configure.in

###############################################################################
# Configure.in
#
# Copyright (c) 2006-2009 by Cisco Systems, Inc.
# All rights reserved. 
###############################################################################

dnl configure.in for vqe

AC_INIT(vqe, 1.0)
AM_INIT_AUTOMAKE
AC_CONFIG_FILES(environ.mk pkgconfig/vqe-c.pc pkgconfig/Makefile)

dnl Check for optional args
AC_ARG_ENABLE(openssl,
  [  --disable-openssl       compile without openssl support (enabled by default)],
  [sslon=$enableval], [sslon=yes])
AC_ARG_ENABLE(elog,
  [  --enable-elog           compile with elog support (disabled by default)],
  [elogon=$enableval], [elogon=no])
AC_ARG_ENABLE(syslog,
  [  --disable-syslog        compile without syslog support (enabled by default)],
  [syslogon=$enableval], [syslogon=yes])
AC_ARG_ENABLE(fcc,
  [  --disable-fcc           compile without fcc support (enabled by default)],
  [fccon=$enableval], [fccon=yes])
AC_ARG_ENABLE(hag,
  [  --disable-hag           compile with hag commands (enabled by default)],
  [hagon=$enableval], [hagon=yes])
AC_ARG_ENABLE(stun,
  [  --disable-stun          compile without stun support (enabled by default)],
  [stunon=$enableval], [stunon=yes])
AC_ARG_ENABLE(iplm,
  [  --enable-iplm           compile with iplm_support (disabled by default)],
  [iplmon=$enableval], [iplmon=no])
AC_ARG_ENABLE(smallvqecstack,
  [  --enable-smallvqecstack compile with a small vqec stack size (disabled by default)],
  [smallvqecstackon=$enableval], [smallvqecstackon=no])
AC_ARG_ENABLE(upnp,
  [  --enable-upnp           compile with upnp support (disabled by default)],
  [upnpon=$enableval], [upnpon=no])
AC_ARG_ENABLE(cisco-rtsp-library,
  [  --enable-cisco-rtsp-library
                          compile with Cisco RTSP library for VoD support (disabled by default)],
  [rtsplibon=$enableval], [rtsplibon=no])
AC_ARG_ENABLE(sched-jitter-histogram,
  [  --enable-sched-jitter-histogram
                          compile with scheduling jitter histogram enabled (disabled by default)],
  [histon=$enableval], [histon=no])
AC_ARG_VAR(VQEC_TMP_FILE_PATH,
  	upcall socket temporary files path (default is /tmp))
AC_ARG_VAR(VQEC_KERNEL_DEVNODE_PATH,
	kernel module vqec0 device path (default is /dev))

dnl Checks for programs.
AC_PROG_CC
AC_PROG_LN_S
AC_PROG_CXX
AC_CHECK_TOOL([AR], [ar], [:])
AC_CHECK_TOOL([LD], [ld], [:])
AC_CHECK_TOOL([STRIP], [strip], [:])
AC_PATH_PROG([ARPATH], [ar], [:])
AC_PATH_PROG([ARPATH], [ld], [:])
AC_PATH_PROG([ARPATH], [strip], [:])

dnl Set target-type, KERNELSOURCE and CROSS_COMPILE
dnl
dnl KERNELSOURCE is only set for the i?86 case, since the assumption
dnl is that the user is compiling for the native machine whose kernel
dnl version can be detected
dnl
dnl CROSS_COMPILE is set for non-native builds (we assume the build
dnl machine is an i?86) based on the $CC prefix
machine=`($CC -dumpmachine)`
case $machine in
 i?86-*-*) 	AC_SUBST(OBJECT_X86, 1)
		AC_SUBST(DOBJ_TARGET, "-DOBJECT_X86=1")
		AC_SUBST(ARCH, x86)
		if test -e "/lib/modules/`uname -r`/source"; then
		   AC_SUBST(KERNELSOURCE, "/lib/modules/`uname -r`/source")
		fi;;
 mipsel-*-*)	AC_SUBST(OBJECT_4K, 1)
		AC_SUBST(DOBJ_TARGET, "-DOBJECT_4K=1")
		AC_SUBST(ARCH, mipsel-linux)
		AC_SUBST(CROSS_COMPILE, `echo $CC | sed 's/gcc$//'`);;
 mips-*)	AC_SUBST(OBJECT_4K, 1)
		AC_SUBST(DOBJ_TARGET, "-DOBJECT_4K=1")
		AC_SUBST(ARCH, mips-linux)
		AC_SUBST(CROSS_COMPILE, `echo $CC | sed 's/gcc$//'`);;
 sh4-*)		AC_SUBST(OBJECT_SH4, 1)
		AC_SUBST(DOBJ_TARGET, "-DOBJECT_SH4=1")
		AC_SUBST(ARCH, sh4-linux)
		AC_SUBST(CROSS_COMPILE, `echo $CC | sed 's/gcc$//'`);;
 *) 		AC_MSG_ERROR("Unsupported target");;
esac

