proc test_procedure {} {
    global srcdir subdir
    set wd [pwd]
    set flags ""
    if {$srcdir == ""} {
	set pattern "*.c"
    } else {
	set pattern "$srcdir/$subdir/*.c"
    }

    # for first pass, force 64-bit compilation for 64-bit systems
    # Add any other 64-bit arcvhitecture you want tested below.
    # To find tcl's platform name for your machine, run the following:
    # echo "puts $::tcl_platform(machine)" | tclsh

    switch -regexp $::tcl_platform(machine) {
	^ia64$ {
	    set do_64_bit_pass 1
	    set flags "" 
	}
	^(x86_64|ppc64|s390x)$ { 
	    set do_64_bit_pass 1
	    set flags "additional_flags=-m64"
	}
	default {
	    set do_64_bit_pass 0
	}
    }

    if {$do_64_bit_pass} {
	foreach filename [lsort [glob $pattern]] {
	    set file [file tail [string range $filename 0 end-2]]
	    if {![installtest_p]} { untested $file; continue }
	    target_compile $filename $wd/$file executable $flags
	    send_log "Testing 64-bit ${file}\n"
	    set res [exec $srcdir/$subdir/test.tcl $file $filename]
	    if {$res == "PASS"} {
		pass "$file"
	    } elseif {$res == "UNSUPP"} {
		unsupported "$file not supported on this arch"
	    } else {
		fail "64-bit $file"
		send_log "$res\n"
	    }
	    catch {exec rm -f $wd/$file}
	}
    }

    set do_32_bit_pass 1    
    switch -regexp $::tcl_platform(machine) {
	^(x86_64|ppc64)$ {
	    set flags "additional_flags=-m32"
	}
	^s390x$ {
	    set flags "additional_flags=-m31"
	}
	^ia64$ {
	    set do_32_bit_pass 0
	}
    }

    if {$do_32_bit_pass} {
	foreach filename [lsort [glob $pattern]] {
	    set file [file tail [string range $filename 0 end-2]]
	    if {![installtest_p]} { untested $file; continue }
	    target_compile $filename $wd/$file executable $flags
	    send_log "Testing 32-bit ${file}\n"
	    set res [exec $srcdir/$subdir/test.tcl $file $filename]
	    if {$res == "PASS"} {
		pass "32-bit $file"
	    } elseif {$res == "UNSUPP"} {
		unsupported "$file not supported on this arch"
	    } else {
		fail "32-bit $file"
		send_log "$res\n"
	    }
	    catch {exec rm -f $wd/$file}
	}
    }
}

test_procedure