diff --git a/.github/workflows/GnuTests.yml b/.github/workflows/GnuTests.yml
index fedd6e4d5..f2b0ddd45 100644
--- a/.github/workflows/GnuTests.yml
+++ b/.github/workflows/GnuTests.yml
@@ -198,7 +198,7 @@ jobs:
           do
             if ! grep -Fxq ${LINE}<<<"${REF_ERROR}"
             then
-              echo "::error ::GNU test failed: ${LINE}. ${LINE} is passing on '${{ steps.vars.outputs.repo_default_branch }}'. Maybe you have to rebase?"
+              echo "::error ::GNU test error: ${LINE}. ${LINE} is passing on '${{ steps.vars.outputs.repo_default_branch }}'. Maybe you have to rebase?"
               have_new_failures="true"
             fi
           done
diff --git a/Cargo.lock b/Cargo.lock
index 69a83941b..e676db6c8 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -273,9 +273,9 @@ dependencies = [
 
 [[package]]
 name = "clap_complete"
-version = "3.1.2"
+version = "3.1.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1506b87ee866f7a53a5131f7b31fba656170d797e873d0609884cfd56b8bbda8"
+checksum = "1d7ca9141e27e6ebc52e3c378b0c07f3cea52db46ed1cc5861735fb697b56356"
 dependencies = [
  "clap 3.1.12",
 ]
@@ -1021,9 +1021,9 @@ checksum = "830d08ce1d1d941e6b30645f1a0eb5643013d835ce3779a5fc208261dbe10f55"
 
 [[package]]
 name = "libc"
-version = "0.2.124"
+version = "0.2.125"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "21a41fed9d98f27ab1c6d161da622a4fa35e8a54a8adc24bbf3ddd0ef70b0e50"
+checksum = "5916d2ae698f6de9bfb891ad7a8d65c09d232dc58cc4ac433c7da3b2fd84bc2b"
 
 [[package]]
 name = "libloading"
@@ -1623,9 +1623,9 @@ dependencies = [
 
 [[package]]
 name = "retain_mut"
-version = "0.1.2"
+version = "0.1.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "53552c6c49e1e13f1a203ef0080ab3bbef0beb570a528993e83df057a9d9bba1"
+checksum = "8c31b5c4033f8fdde8700e4657be2c497e7288f01515be52168c631e2e4d4086"
 
 [[package]]
 name = "rlimit"
diff --git a/src/uu/chmod/Cargo.toml b/src/uu/chmod/Cargo.toml
index 9fab6011e..df0b089fa 100644
--- a/src/uu/chmod/Cargo.toml
+++ b/src/uu/chmod/Cargo.toml
@@ -16,7 +16,7 @@ path = "src/chmod.rs"
 
 [dependencies]
 clap = { version = "3.1", features = ["wrap_help", "cargo"] }
-libc = "0.2.124"
+libc = "0.2.125"
 uucore = { version=">=0.0.11", package="uucore", path="../../uucore", features=["fs", "mode"] }
 
 [[bin]]
diff --git a/src/uu/cp/Cargo.toml b/src/uu/cp/Cargo.toml
index 9e1141650..f9036101a 100644
--- a/src/uu/cp/Cargo.toml
+++ b/src/uu/cp/Cargo.toml
@@ -21,7 +21,7 @@ path = "src/cp.rs"
 [dependencies]
 clap = { version = "3.1", features = ["wrap_help", "cargo"] }
 filetime = "0.2"
-libc = "0.2.124"
+libc = "0.2.125"
 quick-error = "2.0.1"
 selinux = { version="0.2", optional=true }
 uucore = { version=">=0.0.11", package="uucore", path="../../uucore", features=["entries", "fs", "perms", "mode"] }
diff --git a/src/uu/hostid/Cargo.toml b/src/uu/hostid/Cargo.toml
index 0a2948459..d29160b21 100644
--- a/src/uu/hostid/Cargo.toml
+++ b/src/uu/hostid/Cargo.toml
@@ -16,7 +16,7 @@ path = "src/hostid.rs"
 
 [dependencies]
 clap = { version = "3.1", features = ["wrap_help", "cargo"] }
-libc = "0.2.124"
+libc = "0.2.125"
 uucore = { version=">=0.0.11", package="uucore", path="../../uucore" }
 
 [[bin]]
diff --git a/src/uu/kill/Cargo.toml b/src/uu/kill/Cargo.toml
index 354ad1d3f..24347a90a 100644
--- a/src/uu/kill/Cargo.toml
+++ b/src/uu/kill/Cargo.toml
@@ -16,7 +16,7 @@ path = "src/kill.rs"
 
 [dependencies]
 clap = { version = "3.1", features = ["wrap_help", "cargo"] }
-libc = "0.2.124"
+libc = "0.2.125"
 uucore = { version=">=0.0.11", package="uucore", path="../../uucore", features=["signals"] }
 
