fix. building neoLegacy on linux

not sure if bundling an exe file is the best way to do this but oh well

CMakeLists.txt

@@ -96,11 +96,62 @@ if(PLATFORM_NAME STREQUAL "Windows64")
 endif()
 list(APPEND MINECRAFT_SHARED_DEFINES ${PLATFORM_DEFINES})
 
+# handle fxc shader compilation on non-windows platforms
+if(CMAKE_HOST_UNIX AND CMAKE_CROSSCOMPILING AND PLATFORM_NAME STREQUAL "Windows64")
+  set(_LCE_FXC_CANDIDATES
+    "${CMAKE_SOURCE_DIR}/Minecraft.Client/Windows64/Shaders/fxc.exe"
+    "${CMAKE_SOURCE_DIR}/Minecraft.Client/Windows64/4JLibs/impls/Windows_Libs/Render/shaders/fxc.exe"
+  )
+
+  unset(LCE_FXC_EXE)
+  foreach(_LCE_FXC_CANDIDATE IN LISTS _LCE_FXC_CANDIDATES)
+    if(EXISTS "${_LCE_FXC_CANDIDATE}")
+      set(LCE_FXC_EXE "${_LCE_FXC_CANDIDATE}")
+      break()
+    endif()
+  endforeach()
+
+  if(LCE_FXC_EXE)
+    find_program(LCE_WINE_PROGRAM NAMES wine)
+    if(NOT LCE_WINE_PROGRAM)
+      message(FATAL_ERROR "Found fxc.exe at '${LCE_FXC_EXE}', but could not find wine in the system PATH.")
+    endif()
+
+    set(_LCE_FXC_WRAPPER_DIR "${CMAKE_BINARY_DIR}/tools")
+    set(_LCE_FXC_WRAPPER "${_LCE_FXC_WRAPPER_DIR}/fxc")
+    file(MAKE_DIRECTORY "${_LCE_FXC_WRAPPER_DIR}")
+    configure_file(
+      "${CMAKE_SOURCE_DIR}/cmake/FxcWineWrapper.sh.in"
+      "${_LCE_FXC_WRAPPER}"
+      @ONLY
+    )
+    file(CHMOD "${_LCE_FXC_WRAPPER}"
+      PERMISSIONS
+      OWNER_READ OWNER_WRITE OWNER_EXECUTE
+      GROUP_READ GROUP_EXECUTE
+      WORLD_READ WORLD_EXECUTE
+    )
+
+    set(FXC_COMPILER "${_LCE_FXC_WRAPPER}" CACHE FILEPATH "Path to FXC compiler" FORCE)
+    message(STATUS "Translating FXC through Wine: ${LCE_WINE_PROGRAM} ${LCE_FXC_EXE}")
+  endif()
+endif()
+
 # ---
 # Sources
 # ---
 add_subdirectory("Minecraft.Client/${PLATFORM_NAME}/4JLibs")
 
+if(CMAKE_CROSSCOMPILING AND CMAKE_CXX_COMPILER_ID STREQUAL "Clang")
+  # clang apparently doesnt like whatever __m128 is so we gotta define it manually
+  if(TARGET 4JLibs.${PLATFORM_NAME}.Render)
+    target_compile_definitions(4JLibs.${PLATFORM_NAME}.Render PRIVATE
+      _XM_NO_INTRINSICS_
+      m128_f32=vector4_f32
+    )
+  endif()
+endif()
+
 add_subdirectory(Minecraft.World)
 add_subdirectory(Minecraft.Client)
 if(PLATFORM_NAME STREQUAL "Windows64") # Server is only supported on Windows for now

build-linux.sh

@@ -17,7 +17,7 @@ warn()    { echo -e "${YELLOW}[warn]${NC} $*"; }
 die()     { echo -e "${RED}[error]${NC} $*" >&2; exit 1; }
 check_deps() {
     local missing=()
-    local deps=(clang-cl lld-link llvm-rc llvm-ml llvm-lib llvm-mt cmake ninja xwin rsync)
+    local deps=(clang-cl lld-link llvm-rc llvm-ml llvm-lib llvm-mt cmake ninja xwin rsync wine)
     for dep in "${deps[@]}"; do
         command -v "$dep" &>/dev/null || missing+=("$dep")
     done

cmake/FxcWineWrapper.sh.in

@@ -0,0 +1,68 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+map_to_windows_path() {
+  local v="$1"
+  if [[ "$v" == /*/* ]]; then
+    winepath -w "$v" 2>/dev/null || printf '%s' "$v"
+  else
+    printf '%s' "$v"
+  fi
+}
+
+args=()
+out_header=""
+expect_out_header=0
+for arg in "$@"; do
+  if [[ "$expect_out_header" -eq 1 ]]; then
+    out_header="$arg"
+    expect_out_header=0
+  elif [[ "$arg" == "/Fh" ]]; then
+    expect_out_header=1
+  fi
+
+  args+=("$(map_to_windows_path "$arg")")
+done
+
+"@LCE_WINE_PROGRAM@" "@LCE_FXC_EXE@" "${args[@]}"
+status=$?
+
+if [[ "$status" -eq 0 && -n "$out_header" && -f "$out_header" ]]; then
+  tmp="${out_header}.tmp.$$"
+  # normalize CRLF and #endif arguments
+  LC_ALL=C awk '
+    BEGIN {
+      has_if0 = 0
+      has_endif = 0
+      inserted = 0
+    }
+    {
+      sub(/\r$/, "")
+
+      if (index($0, "#if 0") == 1) {
+        has_if0 = 1
+      }
+
+      if (index($0, "#endif") > 0) {
+        print "#endif"
+        has_endif = 1
+        next
+      }
+
+      if (has_if0 && !has_endif && !inserted && index($0, "const BYTE ") == 1) {
+        print "#endif"
+        inserted = 1
+        has_endif = 1
+      }
+
+      print $0
+    }
+    END {
+      if (has_if0 && !has_endif) {
+        print "#endif"
+      }
+    }
+  ' "$out_header" > "$tmp" && mv "$tmp" "$out_header"
+fi
+
+exit "$status"