test-echo.sh

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Date : 2025-09-10T23:22:53

Remove support for IRIX.

* all-modules: Update comments.
* build-aux/install-reloc: Likewise.
* build-aux/reloc-ldflags: Likewise.
* gnulib-tool: Likewise.
* gnulib-tool.py: Likewise.
* gnulib-tool.sh: Likewise.
* lib/aligned-malloc.h: Likewise.
* lib/boot-time.c: Likewise.
* lib/c32is-impl.h: Likewise.
* lib/c32srtombs-state.c: Likewise.
* lib/c32to-impl.h: Likewise.
* lib/c32width.c: Likewise.
* lib/errno.in.h: Likewise.
* lib/euidaccess.c: Likewise.
* lib/fbufmode.c: Likewise.
* lib/fenv-except-state-get.c: Likewise.
* lib/fenv-except-state-set.c: Likewise.
* lib/fenv-except-tracking-clear.c: Likewise.
* lib/fenv-except-tracking-set.c: Likewise.
* lib/fenv-except-tracking-test.c: Likewise.
* lib/fenv-except-trapping.c: Likewise.
* lib/fenv-round.c: Likewise.
* lib/fflush.c: Likewise.
* lib/fileblocks.c: Likewise.
* lib/forkpty.c: Likewise.
* lib/fpending.c: Likewise.
* lib/fpurge.c: Likewise.
* lib/freadable.c: Likewise.
* lib/freadahead.c: Likewise.
* lib/freading.c: Likewise.
* lib/freadptr.c: Likewise.
* lib/freadseek.c: Likewise.
* lib/fseeko.c: Likewise.
* lib/fseterr.c: Likewise.
* lib/fsusage.c: Likewise.
* lib/fwritable.c: Likewise.
* lib/fwriting.c: Likewise.
* lib/getdomainname.c: Likewise.
* lib/idpriv-drop.c: Likewise.
* lib/idpriv-droptemp.c: Likewise.
* lib/limits.in.h: Likewise.
* lib/mbrtoc16.c: Likewise.
* lib/mbrtoc32.c: Likewise.
* lib/mbsrtoc32s-state.c: Likewise.
* lib/mbsrtowcs-state.c: Likewise.
* lib/mbtowc-lock.h: Likewise.
* lib/minmax.h: Likewise.
* lib/netdb.in.h: Likewise.
* lib/pipe-filter-ii.c: Likewise.
* lib/posix_openpt.c: Likewise.
* lib/ptsname_r.c: Likewise.
* lib/readutmp.c: Likewise.
* lib/readutmp.h: Likewise.
* lib/resource-ext.h: Likewise.
* lib/safe-read.h: Likewise.
* lib/safe-write.h: Likewise.
* lib/save-cwd.c: Likewise.
* lib/stdbool.in.h: Likewise.
* lib/striconv.c: Likewise.
* lib/striconveh.c: Likewise.
* lib/termcap.h: Likewise.
* lib/terminfo.h: Likewise.
* lib/unistd.in.h: Likewise.
* lib/vasnprintf.c: Likewise.
* lib/wcrtomb.c: Likewise.
* lib/wcsrtombs-state.c: Likewise.
* m4/fenv-environment.m4: Likewise.
* m4/fenv-exceptions-state.m4: Likewise.
* m4/fenv-exceptions-tracking.m4: Likewise.
* m4/fenv-rounding.m4: Likewise.
* m4/fmod.m4: Likewise.
* m4/getdomainname.m4: Likewise.
* m4/getloadavg.m4: Likewise.
* m4/getopt.m4: Likewise.
* m4/hypot.m4: Likewise.
* m4/hypotf.m4: Likewise.
* m4/hypotl.m4: Likewise.
* m4/iconv.m4: Likewise.
* m4/intl-thread-locale.m4: Likewise.
* m4/largefile.m4: Likewise.
* m4/libdl.m4: Likewise.
* m4/locale-ja.m4: Likewise.
* m4/locale_h.m4: Likewise.
* m4/log.m4: Likewise.
* m4/log10.m4: Likewise.
* m4/log10f.m4: Likewise.
* m4/logf.m4: Likewise.
* m4/modf.m4: Likewise.
* m4/modff.m4: Likewise.
* m4/modfl.m4: Likewise.
* m4/pthread-rwlock.m4: Likewise.
* m4/semaphore.m4: Likewise.
* m4/socklen.m4: Likewise.
* m4/stdint.m4: Likewise.
* m4/strtod.m4: Likewise.
* m4/strtof.m4: Likewise.
* m4/strtold.m4: Likewise.
* modules/sigsegv: Likewise.
* posix-modules: Likewise.
* pygnulib/GLImport.py: Likewise.
* tests/init.sh: Likewise.
* tests/test-echo.sh: Likewise.
* tests/test-isatty.c: Likewise.
* tests/test-math-h.c: Likewise.
* tests/test-nonblocking-pipe.h: Likewise.
* tests/test-nonblocking-socket.h: Likewise.
* tests/test-strtod.h: Likewise.
* tests/test-strtof.h: Likewise.
* tests/test-strtold.h: Likewise.
* tests/test-vasnprintf.c: Likewise.
* tests/test-vasnwprintf.c: Likewise.

