build

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# heuristic tweaks to clean up names -- PLEASE LIMIT THESE!
if [ "$os" = "unix" ]
then
	# might be Altos System V
	case $rel
	in
	  5.3*)		os=Altos;;
	esac
elif [ -r /unix -a -r /usr/lib/libseq.a -a -r /lib/cpp ]
then
	# might be a DYNIX/ptx 2.x system, which has a broken uname
	if strings /lib/cpp | grep _SEQUENT_ > /dev/null
	then
		os=PTX
	fi
elif [ -d /usr/nec ]
then
	# NEC machine -- what is it running?
	if [ "$os" = "UNIX_System_V" ]
	then
		os=EWS-UX_V
	elif [ "$os" = "UNIX_SV" ]
	then
		os=UX4800
	fi
elif [ "$arch" = "mips" ]
then
	case $rel
	in
	  4_*)
		if [ `uname -v` = "UMIPS" ]
		then
			os=RISCos
		fi;;
	esac
fi

# see if there is a "user suffix" specified
if [ "${SENDMAIL_SUFFIX-}x" = "x" ]
then
	sfx=""
else
	sfx=".${SENDMAIL_SUFFIX}"
fi

if [ ! -n "$Mflag" -a ! -n "$Aflag" ]
then
	echo "Configuration: pfx=$pfx, os=$os, rel=$rel, rbase=$rbase, rroot=$rroot, arch=$arch, sfx=$sfx, variant=$build_variant"
fi

SMROOT=${SMROOT-..}
BUILDTOOLS=${BUILDTOOLS-$SMROOT/devtools}
export SMROOT BUILDTOOLS

# see if we are in a Build-able directory
if [ ! -f Makefile.m4 -a ! -n "$Aflag" ]; then
	echo "Makefile.m4 not found.  Build can only be run from a source directory."
	exit $EX_UNAVAILABLE
fi

incdirs="$incdirs -I\${SRCDIR}/include"

if [ -z "$OBJ_ROOT" ]; then
	OBJ_ROOT=${SMROOT}
fi

if [ "${pfx}x" = "x" ]
then
	prefix=""
else
	prefix=".$pfx"
fi

# Print out the architecture (to build up an obj dir path) and exit
if [ -n "$Aflag" ]
then
	echo "$os.$rel.$arch$sfx"
	exit $EX_OK
fi

# now try to find a reasonable object directory
if [ -r ${OBJ_ROOT}/obj${prefix}.$os.$rel.$arch$sfx ]; then
	obj=${OBJ_ROOT}/obj${prefix}.$os.$rel.$arch$sfx
elif [ -r ${OBJ_ROOT}/obj${prefix}.$os.$rroot.$arch$sfx ]; then
	obj=${OBJ_ROOT}/obj${prefix}.$os.$rroot.$arch$sfx
elif [ -r ${OBJ_ROOT}/obj${prefix}.$os.$rbase.x.$arch$sfx ]; then
	obj=${OBJ_ROOT}/obj${prefix}.$os.$rbase.x.$arch$sfx
elif [ -r ${OBJ_ROOT}/obj${prefix}.$os.$rel$sfx ]; then
	obj=${OBJ_ROOT}/obj${prefix}.$os.$rel$sfx
elif [ -r ${OBJ_ROOT}/obj${prefix}.$os.$rbase.x$sfx ]; then
	obj=${OBJ_ROOT}/obj${prefix}.$os.$rbase.x$sfx
elif [ -r ${OBJ_ROOT}/obj${prefix}.$os.$arch$sfx ]; then
	obj=${OBJ_ROOT}/obj${prefix}.$os.$arch$sfx
elif [ -r ${OBJ_ROOT}/obj${prefix}.$rel.$arch$sfx ]; then
	obj=${OBJ_ROOT}/obj${prefix}.$rel.$arch$sfx
elif [ -r ${OBJ_ROOT}/obj${prefix}.$rbase.x.$arch$sfx ]; then
	obj=${OBJ_ROOT}/obj${prefix}.$rbase.x.$arch$sfx
elif [ -r ${OBJ_ROOT}/obj${prefix}.$os$sfx ]; then
	obj=${OBJ_ROOT}/obj${prefix}.$os$sfx
elif [ -r ${OBJ_ROOT}/obj${prefix}.$arch$sfx ]; then
	obj=${OBJ_ROOT}/obj${prefix}.$arch$sfx
elif [ -r ${OBJ_ROOT}/obj${prefix}.$rel$sfx ]; then
	obj=${OBJ_ROOT}/obj${prefix}.$rel$sfx
elif [ -r ${OBJ_ROOT}/obj${prefix}.$sfx ]; then
	obj=${OBJ_ROOT}/obj${prefix}.$sfx
fi

if [ -n "$obj" ]
then
	obj=${obj}/${src_dir}
fi

# Print the directory which would be used for the build and exit
if [ -n "$Mflag" ]
then
	if [ ! -n "$obj" ]
	then
		obj=${OBJ_ROOT}/obj.$os.$rel.$arch$sfx/${src_dir}
	fi
	echo "$obj"
	exit $EX_OK
fi