 [[bin]]
diff --git a/src/uu/logname/Cargo.toml b/src/uu/logname/Cargo.toml
index 22b976dd6..fe7f2f738 100644
--- a/src/uu/logname/Cargo.toml
+++ b/src/uu/logname/Cargo.toml
@@ -15,7 +15,7 @@ edition = "2021"
 path = "src/logname.rs"
 
 [dependencies]
-libc = "0.2.124"
+libc = "0.2.125"
 clap = { version = "3.1", features = ["wrap_help", "cargo"] }
 uucore = { version=">=0.0.11", package="uucore", path="../../uucore" }
 
diff --git a/src/uu/mkfifo/Cargo.toml b/src/uu/mkfifo/Cargo.toml
index a6c801747..821d67d53 100644
--- a/src/uu/mkfifo/Cargo.toml
+++ b/src/uu/mkfifo/Cargo.toml
@@ -16,7 +16,7 @@ path = "src/mkfifo.rs"
 
 [dependencies]
 clap = { version = "3.1", features = ["wrap_help", "cargo"] }
-libc = "0.2.124"
+libc = "0.2.125"
 uucore = { version=">=0.0.11", package="uucore", path="../../uucore" }
 
 [[bin]]
diff --git a/src/uu/mknod/Cargo.toml b/src/uu/mknod/Cargo.toml
index 53cc62313..88c9e3fb0 100644
--- a/src/uu/mknod/Cargo.toml
+++ b/src/uu/mknod/Cargo.toml
@@ -17,7 +17,7 @@ path = "src/mknod.rs"
 
 [dependencies]
 clap = { version = "3.1", features = ["wrap_help", "cargo"] }
-libc = "^0.2.124"
+libc = "^0.2.125"
 uucore = { version=">=0.0.11", package="uucore", path="../../uucore", features=["mode"] }
 
 [[bin]]
diff --git a/src/uu/mktemp/src/mktemp.rs b/src/uu/mktemp/src/mktemp.rs
index 54283b9af..f999d6675 100644
--- a/src/uu/mktemp/src/mktemp.rs
+++ b/src/uu/mktemp/src/mktemp.rs
@@ -79,7 +79,11 @@ pub fn uumain(args: impl uucore::Args) -> UResult<()> {
     let template = matches.value_of(ARG_TEMPLATE).unwrap();
     let tmpdir = matches.value_of(OPT_TMPDIR).unwrap_or_default();
 
-    let (template, mut tmpdir) = if matches.is_present(OPT_TMPDIR)
+    // Treat the template string as a path to get the directory
+    // containing the last component.
+    let path = PathBuf::from(template);
+
+    let (template, tmpdir) = if matches.is_present(OPT_TMPDIR)
         && !PathBuf::from(tmpdir).is_dir() // if a temp dir is provided, it must be an actual path
         && tmpdir.contains("XXX")
     // If this is a template, it has to contain at least 3 X
@@ -97,8 +101,24 @@ pub fn uumain(args: impl uucore::Args) -> UResult<()> {
         let tmp = env::temp_dir();
         (tmpdir, tmp)
     } else if !matches.is_present(OPT_TMPDIR) {
-        let tmp = env::temp_dir();
-        (template, tmp)
+        // In this case, the command line was `mktemp -t XXX`, so we
+        // treat the argument `XXX` as though it were a filename
+        // regardless of whether it has path separators in it.
+        if matches.is_present(OPT_T) {
+            let tmp = env::temp_dir();
+            (template, tmp)
+        // In this case, the command line was `mktemp XXX`, so we need
+        // to parse out the parent directory and the filename from the
+        // argument `XXX`, since it may be include path separators.
+        } else {
+            let tmp = match path.parent() {
+                None => PathBuf::from("."),
+                Some(d) => PathBuf::from(d),
+            };
+            let filename = path.file_name();
+            let template = filename.unwrap().to_str().unwrap();
+            (template, tmp)
+        }
     } else {
         (template, PathBuf::from(tmpdir))
     };
@@ -113,10 +133,6 @@ pub fn uumain(args: impl uucore::Args) -> UResult<()> {
         return Err(MkTempError::InvalidTemplate(template.into()).into());
     }
 
