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      1 # Custom GNUMakefile to rebuild nawk for the Android NDK
      2 # (C) 2011 The Android Open Source Project
      3 # yada yda yada Apache 2.0 License....
      4 
      5 BUILD_DIR ?= /tmp/ndk-$(USER)/build-awk
      6 
      7 
      8 CC       := $(HOST_CC)
      9 CFLAGS   := $(CFLAGS) -O2 -I$(BUILD_DIR) -I.
     10 LDFLAGS  := $(LDFLAGS) -Wl,-s
     11 BISON    := bison
     12 
     13 # NATIVE_CC is to build maketab which needs to run in order
     14 # to generate proctab.c from ytab.h.  Set it to host native
     15 # cc if host can run windows binary (MINGW=yes) or darwin binary
     16 # (DARWIN=yes)
     17 NATIVE_CC       ?= $(CC)
     18 NATIVE_CFLAGS   ?= $(CFLAGS)
     19 NATIVE_LDFLAGS  ?= $(LDFLAGS)
     20 
     21 MINGW := $(strip $(WIN32))
     22 TRY64 := $(strip $(TRY64))
     23 
     24 ifeq ($(V),1)
     25 hide :=
     26 else
     27 hide := @
     28 endif
     29 
     30 SOURCES := \
     31     lex.c \
     32     b.c \
     33     main.c \
     34     parse.c \
     35     lib.c \
     36     run.c \
     37     tran.c \
     38 
     39 EXE :=
     40 
     41 ifdef MINGW
     42 ifdef TRY64
     43 CC      := x86_64-pc-mingw32msvc-gcc
     44 else
     45 CC      := i586-pc-mingw32msvc-gcc
     46 endif
     47 EXE     := .exe
     48 endif
     49 
     50 PROGRAM := $(BUILD_DIR)/ndk-awk$(EXE)
     51 
     52 all: $(PROGRAM)
     53 
     54 OBJECTS :=
     55 
     56 YTAB_H := $(BUILD_DIR)/ytab.h
     57 YTAB_C := $(BUILD_DIR)/ytab.c
     58 YTAB_O := $(YTAB_C:.c=.o)
     59 $(YTAB_C): awkgram.y
     60 	@echo "Bison: ytab.c"
     61 	$(hide)$(BISON) -o $@ --defines=$(YTAB_H) awkgram.y
     62 
     63 $(YTAB_H): $(YTAB_C) awkgram.y
     64 
     65 OBJECTS += $(YTAB_O)
     66 
     67 # $1: source file
     68 # $2: object file
     69 define build-c-file
     70 OBJECTS += $2
     71 $2: $1 $(YTAB_H)
     72 	@echo "Compile: $1"
     73 	$$(hide)mkdir -p $$(dir $$@)
     74 	$$(hide)$$(CC) $$(CFLAGS) -c -o $$@ $$<
     75 endef
     76 
     77 $(foreach src,$(filter %.c,$(SOURCES)),\
     78     $(eval $(call build-c-file,$(src),$(BUILD_DIR)/$(src:%.c=%.o)))\
     79 )
     80 
     81 MAKETAB := $(BUILD_DIR)/maketab$(EXE)
     82 $(MAKETAB): maketab.c $(BUILD_DIR)/ytab.h
     83 	@echo "Native Executable: $(notdir $@)"
     84 	$(hide)$(NATIVE_CC) $(NATIVE_CFLAGS) $(NATIVE_LDFLAGS) maketab.c -o $@
     85 
     86 PROCTAB_C := $(BUILD_DIR)/proctab.c
     87 PROCTAB_O := $(PROCTAB_C:%.c=%.o)
     88 
     89 $(eval $(call build-c-file,$(PROCTAB_C),$(PROCTAB_O)))
     90 
     91 $(PROCTAB_C): $(MAKETAB) $(YTAB_H)
     92 	@echo "Gen: $(notdir $@)"
     93 	$(hide)$(MAKETAB) $(YTAB_H) > $@
     94 
     95 
     96 $(PROGRAM): $(OBJECTS)
     97 	@echo "Link: $(notdir $@)"
     98 	$(hide)$(CC) $(LDFLAGS) -o $@ $(OBJECTS) -lm
     99 
    100 clean:
    101 	$(hide)rm -f $(OBJECTS) $(PROGRAM) $(MAKETAB) $(YTAB_C) $(YTAB_H) $(PROGTAB_C)
    102