Pass -fwasm-exceptions to also the compiler in addition to linker.

CMakeLists.txt

@@ -16,15 +16,15 @@ project(
         CXX
     VERSION 0.1.0
 )
-
-# Enforce "Unix Makefiles" because "Ninja" does not work with the Emscripten toolchain on CXX_20
-# sources.
-if(NOT CMAKE_GENERATOR MATCHES "Unix Makefiles")
-    message(
-        FATAL_ERROR
-        "This project is intended to be built with Unix Makefiles on a Unix system."
-    )
-endif()
+#
+## Enforce "Unix Makefiles" because "Ninja" does not work with the Emscripten toolchain on CXX_20
+## sources.
+#if(NOT CMAKE_GENERATOR MATCHES "Unix Makefiles")
+#    message(
+#        FATAL_ERROR
+#        "This project is intended to be built with Unix Makefiles on a Unix system."
+#    )
+#endif()
 
 # Enable compile commands by default if the generator supports it.
 if(NOT DEFINED CMAKE_EXPORT_COMPILE_COMMANDS)
@@ -72,6 +72,11 @@ message("Boost sources successfully fetched into ${boost_SOURCE_DIR}")
 
 set(CMAKE_EXECUTABLE_SUFFIX ".js" CACHE STRING "Binary type to be generated by Emscripten.")
 
+set(CLP_FFI_JS_ENABLE_EXCEPTION_FLAG
+    "-fwasm-exceptions"
+    CACHE STRING
+    "Exception flag to be enabled on both Emscripten compilers and linkers"
+)
 if(CMAKE_BUILD_TYPE MATCHES "Release")
     set(CLP_FFI_JS_EXTRA_LINKER_FLAGS
         -flto
@@ -106,7 +111,7 @@ set(CLP_FFI_JS_SRC_ZSTD
     src/submodules/zstd/lib/decompress/zstd_decompress.c
 )
 
-# Define supported environments
+# List of supported environments.
 set(CLP_FFI_JS_ENVIRONMENTS
     "node"
     "worker"
@@ -116,10 +121,11 @@ foreach(env ${CLP_FFI_JS_ENVIRONMENTS})
     set(CLP_FFI_JS_BIN_NAME "ClpFfiJs-${env}")
     add_executable(${CLP_FFI_JS_BIN_NAME})
     target_compile_features(${CLP_FFI_JS_BIN_NAME} PRIVATE cxx_std_20)
+    target_compile_options(${CLP_FFI_JS_BIN_NAME} PRIVATE ${CLP_FFI_JS_ENABLE_EXCEPTION_FLAG})
 
     set(CLP_FFI_JS_LINKER_FLAGS
+        ${CLP_FFI_JS_ENABLE_EXCEPTION_FLAG}
         ${CLP_FFI_JS_EXTRA_LINKER_FLAGS}
-        -fwasm-exceptions
         -sALLOW_MEMORY_GROWTH
         -sEXPORT_ES6
         -sMODULARIZE