dnl OpenSSL check
AC_CHECK_HEADERS(openssl/evp.h)

if test "x$ac_cv_header_openssl_evp_h" = "xyes"; then
	AC_CHECK_LIB(ssl, EVP_sha1)
fi

if test "$sslon" = "yes"; then
	if test "x$ac_cv_lib_ssl_EVP_sha1" = "xyes"; then
		AC_DEFINE(HAVE_OPENSSL, 1,
			[Define if your system supports the openssl library])
		AC_MSG_RESULT(openSSL support enabled)
		AC_SUBST(HAVE_OPENSSL, 1)
		AC_SUBST(DHAVE_OPENSSL, "-DHAVE_OPENSSL=1")
	else
		AC_MSG_ERROR(openSSL not found!)
	fi
else
	AC_MSG_RESULT(openSSL support disabled)		
fi


dnl Libc-lock check for Syslog client
AC_CHECK_HEADERS(bits/libc-lock.h) 

if test "$syslogon" = "yes"; then
	if test "x$ac_cv_header_bits_libc_lock_h" = "xyes"; then
		AC_DEFINE(HAVE_SYSLOG, 1,
			[Define if your system will support syslog])
		AC_MSG_RESULT(Syslog enabled)
		AC_SUBST(HAVE_SYSLOG, 1)
		AC_SUBST(DHAVE_SYSLOG, "-DHAVE_SYSLOG=1")
	else
		AC_MSG_ERROR(Syslog cannot be supported!)
	fi
else
	AC_MSG_RESULT(Syslog support disabled)
fi

if test "$fccon" = "yes"; then
   	AC_DEFINE(HAVE_FCC, 1,
		[Define if your system will support fcc])
	AC_MSG_RESULT(Fcc enabled)
	AC_SUBST(HAVE_FCC, 1)
	AC_SUBST(DHAVE_FCC, "-DHAVE_FCC=1")
else
	AC_MSG_RESULT(Fcc support disabled)
fi

if test "$hagon" = "yes"; then
   	AC_DEFINE(HAVE_HAG_MODE, 1,
		[Define if your system will support hag-mode commands])
	AC_MSG_RESULT(Hag commands enabled)
	AC_SUBST(HAVE_HAG_MODE, 1)
	AC_SUBST(DHAVE_HAG_MODE, "-DHAVE_HAG_MODE=1")
else
	AC_MSG_RESULT(Hag commands disabled)
fi

if test "$iplmon" = "yes"; then
   	AC_DEFINE(HAVE_IPLM, 1,
		[Define if your system will support iplm])
	AC_MSG_RESULT(Iplm enabled)
	AC_SUBST(HAVE_IPLM, 1)
	AC_SUBST(DHAVE_IPLM, "-DHAVE_IPLM=1")
else
	AC_MSG_RESULT(Iplm disabled)
fi


dnl Elog support
AC_CHECK_LIB(rt, aio_fsync)

if test "$elogon" = "yes"; then
	if test "x$ac_cv_lib_rt_aio_fsync" = "xyes"; then
		AC_DEFINE(HAVE_ELOG, 1,
			[Define if your system will support elog])
		AC_MSG_RESULT(Elog enabled)
		AC_SUBST(HAVE_ELOG, 1)
		AC_SUBST(DHAVE_ELOG, "-DHAVE_ELOG=1")
	else
		AC_MSG_ERROR(Librt cannot be supported!)
	fi
else
	AC_MSG_RESULT(Elog support disabled)
fi

dnl STUN support
if test "$stunon" = "yes"; then
   	AC_DEFINE(HAVE_STUN, 1,
		[Define if your system will support STUN])
	AC_MSG_RESULT(STUN enabled)
	AC_SUBST(HAVE_STUN, 1)
	AC_SUBST(DHAVE_STUN, "-DHAVE_STUN=1")
else
	AC_MSG_RESULT(STUN support disabled)
fi