Download

tests/test-echo.sh

#! /bin/sh

# func_exit STATUS
# exit with status
func_exit ()
{
  (exit $1); exit $1
}

# func_fatal_error message
# outputs to stderr a fatal error message, and terminates the program.
func_fatal_error ()
{
  echo "test-echo.sh: *** $1" 1>&2
  echo "test-echo.sh: *** Stop." 1>&2
  func_exit 1
}

# Ensure an 'echo' command that does not interpret backslashes.
# Test cases:
#   echo '\n' | wc -l                 prints 1 when OK, 2 when KO
#   echo '\t' | grep t > /dev/null    has return code 0 when OK, 1 when KO
# This problem is a weird heritage from SVR4. BSD got it right (except that
# BSD echo interprets '-n' as an option, which is also not desirable).
# Nowadays the problem occurs in 4 situations:
# - in bash, when the shell option xpg_echo is set (bash >= 2.04)
#            or when it was built with --enable-usg-echo-default (bash >= 2.0)
#            or when it was built with DEFAULT_ECHO_TO_USG (bash < 2.0),
# - in zsh, when sh-emulation is not set,
# - in ksh (e.g. AIX /bin/sh and Solaris /usr/xpg4/bin/sh are ksh instances,
#           and HP-UX /bin/sh behaves similarly),
# - in Solaris /bin/sh.
# We try the following workarounds:
# - for all: respawn using $CONFIG_SHELL if that is set and works.
# - for bash >= 2.04: unset the shell option xpg_echo.
# - for bash >= 2.0: define echo to a function that uses the printf built-in.
# - for bash < 2.0: define echo to a function that uses cat of a here document.
# - for zsh: turn sh-emulation on.
# - for ksh: alias echo to 'print -r'.
# - for ksh: alias echo to a function that uses cat of a here document.
# - for Solaris /bin/sh: respawn using /bin/ksh and rely on the ksh workaround.
# - otherwise: respawn using /bin/sh and rely on the workarounds.
# When respawning, we pass --no-reexec as first argument, so as to avoid
# turning this script into a fork bomb in unlucky situations.
have_echo=
if echo '\t' | grep t > /dev/null; then
  have_echo=yes # Lucky!
fi
# Try the workarounds.
# Respawn using $CONFIG_SHELL if that is set and works.
if test -z "$have_echo" \
   && test "X$1" != "X--no-reexec" \
   && test -n "$CONFIG_SHELL" \
   && test -f "$CONFIG_SHELL" \
   && $CONFIG_SHELL -c 'echo '\t' | grep t > /dev/null'; then
  exec $CONFIG_SHELL "$0" --no-reexec "$@"
  exit 127
fi
# For bash >= 2.04: unset the shell option xpg_echo.
if test -z "$have_echo" \
   && test -n "$BASH_VERSION" \
   && (shopt -o xpg_echo; echo '\t' | grep t > /dev/null) 2>/dev/null; then
  shopt -o xpg_echo
  have_echo=yes
fi
# For bash >= 2.0: define echo to a function that uses the printf built-in.
# For bash < 2.0: define echo to a function that uses cat of a here document.
# (There is no win in using 'printf' over 'cat' if it is not a shell built-in.)
if test -z "$have_echo" \
