+
+if test "$MINGW32" = "yes"; then
+ target_type=mingw
+else
+ if test "$CYGWIN" = "yes"; then
+ target_type=cygwin
+ else
+ target_type=unix
+ fi
+fi
+
+if test $dodk = auto; then
+ dodk=no
+ if test $target_type = unix; then
+ case "$host_os" in
+ linux* | gnu*)
+ dodk=yes
+ ;;
+ esac
+ fi
+fi
+
+dnl Decide what to do based on target_type
+dnl Note: PTHREAD_LIB is always set, even if pthread is disabled.
+dnl This is because we don't know yet whether pthread is enabled.
+
+AC_ARG_ENABLE(mingw32,
+[ --enable-mingw32 Use mingw32 for a Windows GUI],
+[if test $enableval = yes; then
+ target_type=mingw
+fi])
+
+if test $target_type = mingw; then
+ WIN_ONLY=
+ SPECIAL_CFLAGS="-mwindows -mno-cygwin"
+ PTHREAD_LIB=-lpthreadGC
+ echo "Using mingw32 (Win32 GUI)"
+else
+ WIN_ONLY=#
+ if test $target_type = cygwin; then
+ SPECIAL_CFLAGS="-mno-win32"
+ PTHREAD_LIB=
+ echo "Using Cygnus (Win32 command line)"
+ else
+ SPECIAL_CFLAGS=
+ PTHREAD_LIB=-lpthread
+ fi
+fi
+AC_SUBST(WIN_ONLY)
+
+dnl Checking which text html browser we have avaliable
+if test $dodk != no; then
+ AC_CHECK_PROGS(WDUMP,w3m lynx links,false)
+ if test "$WDUMP" = false; then
+ AC_MSG_ERROR(You need some kind of text browser to continue \(w3m, lynx and links are supported\))
+ fi
+ if test $DB2HTML = false; then
+ dnl We need to clean the variable, otherwise AC_CHECK_PROGS
+ dnl will fail
+ DB2HTML=""
+ AC_CHECK_PROGS(DB2HTML,db2html docbook2html,false)
+ fi
+fi
+AC_SUBST(WDUMP)
+AC_SUBST(DB2HTML)
+
+dnl If we use rpm, we need to check where %_topdir is
+AC_CHECK_PROGS(RPMBIN,rpm,false)
+if test $RPMBIN != false; then
+ RPM_BASE=`rpm --eval "%{_topdir}"`
+ if test "$RPM_BASE" = ""; then
+ RPM_BASE=/usr/src/redhat
+ fi
+fi
+AC_SUBST(RPM_BASE)
+
+dnl Check for jade, so we can build the documentation
+AC_CHECK_PROGS(JADEBIN,jade openjade,false)
+AC_SUBST(JADEBIN)
+
+dnl Check for man2html for docs.
+AC_CHECK_PROGS(MAN2HTML,man2html,false)
+AC_SUBST(MAN2HTML)
+
+dnl Checking for the docbook.dsl stylesheet file
+dnl It is still not portable (directory slash)
+JADECAT=""
+if test $dodk = yes; then
+ if test $DKPREFIX = none; then
+ for i in /usr/share/sgml/docbook/dsssl-stylesheets /usr/share/sgml/docbkdsl /usr/share/sgml/docbook-dsssl; do
+ echo -n "checking for $i/html/docbook.dsl..."
+ if test -f $i/html/docbook.dsl; then
+ echo "yes"
+ DKPREFIX=$i
+ break
+ else
+ echo "no"
+ fi
+ done
+# where are the catalogs?
+ for i in /usr/share/sgml/CATALOG.docbk30 /usr/share/sgml/CATALOG.docbk31; do
+ echo -n "checking for $i..."