-    if matches.is_present(OPT_T) {
-        tmpdir = env::temp_dir();
-    }
-
     let res = if dry_run {
         dry_exec(tmpdir, prefix, rand, suffix)
     } else {
@@ -272,5 +288,19 @@ fn exec(dir: &Path, prefix: &str, rand: usize, suffix: &str, make_dir: bool) ->
             .map_err(|e| MkTempError::PersistError(e.file.path().to_path_buf()))?
             .1
     };
+
+    // Get just the last component of the path to the created
+    // temporary file or directory.
+    let filename = path.file_name();
+    let filename = filename.unwrap().to_str().unwrap();
+
+    // Join the directory to the path to get the path to print. We
+    // cannot use the path returned by the `Builder` because it gives
+    // the absolute path and we need to return a filename that matches
+    // the template given on the command-line which might be a
+    // relative path.
+    let mut path = dir.to_path_buf();
+    path.push(filename);
+
     println_verbatim(path).map_err_context(|| "failed to print directory name".to_owned())
 }
diff --git a/src/uu/nice/Cargo.toml b/src/uu/nice/Cargo.toml
index ab4b6c700..9b6ca52bd 100644
--- a/src/uu/nice/Cargo.toml
+++ b/src/uu/nice/Cargo.toml
@@ -16,7 +16,7 @@ path = "src/nice.rs"
 
 [dependencies]
 clap = { version = "3.1", features = ["wrap_help", "cargo"] }
-libc = "0.2.124"
+libc = "0.2.125"
 nix = { version = "0.24.1", default-features = false }
 uucore = { version=">=0.0.11", package="uucore", path="../../uucore" }
 
diff --git a/src/uu/nohup/Cargo.toml b/src/uu/nohup/Cargo.toml
index 26e5fd7ae..ba38a7ecd 100644
--- a/src/uu/nohup/Cargo.toml
+++ b/src/uu/nohup/Cargo.toml
@@ -16,7 +16,7 @@ path = "src/nohup.rs"
 
 [dependencies]
 clap = { version = "3.1", features = ["wrap_help", "cargo"] }
-libc = "0.2.124"
+libc = "0.2.125"
 atty = "0.2"
 uucore = { version=">=0.0.11", package="uucore", path="../../uucore", features=["fs"] }
 
diff --git a/src/uu/nproc/Cargo.toml b/src/uu/nproc/Cargo.toml
index 80c1cb38b..f52f2d0db 100644
--- a/src/uu/nproc/Cargo.toml
+++ b/src/uu/nproc/Cargo.toml
@@ -15,7 +15,7 @@ edition = "2021"
 path = "src/nproc.rs"
 
 [dependencies]
-libc = "0.2.124"
+libc = "0.2.125"
 num_cpus = "1.10"
 clap = { version = "3.1", features = ["wrap_help", "cargo"] }
 uucore = { version=">=0.0.11", package="uucore", path="../../uucore", features=["fs"] }
diff --git a/src/uu/pathchk/Cargo.toml b/src/uu/pathchk/Cargo.toml
index 44cab8559..dd8b83076 100644
--- a/src/uu/pathchk/Cargo.toml
+++ b/src/uu/pathchk/Cargo.toml
@@ -16,7 +16,7 @@ path = "src/pathchk.rs"
 
 [dependencies]
 clap = { version = "3.1", features = ["wrap_help", "cargo"] }
-libc = "0.2.124"
+libc = "0.2.125"
 uucore = { version=">=0.0.11", package="uucore", path="../../uucore" }
 
 [[bin]]
diff --git a/src/uu/ptx/src/ptx.rs b/src/uu/ptx/src/ptx.rs
index 86a123530..2f253b580 100644
--- a/src/uu/ptx/src/ptx.rs
+++ b/src/uu/ptx/src/ptx.rs
@@ -5,7 +5,7 @@
 //  * For the full copyright and license information, please view the LICENSE
 //  * file that was distributed with this source code.
 
-// spell-checker:ignore (ToDOs) corasick memchr Roff trunc oset iset
+// spell-checker:ignore (ToDOs) corasick memchr Roff trunc oset iset CHARCLASS
 
 use clap::{crate_version, Arg, Command};
 use regex::Regex;
@@ -31,6 +31,8 @@ const ABOUT: &str = "\
     Mandatory arguments to long options are mandatory for short options too.\n\
     With no FILE, or when FILE is -, read standard input. Default is '-F /'.";
 
+const REGEX_CHARCLASS: &str = "^-]\\";
+
 #[derive(Debug)]
 enum OutFormat {
     Dumb,
@@ -88,6 +90,18 @@ fn read_word_filter_file(
     Ok(words)
 }
 
