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 CFLAGS += -Werror-implicit-function-declaration -Wsign-compare -Wno-unused-parameter
  19 CFLAGS += -Wdeclaration-after-statement
  20 CFLAGS += $(CFLAGS_EVAL)
  21
  22 _OBJS := $(sort $(patsubst %.c,%.o,$(wildcard *.c)))
  23 VERSION_OBJS := $(filter-out version.o, $(_OBJS))
  24 OBJS := $(VERSION_OBJS) version.o
  25
  26 ALL = iw
  27
  28 ifeq ($(NO_PKG_CONFIG),)
  29 NL3xFOUND := $(shell $(PKG_CONFIG) --atleast-version=3.2 libnl-3.0 && echo Y)
  30 ifneq ($(NL3xFOUND),Y)
  31 NL31FOUND := $(shell $(PKG_CONFIG) --exact-version=3.1 libnl-3.1 && echo Y)
  32 ifneq ($(NL31FOUND),Y)
  33 NL3FOUND := $(shell $(PKG_CONFIG) --atleast-version=3 libnl-3.0 && echo Y)
  34 ifneq ($(NL3FOUND),Y)
  35 NL2FOUND := $(shell $(PKG_CONFIG) --atleast-version=2 libnl-2.0 && echo Y)
  36 ifneq ($(NL2FOUND),Y)
  37 NL1FOUND := $(shell $(PKG_CONFIG) --atleast-version=1 libnl-1 && echo Y)
  38 endif
  39 endif
  40 endif
  41 endif
  42
  43 ifeq ($(NL1FOUND),Y)
  44 NLLIBNAME = libnl-1
  45 endif
  46
  47 ifeq ($(NL2FOUND),Y)
  48 CFLAGS += -DCONFIG_LIBNL20
  49 LIBS += -lnl-genl
  50 NLLIBNAME = libnl-2.0
  51 endif
  52
  53 ifeq ($(NL3xFOUND),Y)
  54 # libnl 3.2 might be found as 3.2 and 3.0
  55 NL3FOUND = N
  56 CFLAGS += -DCONFIG_LIBNL30
  57 LIBS += -lnl-genl-3
  58 NLLIBNAME = libnl-3.0
  59 endif
  60
  61 ifeq ($(NL3FOUND),Y)
  62 CFLAGS += -DCONFIG_LIBNL30
  63 LIBS += -lnl-genl
  64 NLLIBNAME = libnl-3.0
  65 endif
  66
  67 # nl-3.1 has a broken libnl-gnl-3.1.pc file
  68 # as show by pkg-config --debug --libs --cflags --exact-version=3.1 libnl-genl-3.1;echo $?
  69 ifeq ($(NL31FOUND),Y)
  70 CFLAGS += -DCONFIG_LIBNL30
  71 LIBS += -lnl-genl
  72 NLLIBNAME = libnl-3.1
  73 endif
  74
  75 ifeq ($(NLLIBNAME),)
  76 $(error Cannot find development files for any supported version of libnl)
  77 endif
  78
  79 LIBS += $(shell $(PKG_CONFIG) --libs $(NLLIBNAME))
  80 CFLAGS += $(shell $(PKG_CONFIG) --cflags $(NLLIBNAME))
  81 endif # NO_PKG_CONFIG
  82
  83 ifeq ($(V),1)
  84 Q=
  85 NQ=true
  86 else
  87 Q=@
  88 NQ=echo
  89 endif
  90
  91 all: $(ALL)
  92
  93 version.c: version.sh $(patsubst %.o,%.c,$(VERSION_OBJS)) nl80211.h iw.h Makefile \
  94                 $(wildcard .git/index .git/refs/tags)
  95         @$(NQ) ' GEN ' $@
  96         $(Q)./version.sh $@
  97
  98 nl80211-commands.inc: nl80211.h
  99         @$(NQ) ' GEN ' $@
 100         $(Q)sed 's%^\tNL80211_CMD_%%;t n;d;:n s%^\([^=]*\),.*%\t[NL80211_CMD_\1] = \"\L\1\",%;t;d' nl80211.h | grep -v "reserved" > $@
 101
 102 %.o: %.c iw.h nl80211.h nl80211-commands.inc
 103         @$(NQ) ' CC  ' $@
 104         $(Q)$(CC) $(CFLAGS) $(CPPFLAGS) -c -o $@ $<
 105
 106 ifeq ($(IW_ANDROID_BUILD),)
 107 iw:     $(OBJS)
 108         @$(NQ) ' CC  ' iw
 109         $(Q)$(CC) $(LDFLAGS) $(OBJS) $(LIBS) -o iw
 110 endif
 111
 112 check:
 113         $(Q)$(MAKE) all CC="REAL_CC=$(CC) CHECK=\"sparse -Wall\" cgcc"
 114
 115 %.gz: %
 116         @$(NQ) ' GZIP' $<
 117         $(Q)gzip < $< > $@
 118
 119 install: iw iw.8.gz
 120         @$(NQ) ' INST iw'
 121         $(Q)$(MKDIR) $(DESTDIR)$(SBINDIR)
 122         $(Q)$(INSTALL) -m 755 iw $(DESTDIR)$(SBINDIR)
 123         @$(NQ) ' INST iw.8'
 124         $(Q)$(MKDIR) $(DESTDIR)$(MANDIR)/man8/
 125         $(Q)$(INSTALL) -m 644 iw.8.gz $(DESTDIR)$(MANDIR)/man8/
 126
 127 clean:
 128         $(Q)rm -f iw *.o *~ *.gz version.c *-stamp nl80211-commands.inc