--include .config
-
MAKEFLAGS += --no-print-directory
PREFIX ?= /usr
-BINDIR ?= $(PREFIX)/bin
+SBINDIR ?= $(PREFIX)/sbin
MANDIR ?= $(PREFIX)/share/man
+PKG_CONFIG ?= pkg-config
MKDIR ?= mkdir -p
INSTALL ?= install
CC ?= "gcc"
-CFLAGS += -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs -fno-strict-aliasing -fno-common -Werror-implicit-function-declaration `pkg-config --cflags libnl-1`
-CFLAGS += -O2 -g
-LDFLAGS += `pkg-config --libs libnl-1`
-NLVERSION = 1.0
+cc-option = $(shell set -e ; $(CC) $(1) -c -x c /dev/null -o /dev/null >/dev/null 2>&1 && echo '$(1)')
+
+CFLAGS_EVAL := $(call cc-option,-Wstringop-overflow=4)
+
+CFLAGS ?= -O2 -g
+CFLAGS += -Wall -Wextra -Wundef -Wstrict-prototypes -Wno-trigraphs -fno-strict-aliasing -fno-common
+CFLAGS += -Werror-implicit-function-declaration -Wsign-compare -Wno-unused-parameter
+CFLAGS += -Wdeclaration-after-statement
+CFLAGS += $(CFLAGS_EVAL)
+CFLAGS += $(EXTRA_CFLAGS)
+
+_OBJS := $(sort $(patsubst %.c,%.o,$(wildcard *.c)))
+VERSION_OBJS := $(filter-out version.o, $(_OBJS))
+OBJS := $(VERSION_OBJS) version.o
-OBJS = iw.o info.o phy.o interface.o station.o util.o mpath.o reg.o mesh.o genl.o scan.o
ALL = iw
+ifeq ($(NO_PKG_CONFIG),)
+NL3xFOUND := $(shell $(PKG_CONFIG) --atleast-version=3.2 libnl-3.0 && echo Y)
+ifneq ($(NL3xFOUND),Y)
+NL31FOUND := $(shell $(PKG_CONFIG) --exact-version=3.1 libnl-3.1 && echo Y)
+ifneq ($(NL31FOUND),Y)
+NL3FOUND := $(shell $(PKG_CONFIG) --atleast-version=3 libnl-3.0 && echo Y)
+ifneq ($(NL3FOUND),Y)
+NL2FOUND := $(shell $(PKG_CONFIG) --atleast-version=2 libnl-2.0 && echo Y)
+ifneq ($(NL2FOUND),Y)
+NL1FOUND := $(shell $(PKG_CONFIG) --atleast-version=1 libnl-1 && echo Y)
+endif
+endif
+endif
+endif
+
+ifeq ($(NL1FOUND),Y)
+NLLIBNAME = libnl-1
+endif
+
+ifeq ($(NL2FOUND),Y)
+override CFLAGS += -DCONFIG_LIBNL20
+override LIBS += -lnl-genl
+NLLIBNAME = libnl-2.0
+endif
+
+ifeq ($(NL3xFOUND),Y)
+# libnl 3.2 might be found as 3.2 and 3.0
+NL3FOUND = N
+override CFLAGS += -DCONFIG_LIBNL30
+override LIBS += -lnl-genl-3
+NLLIBNAME = libnl-3.0
+endif
+
+ifeq ($(NL3FOUND),Y)
+override CFLAGS += -DCONFIG_LIBNL30
+override LIBS += -lnl-genl
+NLLIBNAME = libnl-3.0
+endif
+
+# nl-3.1 has a broken libnl-gnl-3.1.pc file
+# as show by pkg-config --debug --libs --cflags --exact-version=3.1 libnl-genl-3.1;echo $?
+ifeq ($(NL31FOUND),Y)
+override CFLAGS += -DCONFIG_LIBNL30
+override LIBS += -lnl-genl
+NLLIBNAME = libnl-3.1
+endif
+
+ifeq ($(NLLIBNAME),)
+$(error Cannot find development files for any supported version of libnl)
+endif
+
+override LIBS += $(shell $(PKG_CONFIG) --libs $(NLLIBNAME))
+override CFLAGS += $(shell $(PKG_CONFIG) --cflags $(NLLIBNAME))
+endif # NO_PKG_CONFIG
+
ifeq ($(V),1)
Q=
NQ=true
NQ=echo
endif
-all: version_check $(ALL)
-
-version_check:
- @if ! pkg-config --atleast-version=$(NLVERSION) libnl-1; then echo "You need at least libnl version $(NLVERSION)"; exit 1; fi
+all: $(ALL)
+version.c: version.sh $(patsubst %.o,%.c,$(VERSION_OBJS)) nl80211.h iw.h Makefile \
+ $(wildcard .git/index .git/refs/tags)
+ @$(NQ) ' GEN ' $@
+ $(Q)./version.sh $@
-version.h: version.sh
- @$(NQ) ' GEN version.h'
- $(Q)./version.sh
+nl80211-commands.inc: nl80211.h
+ @$(NQ) ' GEN ' $@
+ $(Q)sed 's%^\tNL80211_CMD_%%;t n;d;:n s%^\([^=]*\),.*%\t[NL80211_CMD_\1] = \"\L\1\",%;t;d' nl80211.h | grep -v "reserved" > $@
-%.o: %.c iw.h version.h
+%.o: %.c iw.h nl80211.h nl80211-commands.inc
@$(NQ) ' CC ' $@
- $(Q)$(CC) $(CFLAGS) -c -o $@ $<
+ $(Q)$(CC) $(CFLAGS) $(CPPFLAGS) -c -o $@ $<
+ifeq ($(IW_ANDROID_BUILD),)
iw: $(OBJS)
@$(NQ) ' CC ' iw
- $(Q)$(CC) $(LDFLAGS) $(OBJS) -o iw
+ $(Q)$(CC) $(LDFLAGS) $(OBJS) $(LIBS) -o iw
+endif
check:
$(Q)$(MAKE) all CC="REAL_CC=$(CC) CHECK=\"sparse -Wall\" cgcc"
install: iw iw.8.gz
@$(NQ) ' INST iw'
- $(Q)$(MKDIR) $(DESTDIR)$(BINDIR)
- $(Q)$(INSTALL) -m 755 -t $(DESTDIR)$(BINDIR) iw
+ $(Q)$(MKDIR) $(DESTDIR)$(SBINDIR)
+ $(Q)$(INSTALL) -m 755 iw $(DESTDIR)$(SBINDIR)
@$(NQ) ' INST iw.8'
$(Q)$(MKDIR) $(DESTDIR)$(MANDIR)/man8/
- $(Q)$(INSTALL) -m 644 -t $(DESTDIR)$(MANDIR)/man8/ iw.8.gz
+ $(Q)$(INSTALL) -m 644 iw.8.gz $(DESTDIR)$(MANDIR)/man8/
clean:
- $(Q)rm -f iw *.o *~ *.gz version.h *-stamp
+ $(Q)rm -f iw *.o *~ *.gz version.c *-stamp nl80211-commands.inc