+/// reads contents of file as unique set of characters to be used with the break-file option
+fn read_char_filter_file(
+    matches: &clap::ArgMatches,
+    option: &str,
+) -> std::io::Result<HashSet<char>> {
+    let filename = matches.value_of(option).expect("parsing options failed!");
+    let mut reader = File::open(filename)?;
+    let mut buffer = String::new();
+    reader.read_to_string(&mut buffer)?;
+    Ok(buffer.chars().collect())
+}
+
 #[derive(Debug)]
 struct WordFilter {
     only_specified: bool,
@@ -113,9 +127,23 @@ impl WordFilter {
         } else {
             (false, HashSet::new())
         };
-        if matches.is_present(options::BREAK_FILE) {
-            return Err(PtxError::NotImplemented("-b").into());
-        }
+        let break_set: Option<HashSet<char>> = if matches.is_present(options::BREAK_FILE)
+            && !matches.is_present(options::WORD_REGEXP)
+        {
+            let chars =
+                read_char_filter_file(matches, options::BREAK_FILE).map_err_context(String::new)?;
+            let mut hs: HashSet<char> = if config.gnu_ext {
+                HashSet::new() // really only chars found in file
+            } else {
+                // GNU off means at least these are considered
+                [' ', '\t', '\n'].iter().cloned().collect()
+            };
+            hs.extend(chars);
+            Some(hs)
+        } else {
+            // if -W takes precedence or default
+            None
+        };
         // Ignore empty string regex from cmd-line-args
         let arg_reg: Option<String> = if matches.is_present(options::WORD_REGEXP) {
             match matches.value_of(options::WORD_REGEXP) {
@@ -134,7 +162,21 @@ impl WordFilter {
         let reg = match arg_reg {
             Some(arg_reg) => arg_reg,
             None => {
-                if config.gnu_ext {
+                if break_set.is_some() {
+                    format!(
+                        "[^{}]+",
+                        break_set
+                            .unwrap()
+                            .into_iter()
+                            .map(|c| if REGEX_CHARCLASS.contains(c) {
+                                format!("\\{}", c)
+                            } else {
+                                c.to_string()
+                            })
+                            .collect::<Vec<String>>()
+                            .join("")
+                    )
+                } else if config.gnu_ext {
                     "\\w+".to_owned()
                 } else {
                     "[^ \t\n]+".to_owned()
diff --git a/src/uu/rmdir/Cargo.toml b/src/uu/rmdir/Cargo.toml
index b61def5ad..0894fa411 100644
--- a/src/uu/rmdir/Cargo.toml
+++ b/src/uu/rmdir/Cargo.toml
@@ -17,7 +17,7 @@ path = "src/rmdir.rs"
 [dependencies]
 clap = { version = "3.1", features = ["wrap_help", "cargo"] }
 uucore = { version=">=0.0.11", package="uucore", path="../../uucore" }
-libc = "0.2.124"
+libc = "0.2.125"
 
 [[bin]]
 name = "rmdir"
diff --git a/src/uu/sync/Cargo.toml b/src/uu/sync/Cargo.toml
index ece7a5930..f6e57391d 100644
--- a/src/uu/sync/Cargo.toml
+++ b/src/uu/sync/Cargo.toml
@@ -16,7 +16,7 @@ path = "src/sync.rs"
 
 [dependencies]
 clap = { version = "3.1", features = ["wrap_help", "cargo"] }
-libc = "0.2.124"
+libc = "0.2.125"
 uucore = { version=">=0.0.11", package="uucore", path="../../uucore", features=["wide"] }
 winapi = { version = "0.3", features = ["errhandlingapi", "fileapi", "handleapi", "std", "winbase", "winerror"] }
 
diff --git a/src/uu/tail/Cargo.toml b/src/uu/tail/Cargo.toml
index eebbf9606..7006ddb67 100644
--- a/src/uu/tail/Cargo.toml
+++ b/src/uu/tail/Cargo.toml
@@ -16,7 +16,7 @@ path = "src/tail.rs"
 
 [dependencies]
 clap = { version = "3.1", features = ["wrap_help", "cargo"] }
-libc = "0.2.124"
+libc = "0.2.125"
 uucore = { version=">=0.0.11", package="uucore", path="../../uucore", features=["ringbuffer", "lines"] }
 
 [target.'cfg(windows)'.dependencies]
diff --git a/src/uu/tee/Cargo.toml b/src/uu/tee/Cargo.toml
index d018ee4a7..07ee9e33b 100644
--- a/src/uu/tee/Cargo.toml
+++ b/src/uu/tee/Cargo.toml
@@ -16,8 +16,8 @@ path = "src/tee.rs"
 
 [dependencies]
 clap = { version = "3.1", features = ["wrap_help", "cargo"] }
-libc = "0.2.124"
-retain_mut = "=0.1.2" # ToDO: [2021-01-01; rivy; maint/MinSRV] ~ v0.1.5 uses const generics which aren't stabilized until rust v1.51.0
+libc = "0.2.125"
+retain_mut = "=0.1.7" # ToDO: [2021-01-01; rivy; maint/MinSRV] ~ v0.1.5 uses const generics which aren't stabilized until rust v1.51.0
 uucore = { version=">=0.0.11", package="uucore", path="../../uucore", features=["libc"] }
 
