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nerves_wpa_supplicant

0.3.3
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Elixir interface to the wpa_supplicant daemon. The wpa_supplicant provides application support for scanning for access points, managing Wi-Fi connections, and handling all of the security and other parameters associated with Wi-Fi.

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nerves_wpa_supplicant Makefile
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Makefile 

# Variables to override

#

# CC            C compiler

# CROSSCOMPILE	crosscompiler prefix, if any

# CFLAGS	compiler flags for compiling all C files

# LDFLAGS	linker flags for linking all binaries

# SUDO_ASKPASS  path to ssh-askpass when modifying ownership of wpa_ex

# SUDO          path to SUDO. If you don't want the privileged parts to run, set to "true"



# Check that we're on a supported build platform

ifeq ($(CROSSCOMPILE),)

    # Not crosscompiling, so check that we're on Linux.

    ifneq ($(shell uname -s),Linux)

        $(warning nerves_wpa_supplicant only works on Linux, but crosscompilation)

        $(warning is supported by defining $$CROSSCOMPILE.)

        $(warning See Makefile for details. If using Nerves,)

        $(warning this should be done automatically.)

        $(warning .)

        $(warning Skipping C compilation unless targets explicitly passed to make.)

	DEFAULT_TARGETS = priv

    endif

endif

DEFAULT_TARGETS ?= priv priv/wpa_ex



WPA_DEFINES = -DCONFIG_CTRL_IFACE -DCONFIG_CTRL_IFACE_UNIX



LDFLAGS += -lrt

CFLAGS ?= -O2 -Wall -Wextra -Wno-unused-parameter

CC ?= $(CROSSCOMPILE)-gcc



# If not cross-compiling, then run sudo by default

ifeq ($(origin CROSSCOMPILE), undefined)

SUDO_ASKPASS ?= /usr/bin/ssh-askpass

SUDO ?= sudo

else

# If cross-compiling, then permissions need to be set some build system-dependent way

SUDO ?= true

endif



.PHONY: all clean



all: $(DEFAULT_TARGETS)



%.o: %.c

	$(CC) -c $(WPA_DEFINES) $(CFLAGS) -o $@ $<



priv:

	mkdir -p priv



priv/wpa_ex: src/wpa_ex.o src/wpa_ctrl/os_unix.o src/wpa_ctrl/wpa_ctrl.o

	$(CC) $^ $(LDFLAGS) -o $@

	# setuid root wpa_ex so that it can interact with the wpa_supplicant

	SUDO_ASKPASS=$(SUDO_ASKPASS) $(SUDO) -- sh -c 'chown root:root $@; chmod +s $@'



clean:

	rm -f priv/wpa_ex src/*.o src/wpa_ctrl/*.o