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imgui/examples/example_emscripten/Makefile

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#
# Makefile to use with emscripten
# See https://emscripten.org/docs/getting_started/downloads.html
# for installation instructions. This Makefile assumes you have
# loaded emscripten's environment.
#
# Running `make` will produce three files:
# - example_emscripten.html
# - example_emscripten.js
# - example_emscripten.wasm
#
# All three are needed to run the demo.
CC = emcc
CXX = em++
EXE = example_emscripten.html
SOURCES = main.cpp
SOURCES += ../imgui_impl_sdl.cpp ../imgui_impl_opengl3.cpp
SOURCES += ../../imgui.cpp ../../imgui_demo.cpp ../../imgui_draw.cpp ../../imgui_widgets.cpp
OBJS = $(addsuffix .o, $(basename $(notdir $(SOURCES))))
UNAME_S := $(shell uname -s)
EMS = -s USE_SDL=2 -s WASM=1
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EMS += -s ALLOW_MEMORY_GROWTH=1 -s BINARYEN_TRAP_MODE=clamp
EMS += -s DISABLE_EXCEPTION_CATCHING=1 -s NO_EXIT_RUNTIME=0
EMS += -s ASSERTIONS=1
#EMS += -s NO_FILESYSTEM=1 ## Getting "error: undefined symbol: $FS" if filesystem is removed
#EMS += -s SAFE_HEAP=1 ## Adds overhead
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CPPFLAGS = -I../ -I../../
#CPPFLAGS += -g
CPPFLAGS += -Wall -Wformat -Os
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CPPFLAGS += $(EMS)
LIBS = $(EMS)
LDFLAGS = --shell-file shell_minimal.html
##---------------------------------------------------------------------
## BUILD RULES
##---------------------------------------------------------------------
%.o:%.cpp
$(CXX) $(CPPFLAGS) $(CXXFLAGS) -c -o $@ $<
%.o:../%.cpp
$(CXX) $(CPPFLAGS) $(CXXFLAGS) -c -o $@ $<
%.o:../../%.cpp
$(CXX) $(CPPFLAGS) $(CXXFLAGS) -c -o $@ $<
%.o:../libs/gl3w/GL/%.c
$(CC) $(CPPFLAGS) $(CFLAGS) -c -o $@ $<
all: $(EXE)
@echo Build complete for $(EXE)
$(EXE): $(OBJS)
$(CXX) -o $@ $^ $(LIBS) $(LDFLAGS)
clean:
rm -f $(EXE) $(OBJS) *.js *.wasm *.wasm.pre