 [[bin]]
diff --git a/src/uu/test/Cargo.toml b/src/uu/test/Cargo.toml
index 6bd1cfc90..58f891541 100644
--- a/src/uu/test/Cargo.toml
+++ b/src/uu/test/Cargo.toml
@@ -16,7 +16,7 @@ path = "src/test.rs"
 
 [dependencies]
 clap = { version = "3.1", features = ["wrap_help", "cargo"] }
-libc = "0.2.124"
+libc = "0.2.125"
 uucore = { version=">=0.0.11", package="uucore", path="../../uucore" }
 
 [target.'cfg(target_os = "redox")'.dependencies]
diff --git a/src/uu/timeout/Cargo.toml b/src/uu/timeout/Cargo.toml
index e555cb1b7..d285c3214 100644
--- a/src/uu/timeout/Cargo.toml
+++ b/src/uu/timeout/Cargo.toml
@@ -16,7 +16,7 @@ path = "src/timeout.rs"
 
 [dependencies]
 clap = { version = "3.1", features = ["wrap_help", "cargo"] }
-libc = "0.2.124"
+libc = "0.2.125"
 nix = { version = "0.24.1", default-features = false, features = ["signal"] }
 uucore = { version=">=0.0.11", package="uucore", path="../../uucore", features=["process", "signals"] }
 
diff --git a/src/uu/tty/Cargo.toml b/src/uu/tty/Cargo.toml
index 2f3438558..da6446ab0 100644
--- a/src/uu/tty/Cargo.toml
+++ b/src/uu/tty/Cargo.toml
@@ -16,7 +16,7 @@ path = "src/tty.rs"
 
 [dependencies]
 clap = { version = "3.1", features = ["wrap_help", "cargo"] }
-libc = "0.2.124"
+libc = "0.2.125"
 atty = "0.2"
 uucore = { version=">=0.0.11", package="uucore", path="../../uucore", features=["fs"] }
 
diff --git a/src/uu/whoami/Cargo.toml b/src/uu/whoami/Cargo.toml
index 2655fe892..253e2ba1b 100644
--- a/src/uu/whoami/Cargo.toml
+++ b/src/uu/whoami/Cargo.toml
@@ -22,7 +22,7 @@ uucore = { version=">=0.0.11", package="uucore", path="../../uucore", features=[
 winapi = { version = "0.3", features = ["lmcons"] }
 
 [target.'cfg(unix)'.dependencies]
-libc = "0.2.124"
+libc = "0.2.125"
 
 [[bin]]
 name = "whoami"
diff --git a/src/uucore/Cargo.toml b/src/uucore/Cargo.toml
index c86a8cf07..7a350146e 100644
--- a/src/uucore/Cargo.toml
+++ b/src/uucore/Cargo.toml
@@ -31,7 +31,7 @@ time = { version="<= 0.3", optional=true, features = ["formatting", "local-offse
 data-encoding = { version="2.1", optional=true }
 data-encoding-macro = { version="0.1.12", optional=true }
 z85 = { version="3.0.5", optional=true }
-libc = { version="0.2.124", optional=true }
+libc = { version="0.2.125", optional=true }
 once_cell = "1.10.0"
 os_display = "0.1.3"
 
diff --git a/src/uucore/src/lib/features/tokenize/sub.rs b/src/uucore/src/lib/features/tokenize/sub.rs
index f8b5b5caf..216953a43 100644
--- a/src/uucore/src/lib/features/tokenize/sub.rs
+++ b/src/uucore/src/lib/features/tokenize/sub.rs
@@ -152,7 +152,11 @@ impl SubParser {
             if parser.min_width_is_asterisk {
                 CanAsterisk::Asterisk
             } else {
-                CanAsterisk::Fixed(parser.min_width_tmp.map(|x| x.parse::<isize>().unwrap()))
+                CanAsterisk::Fixed(
+                    parser
+                        .min_width_tmp
+                        .map(|x| x.parse::<isize>().unwrap_or(1)),
+                )
             },
             if parser.second_field_is_asterisk {
                 CanAsterisk::Asterisk
diff --git a/tests/by-util/test_dir.rs b/tests/by-util/test_dir.rs
index 3ec416bb2..8c586a628 100644
--- a/tests/by-util/test_dir.rs
+++ b/tests/by-util/test_dir.rs
@@ -31,7 +31,7 @@ fn test_default_output() {
     scene
         .ucmd()
         .succeeds()
-        .stdout_does_not_match(&Regex::new("[rwx][^some-file1]").unwrap());
+        .stdout_does_not_match(&Regex::new("[rwx-]{10}.*some-file1$").unwrap());
 }
 