+ if test -f $i; then
+ echo "yes"
+ JADECAT="$JADECAT -c $i"
+ else
+ echo "no"
+ fi
+ done
+ fi
+fi
+AC_SUBST(JADECAT)
+AC_SUBST(DKPREFIX)
+
+dnl Save old CFLAGS so we can restore them later, then add SPECIAL_CFLAGS
+old_CFLAGS_nospecial=$CFLAGS
+CFLAGS="$CFLAGS $SPECIAL_CFLAGS"
+
+# Hack to force AutoConf to use the CFLAGS we just set
+dnl Warning: This may break with a future version of Autoconf
+dnl Tested with autoconf 2.13
+ac_cpp='$CPP $CPPFLAGS $SPECIAL_CFLAGS'
+ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
+ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
+
+
+dnl =================================================================
+dnl Thread support
+dnl =================================================================
+
+AC_CHECK_HEADER(pthread.h, [have_pthread=yes], [have_pthread=no])
+
+AC_ARG_ENABLE(pthread,
+[ --disable-pthread Don't use POSIX threads (pthreads)],
+[if test $enableval = no; then
+ # Disable pthreads
+ have_pthread=no
+fi])
+
+if test $have_pthread = yes; then
+ PTHREAD_ONLY=
+ AC_DEFINE(FEATURE_PTHREAD)
+ echo Using POSIX threads
+ if test "$GCC" = "yes"; then
+ # Set a GCC specific switch:
+ if test "$target_type" = "unix"; then
+ # This compiler switch makes Linux thread-safe
+ # Don't know about other OS's? Is this switch
+ # supported?
+ PTHREAD_LIB=
+ SPECIAL_CFLAGS="-pthread"
+ fi
+ fi
+else
+ PTHREAD_ONLY=#
+ echo Using native threads
+fi
+
+AC_SUBST(PTHREAD_ONLY)
+
+dnl =================================================================
+dnl Support for thread-safe versions of gethostbyaddr, gethostbyname,
+dnl gmtime and localtime
+dnl =================================================================
+
+dnl Next line needed to find the gethost*_r functions on Solaris
+AC_CHECK_LIB(nsl, gethostbyname)
+
+AC_CHECK_FUNC(gethostbyaddr_r, [
+ AC_MSG_CHECKING([signature of gethostbyaddr_r])
+ AC_TRY_COMPILE([
+# include <netdb.h>
+ ], [
+ struct hostent *h, *hp;
+ char *a, *b;
+ int l, bl, t, e;
+ (void) gethostbyaddr_r(a, l, t, h, b, bl, &hp, &e)
+ ], [
+ AC_DEFINE(HAVE_GETHOSTBYADDR_R_8_ARGS)
+ AC_MSG_RESULT([8 args])
+ ], [
+ AC_TRY_COMPILE([
+# include <netdb.h>
+ ], [
+ struct hostent *h;
+ char *a, *b;
+ int l, bl, t, e;
+ (void) gethostbyaddr_r(a, l, t, h, b, bl, &e)
+ ], [
+ AC_DEFINE(HAVE_GETHOSTBYADDR_R_7_ARGS)
+ AC_MSG_RESULT([7 args])
+ ], [
+ AC_TRY_COMPILE([
+# include <netdb.h>
+ ], [
+ struct hostent_data *d;
+ struct hostent *h;
+ char a,
+ int l, t;
+ (void) gethostbyaddr_r(a, l, t, h, d)
+ ], [
+ AC_DEFINE(HAVE_GETHOSTBYADDR_R_5_ARGS)
+ AC_MSG_RESULT([5 args])
+ ], [
+ AC_MSG_RESULT(unrecognised)
+ ])
+ ])
+ ])
+], [
+ AC_MSG_RESULT(no)
+])
+
+AC_CHECK_FUNC(gethostbyname_r, [
+ AC_MSG_CHECKING([signature of gethostbyname_r])
+ AC_TRY_COMPILE([
+# include <netdb.h>
+ ], [
+ struct hostent *h, *r;
+ char *n, *b;
+ int bl, e;
+ (void) gethostbyname_r(n, h, b, bl, &r, &e)
+ ], [
+ AC_DEFINE(HAVE_GETHOSTBYNAME_R_6_ARGS)
+ AC_MSG_RESULT([6 args])
+ ], [
+ AC_TRY_COMPILE([
+# include <netdb.h>
+ ], [
+ struct hostent *h;
+ char *n, *b;
+ int bl, e;
+ (void) gethostbyname_r(n, h, b, bl, &e)
+ ], [
+ AC_DEFINE(HAVE_GETHOSTBYNAME_R_5_ARGS)
