[Bug other/87755] [9 regression] ERROR: couldn't compile regular expression pattern: quantifier operand invalid

[seurer at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87755

--- Comment #1 from seurer at gcc dot gnu.org ---
Note: This happens during a make check.

This may be more of the error output:

ERROR: tcl error sourcing
/home/seurer/gcc/gcc-test2/gcc/testsuite/g++.dg/lto/lto.exp.
ERROR: couldn't compile regular expression pattern: quantifier operand invalid
    while executing
"regsub -all $pat $text "\n" text"
    (procedure "lto_handle_diagnostics_for_file" line 28)
    invoked from within
"lto_handle_diagnostics_for_file $testcase $src  ${dg-messages} $text"
    (procedure "lto_handle_diagnostics" line 15)
    invoked from within
"lto_handle_diagnostics $comp_output"
    (procedure "lto-link-and-maybe-run" line 47)
    invoked from within
"lto-link-and-maybe-run  "[lindex $obj_list 0]-[lindex $obj_list end]" 
$obj_list $execname $filtered ${dg-extra-ld-options}  $filtered"
    (procedure "lto-execute" line 142)
    invoked from within
"lto-execute $src $sid"
    ("foreach" body line 7)
    invoked from within
"foreach src [lsort [find $srcdir/$subdir *_0.\[cC\]]] {
    # If we're only testing specific files and this isn't one of them, skip it.
    if ![runte..."
    (file "/home/seurer/gcc/gcc-test2/gcc/testsuite/g++.dg/lto/lto.exp" line
51)
    invoked from within
"source /home/seurer/gcc/gcc-test2/gcc/testsuite/g++.dg/lto/lto.exp"
    ("uplevel" body line 1)
    invoked from within
"uplevel #0 source /home/seurer/gcc/gcc-test2/gcc/testsuite/g++.dg/lto/lto.exp"
    invoked from within
"catch "uplevel #0 source $test_file_name""