 #[test]
@@ -51,5 +51,5 @@ fn test_long_output() {
         .ucmd()
         .arg("-l")
         .succeeds()
-        .stdout_matches(&Regex::new("[rwx][^some-file1]").unwrap());
+        .stdout_matches(&Regex::new("[rwx-]{10}.*some-file1$").unwrap());
 }
diff --git a/tests/by-util/test_mktemp.rs b/tests/by-util/test_mktemp.rs
index e824df061..c28efc37b 100644
--- a/tests/by-util/test_mktemp.rs
+++ b/tests/by-util/test_mktemp.rs
@@ -411,3 +411,74 @@ fn test_mktemp_directory_tmpdir() {
     result.no_stderr().stdout_contains("apt-key-gpghome.");
     assert!(PathBuf::from(result.stdout_str().trim()).is_dir());
 }
+
+/// Decide whether a string matches a given template.
+///
+/// In the template, the character `'X'` is treated as a wildcard,
+/// that is, it matches anything. All other characters in `template`
+/// and `s` must match exactly.
+///
+/// # Examples
+///
+/// ```rust,ignore
+/// # These all match.
+/// assert!(matches_template("abc", "abc"));
+/// assert!(matches_template("aXc", "abc"));
+/// assert!(matches_template("XXX", "abc"));
+///
+/// # None of these match
+/// assert!(matches_template("abc", "abcd"));
+/// assert!(matches_template("abc", "ab"));
+/// assert!(matches_template("aXc", "abd"));
+/// assert!(matches_template("XXX", "abcd"));
+/// ```
+///
+fn matches_template(template: &str, s: &str) -> bool {
+    if template.len() != s.len() {
+        return false;
+    }
+    for (a, b) in template.chars().zip(s.chars()) {
+        if !(a == 'X' || a == b) {
+            return false;
+        }
+    }
+    true
+}
+
+/// An assertion that uses [`matches_template`] and adds a helpful error message.
+macro_rules! assert_matches_template {
+    ($template:expr, $s:expr) => {{
+        assert!(
+            matches_template($template, $s),
+            "\"{}\" != \"{}\"",
+            $template,
+            $s
+        );
+    }};
+}
+
+/// Test that the file is created in the directory given by the template.
+#[test]
+fn test_respect_template() {
+    let (at, mut ucmd) = at_and_ucmd!();
+    let template = "XXX";
+    let result = ucmd.arg(template).succeeds();
+    let filename = result.no_stderr().stdout_str().trim_end();
+    assert_matches_template!(template, filename);
+    assert!(at.file_exists(filename));
+}
+
+/// Test that the file is created in the directory given by the template.
+#[test]
+fn test_respect_template_directory() {
+    let (at, mut ucmd) = at_and_ucmd!();
+    at.mkdir("d");
+    #[cfg(not(windows))]
+    let template = "d/XXX";
+    #[cfg(windows)]
+    let template = r"d\XXX";
+    let result = ucmd.arg(template).succeeds();
+    let filename = result.no_stderr().stdout_str().trim_end();
+    assert_matches_template!(template, filename);
+    assert!(at.file_exists(filename));
+}
diff --git a/tests/by-util/test_printf.rs b/tests/by-util/test_printf.rs
index d5be4cd17..77f64750c 100644
--- a/tests/by-util/test_printf.rs
+++ b/tests/by-util/test_printf.rs
@@ -446,6 +446,14 @@ fn sub_any_specifiers_after_period() {
         .stdout_only("3");
 }
 
+#[test]
+fn unspecified_left_justify_is_1_width() {
+    new_ucmd!()
+        .args(&["%-o"]) //spell-checker:disable-line
+        .succeeds()
+        .stdout_only("0");
+}
+
 #[test]
 fn sub_any_specifiers_after_second_param() {
     new_ucmd!()
diff --git a/tests/by-util/test_ptx.rs b/tests/by-util/test_ptx.rs
index c17d473f5..75c96e42e 100644
--- a/tests/by-util/test_ptx.rs
+++ b/tests/by-util/test_ptx.rs
@@ -71,3 +71,35 @@ fn gnu_ext_disabled_ignore_and_only_file() {
         .succeeds()
         .stdout_only_fixture("gnu_ext_disabled_ignore_and_only_file.expected");
 }
+
+#[test]
+fn gnu_ext_disabled_output_width_50() {
+    new_ucmd!()
+        .args(&["-G", "-w", "50", "input"])
+        .succeeds()
+        .stdout_only_fixture("gnu_ext_disabled_output_width_50.expected");
+}
+
+#[test]
+fn gnu_ext_disabled_output_width_70() {
+    new_ucmd!()
+        .args(&["-G", "-w", "70", "input"])
+        .succeeds()
+        .stdout_only_fixture("gnu_ext_disabled_output_width_70.expected");
+}
+
+#[test]
+fn gnu_ext_disabled_break_file() {
+    new_ucmd!()
+        .args(&["-G", "-b", "break_file", "input"])
+        .succeeds()
+        .stdout_only_fixture("gnu_ext_disabled_break_file.expected");
+}
+
+#[test]
+fn gnu_ext_disabled_empty_word_regexp_ignores_break_file() {
+    new_ucmd!()
+        .args(&["-G", "-b", "break_file", "-R", "-W", "", "input"])
+        .succeeds()
+        .stdout_only_fixture("gnu_ext_disabled_rightward_no_ref.expected");
+}
diff --git a/tests/by-util/test_vdir.rs b/tests/by-util/test_vdir.rs
index 01c540095..41bce1c40 100644
--- a/tests/by-util/test_vdir.rs
+++ b/tests/by-util/test_vdir.rs
@@ -31,7 +31,7 @@ fn test_default_output() {
     scene
         .ucmd()
         .succeeds()
-        .stdout_matches(&Regex::new("[rwx][^some-file1]").unwrap());
+        .stdout_matches(&Regex::new("[rwx-]{10}.*some-file1$").unwrap());
 }
 
