From df865158be735b6eb3deb99edd587eb9ba2646a0 Mon Sep 17 00:00:00 2001
From: Andrew Hayzen <andrew.hayzen@kdab.com>
Date: Mon, 18 Nov 2024 11:43:29 +0000
Subject: [PATCH] cmake: set RUST_CXX_NO_EXCEPTIONS when building for
 emscripten

---
 cmake/CxxQt.cmake | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/cmake/CxxQt.cmake b/cmake/CxxQt.cmake
index d4ddb66..678efa8 100644
--- a/cmake/CxxQt.cmake
+++ b/cmake/CxxQt.cmake
@@ -61,6 +61,13 @@ function(cxx_qt_import_crate)
       "QMAKE=${IMPORT_CRATE_QMAKE}"
       $<$<BOOL:${CMAKE_RUSTC_WRAPPER}>:RUSTC_WRAPPER=${CMAKE_RUSTC_WRAPPER}>)
 
+    # When using WASM ensure that we have RUST_CXX_NO_EXCEPTIONS set
+    if (${CMAKE_SYSTEM_NAME} MATCHES "Emscripten")
+        set(EMSCRIPTEN_CXX_FLAGS "${CMAKE_CXX_FLAGS} -DRUST_CXX_NO_EXCEPTIONS")
+        message(STATUS "CXX-Qt found emscripten setting CXXFLAGS=${EMPSCRIPTEN_CXX_FLAGS}")
+        corrosion_set_env_vars(${CRATE} "CXXFLAGS=${EMPSCRIPTEN_CXX_FLAGS}")
+    endif()
+
     file(MAKE_DIRECTORY "${IMPORT_CRATE_CXX_QT_EXPORT_DIR}/crates/${CRATE}/include/")
     target_include_directories(${CRATE} INTERFACE "${IMPORT_CRATE_CXX_QT_EXPORT_DIR}/crates/${CRATE}/include/")