# Check if trying to use -f with an existing obj directory
if [ -n "$siteconfig" -a -n "$obj" -a -d "$obj" -a -z "$cflag" ]
then
	echo "Can not use Build's -f flag with an existing object tree."
	echo "If you wish to change configuration information, use the -c flag to clear"
	echo "the existing $obj tree."
	exit $EX_USAGE
fi

# Check if trying to use -Q with an existing obj directory
if [ -n "$pfx" -a -n "$obj" -a -d "$obj" -a -z "$cflag" ]
then
	echo "Can not use Build's -Q flag with an existing object tree."
	echo "If you wish to change configuration information, use the -c flag to clear"
	echo "the existing $obj tree."
	exit $EX_USAGE
fi


# Clean out the directory before building.
if [ "$cflag" ]
then
	if [ -n "$obj" ]
	then
		echo "Clearing out existing $obj tree"
		rm -rf $obj
	fi
fi

# If we didn't detect an existing obj directory, makeup a new obj name.
if [ -z "$obj" ]
then
	obj=${OBJ_ROOT}/obj${prefix}.$os.$rel.$arch$sfx/${src_dir}
fi

# Check if obj directory exists
if [ ! -r "$obj" ]
then
	if [ -r $BUILDTOOLS/OS/$os.$rel.$arch$sfx ]; then
		oscf=$os.$rel.$arch$sfx
	elif [ -r $BUILDTOOLS/OS/$os.$rel.$arch ]; then
		oscf=$os.$rel.$arch
	elif [ -r $BUILDTOOLS/OS/$os.$rroot.$arch$sfx ]; then
		oscf=$os.$rroot.$arch$sfx
	elif [ -r $BUILDTOOLS/OS/$os.$rroot.$arch ]; then
		oscf=$os.$rroot.$arch
	elif [ -r $BUILDTOOLS/OS/$os.$rbase.x.$arch$sfx ]; then
		oscf=$os.$rbase.x.$arch$sfx
	elif [ -r $BUILDTOOLS/OS/$os.$rbase.x.$arch ]; then
		oscf=$os.$rbase.x.$arch
	elif [ -r $BUILDTOOLS/OS/$os.$rel$sfx ]; then
		oscf=$os.$rel$sfx
	elif [ -r $BUILDTOOLS/OS/$os.$rel ]; then
		oscf=$os.$rel
	elif [ -r $BUILDTOOLS/OS/$os.$rroot$sfx ]; then
		oscf=$os.$rroot$sfx
	elif [ -r $BUILDTOOLS/OS/$os.$rroot ]; then
		oscf=$os.$rroot
	elif [ -r $BUILDTOOLS/OS/$os.$rbase.x$sfx ]; then
		oscf=$os.$rbase.x$sfx
	elif [ -r $BUILDTOOLS/OS/$os.$rbase.x ]; then
		oscf=$os.$rbase.x
	elif [ -r $BUILDTOOLS/OS/$os.$arch$sfx ]; then
		oscf=$os.$arch$sfx
	elif [ -r $BUILDTOOLS/OS/$os.$arch ]; then
		oscf=$os.$arch
	elif [ -r $BUILDTOOLS/OS/$rel.$arch$sfx ]; then
		oscf=$rel.$arch$sfx
	elif [ -r $BUILDTOOLS/OS/$rel.$arch ]; then
		oscf=$rel.$arch
	elif [ -r $BUILDTOOLS/OS/$rroot.$arch$sfx ]; then
		oscf=$rroot.$arch$sfx
	elif [ -r $BUILDTOOLS/OS/$rroot.$arch ]; then
		oscf=$rroot.$arch
	elif [ -r $BUILDTOOLS/OS/$rbase.x.$arch$sfx ]; then
		oscf=$rbase.x.$arch$sfx
	elif [ -r $BUILDTOOLS/OS/$rbase.x.$arch ]; then
		oscf=$rbase.x.$arch
	elif [ -r $BUILDTOOLS/OS/$os$sfx ]; then
		oscf=$os$sfx
	elif [ -r $BUILDTOOLS/OS/$os ]; then
		oscf=$os
	elif [ -r $BUILDTOOLS/OS/$arch$sfx ]; then
		oscf=$arch$sfx
	elif [ -r $BUILDTOOLS/OS/$arch ]; then
		oscf=$arch
	elif [ -r $BUILDTOOLS/OS/$rel$sfx ]; then
		oscf=$rel$sfx
	elif [ -r $BUILDTOOLS/OS/$rel ]; then
		oscf=$rel
	elif [ -r $BUILDTOOLS/OS/$rel$sfx ]; then
		oscf=$rel$sfx
	else
		echo "Cannot determine how to support $arch.$os.$rel" >&2
		exit $EX_UNAVAILABLE
	fi
	M4=`sh $BUILDTOOLS/bin/find_m4.sh`
	ret=$?
	if [ $ret -ne 0 ]
	then
		exit $ret
	fi
	echo "Using M4=$M4"
	export M4
	if [ "$mflag" ]
	then
		echo "Will run in virgin $obj using $BUILDTOOLS/OS/$oscf"
		exit $EX_OK
	fi