dnl VQEC stack size
if test "$smallvqecstackon" = "yes"; then
	AC_DEFINE(USE_SMALL_VQEC_STACK, 1,
		[Define if your system needs a small client image])
	AC_MSG_RESULT(USE_SMALL_VQEC_STACK enabled)
	AC_SUBST(USE_SMALL_VQEC_STACK, 1)
	AC_SUBST(DUSE_SMALL_VQEC_STACK, "-DUSE_SMALL_VQEC_STACK=1")
else
	AC_MSG_RESULT(VQEC normal stack size enabled)
fi

dnl UPNP support
if test "$upnpon" = "yes"; then
	AC_DEFINE(HAVE_UPNP, 1,
		[Define if your system will support UPnP])
	AC_MSG_RESULT(HAVE_UPNP enabled)
	AC_SUBST(HAVE_UPNP, 1)
	AC_SUBST(DHAVE_UPNP, "-DHAVE_UPNP=1")
else
	AC_MSG_RESULT(UPNP support disabled)
fi

dnl Cisco RTSP library support
if test "$rtsplibon" = "yes"; then
	AC_DEFINE(HAVE_CISCO_RTSP_LIBRARY, 1,
		[Define if your system will support the Cisco RTSP library])
	AC_MSG_RESULT(HAVE_CISCO_RTSP_LIBRARY enabled)
	AC_SUBST(HAVE_CISCO_RTSP_LIBRARY, 1)
	AC_SUBST(DHAVE_CISCO_RTSP_LIBRARY, "-DHAVE_CISCO_RTSP_LIBRARY=1")
else
	AC_MSG_RESULT(Cisco RTSP library support disabled)
fi

dnl Scheduling jitter histogram support
if test "$histon" = "yes"; then
	AC_DEFINE(HAVE_SCHED_JITTER_HISTOGRAM, 1,
		[Define to enable the scheduling jitter histogram])
	AC_MSG_RESULT(HAVE_SCHED_JITTER_HISTOGRAM enabled)
	AC_SUBST(HAVE_SCHED_JITTER_HISTOGRAM, 1)
	AC_SUBST(DHAVE_SCHED_JITTER_HISTOGRAM, "-DHAVE_SCHED_JITTER_HISTOGRAM=1")
else
	AC_MSG_RESULT(SCHED_JITTER_HISTOGRAM support disabled)
fi

dnl Check for strlcpy and strlcat
AC_CHECK_FUNC(strlcpy)
AC_CHECK_FUNC(strlcat)

if test "x$ac_cv_func_strlcpy" = "xyes" &&
   test "x$ac_cv_func_strlcat" = "xyes"; then
	AC_DEFINE(HAVE_STRLFUNCS, 1,
		[Define if your system has strlcpy() and strlcat()])
	AC_SUBST(HAVE_STRLFUNCS, 1)
	AC_SUBST(DHAVE_STRLFUNCS, "-DHAVE_STRLFUNCS=1")
fi

dnl Output override to the socket temporary file path 
tmpfilepath=`echo "$VQEC_TMP_FILE_PATH" | sed 's/\/\s*$//' `
if test "x$VQEC_TMP_FILE_PATH" != "x"; then
	AC_SUBST(DVQEC_TMP_FILE_PATH, 
		-DVQEC_TMP_FILE_PATH="\"\\\"$tmpfilepath""/\\\"\"")
fi

dnl Output override to the device node file path 
tmpdevpath=`echo "$VQEC_KERNEL_DEVNODE_PATH" | sed 's/\/\s*$//' `
if test "x$VQEC_KERNEL_DEVNODE_PATH" != "x"; then
	AC_SUBST(DVQEC_KERNEL_DEVNODE_PATH, 
		-DVQEC_KERNEL_DEVNODE_PATH="\"\\\"$tmpdevpath""/\\\"\"")
fi

AC_OUTPUT()

# Configure 3rd-party packages here.
AC_CONFIG_COMMANDS_POST ([
 if [ -d 3rd-party-src ];
 then 
   echo "Configuring 3rd-party packages...";
   make -wC vqec_obj vqec_config_packages;
 else 
   echo "Cannot find subdir 3rd-party-src; not configuring 3rd-party libs.";
 fi;
])