configure.in

jrtplib3.3.0 最新下载的jrtplib. 我现在正在用jrtplib2.7版本

	[AC_MSG_RESULT(no)
		AC_MSG_CHECKING(if compiler can compile STL programs with option -LANG:std)
		CXXFLAGS="$CXXFLAGS -LANG:std"
		AC_TRY_COMPILE([
			#include <iostream>],[
			std::cout << "Bla" << std::endl; ],
			AC_MSG_RESULT(yes),[
			AC_MSG_RESULT(no)
			AC_MSG_ERROR(Unable to compile a trivial STL program)]
			)
	])

dnl ---------------------------------------------------------------------------
dnl Check if compiler can handle inline function in template argument
dnl ---------------------------------------------------------------------------

AC_MSG_CHECKING(if compiler supports an inline function as a template argument)
AC_TRY_COMPILE([
	#include "src/rtphashtable.h"
	inline int GetIndex(const int &elem) { return elem%10; }],[
	RTPHashTable<int,GetIndex,10> table; ],
	[AC_MSG_RESULT(yes)
		RTP_SUPPORT_INLINETEMPLATEPARAM="#define RTP_SUPPORT_INLINETEMPLATEPARAM"],
	AC_MSG_RESULT(no)
	)
	
dnl ---------------------------------------------------------------------------
dnl Check for u_int32_t etc
dnl ---------------------------------------------------------------------------

AC_MSG_CHECKING(if types like u_int32_t exist)
AC_TRY_COMPILE([
	#include <sys/types.h>],[
	u_int32_t x;
	x = 0;],
	[AC_MSG_RESULT(yes)
	echo "#include <sys/types.h>" >src/rtptypes_unix.h
	],[
	AC_MSG_RESULT(no)
	echo "Generating src/rtptypes.h ..."
	if ! ( $CXX $CFLAGS -o tools/gettypes tools/gettypes.cpp >/dev/null 2>/dev/null ) ; then
		AC_MSG_ERROR(Unable to create src/rtptypes_unix.h)
	fi
	if ! ( tools/gettypes >src/rtptypes_unix.h ) ; then
		AC_MSG_ERROR(Unable to create src/rtptypes_unix.h)
	fi
	])

dnl ---------------------------------------------------------------------------
dnl Check random functions
dnl ---------------------------------------------------------------------------

AC_MSG_CHECKING(for drand48_r and srand48_r)
AC_COMPILE_IFELSE([
	#include <stdlib.h>
	int main(void)
	{
		struct drand48_data drandbuffer;
		double x;
		srand48_r(12345,&drandbuffer);
		drand48_r(&drandbuffer,&x);
		return 0;
	}
	],
	[AC_MSG_RESULT(yes)
		RTP_SUPPORT_GNUDRAND="#define RTP_SUPPORT_GNUDRAND"],
	[
	AC_MSG_RESULT(no)
	AC_MSG_CHECKING(for rand_r)
	AC_COMPILE_IFELSE([
		#include <stdlib.h>
		int main(void)
		{
			unsigned int x;
			x = 12345;
			rand_r(&x);
			return 0;
		}
		],
		[ AC_MSG_RESULT(yes)
			RTP_SUPPORT_RANDR="#define RTP_SUPPORT_RANDR"],
		[ AC_MSG_RESULT(no)])
	])

dnl ---------------------------------------------------------------------------
dnl Check getlogin_r functions
dnl ---------------------------------------------------------------------------

AC_MSG_CHECKING(for getlogin_r)
AC_COMPILE_IFELSE([
	#include <unistd.h>
	int main(void)
	{
		char buf[[256]];
		getlogin_r(buf,256);
		return 0;
	}
	],
	[AC_MSG_RESULT(yes)
		RTP_SUPPORT_GETLOGINR="#define RTP_SUPPORT_GETLOGINR"],
	[
	AC_MSG_RESULT(no)
	])
 
dnl ---------------------------------------------------------------------------
dnl Check IPv6 support
dnl ---------------------------------------------------------------------------

AC_ARG_ENABLE(IPv6,[  --disable-IPv6          Disable support for IPv6],[
	if test "$enableval" = yes ; then
		ipv6support="yes"
	else
		ipv6support="no"
	fi],[
	ipv6support="yes"
	])

if test "$ipv6support" = "yes" ; then

	if test "$cross_compiling" = yes  ; then
		cat << EOF

ABOUT IPv6 SUPPORT:

  Can't check if IPv6 support is possible when cross-compiling. For now, lets
  assume that you want IPv6 support enabled. To disable it, comment the two
  appropriate lines in src/rtpconfig_unix.h before running make.

