Remove Wasm exception handling workarounds.

libgm/CMakeLists.txt

@@ -34,19 +34,8 @@ else()
         set(CMAKE_WINDOWS_EXPORT_ALL_SYMBOLS ON)
     endif()
 endif()
-if (WASI)
-    add_definitions(
-        -DBOOST_EXCEPTION_DISABLE
-        -DBOOST_NO_EXCEPTIONS
-        -DBOOST_SP_NO_ATOMIC_ACCESS
-        -DBOOST_AC_DISABLE_THREADS
-        -DBOOST_NO_CXX11_HDR_MUTEX
-        -DBOOST_NO_CXX11_HDR_ATOMIC
-    )
-endif()
-set(boost_libs program_options)
 
-find_package(Boost REQUIRED COMPONENTS ${boost_libs})
+find_package(Boost REQUIRED COMPONENTS program_options)
 
 find_package(Git)
 
@@ -135,4 +124,4 @@ add_custom_target(
     -style=file
     -i
     ${CLANGFORMAT_FILES}
-)
+)

libgm/tools/gmpack.cpp

@@ -24,7 +24,6 @@
 #include <iostream>
 #include <stdexcept>
 #include <streambuf>
-#include "wasmexcept.hpp"
 #include "Bitstream.hpp"
 #include "Chip.hpp"
 #include "ChipConfig.hpp"

libgm/tools/gmunpack.cpp

@@ -23,7 +23,6 @@
 #include <iostream>
 #include <stdexcept>
 #include <streambuf>
-#include "wasmexcept.hpp"
 #include "Bitstream.hpp"
 #include "Chip.hpp"
 #include "ChipConfig.hpp"

libgm/tools/wasmexcept.hpp

@@ -1,25 +0,0 @@
-#if defined(__wasm)
-
-#include <cstdint>
-#include <iostream>
-
-extern "C" {
-// FIXME: WASI does not currently support exceptions.
-void *__cxa_allocate_exception(size_t thrown_size) throw() { return malloc(thrown_size); }
-bool __cxa_uncaught_exception() throw();
-void __cxa_throw(void *thrown_exception, struct std::type_info *tinfo, void (*dest)(void *)) { (void)thrown_exception; (void)tinfo; (void)dest; std::terminate(); }
-}
-
-namespace boost {
-struct source_location;
-void throw_exception(std::exception const &e) { 
-	std::cerr << "boost::exception(): " << e.what() << std::endl;
-	exit(1);
-}
-void throw_exception(std::exception const &e, boost::source_location const &) { 
-	std::cerr << "boost::exception(): " << e.what() << std::endl;
-	exit(1);
-}
-} // namespace boost
-
-#endif