nixos-config/pkgs/tic-80/change-cmake.patch

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 964a44d..3ae22ad 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -262,13 +262,13 @@ message("BUILD_WITH_MRUBY: ${BUILD_WITH_MRUBY}")
 
 if(BUILD_WITH_MRUBY)
     set(MRUBY_BUILDDIR ${CMAKE_SOURCE_DIR}/build/mruby)
-    set(MRUBY_DIR ${THIRDPARTY_DIR}/mruby)
+    set(MRUBY_DIR @mruby@)
     if(ANDROID)
         set(MRUBY_CONFIG ${MRUBY_BUILDDIR}/tic_android.rb)
     else()
         set(MRUBY_CONFIG ${MRUBY_BUILDDIR}/tic_default.rb)
     endif()
-    set(MRUBY_LIB ${MRUBY_DIR}/build/target/lib/libmruby.a)
+    set(MRUBY_LIB ${MRUBY_DIR}/lib/libmruby.a)
 
     if(MSVC)
         set(MRUBY_TOOLCHAIN visualcpp)
@@ -286,26 +286,6 @@ if(BUILD_WITH_MRUBY)
         set(MRUBY_RAKE_EXTRA_OPTS "${MRUBY_RAKE_EXTRA_OPTS} ANDROID_NDK_HOME=${ANDROID_NDK_HOME}")
     endif()
 
-    ExternalProject_Add(mruby_vendor
-        SOURCE_DIR         ${MRUBY_DIR}
-        CONFIGURE_COMMAND  ""
-        BUILD_IN_SOURCE    TRUE
-        BUILD_COMMAND
-            ${RAKE} clean all "MRUBY_CONFIG=${MRUBY_CONFIG}"
-                "TARGET_CC=\"${CMAKE_C_COMPILER}\""
-                "TARGET_AR=\"${CMAKE_AR}\""
-                "TARGET_CFLAGS=${CMAKE_C_FLAGS} ${CMAKE_C_FLAGS_${BUILD_TYPE_UC}}"
-                "TARGET_LDFLAGS=${CMAKE_EXE_LINKER_FLAGS} ${CMAKE_LINKER_FLAGS_${BUILD_TYPE_UC}}"
-                "BUILD_TYPE=${BUILD_TYPE_UC}"
-                "MRUBY_SYSROOT=${MRUBY_SYSROOT}"
-                "MRUBY_TOOLCHAIN=${MRUBY_TOOLCHAIN}"
-                "ANDROID_ARCH=${CMAKE_ANDROID_ARCH_ABI}"
-                "ANDROID_PLATFORM=android-${CMAKE_SYSTEM_VERSION}"
-                ${MRUBY_RAKE_EXTRA_OPTS}
-        INSTALL_COMMAND    ""
-        BUILD_BYPRODUCTS   ${MRUBY_LIB}
-    )
-
     add_library(mruby STATIC IMPORTED GLOBAL)
     set_property(TARGET mruby APPEND
         PROPERTY IMPORTED_LOCATION              ${MRUBY_LIB}
@@ -313,7 +293,6 @@ if(BUILD_WITH_MRUBY)
     set_property(TARGET mruby APPEND
         PROPERTY INTERFACE_INCLUDE_DIRECTORIES  ${MRUBY_DIR}/include
     )
-    add_dependencies(mruby mruby_vendor)
 endif()
 
 ################################