forked from Mirror/wren
130 lines
3.8 KiB
Makefile
130 lines
3.8 KiB
Makefile
# Makefile for building a single configuration of Wren. It allows the
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# following variables to be passed to it:
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#
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# MODE - The build mode, "debug" or "release".
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# If omitted, defaults to "release".
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# LANG - The language, "c" or "cpp".
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# If omitted, defaults to "c".
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# ARCH - The processor architecture, "32", "64", or nothing, which indicates
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# the compiler's default.
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# If omitted, defaults to the compiler's default.
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#
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# It builds a static library, shared library, and command-line interpreter for
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# the given configuration. Libraries are built to "lib", and the interpreter
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# is built to "bin".
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#
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# The output file is initially "wren". If in debug mode, "d" is appended to it.
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# If the language is "cpp", then "-cpp" is appended to that. If the
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# architecture is not the default then "-32" or "-64" is appended to that.
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# Then, for the libraries, the correct extension is added.
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# Files.
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CLI_HEADERS := $(wildcard src/cli/*.h)
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VM_HEADERS := $(wildcard src/vm/*.h)
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CLI_SOURCES := $(wildcard src/cli/*.c)
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VM_SOURCES := $(wildcard src/vm/*.c)
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BUILD_DIR := build
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C_WARNINGS := -Wall -Wextra -Werror -Wno-unused-parameter
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# Wren uses callbacks heavily, so -Wunused-parameter is too painful to enable.
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# Mode configuration.
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ifeq ($(MODE),debug)
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WREN := wrend
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C_OPTIONS += -O0 -DDEBUG -g
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BUILD_DIR := $(BUILD_DIR)/debug
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else
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WREN += wren
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C_OPTIONS += -Os
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BUILD_DIR := $(BUILD_DIR)/release
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endif
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# Language configuration.
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ifeq ($(LANG),cpp)
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WREN := $(WREN)-cpp
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C_OPTIONS += -std=c++98
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FILE_FLAG := -x c++
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BUILD_DIR := $(BUILD_DIR)-cpp
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else
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C_OPTIONS += -std=c99
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endif
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# Architecture configuration.
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ifeq ($(ARCH),32)
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C_OPTIONS += -m32
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WREN := $(WREN)-32
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BUILD_DIR := $(BUILD_DIR)-32
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endif
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ifeq ($(ARCH),64)
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C_OPTIONS += -m64
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WREN := $(WREN)-64
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BUILD_DIR := $(BUILD_DIR)-64
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endif
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# Some platform-specific workarounds. Note that we use "gcc" explicitly in the
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# call to get the machine name because one of these workarounds deals with $(CC)
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# itself not working.
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OS := $(lastword $(subst -, ,$(shell gcc -dumpmachine)))
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# Don't add -fPIC on Windows since it generates a warning which gets promoted
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# to an error by -Werror.
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ifeq ($(OS),mingw32)
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else ifeq ($(OS),cygwin)
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# Do nothing.
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else
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C_OPTIONS += -fPIC
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endif
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# MinGW--or at least some versions of it--default CC to "cc" but then don't
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# provide an executable named "cc". Manually point to "gcc" instead.
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ifeq ($(OS),mingw32)
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CC = GCC
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endif
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# Clang on Mac OS X has different flags and a different extension to build a
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# shared library.
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ifneq (,$(findstring darwin,$(OS)))
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SHARED_EXT := dylib
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else
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SHARED_LIB_FLAGS := -Wl,-soname,$@.so
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SHARED_EXT := so
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endif
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CFLAGS := $(C_OPTIONS) $(C_WARNINGS)
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CLI_OBJECTS := $(addprefix $(BUILD_DIR)/cli/, $(notdir $(CLI_SOURCES:.c=.o)))
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VM_OBJECTS := $(addprefix $(BUILD_DIR)/vm/, $(notdir $(VM_SOURCES:.c=.o)))
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# Targets ---------------------------------------------------------------------
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all: prep bin/$(WREN) lib/lib$(WREN).a lib/lib$(WREN).$(SHARED_EXT)
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prep:
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@mkdir -p bin lib $(BUILD_DIR)/cli $(BUILD_DIR)/vm
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# Command-line interpreter.
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bin/$(WREN): $(CLI_OBJECTS) $(VM_OBJECTS)
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@printf "%10s %-30s %s\n" $(CC) $@ "$(C_OPTIONS)"
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@$(CC) $(CFLAGS) -Isrc/include -o $@ $^ -lm
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# Static library.
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lib/lib$(WREN).a: $(VM_OBJECTS)
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@printf "%10s %-30s %s\n" $(AR) $@ "rcu"
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@$(AR) rcu $@ $^
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# Shared library.
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lib/lib$(WREN).$(SHARED_EXT): $(VM_OBJECTS)
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@printf "%10s %-30s %s\n" $(CC) $@ "$(C_OPTIONS) $(SHARED_LIB_FLAGS)"
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@$(CC) $(CFLAGS) -shared $(SHARED_LIB_FLAGS) -o $@ $^
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# CLI object files.
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$(BUILD_DIR)/cli/%.o: src/cli/%.c $(CLI_HEADERS) $(VM_HEADERS)
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@printf "%10s %-30s %s\n" $(CC) $< "$(C_OPTIONS)"
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@$(CC) -c $(CFLAGS) -Isrc/include -o $@ $(FILE_FLAG) $<
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# VM object files.
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$(BUILD_DIR)/vm/%.o: src/vm/%.c $(VM_HEADERS)
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@printf "%10s %-30s %s\n" $(CC) $< "$(C_OPTIONS)"
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@$(CC) -c $(CFLAGS) -Isrc/include -o $@ $(FILE_FLAG) $<
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