Makefile

   1 MAKEFLAGS += --no-print-directory
   2
   3 PREFIX ?= /usr
   4 SBINDIR ?= $(PREFIX)/sbin
   5 MANDIR ?= $(PREFIX)/share/man
   6 PKG_CONFIG ?= pkg-config
   7
   8 MKDIR ?= mkdir -p
   9 INSTALL ?= install
  10 CC ?= "gcc"
  11
  12 cc-option = $(shell set -e ; $(CC) $(1) -c -x c /dev/null -o /dev/null >/dev/null 2>&1 && echo '$(1)')
  13
  14 CFLAGS_EVAL := $(call cc-option,-Wstringop-overflow=4)
  15
  16 CFLAGS ?= -O2 -g
  17 CFLAGS += -Wall -Wextra -Wundef -Wstrict-prototypes -Wno-trigraphs -fno-strict-aliasing -fno-common \
  18           -Werror-implicit-function-declaration -Wsign-compare -Wno-unused-parameter \
  19           $(CFLAGS_EVAL)
  20
  21 _OBJS := $(sort $(patsubst %.c,%.o,$(wildcard *.c)))
  22 VERSION_OBJS := $(filter-out version.o, $(_OBJS))
  23 OBJS := $(VERSION_OBJS) version.o
  24
  25 ALL = iw
  26
  27 ifeq ($(NO_PKG_CONFIG),)
  28 NL3xFOUND := $(shell $(PKG_CONFIG) --atleast-version=3.2 libnl-3.0 && echo Y)
  29 ifneq ($(NL3xFOUND),Y)
  30 NL31FOUND := $(shell $(PKG_CONFIG) --exact-version=3.1 libnl-3.1 && echo Y)
  31 ifneq ($(NL31FOUND),Y)
  32 NL3FOUND := $(shell $(PKG_CONFIG) --atleast-version=3 libnl-3.0 && echo Y)
  33 ifneq ($(NL3FOUND),Y)
  34 NL2FOUND := $(shell $(PKG_CONFIG) --atleast-version=2 libnl-2.0 && echo Y)
  35 ifneq ($(NL2FOUND),Y)
  36 NL1FOUND := $(shell $(PKG_CONFIG) --atleast-version=1 libnl-1 && echo Y)
  37 endif
  38 endif
  39 endif
  40 endif
  41
  42 ifeq ($(NL1FOUND),Y)
  43 NLLIBNAME = libnl-1
  44 endif
  45
  46 ifeq ($(NL2FOUND),Y)
  47 CFLAGS += -DCONFIG_LIBNL20
  48 LIBS += -lnl-genl
  49 NLLIBNAME = libnl-2.0
  50 endif
  51
  52 ifeq ($(NL3xFOUND),Y)
  53 # libnl 3.2 might be found as 3.2 and 3.0
  54 NL3FOUND = N
  55 CFLAGS += -DCONFIG_LIBNL30
  56 LIBS += -lnl-genl-3
  57 NLLIBNAME = libnl-3.0
  58 endif
  59
  60 ifeq ($(NL3FOUND),Y)
  61 CFLAGS += -DCONFIG_LIBNL30
  62 LIBS += -lnl-genl
  63 NLLIBNAME = libnl-3.0
  64 endif
  65
  66 # nl-3.1 has a broken libnl-gnl-3.1.pc file
  67 # as show by pkg-config --debug --libs --cflags --exact-version=3.1 libnl-genl-3.1;echo $?
  68 ifeq ($(NL31FOUND),Y)
  69 CFLAGS += -DCONFIG_LIBNL30
  70 LIBS += -lnl-genl
  71 NLLIBNAME = libnl-3.1
  72 endif
  73
  74 ifeq ($(NLLIBNAME),)
  75 $(error Cannot find development files for any supported version of libnl)
  76 endif
  77
  78 LIBS += $(shell $(PKG_CONFIG) --libs $(NLLIBNAME))
  79 CFLAGS += $(shell $(PKG_CONFIG) --cflags $(NLLIBNAME))
  80 endif # NO_PKG_CONFIG
  81
  82 ifeq ($(V),1)
  83 Q=
  84 NQ=true
  85 else
  86 Q=@
  87 NQ=echo
  88 endif
  89
  90 all: $(ALL)
  91
  92 version.c: version.sh $(patsubst %.o,%.c,$(VERSION_OBJS)) nl80211.h iw.h Makefile \
  93                 $(wildcard .git/index .git/refs/tags)
  94         @$(NQ) ' GEN ' $@
  95         $(Q)./version.sh $@
  96
  97 %.o: %.c iw.h nl80211.h
  98         @$(NQ) ' CC  ' $@
  99         $(Q)$(CC) $(CFLAGS) $(CPPFLAGS) -c -o $@ $<
 100
 101 ifeq ($(IW_ANDROID_BUILD),)
 102 iw:     $(OBJS)
 103         @$(NQ) ' CC  ' iw
 104         $(Q)$(CC) $(LDFLAGS) $(OBJS) $(LIBS) -o iw
 105 endif
 106
 107 check:
 108         $(Q)$(MAKE) all CC="REAL_CC=$(CC) CHECK=\"sparse -Wall\" cgcc"
 109
 110 %.gz: %
 111         @$(NQ) ' GZIP' $<
 112         $(Q)gzip < $< > $@
 113
 114 install: iw iw.8.gz
 115         @$(NQ) ' INST iw'
 116         $(Q)$(MKDIR) $(DESTDIR)$(SBINDIR)
 117         $(Q)$(INSTALL) -m 755 iw $(DESTDIR)$(SBINDIR)
 118         @$(NQ) ' INST iw.8'
 119         $(Q)$(MKDIR) $(DESTDIR)$(MANDIR)/man8/
 120         $(Q)$(INSTALL) -m 644 iw.8.gz $(DESTDIR)$(MANDIR)/man8/
 121
 122 clean:
 123         $(Q)rm -f iw *.o *~ *.gz version.c *-stamp