From b43dde58f3668a00490190149f740168cb88157e Mon Sep 17 00:00:00 2001
From: Peppersawce <157759066+Peppersawce@users.noreply.github.com>
Date: Sat, 5 Apr 2025 14:18:33 +0200
Subject: [PATCH] Haiku support patch

---
 CMakeLists.txt                         | 2 +-
 libraries/ZVulkan/CMakeLists.txt       | 6 +++++-
 libraries/ZWidget/CMakeLists.txt       | 6 +++++-
 src/common/engine/i_specialpaths.h     | 2 +-
 src/common/rendering/gl_load/gl_load.c | 2 +-
 src/version.h                          | 2 ++
 6 files changed, 15 insertions(+), 5 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 0ac374e55b..92e7d67027 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -309,7 +309,7 @@ else()
 			# If we're compiling with a custom GCC on the Mac (which we know since g++-4.2 doesn't support C++11) statically link libgcc.
 			set( ALL_C_FLAGS "-static-libgcc" )
 		endif()
-	elseif( NOT MINGW )
+	elseif( NOT MINGW AND NOT HAIKU )
 		# Generic GCC/Clang requires position independent executable to be enabled explicitly
 		set( ALL_C_FLAGS "${ALL_C_FLAGS} -fPIE" )
 		set( CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -pie" )
diff --git a/libraries/ZVulkan/CMakeLists.txt b/libraries/ZVulkan/CMakeLists.txt
index 3b47b7b686..4cd713323e 100644
--- a/libraries/ZVulkan/CMakeLists.txt
+++ b/libraries/ZVulkan/CMakeLists.txt
@@ -188,7 +188,11 @@ if(WIN32)
 	add_definitions(-DUNICODE -D_UNICODE)
 else()
 	set(ZVULKAN_SOURCES ${ZVULKAN_SOURCES} ${ZVULKAN_UNIX_SOURCES})
-	set(ZVULKAN_LIBS ${CMAKE_DL_LIBS} -ldl)
+	if(NOT HAIKU)
+		set(ZVULKAN_LIBS ${CMAKE_DL_LIBS} -ldl)
+	else()
+		set(ZVULKAN_LIBS ${CMAKE_DL_LIBS})
+	endif()
 	add_definitions(-DUNIX -D_UNIX)
 	add_link_options(-pthread)
 endif()
diff --git a/libraries/ZWidget/CMakeLists.txt b/libraries/ZWidget/CMakeLists.txt
index 68c048e22e..329caf96e8 100644
--- a/libraries/ZWidget/CMakeLists.txt
+++ b/libraries/ZWidget/CMakeLists.txt
@@ -130,7 +130,11 @@ elseif(APPLE)
 	add_link_options(-pthread)
 else()
 	set(ZWIDGET_SOURCES ${ZWIDGET_SOURCES} ${ZWIDGET_SDL2_SOURCES})
-	set(ZWIDGET_LIBS ${CMAKE_DL_LIBS} -ldl)
+	if(NOT HAIKU)
+		set(ZWIDGET_LIBS ${CMAKE_DL_LIBS} -ldl)
+	else()
+		set(ZWIDGET_LIBS ${CMAKE_DL_LIBS})
+	endif()
 	add_definitions(-DUNIX -D_UNIX)
 	add_link_options(-pthread)
 endif()
diff --git a/src/common/engine/i_specialpaths.h b/src/common/engine/i_specialpaths.h
index 01710b6725..fb75230f55 100644
--- a/src/common/engine/i_specialpaths.h
+++ b/src/common/engine/i_specialpaths.h
@@ -2,7 +2,7 @@
 
 #include "zstring.h"
 
-#ifdef __unix__
+#if defined(__unix__) || defined(__HAIKU__)
 FString GetUserFile (const char *path);
 #endif
 FString M_GetAppDataPath(bool create);
diff --git a/src/common/rendering/gl_load/gl_load.c b/src/common/rendering/gl_load/gl_load.c
index d5ba4e49fe..bb2141e7c3 100644
--- a/src/common/rendering/gl_load/gl_load.c
+++ b/src/common/rendering/gl_load/gl_load.c
@@ -134,7 +134,7 @@ static PROC WinGetProcAddress(const char *name)
 	#if defined(__APPLE__)
 		#define IntGetProcAddress(name) AppleGLGetProcAddress(name)
 	#else
-		#if defined(__sgi) || defined(__sun) || defined(__unix__)
+		#if defined(__sgi) || defined(__sun) || defined(__unix__) || defined(__HAIKU__)
 			void* SDL_GL_GetProcAddress(const char* proc);
 			#define IntGetProcAddress(name) SDL_GL_GetProcAddress((const char*)name)
 			//#define IntGetProcAddress(name) PosixGetProcAddress((const GLubyte*)name)
diff --git a/src/version.h b/src/version.h
index 91f3319b54..ddfd3a346a 100644
--- a/src/version.h
+++ b/src/version.h
@@ -105,6 +105,8 @@ const char *GetVersionString();
 
 #if defined(__APPLE__) || defined(_WIN32)
 #define GAME_DIR GAMENAME
+#elif defined(__HAIKU__)
+#define GAME_DIR "config/settings/" GAMENAME
 #else
 #define GAME_DIR ".config/" GAMENAMELOWERCASE
 #endif