#########################################################################
#
#  $Id: Makefile 1.8 2021/11/19 14:34:50 martin.burnicki REL_M $
#
#  Description:
#    Makefile for ntptest.
#
# -----------------------------------------------------------------------
#  $Log: Makefile $
#  Revision 1.8  2021/11/19 14:34:50  martin.burnicki
#  If built from a git repo, use the version from git preferably.
#  Some cleanup.
#  Revision 1.7  2020/04/01 16:31:11  martin
#  Add defines to support openSSL CMAC.
#  Revision 1.6  2018/07/31 16:03:44  martin
#  Conditionally support NTP auth.
#  Revision 1.5  2018/07/31 12:13:11  martin
#  Support silent build.
#  Revision 1.4  2018/03/09 09:58:03  martin
#  Added new module mbgntp.o.
#  Revision 1.2  2016/08/05 12:40:28  martin
#  Account for modified directory structure.
#  Makefile has been moved to subdirectory unix/.
#  Added some library modules.
#  Revision 1.1  2014/04/01 13:02:21  martin
#  Initial revision.
#
#########################################################################

TARGET = ntptest

USE_MBG_NTP_AUTH ?= 1


# Set V to 1 to build verbosely.
V ?= 0

# The lines below make the build output non-verbose by default.
# Call make with parameter "V=1" to get verbose output.
ifneq ("$(V)","0")
  Q :=
  QM :=
  vecho = @true
else
  Q := @
  QM := -s
  vecho = @echo
endif

NTPTEST_VERSION = $(shell git describe --tags 2>/dev/null)

MBGLIB = ../mbglib
MBGLIB_DIRS = common

OBJS = $(TARGET).o
OBJS += mbgntp.o
OBJS += mbg_ntp_test_util.o
OBJS += timeutil.o
OBJS += str_util.o
OBJS += mbgerror.o

ifdef DEBUG
  CPPFLAGS += -g2
  CPPFLAGS += -DDEBUG=$(DEBUG)
else
  CPPFLAGS += -O2
endif

CPPFLAGS += -Wall
CPPFLAGS += $(foreach dir,$(MBGLIB_DIRS),-I$(MBGLIB)/$(dir))

LDFLAGS += -lrt

# Conditionally support NTP authentication.
ifneq ("$(USE_MBG_NTP_AUTH)","0")
  CPPFLAGS += -D_USE_MBG_NTP_AUTH=$(USE_MBG_NTP_AUTH)
  CPPFLAGS += -DHAVE_OPENSSL_CMAC_H
  CPPFLAGS += -DENABLE_CMAC

  OBJS += mbg_ntp_auth.o

  LDFLAGS += -lcrypto
  LDFLAGS += -lm       # Requires the math library.
endif

ifneq ($(NTPTEST_VERSION),)
  CPPFLAGS += -DNTPTEST_VERSION=$(NTPTEST_VERSION)
endif

VPATH += ..
VPATH += $(foreach dir,$(MBGLIB_DIRS),$(MBGLIB)/$(dir))


%.o: %.c
	$(vecho) "    $(CC)       $@"
	$(Q)$(CC) $(CPPFLAGS) $(CFLAGS) -c -o $@ $<


.PHONY: all
all: $(TARGET)

$(TARGET): $(OBJS)
	$(vecho) "    Linking $@"
	$(Q)$(CC) -o $@ $(LDFLAGS) $^ $(LDLIBS)


.PHONY: clean
clean:
	rm -f *.o *~ core
	rm -f $(TARGET)