X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=adns.git;a=blobdiff_plain;f=configure.in;h=2855fe6a65d186c52ae8310075ccc6bbd1ee561c;hp=4af860628fc602e7b01f7be6004535b7144f194a;hb=a63608e6192b082adb2392c30f1a113e4f8b3ba7;hpb=04e7fb4d97434b04dfc25c79fd0ceec8d76c38ac

diff --git a/configure.in b/configure.in
index 4af8606..2855fe6 100644
--- a/configure.in
+++ b/configure.in
@@ -1,10 +1,15 @@
 # configure.in - input to autoconf
 #  
-#  This file is part of adns, which is Copyright (C) 1997-1999 Ian Jackson
-#
+#  This file is part of adns, which is
+#    Copyright (C) 1997-2000,2003,2006,2014  Ian Jackson
+#    Copyright (C) 2014  Mark Wooding
+#    Copyright (C) 1999-2000,2003,2006  Tony Finch
+#    Copyright (C) 1991 Massachusetts Institute of Technology
+#  (See the file INSTALL for full details.)
+#  
 #  This program is free software; you can redistribute it and/or modify
 #  it under the terms of the GNU General Public License as published by
-#  the Free Software Foundation; either version 2, or (at your option)
+#  the Free Software Foundation; either version 3, or (at your option)
 #  any later version.
 #  
 #  This program is distributed in the hope that it will be useful,
@@ -13,19 +18,66 @@
 #  GNU General Public License for more details.
 #  
 #  You should have received a copy of the GNU General Public License
-#  along with this program; if not, write to the Free Software Foundation,
-#  Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. 
+#  along with this program; if not, write to the Free Software Foundation.
 
 AC_INIT(src/adns.h)
 AC_CONFIG_HEADER(src/config.h)
+
+dnl DPKG_CACHED_TRY_COMPILE(<description>,<cachevar>,<include>,<program>,<ifyes>,<ifno>)
+define([DPKG_CACHED_TRY_COMPILE],[
+ AC_MSG_CHECKING($1)
+ AC_CACHE_VAL($2,[
+  AC_TRY_COMPILE([$3],[$4],[$2=yes],[$2=no])
+ ])
+ if test "x$$2" = xyes; then
+  true
+  $5
+ else
+  true
+  $6
+ fi
+])
+
+AC_MSG_CHECKING(whether you requested dynamic linking)
+AC_SUBST(ENABLE_DYNAMIC)
+AC_ARG_ENABLE(dynamic,
+[  --disable-dynamic       use static linking
+  --enable-dynamic[=elf]  create and use ELF dynamic library (default)],
+[	case "$enableval" in
+	elf|yes)
+		ENABLE_DYNAMIC=elf
+		AC_MSG_RESULT([yes (ELF)])
+		;;
+	no)	ENABLE_DYNAMIC=no
+		AC_MSG_RESULT(no)
+		;;
+	*)	AC_MSG_ERROR(
+["invalid value $enableval for --enable-dynamic, try yes or elf"])
+		;;
+	esac
+],[
+		ENABLE_DYNAMIC=elf
+		AC_MSG_RESULT([yes, by default])
+])
+
 AC_PROG_CC
 AC_PROG_CPP
 AC_PROG_RANLIB
+AC_PROG_INSTALL
 
 AC_CHECK_FUNCS(poll)
 ADNS_C_GETFUNC(socket,socket)
 ADNS_C_GETFUNC(inet_ntoa,nsl)
 
+PROGS_IF_TSEARCH=adnsresfilter
+AC_SUBST(PROGS_HAVE_TSEARCH)
+AC_CHECK_FUNC(tsearch,[
+ PROGS_HAVE_TSEARCH=$PROGS_IF_TSEARCH
+],[
+ PROGS_HAVE_TSEARCH='';
+ AC_MSG_WARN([tsearch missing - not building client program(s) $PROGS_IF_TSEARCH])
+])
+
 AC_MSG_CHECKING(for INADDR_LOOPBACK)
 AC_CACHE_VAL(adns_cv_decl_inaddrloopback,[
  AC_TRY_COMPILE([
@@ -53,29 +105,47 @@ ADNS_C_GETFUNC(inet_aton,resolv,[
  AC_MSG_WARN([inet_aton is in libresolv, urgh.  Must use -lresolv.])
 ])
 
-ADNS_C_GCCATTRIB
+DPKG_CACHED_TRY_COMPILE(inlines,dpkg_cv_c_inline,,
+ [} inline int foo (int x) {],
+ AC_MSG_RESULT(yes)
+ AC_DEFINE(HAVE_INLINE),
+ AC_MSG_RESULT(no))
 
 AC_SUBST(WARNS)
 
 if test "${GCC-no}" = yes; then
 	WARNS="-Wall -Wmissing-prototypes -Wwrite-strings -Wstrict-prototypes -Wcast-qual -Wpointer-arith"
+	saved_cflags="$CFLAGS"
+	CFLAGS="$CFLAGS -Wno-pointer-sign"
+	DPKG_CACHED_TRY_COMPILE(-Wno-pointer-sign,adns_cv_c_wnoptrsign,,
+	 [],
+	 AC_MSG_RESULT(yes)
+	 WARNS="$WARNS -Wno-pointer-sign",
+	 AC_MSG_RESULT(no))
+	CFLAGS="$saved_cflags"
 else
 	WARNS=
 fi
 
+ADNS_C_GCCATTRIB
+
 AC_SUBST(SHLIBCC)
 AC_SUBST(MKSHLIB_1)
 AC_SUBST(MKSHLIB_2)
 AC_SUBST(MKSHLIB_3)
+
+AC_SUBST(SHLIBFORLINK)
 AC_SUBST(SHLIBFILE)
 AC_SUBST(SHLIBSONAME)
 
+SHLIBFORLINK='libadns.so'
+SHLIBSONAME='$(SHLIBFORLINK).$(MAJOR)'
+SHLIBFILE='$(SHLIBSONAME).$(MINOR)'
+
 SHLIBCC='$(CC) $(CFLAGS) -fpic'
-MKSHLIB_1='$(CC) $(LDFLAGS) -shared -Wxl,soname=$(SONAME) -o'
+MKSHLIB_1='$(CC) $(LDFLAGS) -shared -Wl,-soname=$(SHLIBSONAME) -o'
 MKSHLIB_2=''
 MKSHLIB_3='-lc'
-SHLIBFILE='libadns.so.$(MAJOR).$(MINOR)'
-SHLIBSONAME='libadns.so.$(MAJOR)'
 
 AC_OUTPUT(
 	settings.make Makefile