	echo "Creating $obj using $BUILDTOOLS/OS/$oscf"
	${mkdir} $obj

	# If this is WINNT then compile with relative paths
	# (based on REL_SRC_DIR), so we don't need to do any "linking"
	if [ ! $os = "WINNT.4.0" -a ! $os = "WINNT.5.0" -a ! $os = "WINNT" ]
	then
		ln="ln -s"
		(cd $obj; $ln ${obj_rel_base_dir}/${src_dir}/*.[ch13458] .)
		(cd $obj
		# This glob doesn't actually glob to something everywhere,
		# thus the protective measures.
		for i in ${obj_rel_base_dir}/${src_dir}/*.0 
		do 
			if [ -f $i ] 
			then 
				$ln $i `basename $i`.dist 
			fi 
		done)
		if [ -f helpfile ]
		then
			(cd $obj; $ln ${obj_rel_base_dir}/${src_dir}/helpfile .)
		fi
	fi

	rm -f $obj/.settings$$
	echo 'divert(-1)' > $obj/.settings$$
	cat $BUILDTOOLS/M4/header.m4 >> $obj/.settings$$
	echo "define(\`OS', \`\`$os'')" >> $obj/.settings$$
	echo "define(\`REL', \`\`$rel'')" >> $obj/.settings$$
	echo "define(\`ARCH', \`\`$arch'')" >> $obj/.settings$$
	cat $BUILDTOOLS/OS/$oscf >> $obj/.settings$$

	if [ $os = "WINNT.4.0" -o $os = "WINNT.5.0" -o $os = "WINNT" ]
	then
		# Append C: onto pwd's which don't have the preceding //
		# so that we can compile on non-network drives.
		# (Is there a way to get the real drive letter?)

		dir_prefix=`echo $absolute_base_dir | sed 's#\(..\).*#\1#'`
		if [ ! $dir_prefix = "//" ]
		then
			absolute_base_dir="//C$absolute_base_dir"
		fi

	        # Convert sh's //X to X: drive letters to make make (and cl) happy
		obj_rel_base_dir=`echo $absolute_base_dir | sed 's#^//\([a-zA-Z]\)#\1:#'`
		cur_dir=`pwd`
		cd $obj/..
		absolute_obj_dir=`pwd | sed 's#/#\\\\\\\\#g'`
		cd $cur_dir
		echo "ifdef(\`bldABS_OBJ_DIR',,\`define(\`bldABS_OBJ_DIR', \`$absolute_obj_dir')')" >> $obj/.settings$$
		rel_src_dir="$obj_rel_base_dir/$src_dir"
		echo "define(\`bldREL_SRC_DIR', \`$rel_src_dir')" >> $obj/.settings$$
	else
		cur_dir=`pwd`
		cd $obj/..
		absolute_obj_dir=`pwd`
		cd $cur_dir
		echo "ifdef(\`bldABS_OBJ_DIR',,\`define(\`bldABS_OBJ_DIR', \`$absolute_obj_dir')')" >> $obj/.settings$$
		rel_src_dir="$obj_rel_base_dir/$src_dir"
		echo "define(\`bldREL_SRC_DIR', \`$rel_src_dir')" >> $obj/.settings$$
	fi

