mdw@git.distorted.org.uk Git - adns/blob - configure.in

   1 # configure.in - input to autoconf
   2 #
   3 #  This file is part of adns, which is
   4 #    Copyright (C) 1997-2000,2003,2006,2014-2016  Ian Jackson
   5 #    Copyright (C) 2014  Mark Wooding
   6 #    Copyright (C) 1999-2000,2003,2006  Tony Finch
   7 #    Copyright (C) 1991 Massachusetts Institute of Technology
   8 #  (See the file INSTALL for full details.)
   9 #
  10 #  This program is free software; you can redistribute it and/or modify
  11 #  it under the terms of the GNU General Public License as published by
  12 #  the Free Software Foundation; either version 3, or (at your option)
  13 #  any later version.
  14 #
  15 #  This program is distributed in the hope that it will be useful,
  16 #  but WITHOUT ANY WARRANTY; without even the implied warranty of
  17 #  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18 #  GNU General Public License for more details.
  19 #
  20 #  You should have received a copy of the GNU General Public License
  21 #  along with this program; if not, write to the Free Software Foundation.
  22
  23 AC_INIT(src/adns.h)
  24 AC_CONFIG_HEADER(src/config.h)
  25
  26 dnl DPKG_CACHED_TRY_COMPILE(<description>,<cachevar>,<include>,<program>,<ifyes>,<ifno>)
  27 define([DPKG_CACHED_TRY_COMPILE],[
  28  AC_MSG_CHECKING($1)
  29  AC_CACHE_VAL($2,[
  30   AC_TRY_COMPILE([$3],[$4],[$2=yes],[$2=no])
  31  ])
  32  if test "x$$2" = xyes; then
  33   true
  34   $5
  35  else
  36   true
  37   $6
  38  fi
  39 ])
  40
  41 AC_MSG_CHECKING(whether you requested dynamic linking)
  42 AC_SUBST(ENABLE_DYNAMIC)
  43 AC_ARG_ENABLE(dynamic,
  44 [  --disable-dynamic       use static linking
  45   --enable-dynamic[=elf]  create and use ELF dynamic library (default)],
  46 [       case "$enableval" in
  47         elf|yes)
  48                 ENABLE_DYNAMIC=elf
  49                 AC_MSG_RESULT([yes (ELF)])
  50                 ;;
  51         no)     ENABLE_DYNAMIC=no
  52                 AC_MSG_RESULT(no)
  53                 ;;
  54         *)      AC_MSG_ERROR(
  55 ["invalid value $enableval for --enable-dynamic, try yes or elf"])
  56                 ;;
  57         esac
  58 ],[
  59                 ENABLE_DYNAMIC=elf
  60                 AC_MSG_RESULT([yes, by default])
  61 ])
  62
  63 AC_PROG_CC
  64 AC_PROG_CPP
  65 AC_PROG_RANLIB
  66 AC_PROG_INSTALL
  67
  68 AC_CHECK_FUNCS(poll)
  69 ADNS_C_GETFUNC(socket,socket)
  70 ADNS_C_GETFUNC(inet_ntoa,nsl)
  71
  72 PROGS_IF_TSEARCH=adnsresfilter
  73 AC_SUBST(PROGS_HAVE_TSEARCH)
  74 AC_CHECK_FUNC(tsearch,[
  75  PROGS_HAVE_TSEARCH=$PROGS_IF_TSEARCH
  76 ],[
  77  PROGS_HAVE_TSEARCH='';
  78  AC_MSG_WARN([tsearch missing - not building client program(s) $PROGS_IF_TSEARCH])
  79 ])
  80
  81 AC_MSG_CHECKING(for INADDR_LOOPBACK)
  82 AC_CACHE_VAL(adns_cv_decl_inaddrloopback,[
  83  AC_TRY_COMPILE([
  84 #include <sys/socket.h>
  85 #include <netinet/in.h>
  86 #include <arpa/inet.h>
  87  ],[
  88   INADDR_LOOPBACK;
  89  ],
  90  adns_cv_decl_inaddrloopback=yes,
  91  adns_cv_decl_inaddrloopback=no)])
  92 if test "$adns_cv_decl_inaddrloopback" = yes; then
  93  AC_MSG_RESULT(found)
  94 else
  95  AC_MSG_RESULT([not in standard headers, urgh...])
  96  AC_CHECK_HEADER(rpc/types.h,[
  97   AC_DEFINE(HAVEUSE_RPCTYPES_H)
  98  ],[
  99   AC_MSG_ERROR([cannot find INADDR_LOOPBACK or rpc/types.h])
 100  ])
 101 fi
 102
 103 ADNS_C_GETFUNC(inet_aton,resolv,[
 104  LIBS="-lresolv $LIBS";
 105  AC_MSG_WARN([inet_aton is in libresolv, urgh.  Must use -lresolv.])
 106 ])
 107
 108 DPKG_CACHED_TRY_COMPILE(inlines,dpkg_cv_c_inline,,
 109  [} inline int foo (int x) {],
 110  AC_MSG_RESULT(yes)
 111  AC_DEFINE(HAVE_INLINE),
 112  AC_MSG_RESULT(no))
 113
 114 AC_SUBST(WARNS)
 115
 116 if test "${GCC-no}" = yes; then
 117         WARNS="-Wall -Wmissing-prototypes -Wwrite-strings -Wstrict-prototypes -Wcast-qual -Wpointer-arith"
 118         saved_cflags="$CFLAGS"
 119         CFLAGS="$CFLAGS -Wno-pointer-sign"
 120         DPKG_CACHED_TRY_COMPILE(-Wno-pointer-sign,adns_cv_c_wnoptrsign,,
 121          [],
 122          AC_MSG_RESULT(yes)
 123          WARNS="$WARNS -Wno-pointer-sign",
 124          AC_MSG_RESULT(no))
 125         CFLAGS="$saved_cflags"
 126 else
 127         WARNS=
 128 fi
 129
 130 ADNS_C_GCCATTRIB
 131
 132 AC_SUBST(SHLIBCC)
 133 AC_SUBST(MKSHLIB_1)
 134 AC_SUBST(MKSHLIB_2)
 135 AC_SUBST(MKSHLIB_3)
 136
 137 AC_SUBST(SHLIBFORLINK)
 138 AC_SUBST(SHLIBFILE)
 139 AC_SUBST(SHLIBSONAME)
 140
 141 SHLIBFORLINK='libadns.so'
 142 SHLIBSONAME='$(SHLIBFORLINK).$(MAJOR)'
 143 SHLIBFILE='$(SHLIBSONAME).$(MINOR)'
 144
 145 SHLIBCC='$(CC) $(CFLAGS) -fpic'
 146 MKSHLIB_1='$(CC) $(LDFLAGS) -shared -Wl,-soname=$(SHLIBSONAME) -o'
 147 MKSHLIB_2=''
 148 MKSHLIB_3='-lc'
 149
 150 AC_OUTPUT(
 151         common.make settings.make Makefile
 152         src/Makefile client/Makefile dynamic/Makefile regress/Makefile
 153 )