 #[test]
@@ -51,5 +51,5 @@ fn test_column_output() {
         .ucmd()
         .arg("-C")
         .succeeds()
-        .stdout_does_not_match(&Regex::new("[rwx][^some-file1]").unwrap());
+        .stdout_does_not_match(&Regex::new("[rwx-]{10}.*some-file1$").unwrap());
 }
diff --git a/tests/fixtures/ptx/break_file b/tests/fixtures/ptx/break_file
new file mode 100644
index 000000000..499598c20
--- /dev/null
+++ b/tests/fixtures/ptx/break_file
@@ -0,0 +1 @@
+abc_e^-]\
diff --git a/tests/fixtures/ptx/gnu_ext_disabled_break_file.expected b/tests/fixtures/ptx/gnu_ext_disabled_break_file.expected
new file mode 100644
index 000000000..7ea13471d
--- /dev/null
+++ b/tests/fixtures/ptx/gnu_ext_disabled_break_file.expected
@@ -0,0 +1,42 @@
+.xx "" "" """quotes"", for roff" ""
+.xx "" "and some other like %a, b" "#, c$c" ""
+.xx "" "and some other like %a, b#, c" "$c" ""
+.xx "" "and some other like" "%a, b#, c$c" ""
+.xx "" "and some other like %a" ", b#, c$c" ""
+.xx "" """quotes""," "for roff" ""
+.xx "" "{brackets}" "for tex" ""
+.xx "" "" "hello world!" ""
+.xx "" "let's c" "heck special characters:" ""
+.xx "" "let's check special c" "haracters:" ""
+.xx "" "let's check spec" "ial characters:" ""
+.xx "" "let's chec" "k special characters:" ""
+.xx "" "{brac" "kets} for tex" ""
+.xx "" "oh, and bac" "k\slash" ""
+.xx "" "" "let's check special characters:" ""
+.xx "" "let's check specia" "l characters:" ""
+.xx "" "and some other" "like %a, b#, c$c" ""
+.xx "" "he" "llo world!" ""
+.xx "" "maybe a" "lso~or^" ""
+.xx "" "" "maybe also~or^" ""
+.xx "" "a" "nd some other like %a, b#, c$c" ""
+.xx "" "oh, a" "nd back\slash" ""
+.xx "" "" "oh, and back\slash" ""
+.xx "" "and some" "other like %a, b#, c$c" ""
+.xx "" "let's check special cha" "racters:" ""
+.xx "" "{b" "rackets} for tex" ""
+.xx "" "and some othe" "r like %a, b#, c$c" ""
+.xx "" """quotes"", for" "roff" ""
+.xx "" "let's check special characte" "rs:" ""
+.xx "" """quote" "s"", for roff" ""
+.xx "" "oh, and back\sla" "sh" ""
+.xx "" "oh, and back\" "slash" ""
+.xx "" "and" "some other like %a, b#, c$c" ""
+.xx "" "let's check" "special characters:" ""
+.xx "" "let's check special charac" "ters:" ""
+.xx "" "{brackets} for" "tex" ""
+.xx "" "le" "t's check special characters:" ""
+.xx "" "{bracke" "ts} for tex" ""
+.xx "" "hello" "world!" ""
+.xx "" "{brackets} for te" "x" ""
+.xx "" "ma" "ybe also~or^" ""
+.xx "" "" "{brackets} for tex" ""
diff --git a/tests/fixtures/ptx/gnu_ext_disabled_output_width_50.expected b/tests/fixtures/ptx/gnu_ext_disabled_output_width_50.expected
new file mode 100644
index 000000000..c71b0508c
--- /dev/null
+++ b/tests/fixtures/ptx/gnu_ext_disabled_output_width_50.expected
@@ -0,0 +1,24 @@
+.xx "" "" """quotes"", for roff" ""
+.xx "" "and some other like" "%a, b#, c$c" ""
+.xx "" "maybe" "also~or^" ""
+.xx "%a, b#, c$c" "" "and some other like" ""
+.xx "" "oh," "and back\slash" ""
+.xx "" "some other like %a," "b#, c$c" "and"
+.xx "" "oh, and" "back\slash" ""
+.xx "" "other like %a, b#," "c$c" "and some"
+.xx "" "let's check special" "characters:" ""
+.xx "characters:" "let's" "check special" ""
+.xx "" """quotes""," "for roff" ""
+.xx "" "{brackets}" "for tex" ""
+.xx "" "" "hello world!" ""
+.xx "characters:" "" "let's check special" ""
+.xx "" "and some other" "like %a, b#, c$c" ""
+.xx "" "" "maybe also~or^" ""
+.xx "" "" "oh, and back\slash" ""
+.xx "" "and some" "other like %a, b#, c$c" ""
+.xx "" """quotes"", for" "roff" ""
+.xx "b#, c$c" "and" "some other like %a," ""
+.xx "" "let's check" "special characters:" ""
+.xx "" "{brackets} for" "tex" ""
+.xx "" "hello" "world!" ""
+.xx "" "" "{brackets} for tex" ""
diff --git a/tests/fixtures/ptx/gnu_ext_disabled_output_width_70.expected b/tests/fixtures/ptx/gnu_ext_disabled_output_width_70.expected
new file mode 100644
index 000000000..3886e087d
--- /dev/null
+++ b/tests/fixtures/ptx/gnu_ext_disabled_output_width_70.expected
@@ -0,0 +1,24 @@
+.xx "" "" """quotes"", for roff" ""
+.xx "" "and some other like" "%a, b#, c$c" ""
+.xx "" "maybe" "also~or^" ""
+.xx "" "" "and some other like %a, b#, c$c" ""
+.xx "" "oh," "and back\slash" ""
+.xx "" "and some other like %a," "b#, c$c" ""
+.xx "" "oh, and" "back\slash" ""
+.xx "" "and some other like %a, b#," "c$c" ""
+.xx "" "let's check special" "characters:" ""
+.xx "" "let's" "check special characters:" ""
+.xx "" """quotes""," "for roff" ""
+.xx "" "{brackets}" "for tex" ""
+.xx "" "" "hello world!" ""
+.xx "" "" "let's check special characters:" ""
+.xx "" "and some other" "like %a, b#, c$c" ""
+.xx "" "" "maybe also~or^" ""
+.xx "" "" "oh, and back\slash" ""
+.xx "" "and some" "other like %a, b#, c$c" ""
+.xx "" """quotes"", for" "roff" ""
+.xx "" "and" "some other like %a, b#, c$c" ""
+.xx "" "let's check" "special characters:" ""
+.xx "" "{brackets} for" "tex" ""
+.xx "" "hello" "world!" ""
+.xx "" "" "{brackets} for tex" ""
diff --git a/util/build-gnu.sh b/util/build-gnu.sh
index 6f0ec32f7..83993fde9 100755
--- a/util/build-gnu.sh
+++ b/util/build-gnu.sh
@@ -62,14 +62,23 @@ for binary in $(./build-aux/gen-lists-of-programs.sh --list-progs); do
     }
 done
 
