From 9330cc6345e0eed83e16f8af5aae54484c059177 Mon Sep 17 00:00:00 2001
From: Lukas Oesch <lukasoesch20@gmail.com>
Date: Wed, 8 Apr 2026 09:42:01 +0200
Subject: fix build when modules folder is missing

---
 cmake/Modules/GenerateBootableIso.cmake | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/cmake/Modules/GenerateBootableIso.cmake b/cmake/Modules/GenerateBootableIso.cmake
index b798787..39a0ebd 100644
--- a/cmake/Modules/GenerateBootableIso.cmake
+++ b/cmake/Modules/GenerateBootableIso.cmake
@@ -3,6 +3,14 @@ include_guard(GLOBAL)
 function(target_generate_bootable_iso TARGET)
     find_package("grub-mkrescue")
 
+    set(MODULES_DIR "${PROJECT_SOURCE_DIR}/arch/${CMAKE_SYSTEM_PROCESSOR}/support/modules")
+    set(COPY_MODULES_COMMAND)
+    if(EXISTS "${MODULES_DIR}")
+        set(COPY_MODULES_COMMAND
+            COMMAND "${CMAKE_COMMAND}" -E copy_directory "${MODULES_DIR}" "$<TARGET_FILE_DIR:${TARGET}>/isofs/modules"
+        )
+    endif()
+
     file(GENERATE
         OUTPUT "$<TARGET_FILE_DIR:${TARGET}>/isofs/boot/grub/grub.cfg"
         INPUT "${PROJECT_SOURCE_DIR}/arch/${CMAKE_SYSTEM_PROCESSOR}/support/grub.cfg.in"
@@ -11,7 +19,7 @@ function(target_generate_bootable_iso TARGET)
     add_custom_command(TARGET "${TARGET}"
         POST_BUILD
         COMMAND "${CMAKE_COMMAND}" -E make_directory "$<TARGET_FILE_DIR:${TARGET}>/isofs"
-        COMMAND "${CMAKE_COMMAND}" -E copy_directory "${PROJECT_SOURCE_DIR}/arch/${CMAKE_SYSTEM_PROCESSOR}/support/modules" "$<TARGET_FILE_DIR:${TARGET}>/isofs/modules"
+        ${COPY_MODULES_COMMAND}
         COMMAND "${GRUB_MKRESCUE_EXE}"
         "-o"
         "$<TARGET_FILE_DIR:${TARGET}>/${TARGET}.iso"
-- 
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