From a512ee54633e59c5f2f4f1ecfa65e06640698cd0 Mon Sep 17 00:00:00 2001
From: Roy Qu <royqh1979@gmail.com>
Date: Mon, 25 Apr 2022 22:31:37 +0800
Subject: [PATCH] make ege compatible with clang

---
 CMakeLists.txt   | 5 +++++
 src/ege_head.h   | 5 +++++
 src/graphics.cpp | 4 ++++
 src/logo.cpp     | 5 +++++
 4 files changed, 19 insertions(+)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index b0a4fc92..8d3c404a 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -22,6 +22,8 @@ if (MSVC)
   message(STATUS "${TARGET_BITS}bit MSVC target: MSVC ${MSVC_VERSION}")
 elseif (CMAKE_CXX_COMPILER_ID MATCHES "GNU")
   message(STATUS "${TARGET_BITS}bit GNU target: GCC ${CMAKE_C_COMPILER_VERSION}")
+elseif (CMAKE_CXX_COMPILER_ID MATCHES "Clang")
+  message(STATUS "${TARGET_BITS}bit Clang target: Clang ${CMAKE_C_COMPILER_VERSION}")  
 else ()
   if (CMAKE_CXX_COMPILER_ID)
     message(FATAL_ERROR "Unsupported compiler: ${CMAKE_CXX_COMPILER_ID}")
@@ -37,6 +39,9 @@ macro(ege_add_executable name source)
   if (CMAKE_CXX_COMPILER_ID MATCHES "GNU")
     target_link_options(${name}
       PRIVATE -mwindows)
+  elseif (CMAKE_CXX_COMPILER_ID MATCHES "Clang")
+    target_link_options(${name}
+      PRIVATE -mwindows)      
   endif ()
 endmacro()
 
diff --git a/src/ege_head.h b/src/ege_head.h
index 113c9564..b6a529b7 100644
--- a/src/ege_head.h
+++ b/src/ege_head.h
@@ -55,6 +55,9 @@
 #	endif
 #	define COMPILER_VER     MSVC_VER SYSBITS
 #	define COMPILER_VER_W   EGE_L(MSVC_VER) SYSBITS_W
+#elif defined(__clang__)
+#	define COMPILER_VER     "Clang"    __clang_version__    SYSBITS
+#	define COMPILER_VER_W   L"Clang"  EGE_L(__clang_version__)  SYSBITS_W
 #else
 #	define GCC_VER          EGE_TOSTR(__GNUC__) "." EGE_TOSTR(__GNUC_MINOR__)
 #	define GCC_VER_W        EGE_L(EGE_TOSTR(__GNUC__)) L"." EGE_L(EGE_TOSTR(__GNUC_MINOR__))
@@ -78,11 +81,13 @@
 
 // MSVC 从 10.0（VS2010）开始有 stdint.h
 // GCC 从 4.5 开始有 stdint.h
+#ifndef __clang__
 #if _MSC_VER >= 1600 || __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 5)
 #  include <stdint.h>
 #elif !defined(_MSC_VER) || _MSC_VER > 1300
 #  include "stdint.h"
 #endif
+#endif
 
 #include <string>
 
diff --git a/src/graphics.cpp b/src/graphics.cpp
index 7f262300..cd63cd09 100755
--- a/src/graphics.cpp
+++ b/src/graphics.cpp
@@ -76,14 +76,18 @@ static int      g_initoption  = INIT_DEFAULT;
 static HWND     g_attach_hwnd = 0;
 static WNDPROC  DefWindowProcFunc = NULL;
 
+#ifndef __clang__
 #ifdef __cplusplus
 extern "C" {
 #endif
+#endif
 char* getlogodata();
 unsigned long getlogodatasize();
+#ifndef __clang__
 #ifdef __cplusplus
 }
 #endif
+#endif
 
 float EGE_PRIVATE_GetFPS(int add);
 DWORD WINAPI messageloopthread(LPVOID lpParameter);
diff --git a/src/logo.cpp b/src/logo.cpp
index b3e09b93..232cb306 100644
--- a/src/logo.cpp
+++ b/src/logo.cpp
@@ -1,7 +1,11 @@
+#ifndef __clang__
 #ifdef __cplusplus
 extern "C"
 {
 #endif
+#else
+namespace ege {
+#endif
 static unsigned char logo_res[] = {
 	255,216,255,224,0,16,74,70,73,70,0,1,1,1,0,96,
 	0,96,0,0,255,225,3,82,69,120,105,102,0,0,77,77,
@@ -979,6 +983,7 @@ unsigned long getlogodatasize() {
 char* getlogodata() {
 	return (char*)logo_res;
 }
+
 #ifdef __cplusplus
 }
 #endif