	if [ ! -z "$pfx" ]
	then
		# They gave us a specific prefix, let's try it out.
		if [ -f $BUILDTOOLS/Site/$pfx.$oscf$sfx.m4 ]
		then
			siteconfig=$BUILDTOOLS/Site/$pfx.$oscf$sfx.m4
		elif [ -f $BUILDTOOLS/Site/$pfx.$oscf.m4 ]
		then
			siteconfig=$BUILDTOOLS/Site/$pfx.$oscf.m4
		fi
		if [ -f $BUILDTOOLS/Site/$pfx.config.m4 ]
		then
			siteconfig="$BUILDTOOLS/Site/$pfx.config.m4 $siteconfig"
		fi
	elif [ -z "$siteconfig" ]
	then
		# none specified, use defaults
		if [ -f $BUILDTOOLS/Site/site.$oscf$sfx.m4 ]
		then
			siteconfig=$BUILDTOOLS/Site/site.$oscf$sfx.m4
		elif [ -f $BUILDTOOLS/Site/site.$oscf.m4 ]
		then
			siteconfig=$BUILDTOOLS/Site/site.$oscf.m4
		fi
		if [ -f $BUILDTOOLS/Site/site.config.m4 ]
		then
			siteconfig="$BUILDTOOLS/Site/site.config.m4 $siteconfig"
		fi
		if [ -f $BUILDTOOLS/Site/site.post.m4 ]
		then
			siteconfig="$siteconfig $BUILDTOOLS/Site/site.post.m4"
		fi
	fi
	if [ ! -z "$siteconfig" ]
	then
		echo "Including $siteconfig"
		cat $siteconfig >> $obj/.settings$$
	fi
	if [ "$libdirs" ]
	then
		echo "define(\`confLIBDIRS', confLIBDIRS \`\`$libdirs'')" >> $obj/.settings$$
	fi
	if [ "$incdirs" ]
	then
		echo "define(\`confINCDIRS', \`\`$incdirs'' confINCDIRS)" >> $obj/.settings$$
	fi
	echo "define(\`_SRC_PATH_', \`\`$obj_rel_base_dir'')" >> $obj/.settings$$
	echo 'divert(0)dnl' >> $obj/.settings$$
	libdirs=`(cat $obj/.settings$$; echo "_SRIDBIL_= confLIBDIRS" ) | \
		sed -e 's/\(.\)include/\1_include_/g' -e 's/#define/#_define_/g' | \
		${M4} ${M4_BLDVARIANT_FLAGS} -DconfBUILDTOOLSDIR=$BUILDTOOLS - | \
		grep "^_SRIDBIL_=" | \
		sed -e 's/#_define_/#define/g' -e 's/_include_/include/g' -e "s/^_SRIDBIL_=//"`
	libsrch=`(cat $obj/.settings$$; echo "_HCRSBIL_= confLIBSEARCH" ) | \
		sed -e 's/\(.\)include/\1_include_/g' -e 's/#define/#_define_/g' | \
		${M4}  ${M4_BLDVARIANT_FLAGS} -DconfBUILDTOOLSDIR=$BUILDTOOLS - | \
		grep "^_HCRSBIL_=" | \
		sed -e 's/#_define_/#define/g' -e 's/_include_/include/g' -e "s/^_HCRSBIL_=//"`
	libpath=`(cat $obj/.settings$$; echo "_HCRSBIL_= confLIBSEARCHPATH" ) | \
		sed -e 's/\(.\)include/\1_include_/g' -e 's/#define/#_define_/g' | \
		${M4} ${M4_BLDVARIANT_FLAGS} -DconfBUILDTOOLSDIR=$BUILDTOOLS - | \
		grep "^_HCRSBIL_=" | \
		sed -e 's/#_define_/#define/g' -e 's/_include_/include/g' -e "s/^_HCRSBIL_=//"`
	echo 'divert(-1)' >> $obj/.settings$$
	LIBDIRS="$libdirs" LIBSRCH="$libsrch" LIBPATH="$libpath" SITECONFIG="$siteconfig" sh $BUILDTOOLS/bin/configure.sh $sflag $oscf >> $obj/.settings$$
	echo 'divert(0)dnl' >> $obj/.settings$$
	sed -e 's/\(.\)include/\1_include_/g' -e 's/#define/#_define_/g' -e 's/
//g' $obj/.settings$$ | \
		${M4}  ${M4_BLDVARIANT_FLAGS} -DconfBUILDTOOLSDIR=$BUILDTOOLS - Makefile.m4 | \
		sed -e 's/#_define_/#define/g' -e 's/_include_/include/g' -e 's/
//g' > $obj/Makefile
	# That ^M up there was added by quoting it in emacs.
	# Make has problems if lines end in ^M^M, but not in ^M apparently
	if [ $? -ne 0 -o ! -s $obj/Makefile ]
	then
		echo "ERROR: ${M4} failed; You may need a newer version of M4, at least as new as System V or GNU" 1>&2
		rm -rf $obj
		exit $EX_UNAVAILABLE
	fi
	rm -f $obj/.settings$$
	echo "Making dependencies in $obj"
	(cd $obj; ${MAKE-make} depend)
fi

if [ "$mflag" ]
then
	makefile=`ls -l $obj/Makefile | sed 's/.* //'`
	if [ -z "$makefile" ]
	then
		echo "ERROR: $obj exists but has no Makefile" >&2
		exit $EX_NOINPUT
	fi
	echo "Will run in existing $obj using $makefile"
	exit $EX_OK
fi

echo "Making in $obj"
cd $obj
eval exec ${MAKE-make} SENDMAIL_BUILD_FLAGS=\"$SENDMAIL_BUILD_FLAGS\" $makeargs