| 1 | # |
| 2 | # Cross Platform Makefile |
| 3 | # Compatible with MSYS2/MINGW, Ubuntu 14.04.1+ and Mac OS X |
| 4 | # |
| 5 | # Important: This is a "null backend" application, with no visible output or interaction! |
| 6 | # This is used for testing purpose and continuous integration, and has little use for end-user. |
| 7 | # |
| 8 | |
| 9 | # Options |
| 10 | WITH_EXTRA_WARNINGS ?= 0 |
| 11 | WITH_FREETYPE ?= 0 |
| 12 | |
| 13 | EXE = example_null |
| 14 | IMGUI_DIR = ../.. |
| 15 | SOURCES = main.cpp |
| 16 | SOURCES += $(IMGUI_DIR)/imgui.cpp $(IMGUI_DIR)/imgui_demo.cpp $(IMGUI_DIR)/imgui_draw.cpp $(IMGUI_DIR)/imgui_tables.cpp $(IMGUI_DIR)/imgui_widgets.cpp |
| 17 | OBJS = $(addsuffix .o, $(basename $(notdir $(SOURCES)))) |
| 18 | UNAME_S := $(shell uname -s) |
| 19 | |
| 20 | CXXFLAGS += -std=c++11 -I$(IMGUI_DIR) |
| 21 | CXXFLAGS += -g -Wall -Wformat |
| 22 | LIBS = |
| 23 | |
| 24 | # We use the WITH_EXTRA_WARNINGS flag on our CI setup to eagerly catch zealous warnings |
| 25 | ifeq ($(WITH_EXTRA_WARNINGS), 1) |
| 26 | CXXFLAGS += -Wno-zero-as-null-pointer-constant -Wno-double-promotion -Wno-variadic-macros |
| 27 | endif |
| 28 | |
| 29 | # We use the WITH_FREETYPE flag on our CI setup to test compiling misc/freetype/imgui_freetype.cpp |
| 30 | # (only supported on Linux, and note that the imgui_freetype code currently won't be executed) |
| 31 | ifeq ($(WITH_FREETYPE), 1) |
| 32 | SOURCES += $(IMGUI_DIR)/misc/freetype/imgui_freetype.cpp |
| 33 | CXXFLAGS += $(shell pkg-config --cflags freetype2) |
| 34 | LIBS += $(shell pkg-config --libs freetype2) |
| 35 | endif |
| 36 | |
| 37 | ##--------------------------------------------------------------------- |
| 38 | ## BUILD FLAGS PER PLATFORM |
| 39 | ##--------------------------------------------------------------------- |
| 40 | |
| 41 | ifeq ($(UNAME_S), Linux) #LINUX |
| 42 | ECHO_MESSAGE = "Linux" |
| 43 | ifeq ($(WITH_EXTRA_WARNINGS), 1) |
| 44 | CXXFLAGS += -Wextra -Wpedantic |
| 45 | ifeq ($(shell $(CXX) -v 2>&1 | grep -c "clang version"), 1) |
| 46 | CXXFLAGS += -Wshadow -Wsign-conversion |
| 47 | endif |
| 48 | endif |
| 49 | CFLAGS = $(CXXFLAGS) |
| 50 | endif |
| 51 | |
| 52 | ifeq ($(UNAME_S), Darwin) #APPLE |
| 53 | ECHO_MESSAGE = "Mac OS X" |
| 54 | ifeq ($(WITH_EXTRA_WARNINGS), 1) |
| 55 | CXXFLAGS += -Weverything -Wno-reserved-id-macro -Wno-c++98-compat-pedantic -Wno-padded -Wno-poison-system-directories |
| 56 | endif |
| 57 | CFLAGS = $(CXXFLAGS) |
| 58 | endif |
| 59 | |
| 60 | ifeq ($(OS), Windows_NT) |
| 61 | ECHO_MESSAGE = "MinGW" |
| 62 | ifeq ($(WITH_EXTRA_WARNINGS), 1) |
| 63 | CXXFLAGS += -Wextra -Wpedantic |
| 64 | endif |
| 65 | LIBS += -limm32 |
| 66 | CFLAGS = $(CXXFLAGS) |
| 67 | endif |
| 68 | |
| 69 | ##--------------------------------------------------------------------- |
| 70 | ## BUILD RULES |
| 71 | ##--------------------------------------------------------------------- |
| 72 | |
| 73 | %.o:%.cpp |
| 74 | $(CXX) $(CXXFLAGS) -c -o $@ $< |
| 75 | |
| 76 | %.o:$(IMGUI_DIR)/%.cpp |
| 77 | $(CXX) $(CXXFLAGS) -c -o $@ $< |
| 78 | |
| 79 | %.o:$(IMGUI_DIR)/backends/%.cpp |
| 80 | $(CXX) $(CXXFLAGS) -c -o $@ $< |
| 81 | |
| 82 | %.o:$(IMGUI_DIR)/misc/freetype/%.cpp |
| 83 | $(CXX) $(CXXFLAGS) -c -o $@ $< |
| 84 | |
| 85 | all: $(EXE) |
| 86 | @echo Build complete for $(ECHO_MESSAGE) |
| 87 | |
| 88 | $(EXE): $(OBJS) |
| 89 | $(CXX) -o $@ $^ $(CXXFLAGS) $(LIBS) |
| 90 | |
| 91 | clean: |
| 92 | rm -f $(EXE) $(OBJS) |