Initial community commit

Src/external_dependencies/openmpt-trunk/build/make/config-emscripten.mk

@@ -0,0 +1,160 @@
+
+CC  = emcc -c
+CXX = em++ -c
+LD  = em++
+AR  = emar
+LINK.cc = em++ $(CXXFLAGS) $(CPPFLAGS) $(LDFLAGS) $(TARGET_ARCH)
+
+EMSCRIPTEN_TARGET?=default
+EMSCRIPTEN_THREADS?=0
+EMSCRIPTEN_PORTS?=0
+
+ifneq ($(STDCXX),)
+CXXFLAGS_STDCXX = -std=$(STDCXX)
+else
+ifeq ($(shell printf '\n' > bin/empty.cpp ; if $(CXX) -std=c++17 -c bin/empty.cpp -o bin/empty.out > /dev/null 2>&1 ; then echo 'c++17' ; fi ), c++17)
+CXXFLAGS_STDCXX = -std=c++17
+endif
+endif
+CFLAGS_STDC = -std=c99
+CXXFLAGS += $(CXXFLAGS_STDCXX)
+CFLAGS += $(CFLAGS_STDC)
+
+CPPFLAGS +=
+CXXFLAGS += -fPIC
+CFLAGS   += -fPIC
+LDFLAGS  +=
+LDLIBS   +=
+ARFLAGS  := rcs
+
+ifeq ($(EMSCRIPTEN_THREADS),1)
+CXXFLAGS += -pthread
+CFLAGS   += -pthread
+LDFLAGS  += -pthread
+endif
+
+ifeq ($(EMSCRIPTEN_PORTS),1)
+CXXFLAGS += -s USE_ZLIB=1 -sUSE_MPG123=1 -sUSE_OGG=1 -sUSE_VORBIS=1 -DMPT_WITH_ZLIB -DMPT_WITH_MPG123 -DMPT_WITH_VORBIS -DMPT_WITH_VORBISFI
+CFLAGS   += -s USE_ZLIB=1 -sUSE_MPG123=1 -sUSE_OGG=1 -sUSE_VORBIS=1 -DMPT_WITH_ZLIB -DMPT_WITH_MPG123 -DMPT_WITH_VORBIS -DMPT_WITH_VORBISFI
+LDFLAGS  += -s USE_ZLIB=1 -sUSE_MPG123=1 -sUSE_OGG=1 -sUSE_VORBIS=1
+NO_MINIZ=1
+NO_MINIMP3=1
+NO_STBVORBIS=1
+endif
+
+CXXFLAGS += -Oz
+CFLAGS   += -Oz
+LDFLAGS  += -Oz
+
+# Enable LTO as recommended by Emscripten
+#CXXFLAGS += -flto=thin
+#CFLAGS   += -flto=thin
+#LDFLAGS  += -flto=thin -Wl,--thinlto-jobs=all
+# As per recommendation in <https://github.com/emscripten-core/emscripten/issues/15638#issuecomment-982772770>,
+# thinLTO is not as well tested as full LTO. Stick to full LTO for now.
+CXXFLAGS += -flto
+CFLAGS   += -flto
+LDFLAGS  += -flto
+
+ifeq ($(EMSCRIPTEN_TARGET),default)
+# emits whatever is emscripten's default, currently (1.38.8) this is the same as "wasm" below.
+CPPFLAGS += -DMPT_BUILD_WASM
+CXXFLAGS += 
+CFLAGS   += 
+LDFLAGS  += 
+
+LDFLAGS += -s ALLOW_MEMORY_GROWTH=1
+
+else ifeq ($(EMSCRIPTEN_TARGET),all)
+# emits native wasm AND javascript with full wasm optimizations.
+CPPFLAGS += -DMPT_BUILD_WASM
+CXXFLAGS += 
+CFLAGS   += 
+LDFLAGS  += -s WASM=2 -s LEGACY_VM_SUPPORT=1 -Wno-transpile
+
+LDFLAGS += -s ALLOW_MEMORY_GROWTH=1
+
+else ifeq ($(EMSCRIPTEN_TARGET),audioworkletprocessor)
+# emits an es6 module in a single file suitable for use in an AudioWorkletProcessor
+CPPFLAGS += -DMPT_BUILD_WASM -DMPT_BUILD_AUDIOWORKLETPROCESSOR
+CXXFLAGS += 
+CFLAGS   += 
+LDFLAGS  += -s WASM=1 -s WASM_ASYNC_COMPILATION=0 -s MODULARIZE=1 -s EXPORT_ES6=1 -s SINGLE_FILE=1
+
+LDFLAGS += -s ALLOW_MEMORY_GROWTH=1
+
+else ifeq ($(EMSCRIPTEN_TARGET),wasm)
+# emits native wasm.
+CPPFLAGS += -DMPT_BUILD_WASM
+CXXFLAGS += 
+CFLAGS   += 
+LDFLAGS  += -s WASM=1
+
+LDFLAGS += -s ALLOW_MEMORY_GROWTH=1
+
+else ifeq ($(EMSCRIPTEN_TARGET),js)
+# emits only plain javascript with plain javascript focused optimizations.
+CPPFLAGS += -DMPT_BUILD_ASMJS
+CXXFLAGS += 
+CFLAGS   += 
+LDFLAGS  += -s WASM=0 -s LEGACY_VM_SUPPORT=1 -Wno-transpile
+
+LDFLAGS += -s ALLOW_MEMORY_GROWTH=1
+
+endif
+
+CXXFLAGS += -s DISABLE_EXCEPTION_CATCHING=0
+CFLAGS   += -s DISABLE_EXCEPTION_CATCHING=0 -fno-strict-aliasing
+LDFLAGS  += -s DISABLE_EXCEPTION_CATCHING=0 -s ERROR_ON_UNDEFINED_SYMBOLS=1 -s ERROR_ON_MISSING_LIBRARIES=1 -s EXPORT_NAME="'libopenmpt'"
+
+include build/make/warnings-clang.mk
+
+REQUIRES_RUNPREFIX=1
+
+EXESUFFIX=.js
+SOSUFFIX=.js
+RUNPREFIX=node 
+TEST_LDFLAGS= --pre-js build/make/test-pre.js -lnodefs.js 
+
+ifeq ($(EMSCRIPTEN_THREADS),1)
+RUNPREFIX+=--experimental-wasm-threads --experimental-wasm-bulk-memory 
+endif
+
+DYNLINK=0
+SHARED_LIB=1
+STATIC_LIB=0
+EXAMPLES=1
+OPENMPT123=0
+SHARED_SONAME=0
+NO_SHARED_LINKER_FLAG=1
+
+# Disable the generic compiler optimization flags as emscripten is sufficiently different.
+# Optimization flags are hard-coded for emscripten in this file.
+DEBUG=0
+OPTIMIZE=0
+OPTIMIZE_SIZE=0
+
+IS_CROSS=1
+
+ifeq ($(ALLOW_LGPL),1)
+LOCAL_ZLIB=1
+LOCAL_MPG123=1
+LOCAL_OGG=1
+LOCAL_VORBIS=1
+else
+NO_ZLIB=1
+NO_MPG123=1
+NO_OGG=1
+NO_VORBIS=1
+NO_VORBISFILE=1
+endif
+NO_LTDL=1
+NO_DL=1
+NO_PORTAUDIO=1
+NO_PORTAUDIOCPP=1
+NO_PULSEAUDIO=1
+NO_SDL=1
+NO_SDL2=1
+NO_FLAC=1
+NO_SNDFILE=1
+