+ AC_MSG_RESULT([5 args])
+ ], [
+ AC_TRY_COMPILE([
+# include <netdb.h>
+ ], [
+ struct hostent_data *d;
+ struct hostent *h;
+ char *n,
+ (void) gethostbyname_r(n, h, d)
+ ], [
+ AC_DEFINE(HAVE_GETHOSTBYNAME_R_3_ARGS)
+ AC_MSG_RESULT([3 args])
+ ], [
+ AC_MSG_RESULT(unrecognised)
+ ])
+ ])
+ ])
+], [
+ AC_MSG_RESULT(no)
+])
+
+AC_CHECK_FUNC(gmtime_r, [
+ AC_MSG_CHECKING([signature of gmtime_r])
+ AC_TRY_COMPILE([
+# include <time.h>
+ ], [
+ struct time *t;
+ struct tm *tm;
+ (void) gmtime_r(t, tm)
+ ], [
+ AC_MSG_RESULT(ok)
+ AC_DEFINE(HAVE_GMTIME_R)
+ ], [
+ AC_MSG_RESULT(unrecognised)
+ ])
+], [
+ AC_MSG_RESULT(no)
+])
+
+AC_CHECK_FUNC(localtime_r, [
+ AC_MSG_CHECKING([signature of localtime_r])
+ AC_TRY_COMPILE([
+# include <time.h>
+ ], [
+ struct time *t;
+ struct tm *tm;
+ (void) localtime_r(t, tm)
+ ], [
+ AC_MSG_RESULT(ok)
+ AC_DEFINE(HAVE_LOCALTIME_R)
+ ], [
+ AC_MSG_RESULT(unrecognised)
+ ])
+], [
+ AC_MSG_RESULT(no)
+])
+
+dnl =================================================================
+dnl Solaris specific
+dnl FIXME: Not tested on Solaris yet...
+dnl ISFIXED: Have tested it on Solaris, but there are other ways to
+dnl make these checks generic, e.g.:
+dnl AC_CHECK_FUNC(getsockopt, , AC_CHECK_LIB(socket, getsockopt))
+dnl (Moritz Barsnick <moritz@barsnick.net>)
+dnl =================================================================
+
+
+SOCKET_LIB=
+
+case "$host" in
+*-solaris*) SOCKET_LIB="-lsocket -lnsl"
+ AC_DEFINE(__EXTENSIONS__)
+ if test "$GCC" = "yes"; then
+ # Set a GCC specific switch:
+ # This compiler switch makes Solaris thread-safe
+ PTHREAD_LIB=
+ SPECIAL_CFLAGS="-pthreads"
+ else
+ # What do we do without GCC? Guess this:
+ SPECIAL_CFLAGS="-D_REENTRANT"
+ fi
+;;
+esac
+
+AC_SUBST(SOCKET_LIB)
+
+dnl =================================================================
+dnl Solaris problem, and others perhaps (socklen_t is undefined)
+dnl =================================================================
+
+AC_MSG_CHECKING([for socklen_t])
+AC_EGREP_HEADER(socklen_t, sys/socket.h, AC_MSG_RESULT([yes]),
+ AC_MSG_RESULT([no])
+ AC_DEFINE(socklen_t,int,
+ [ Define to 'int' if <sys/socket.h> doesn't have it. ]))
+
+
+dnl =================================================================
+dnl OS/2 specific
+dnl =================================================================
+
+case "$host" in
+*-os2-emx*) SOCKET_LIB=-lsocket
+;;
+esac
+
+AC_SUBST(SOCKET_LIB)
+
+dnl =================================================================
+dnl Mac OSX specific
+dnl =================================================================
+
+case "$host" in
+*-apple-darwin*) SPECIAL_CFLAGS="-Dunix"
+;;
+esac
+
+dnl =================================================================
+dnl AmigaOS specific
+dnl =================================================================
+
+AMIGAOS_ONLY=#
+
+case "$host" in
+*-amigaos) AMIGAOS_ONLY=
+;;
+esac
+
+AC_SUBST(AMIGAOS_ONLY)
+
+dnl =================================================================
+dnl Check for standard compiler stuff
+dnl =================================================================
+