   && test -n "$BASH_VERSION"; then \
  if type printf 2>/dev/null | grep / > /dev/null; then
    # 'printf' is not a shell built-in.
echo ()
{
cat <<EOF
$*
EOF
}
  else
    # 'printf' is a shell built-in.
echo ()
{
  printf '%s\n' "$*"
}
  fi
  if echo '\t' | grep t > /dev/null; then
    have_echo=yes
  fi
fi
# For zsh: turn sh-emulation on.
if test -z "$have_echo" \
   && test -n "$ZSH_VERSION" \
   && (emulate sh) >/dev/null 2>&1; then
  emulate sh
fi
# For ksh: alias echo to 'print -r'.
if test -z "$have_echo" \
   && (type print) >/dev/null 2>&1; then
  # A 'print' command exists.
  if type print 2>/dev/null | grep / > /dev/null; then
    :
  else
    # 'print' is a shell built-in.
    if (print -r '\told' | grep told > /dev/null) 2>/dev/null; then
      # 'print' is the ksh shell built-in.
      alias echo='print -r'
    fi
  fi
fi
if test -z "$have_echo" \
   && echo '\t' | grep t > /dev/null; then
  have_echo=yes
fi
# For ksh: alias echo to a function that uses cat of a here document.
# The ksh manual page says:
#   "Aliasing is performed when scripts are read, not while they are executed.
#    Therefore, for an alias to take effect, the alias definition command has
#    to be executed before the command which references the alias is read."
# Because of this, we have to play strange tricks with have_echo, to ensure
# that the top-level statement containing the test starts after the 'alias'
# command.
if test -z "$have_echo"; then
bsd_echo ()
{
cat <<EOF
$*
EOF
}
alias echo=bsd_echo 2>/dev/null
fi
if test -z "$have_echo" \
   && echo '\t' | grep t > /dev/null; then
  have_echo=yes
fi
if test -z "$have_echo"; then
  unalias echo 2>/dev/null
fi
# For Solaris /bin/sh: respawn using /bin/ksh.
if test -z "$have_echo" \
   && test "X$1" != "X--no-reexec" \
   && test -f /bin/ksh; then
  exec /bin/ksh "$0" --no-reexec "$@"
  exit 127
fi
# Otherwise: respawn using /bin/sh.
if test -z "$have_echo" \
   && test "X$1" != "X--no-reexec" \
   && test -f /bin/sh; then
  exec /bin/sh "$0" --no-reexec "$@"
  exit 127
fi
if test -z "$have_echo"; then
  func_fatal_error "Shell does not support 'echo' correctly. Please install GNU bash and set the environment variable CONFIG_SHELL to point to it."
fi
if echo '\t' | grep t > /dev/null; then
  : # Works fine now.
else
  func_fatal_error "Shell does not support 'echo' correctly. Workaround does not work. Please report this as a bug to bug-gnulib@gnu.org."
fi
if test "X$1" = "X--no-reexec"; then
  shift
fi

# This command determines the exit code.
echo '\t' | grep t > /dev/null

Download

kc3-lang/gnulib/tests/test-echo.sh

Commit

tests/test-echo.sh