Clients/Makefile

   1 # -*- tab-width: 4 -*-
   2 #
   3 # Copyright (c) 2002-2004, 2015 Apple Computer, Inc. All rights reserved.
   4 #
   5 # Licensed under the Apache License, Version 2.0 (the "License");
   6 # you may not use this file except in compliance with the License.
   7 # You may obtain a copy of the License at
   8 #
   9 #     http://www.apache.org/licenses/LICENSE-2.0
  10 #
  11 # Unless required by applicable law or agreed to in writing, software
  12 # distributed under the License is distributed on an "AS IS" BASIS,
  13 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14 # See the License for the specific language governing permissions and
  15 # limitations under the License.
  16 #
  17 # Notes:
  18 # $@ means "The file name of the target of the rule"
  19 # $< means "The name of the first prerequisite"
  20 # $+ means "The names of all the prerequisites, with spaces between them, exactly as given"
  21 # For more magic automatic variables, see
  22 # <http://www.gnu.org/software/make/manual/html_chapter/make_10.html#SEC111>
  23 #
  24 # This makefile uses $(CC) for compilation and linking, which is
  25 # an automatic implicit gcc variable that defaults to "cc"
  26 # <https://www.gnu.org/software/make/manual/html_node/Implicit-Variables.html>
  27
  28 #############################################################################
  29
  30 # On OS X the dns_sd library functions are included in libSystem, which is implicitly linked with every executable
  31 # If /usr/lib/libSystem.dylib exists, then we're on OS X, so we don't need also to link the "dns_sd" shared library
  32 ifeq "$(DEBUG)" "1"
  33 DEBUGFLAGS = -g
  34 BUILDDIR = build/debug
  35 else
  36 DEBUGFLAGS = -Os
  37 BUILDDIR = build/prod
  38 endif
  39
  40 ifneq "$(wildcard /usr/lib/libSystem.dylib)" ""
  41 TARGETS = build/dns-sd build/dns-sd64
  42 LIBS =
  43 else
  44 TARGETS = build/dns-sd
  45 LIBS = -L../mDNSPosix/$(BUILDDIR)/ -ldns_sd
  46 endif
  47
  48 all: $(TARGETS)
  49
  50 clean:
  51         rm -rf build
  52
  53 build:
  54         mkdir build
  55
  56 build/dns-sd: build dns-sd.c ClientCommon.c
  57         $(CC) $(SUPMAKE_CFLAGS) $(filter %.c %.o, $+) $(LIBS) -I../mDNSShared -Wall -o $@
  58
  59 build/dns-sd64: build dns-sd.c ClientCommon.c
  60         $(CC) $(SUPMAKE_CFLAGS) $(filter %.c %.o, $+) $(LIBS) -I../mDNSShared -Wall -o $@ -m64
  61
  62 # Note, we can make a 'fat' version of dns-sd using 'lipo', as shown below, but we
  63 # don't, because we don't want or need a 'fat' version of dns-sd, because it will
  64 # never need to access more than 4GB of data. We build the 64-bit version purely so
  65 # we have a test tool for making sure that the APIs work properly from 64-bit clients.
  66 # lipo -create dns-sd dns-sd64 -output dns-sd-fat