X-Git-Url: https://arthur.barton.de/cgi-bin/gitweb.cgi?p=ngircd-alex.git;a=blobdiff_plain;f=configure.in;h=51841e7a862ac236c42867833b6ca7d736d724a7;hp=34cb1290533827175de66e5e473b37abe0db50e0;hb=f86ce17f1c9f066531d4da9ac344c13ee88f12d3;hpb=a29308802730068270e5032831ea56e2a4fac74b

diff --git a/configure.in b/configure.in
index 34cb1290..51841e7a 100644
--- a/configure.in
+++ b/configure.in
@@ -8,7 +8,7 @@
 # (at your option) any later version.
 # Please read the file COPYING, README and AUTHORS for more information.
 #
-# $Id: configure.in,v 1.117 2005/12/06 22:37:50 alex Exp $
+# $Id: configure.in,v 1.125 2006/12/26 16:00:45 alex Exp $
 #
 
 # -- Initialisation --
@@ -53,32 +53,32 @@ AC_PROG_RANLIB
 
 AM_C_PROTOTYPES
 AC_C_CONST
+AC_C_INLINE
 
 # -- Hard coded system and compiler dependencies/features/options ... --
 
-if test "$GCC" = "yes"; then
-	# We are using the GNU C compiler. Good!
-	CFLAGS="$CFLAGS -pipe -W -Wall -Wpointer-arith -Wstrict-prototypes"
-fi
-
-
 AC_DEFUN([GCC_STACK_PROTECT_CC],[
   ssp_cc=yes
-  if test "X$CC" != "X"; then
-    AC_MSG_CHECKING([whether ${CC} accepts -fstack-protector])
-    ssp_old_cflags="$CFLAGS"
-    CFLAGS="$CFLAGS -fstack-protector"
-    AC_TRY_COMPILE(,,, ssp_cc=no)
-    echo $ssp_cc
-    if test "X$ssp_cc" = "Xno"; then
-      CFLAGS="$ssp_old_cflags"
-    else
+  # we use -fstack-protector-all for the test to enfoce the use of the guard variable 
+  AC_MSG_CHECKING([whether ${CC} accepts -fstack-protector])
+  ssp_old_cflags="$CFLAGS"
+  CFLAGS="$CFLAGS -fstack-protector-all"
+  AC_TRY_LINK(,,, ssp_cc=no)
+  echo $ssp_cc
+  CFLAGS="$ssp_old_cflags"
+  if test "X$ssp_cc" = "Xyes"; then
+      CFLAGS="$CFLAGS -fstack-protector"
       AC_DEFINE([ENABLE_SSP_CC], 1, [Define if SSP C support is enabled.])
-    fi
   fi
 ])
 
-GCC_STACK_PROTECT_CC
+
+if test "$GCC" = "yes"; then
+	# We are using the GNU C compiler. Good!
+	CFLAGS="$CFLAGS -pipe -W -Wall -Wpointer-arith -Wstrict-prototypes"
+
+	GCC_STACK_PROTECT_CC
+fi
 
 case "$target_os" in
 	hpux*)
@@ -138,17 +138,15 @@ AC_FUNC_STRFTIME
 
 AC_CHECK_FUNCS([ \
 	bind gethostbyaddr gethostbyname gethostname inet_ntoa malloc memmove \
-	memset realloc setsid setsockopt socket strcasecmp strchr strerror \
+	memset realloc setsid setsockopt socket strcasecmp strchr strcspn strerror \
 	strstr waitpid],,AC_MSG_ERROR([required function missing!]))
 
 AC_CHECK_FUNCS(inet_aton isdigit sigaction snprintf vsnprintf strdup strlcpy strlcat)
 
-AC_CHECK_FUNCS(select,[AC_CHECK_HEADERS(sys/select.h)],
-	AC_MSG_ERROR([required function select() is missing!])
-)
-
 # -- Configuration options --
 
+# use syslog?
+
 x_syslog_on=no
 AC_ARG_WITH(syslog,
 	[  --without-syslog        disable syslog (autodetected by default)],
@@ -174,6 +172,8 @@ if test "$x_syslog_on" = "yes"; then
 	AC_CHECK_HEADERS(syslog.h,,AC_MSG_ERROR([required C header missing!]))
 fi
 
