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