EOF
	else
	
		AC_MSG_CHECKING(IPv6 support)
		AC_RUN_IFELSE([
			#include <sys/types.h>
			#include <sys/socket.h>
			int main(void)
			{
			int s;
		
			s = socket(PF_INET6,SOCK_DGRAM,0);
			if (s < 0)
				return -1;
			return 0;
			}
			],
			[AC_MSG_RESULT(enabled)
				RTP_SUPPORT_IPV6="#define RTP_SUPPORT_IPV6"
				
			dnl ---------------------------------------------------------------------------
			dnl Check if multicast options are known
			dnl ---------------------------------------------------------------------------
			
			AC_MSG_CHECKING(if necessary options for IPv6 multicasting are available)
			AC_COMPILE_IFELSE([
				#include <sys/types.h>
				#include <sys/socket.h>
				#include <netinet/in.h>
		
				int main(void)
				{
					int testval;
					struct ipv6_mreq mreq,mreq2;
					mreq = mreq2; // avoid 'unused variable'
					testval = IPV6_MULTICAST_HOPS;
					testval = IPV6_JOIN_GROUP;
					testval = IPV6_LEAVE_GROUP;
					return 0;
				}
				],[
				AC_MSG_RESULT(yes)
				RTP_SUPPORT_IPV6MULTICAST="#define RTP_SUPPORT_IPV6MULTICAST"],
				AC_MSG_RESULT(no))],
			[
			AC_MSG_RESULT(disabled)
			])
	fi
fi

dnl ---------------------------------------------------------------------------
dnl Check if ifaddrs.h exists so we can use getifaddrs
dnl ---------------------------------------------------------------------------

AC_CHECK_HEADER(ifaddrs.h,[RTP_SUPPORT_IFADDRS="#define RTP_SUPPORT_IFADDRS"])

dnl ---------------------------------------------------------------------------
dnl Check gstreamer support
dnl ---------------------------------------------------------------------------

AC_ARG_ENABLE(gst,[  --disable-gst           Disable support GStreamer],[
	if test "$enableval" = yes ; then
		gstsupport="yes"
	else
		gstsupport="no"
	fi],[
	gstsupport="yes"
	])

if test "$gstsupport" = "yes" ; then

	dnl uninstalled is selected preferentially -- see pkg-config(1)
	GST_REQ=0.9
	GST_MAJORMINOR=0.9
	PKG_CHECK_MODULES(GST, gstreamer-$GST_MAJORMINOR >= $GST_REQ,
	  HAVE_GST="yes", HAVE_GST="no")
	
	dnl check for gstreamer-plugins-base; uinstalled is selected preferentially
	PKG_CHECK_MODULES(GST_PLUGINS_BASE, gstreamer-plugins-base-$GST_MAJORMINOR >= $GST_REQ,
	  HAVE_GST_PLUGINS="yes", HAVE_GST_PLUGINS="no")
	
	if test "x$HAVE_GST_PLUGINS" = "xyes" && test "x$HAVE_GST" = "xyes"; then
	  RTP_SUPPORT_GST="#define RTP_SUPPORT_GST"
	  GST_LIBS="$GST_LIBS -lgstnet-$GST_MAJORMINOR"
	fi
	
	RTP_GSTINCLUDES="$GST_CFLAGS $GST_PLUGINS_BASE_CFLAGS"
	RTP_LINKLIBS="$RTP_LINKLIBS $GST_LIBS $GST_PLUGIN_BASE_LIBS"
fi

dnl ---------------------------------------------------------------------------
dnl Finish up...
dnl ---------------------------------------------------------------------------

AC_SUBST(RTP_FILIO)
AC_SUBST(RTP_SOCKIO)
AC_SUBST(RTP_ENDIAN)
AC_SUBST(RTP_SOCKLENTYPE_UINT)
AC_SUBST(RTP_JTHREADINCLUDES)
AC_SUBST(RTP_HAVE_SOCKADDR_LEN)
AC_SUBST(RTP_SUPPORT_IPV4MULTICAST)
AC_SUBST(RTP_SUPPORT_THREAD)
AC_SUBST(RTP_SUPPORT_SDESPRIV)
AC_SUBST(RTP_SUPPORT_INLINETEMPLATEPARAM)
AC_SUBST(RTP_SUPPORT_PROBATION)
AC_SUBST(RTP_SUPPORT_GNUDRAND)
AC_SUBST(RTP_SUPPORT_RANDR)
AC_SUBST(RTP_SUPPORT_GETLOGINR)
AC_SUBST(RTP_SUPPORT_IPV6)
AC_SUBST(RTP_SUPPORT_IPV6MULTICAST)
AC_SUBST(RTP_SUPPORT_IFADDRS)
AC_SUBST(RTP_SUPPORT_GST)
AC_SUBST(RTP_GSTINCLUDES)
AC_SUBST(RTP_LINKLIBS)
AC_OUTPUT(Makefile \
	  src/Makefile \
	  src/rtpconfig_unix.h \
	  doc/Makefile \
	  tools/Makefile \
	  examples/Makefile \
          pkgconfig/Makefile \
          pkgconfig/jrtplib.pc \
          pkgconfig/jrtplib-uninstalled.pc \
          )