From ed1749956bee2328bd96d9be7a1587be59d3e288 Mon Sep 17 00:00:00 2001
From: gouzi <530971494@qq.com>
Date: Tue, 24 Feb 2026 14:36:08 +0800
Subject: [PATCH 1/2] fix: macos dynamic link

---
 src/torchcodec/_core/CMakeLists.txt | 53 ++++++++++++++++++++++++++---
 1 file changed, 49 insertions(+), 4 deletions(-)

diff --git a/src/torchcodec/_core/CMakeLists.txt b/src/torchcodec/_core/CMakeLists.txt
index f6a02596a..bd29041af 100644
--- a/src/torchcodec/_core/CMakeLists.txt
+++ b/src/torchcodec/_core/CMakeLists.txt
@@ -8,12 +8,50 @@ find_package(pybind11 REQUIRED)
 #find_package(Torch REQUIRED)
 set(TORCH_CXX_FLAGS "")
 
+function(resolve_paddle_library out_var)
+    foreach(candidate IN LISTS ARGN)
+        if(EXISTS "${candidate}")
+            set(${out_var} "${candidate}" PARENT_SCOPE)
+            return()
+        endif()
+    endforeach()
+    message(FATAL_ERROR "Unable to locate Paddle library for ${out_var}. Tried: ${ARGN}")
+endfunction()
+
+if(APPLE)
+    # Paddle on macOS ships libpaddle as .so, while runtime deps are .dylib.
+    set(PADDLE_LIBPADDLE_CANDIDATES "${PADDLE_PATH}/base/libpaddle.so")
+    set(PADDLE_LIBCOMMON_CANDIDATES "${PADDLE_PATH}/libs/libcommon.dylib")
+    set(PADDLE_LIBPHI_CORE_CANDIDATES "${PADDLE_PATH}/libs/libphi_core.dylib")
+elseif(WIN32)
+    set(PADDLE_LIBPADDLE_CANDIDATES
+        "${PADDLE_PATH}/base/libpaddle.dll"
+        "${PADDLE_PATH}/base/libpaddle.lib"
+    )
+    set(PADDLE_LIBCOMMON_CANDIDATES
+        "${PADDLE_PATH}/libs/libcommon.dll"
+        "${PADDLE_PATH}/libs/common.dll"
+    )
+    set(PADDLE_LIBPHI_CORE_CANDIDATES
+        "${PADDLE_PATH}/libs/libphi_core.dll"
+        "${PADDLE_PATH}/libs/phi_core.dll"
+    )
+else()
+    set(PADDLE_LIBPADDLE_CANDIDATES "${PADDLE_PATH}/base/libpaddle.so")
+    set(PADDLE_LIBCOMMON_CANDIDATES "${PADDLE_PATH}/libs/libcommon.so")
+    set(PADDLE_LIBPHI_CORE_CANDIDATES "${PADDLE_PATH}/libs/libphi_core.so")
+endif()
+
+resolve_paddle_library(PADDLE_LIBPADDLE ${PADDLE_LIBPADDLE_CANDIDATES})
+resolve_paddle_library(PADDLE_LIBCOMMON ${PADDLE_LIBCOMMON_CANDIDATES})
+resolve_paddle_library(PADDLE_LIBPHI_CORE ${PADDLE_LIBPHI_CORE_CANDIDATES})
+
 set(
     TORCH_LIBRARIES
-    "${PADDLE_PATH}/base/libpaddle.so"
-    "${PADDLE_PATH}/libs/libcommon.so"
+    "${PADDLE_LIBPADDLE}"
+    "${PADDLE_LIBCOMMON}"
     # "${PADDLE_PATH}/libs/libphi.so"  # currently libphi.so is static linked, we need remove it when it's shared linked
-    "${PADDLE_PATH}/libs/libphi_core.so"
+    "${PADDLE_LIBPHI_CORE}"
 )
 set(
     TORCH_INSTALL_PREFIX
@@ -82,9 +120,16 @@ function(make_torchcodec_sublibrary
         ${library_name}
         PUBLIC
         ${library_dependencies}
-        "-Wl,--as-needed"
     )
 
+    if(UNIX AND NOT APPLE)
+        target_link_options(
+            ${library_name}
+            PUBLIC
+            "-Wl,--as-needed"
+        )
+    endif()
+
 endfunction()
 
 function(make_torchcodec_libraries

From d249d96fee54ae0ff61eb2a90cf76c971428af96 Mon Sep 17 00:00:00 2001
From: gouzi <530971494@qq.com>
Date: Wed, 25 Feb 2026 15:43:52 +0800
Subject: [PATCH 2/2] fix macos dynamic link error

---
 src/torchcodec/_core/CMakeLists.txt | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/torchcodec/_core/CMakeLists.txt b/src/torchcodec/_core/CMakeLists.txt
index bd29041af..7f698fd73 100644
--- a/src/torchcodec/_core/CMakeLists.txt
+++ b/src/torchcodec/_core/CMakeLists.txt
@@ -130,6 +130,14 @@ function(make_torchcodec_sublibrary
         )
     endif()
 
+    if(APPLE)
+        target_link_options(
+            ${library_name}
+            PUBLIC
+            "LINKER:-undefined,dynamic_lookup"
+        )
+    endif()
+
 endfunction()
 
 function(make_torchcodec_libraries