "description": "Build the new GUI for Open3D",
       "dependencies": [
@@ -72,6 +59,18 @@
         "intel-mkl"
       ]
     },
+    "openblas": {
+      "description": "Use OpenBLAS, LAPACK, and LAPACKE",
+      "dependencies": [
+        {
+          "name": "lapack-reference",
+          "features": [
+            "lapacke"
+          ]
+        },
+        "openblas"
+      ]
+    },
     "openmp": {
       "description": "Use OpenMP multi-threading"
     },
diff --git a/versions/o-/open3d.json b/versions/o-/open3d.json
index 8d7e1e93551d99..2d7a3a0cd4a1b0 100644
--- a/versions/o-/open3d.json
+++ b/versions/o-/open3d.json
@@ -1,7 +1,7 @@
 {
   "versions": [
     {
-      "git-tree": "d9454d03d3c0f08fbd18f29cc4715b031f824bd9",
+      "git-tree": "5ee69ec3916f25be82ebd62e6e1f9044e63a18c8",
       "version-semver": "0.18.0",
       "port-version": 0
     }