+# use zlib compression?
+
 x_zlib_on=no
 AC_ARG_WITH(zlib,
 	[  --without-zlib          disable zlib compression (autodetected by default)],
@@ -198,44 +198,120 @@ if test "$x_zlib_on" = "yes"; then
 	AC_CHECK_HEADERS(zlib.h,,AC_MSG_ERROR([required C header missing!]))
 fi
 
+# detect which IO API to use:
+
+x_io_backend=none
+
+AC_ARG_WITH(select,
+	[  --without-select        disable select IO support (autodetected by default)],
+	[	if test "$withval" != "no"; then
+			if test "$withval" != "yes"; then
+				CFLAGS="-I$withval/include $CFLAGS"
+				CPPFLAGS="-I$withval/include $CPPFLAGS"
+				LDFLAGS="-L$withval/lib $LDFLAGS"
+			fi
+			AC_CHECK_FUNCS(select, x_io_select=yes,
+				AC_MSG_ERROR([Can't enable select IO support!])
+			)
+		fi
+	],
+	[
+		AC_CHECK_FUNCS(select, x_io_select=yes)
+	]
+)
+
+AC_ARG_WITH(poll,
+	[  --without-poll          disable poll support (autodetected by default)],
+	[	if test "$withval" != "no"; then
+			if test "$withval" != "yes"; then
+				CFLAGS="-I$withval/include $CFLAGS"
+				CPPFLAGS="-I$withval/include $CPPFLAGS"
+				LDFLAGS="-L$withval/lib $LDFLAGS"
+			fi
+			AC_CHECK_FUNCS(poll, x_io_backend=poll\(\),
+				AC_MSG_ERROR([Can't enable poll IO support!])
+			)
+		fi
+	],
+	[
+		AC_CHECK_FUNCS(poll, x_io_backend=poll\(\))
+	]
+)
+
+AC_ARG_WITH(devpoll,
+	[  --without-devpoll       disable /dev/poll IO support (autodetected by default)],
+	[	if test "$withval" != "no"; then
+			if test "$withval" != "yes"; then
+				CFLAGS="-I$withval/include $CFLAGS"
+				CPPFLAGS="-I$withval/include $CPPFLAGS"
+				LDFLAGS="-L$withval/lib $LDFLAGS"
+			fi
+
+				AC_CHECK_HEADERS(sys/devpoll.h,,AC_MSG_ERROR([required C header missing!]))
+		fi
+	],
+	[
+		AC_CHECK_HEADERS(sys/devpoll.h, x_io_backend=/dev/poll)
+	]
+)
 
-x_io_backend=select
 AC_ARG_WITH(epoll,
-	[  --without-epoll         disable epoll support (autodetected by default)],
+	[  --without-epoll         disable epoll IO support (autodetected by default)],
 	[	if test "$withval" != "no"; then
 			if test "$withval" != "yes"; then
 				CFLAGS="-I$withval/include $CFLAGS"
 				CPPFLAGS="-I$withval/include $CPPFLAGS"
 				LDFLAGS="-L$withval/lib $LDFLAGS"
 			fi
-			AC_CHECK_FUNCS(epoll_create, x_io_backend=epoll,
-				AC_MSG_ERROR([Can't enable epoll support!])
+			AC_CHECK_FUNCS(epoll_create, x_io_epoll=yes,
+				AC_MSG_ERROR([Can't enable epoll IO support!])
 			)
 		fi
 	],
 	[
-		AC_CHECK_FUNCS(epoll_create, x_io_backend=epoll)
+		AC_CHECK_FUNCS(epoll_create, x_io_epoll=yes)
 	]
 )
 
 AC_ARG_WITH(kqueue,
-	[  --without-kqueue        disable kqueue support (autodetected by default)],
+	[  --without-kqueue        disable kqueue IO support (autodetected by default)],
 	[	if test "$withval" != "no"; then
 			if test "$withval" != "yes"; then
 				CFLAGS="-I$withval/include $CFLAGS"
 				CPPFLAGS="-I$withval/include $CPPFLAGS"
 				LDFLAGS="-L$withval/lib $LDFLAGS"
 			fi
-			AC_CHECK_FUNCS(kqueue, x_io_backend=kqueue,
-				AC_MSG_ERROR([Can't enable kqueue support!])
+			AC_CHECK_FUNCS(kqueue, x_io_backend=kqueue\(\),
+				AC_MSG_ERROR([Can't enable kqueue IO support!])
 			)
 		fi
 	],
 	[
-		AC_CHECK_FUNCS(kqueue, x_io_backend=kqueue)
+		AC_CHECK_FUNCS(kqueue, x_io_backend=kqueue\(\))
 	]
 )
 
