$NetBSD: patch-CMakeLists.txt,v 1.7 2025/08/25 18:14:39 pho Exp $

Do not insist on old cmake policies (allows build with cmake 4).

Get X265_VERSION and X265_LATEST_TAG from outside.

Solaris ld: Provided assembler is not PIC, so we pass "-mimpure-text"
            to the compiler so it doesn't send "-ztext" to ld.

Solaris ld: Passing "-Wa,--noexecstack" to gcc will generate an ELF section
            requesting a non executable stack. I don't know if Solaris ld
            is complying or just ignoring it.

--- CMakeLists.txt.orig	2024-11-22 12:07:34.000000000 +0000
+++ CMakeLists.txt
@@ -6,15 +6,9 @@ if(NOT CMAKE_BUILD_TYPE)
         FORCE)
 endif()
 message(STATUS "cmake version ${CMAKE_VERSION}")
-if(POLICY CMP0025)
-    cmake_policy(SET CMP0025 OLD) # report Apple's Clang as just Clang
-endif()
 if(POLICY CMP0042)
     cmake_policy(SET CMP0042 NEW) # MACOSX_RPATH
 endif()
-if(POLICY CMP0054)
-    cmake_policy(SET CMP0054 OLD) # Only interpret if() arguments as variables or keywords when unquoted
-endif()
 
 project (x265)
 cmake_minimum_required (VERSION 2.8.8) # OBJECT libraries require 2.8.8
@@ -168,7 +162,7 @@ if(APPLE)
   add_definitions(-DMACOS=1)
 endif()
 
-if(${CMAKE_CXX_COMPILER_ID} STREQUAL "Clang")
+if(${CMAKE_CXX_COMPILER_ID} MATCHES "Clang|AppleClang")
     set(CLANG 1)
 endif()
 if(${CMAKE_CXX_COMPILER_ID} STREQUAL "Intel")
@@ -207,6 +201,11 @@ if(HAVE_INT_TYPES_H)
     add_definitions(-DHAVE_INT_TYPES_H=1)
 endif()
 
+check_include_files(alloca.h HAVE_ALLOCA_H)
+if(HAVE_ALLOCA_H)
+    add_definitions(-DHAVE_ALLOCA_H=1)
+endif()
+
 if(INTEL_CXX AND UNIX)
     set(GCC 1) # treat icpc roughly like gcc
 elseif(CLANG)
@@ -614,7 +613,7 @@ endif(ARM64)
 
 option(WARNINGS_AS_ERRORS "Stop compiles on first warning" OFF)
 if(WARNINGS_AS_ERRORS)
-    if(CMAKE_CXX_COMPILER_ID MATCHES "GNU|Clang")
+    if(CMAKE_CXX_COMPILER_ID MATCHES "GNU|Clang|AppleClang")
         add_definitions(-Werror)
         add_definitions(-Wno-unused)
     elseif(MSVC)
@@ -658,7 +657,6 @@ if(POWER)
     endif()
 endif()
 
-include(Version) # determine X265_VERSION and X265_LATEST_TAG
 include_directories(. common encoder "${PROJECT_BINARY_DIR}")
 
 option(ENABLE_PPA "Enable PPA profiling instrumentation" OFF)
@@ -906,7 +904,11 @@ if(ENABLE_SHARED)
         elseif(CYGWIN)
             # Cygwin is not officially supported or tested. MinGW with msys is recommended.
         else()
-            list(APPEND LINKER_OPTIONS "-Wl,-Bsymbolic,-znoexecstack")
+            if(${CMAKE_SYSTEM_NAME} MATCHES "SunOS")
+                list(APPEND LINKER_OPTIONS "-mimpure-text -Wa,--noexecstack")
+            else()
+                list(APPEND LINKER_OPTIONS "-Wl,-Bsymbolic,-znoexecstack")
+            endif()
         endif()
     endif()
     set_target_properties(x265-shared PROPERTIES SOVERSION ${X265_BUILD})