-./bootstrap
-./configure --quiet --disable-gcc-warnings
-#Add timeout to to protect against hangs
-sed -i 's|^"\$@|/usr/bin/timeout 600 "\$@|' build-aux/test-driver
-# Change the PATH in the Makefile to test the uutils coreutils instead of the GNU coreutils
-sed -i "s/^[[:blank:]]*PATH=.*/  PATH='${UU_BUILD_DIR//\//\\/}\$(PATH_SEPARATOR)'\"\$\$PATH\" \\\/" Makefile
-sed -i 's| tr | /usr/bin/tr |' tests/init.sh
-make -j "$(nproc)"
+if test -f gnu-built; then
+    echo "GNU build already found. Skip"
+    echo "'rm -f $(pwd)/gnu-built' to force the build"
+    echo "Note: the customization of the tests will still happen"
+    exit 0
+else
+    ./bootstrap
+    ./configure --quiet --disable-gcc-warnings
+    #Add timeout to to protect against hangs
+    sed -i 's|^"\$@|/usr/bin/timeout 600 "\$@|' build-aux/test-driver
+    # Change the PATH in the Makefile to test the uutils coreutils instead of the GNU coreutils
+    sed -i "s/^[[:blank:]]*PATH=.*/  PATH='${UU_BUILD_DIR//\//\\/}\$(PATH_SEPARATOR)'\"\$\$PATH\" \\\/" Makefile
+    sed -i 's| tr | /usr/bin/tr |' tests/init.sh
+    make -j "$(nproc)"
+    touch gnu-built
+fi
+
 # Handle generated factor tests
 t_first=00
 t_max=36