+if test "$x_io_epoll" = "yes" -a "$x_io_select" = "yes"; then
+	# when epoll() and select() are available, we'll use both!
+	x_io_backend="epoll(), select()"
+else
+	if test "$x_io_epoll" = "yes"; then
+		# we prefere epoll() if it is available
+		x_io_backend="epoll()"
+	else
+		if test "$x_io_select" = "yes" -a "$x_io_backend" = "none"; then
+			# we'll use select, when available and no "better"
+			# interface has been detected ...
+			x_io_backend="select()"
+		fi
+	fi
+fi
+
+if test "$x_io_backend" = "none"; then
+	AC_MSG_ERROR([No useabe IO API activated/found!?])
+fi
+
+# use TCP wrappers?
 
 x_tcpwrap_on=no
 AC_ARG_WITH(tcp-wrappers,
@@ -266,6 +342,8 @@ int deny_severity = 0;
 	]
 )
 
+# include support for "zeroconf"?
+
 x_zeroconf_on=no
 AC_ARG_WITH(zeroconf,
 	[  --with-zeroconf         enable support for "Zeroconf"],
@@ -293,7 +371,8 @@ if test "$x_zeroconf_on" = "osx"; then
 fi
 if test "$x_zeroconf_on" = "howl"; then
 	for dir in /usr/local/include /usr/local/include/howl* \
-	 /usr/include /usr/include/howl*; do
+	 /usr/include /usr/include/howl* \
+	 /usr/local/include/avahi* /usr/include/avahi*; do
 	 	test -d "$dir" || continue
 		AC_MSG_CHECKING([for Howl headers in $dir])
 		if test -f "$dir/rendezvous/rendezvous.h"; then
@@ -313,6 +392,8 @@ if test "$x_zeroconf_on" = "howl"; then
 	AC_DEFINE(ZEROCONF, 1)
 fi
 
+# do IDENT requests using libident?
+
 x_identauth_on=no
 AC_ARG_WITH(ident,
 	[  --with-ident            enable "IDENT" ("AUTH") protocol support],
@@ -334,6 +415,8 @@ if test "$x_identauth_on" = "yes"; then
 	AC_CHECK_HEADERS(ident.h,,AC_MSG_ERROR([required C header missing!]))
 fi
 
+# compile in IRC+ protocol support?
+
 x_ircplus_on=yes
 AC_ARG_ENABLE(ircplus,
 	[  --disable-ircplus       disable IRC+ protocol],
@@ -343,6 +426,8 @@ if test "$x_ircplus_on" = "yes"; then
 	AC_DEFINE(IRCPLUS, 1)
 fi
 
+# compile in IRC "sniffer"?
+
 x_sniffer_on=no; x_debug_on=no
 AC_ARG_ENABLE(sniffer,
 	[  --enable-sniffer        enable IRC traffic sniffer (enables debug mode)],
@@ -352,6 +437,8 @@ AC_ARG_ENABLE(sniffer,
 	fi
 )
 
+# enable additional debugging code?
+
 AC_ARG_ENABLE(debug,
 	[  --enable-debug          show additional debug output],
 	if test "$enableval" = "yes"; then x_debug_on=yes; fi
@@ -361,6 +448,8 @@ if test "$x_debug_on" = "yes"; then
 	test "$GCC" = "yes" && CFLAGS="-pedantic $CFLAGS"
 fi
 
+# enable "strict RFC rules"?
+
 x_strict_rfc_on=no
 AC_ARG_ENABLE(strict-rfc,
 	[  --enable-strict-rfc     strict RFC conformance -- may break clients!],
@@ -481,7 +570,7 @@ test "$x_identauth_on" = "yes" \
 	&& echo $ECHO_N "yes   $ECHO_C" \
 	|| echo $ECHO_N "no    $ECHO_C"
 echo $ECHO_N "        I/O backend: $ECHO_C"
-	echo "\"$x_io_backend()\""
+	echo "\"$x_io_backend\""
 
 echo