Fix build system

3rdparty/emilib/hash_map.hpp

@@ -14,9 +14,10 @@
 namespace emilib {
 
 // (Crydsch) fixes for standalone usage
-#define DCHECK_NE_F(x,y) assert((x) != (y))
 #define DCHECK_F(x) assert(x)
+#define DCHECK_NE_F(x,y) assert((x) != (y))
 #define DCHECK_EQ_F(x,y) assert((x) == (y))
+#define DCHECK_LT_F(val1, val2) assert((val1) < (val2))
 
 /// like std::equal_to but no need to #include <functional>
 template<typename T>

CMakeLists.txt

@@ -10,6 +10,9 @@ project("spacegame"
 set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} -O0 -ggdb")
 set(CMAKE_CXX_FLAGS_RELWITHDEBINFO "${CMAKE_CXX_FLAGS_RELWITHDEBINFO} -O0 -ggdb")
 
+# Enable LTO support in linker to handle LTO-built dependencies
+set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -flto")
+
 # Enable compiler warnings
 set(SPACEGAME_COMPILER_WARNINGS
   -Wall -Wextra -pedantic 

cmake/clang_toolchain.cmake

@@ -15,9 +15,10 @@ set(CMAKE_STRIP          /usr/bin/llvm-strip  )
 # Note: We can static link with libc++, but not entirely since we depend on dynamic
 #       libraries such as x11,glx,etc...
 # Note: Despite its name '-static-libstdc++' the option causes libc++ to be linked statically
+# When linking libc++ statically, we also need to link libc++abi
 set(CMAKE_CXX_FLAGS_INIT           "-stdlib=libc++"                )
-set(CMAKE_EXE_LINKER_FLAGS_INIT    "-fuse-ld=lld -static-libstdc++")
+set(CMAKE_EXE_LINKER_FLAGS_INIT    "-fuse-ld=lld -static-libstdc++ -lc++abi")
-set(CMAKE_MODULE_LINKER_FLAGS_INIT "-fuse-ld=lld -static-libstdc++")
+set(CMAKE_MODULE_LINKER_FLAGS_INIT "-fuse-ld=lld -static-libstdc++ -lc++abi")
-set(CMAKE_SHARED_LINKER_FLAGS_INIT "-fuse-ld=lld -static-libstdc++")
+set(CMAKE_SHARED_LINKER_FLAGS_INIT "-fuse-ld=lld -static-libstdc++ -lc++abi")
 set(CMAKE_INTERPROCEDURAL_OPTIMIZATION_RELEASE    TRUE)
 set(CMAKE_INTERPROCEDURAL_OPTIMIZATION_MINSIZEREL TRUE)

src/CMakeLists.txt

@@ -33,6 +33,8 @@ set_target_properties(spacegame PROPERTIES
 
 target_compile_definitions(spacegame PRIVATE
   $<$<CONFIG:Debug>:_DEBUG>
+  $<$<CONFIG:Debug>:BX_CONFIG_DEBUG=1>
+  $<$<NOT:$<CONFIG:Debug>>:BX_CONFIG_DEBUG=0>
 )
 
 # -m64              - Build for a 64-bit machine
@@ -55,13 +57,13 @@ target_include_directories(spacegame PRIVATE
 
 target_link_libraries(spacegame PRIVATE
   glfw
-  bgfx::bx
-  bgfx::bimg
   ${BGFX}
+  bgfx::bimg
+  bgfx::bx
   Threads::Threads
+  c++
 )
 
-
 ################## release ###################
 
 # Strip binary for release builds

src/space_math.h

@@ -8,6 +8,7 @@
 #include <utility>
 #include <algorithm>
 #include <ranges>
+#include <cstdint>
 
 // Dummy defines for broken intellisense
 // #define size_t (unsigned long int)
@@ -80,7 +81,7 @@ typedef struct color
 {
 	uint8_t r, g, b, a;
 
-	color() : r(0), g(0), b(0), a(1) {}
+	color() : r(0), g(0), b(0), a(1) {} // TODO should this be 255 ?
 	color(uint8_t _r, uint8_t _g, uint8_t _b, uint8_t _a) : r(_r), g(_g), b(_b), a(_a) {}
 } Color;