#! /bin/sh
# Print a version string.
-scriptversion=2014-12-08.12; # UTC
+scriptversion=2017-01-09.19; # UTC
# Bootstrap this package from checked-out sources.
local_gl_dir=gl
-# Honour $PERL, but work even if there is none
+# Honor $PERL, but work even if there is none.
PERL="${PERL-perl}"
me=$0
done
}
-get_version() {
- app=$1
+get_version_sed='
+# Move version to start of line.
+s/.*[v ]\([0-9]\)/\1/
- $app --version >/dev/null 2>&1 || { $app --version; return 1; }
+# Skip lines that do not start with version.
+/^[0-9]/!d
- $app --version 2>&1 |
- sed -n '# Move version to start of line.
- s/.*[v ]\([0-9]\)/\1/
+# Remove characters after the version.
+s/[^.a-z0-9-].*//
- # Skip lines that do not start with version.
- /^[0-9]/!d
+# The first component must be digits only.
+s/^\([0-9]*\)[a-z-].*/\1/
- # Remove characters after the version.
- s/[^.a-z0-9-].*//
+#the following essentially does s/5.005/5.5/
+s/\.0*\([1-9]\)/.\1/g
+p
+q'
- # The first component must be digits only.
- s/^\([0-9]*\)[a-z-].*/\1/
+get_version() {
+ app=$1
+
+ $app --version >/dev/null 2>&1 || { $app --version; return 1; }
- #the following essentially does s/5.005/5.5/
- s/\.0*\([1-9]\)/.\1/g
- p
- q'
+ $app --version 2>&1 | sed -n "$get_version_sed"
}
check_versions() {
# Leave any existing symlink alone, if it already points to the source,
# so that broken build tools that care about symlink times
# aren't confused into doing unnecessary builds. Conversely, if the
- # existing symlink's time stamp is older than the source, make it afresh,
+ # existing symlink's timestamp is older than the source, make it afresh,
# so that broken tools aren't confused into skipping needed builds. See
# <http://lists.gnu.org/archive/html/bug-gnulib/2011-05/msg00326.html>.
test -h "$dst" &&
# eval: (add-hook 'write-file-hooks 'time-stamp)
# time-stamp-start: "scriptversion="
# time-stamp-format: "%:y-%02m-%02d.%02H"
-# time-stamp-time-zone: "UTC"
+# time-stamp-time-zone: "UTC0"
# time-stamp-end: "; # UTC"
# End:
# Running a single test, with verbose output:
# $ make check TESTS=test-foo.sh VERBOSE=yes
#
+# Running a single test, keeping the temporary directory:
+# $ make check TESTS=test-foo.sh KEEP=yes
+#
# Running a single test, with single-stepping:
# 1. Go into a sub-shell:
# $ bash
fi
# We require $(...) support unconditionally.
+# We require non-surprising "local" semantics (this eliminates dash).
+# This takes the admittedly draconian step of eliminating dash, because the
+# assignment tab=$(printf '\t') works fine, yet preceding it with "local "
+# transforms it into an assignment that sets the variable to the empty string.
+# That is too counter-intuitive, and can lead to subtle run-time malfunction.
+# The example below is less subtle in that with dash, it evokes the run-time
+# exception "dash: 1: local: 1: bad variable name".
# We require a few additional shell features only when $EXEEXT is nonempty,
# in order to support automatic $EXEEXT emulation:
# - hyphen-containing alias names
gl_shell_test_script_='
test $(echo y) = y || exit 1
f_local_() { local v=1; }; f_local_ || exit 1
+f_dash_local_fail_() { local t=$(printf " 1"); }; f_dash_local_fail_
score_=10
if test "$VERBOSE" = yes; then
test -n "$( (exec 3>&1; set -x; P=1 true 2>&3) 2> /dev/null)" && score_=9
return 2
}
-if diff_out_=`exec 2>/dev/null; diff -u "$0" "$0" < /dev/null` \
- && diff -u Makefile "$0" 2>/dev/null | grep '^[+]#!' >/dev/null; then
- # diff accepts the -u option and does not (like AIX 7 'diff') produce an
- # extra space on column 1 of every content line.
- if test -z "$diff_out_"; then
- compare_ () { diff -u "$@"; }
- else
- compare_ ()
- {
- if diff -u "$@" > diff.out; then
- # No differences were found, but Solaris 'diff' produces output
- # "No differences encountered". Hide this output.
- rm -f diff.out
- true
- else
- cat diff.out
- rm -f diff.out
- false
- fi
- }
- fi
-elif
- for diff_opt_ in -U3 -c '' no; do
- test "$diff_opt_" = no && break
- diff_out_=`exec 2>/dev/null; diff $diff_opt_ "$0" "$0" </dev/null` && break
- done
- test "$diff_opt_" != no
-then
+for diff_opt_ in -u -U3 -c '' no; do
+ test "$diff_opt_" != no &&
+ diff_out_=`exec 2>/dev/null; diff $diff_opt_ "$0" "$0" < /dev/null` &&
+ break
+done
+if test "$diff_opt_" != no; then
if test -z "$diff_out_"; then
compare_ () { diff $diff_opt_ "$@"; }
else
compare_ ()
{
- if diff $diff_opt_ "$@" > diff.out; then
- # No differences were found, but AIX and HP-UX 'diff' produce output
- # "No differences encountered" or "There are no differences between the
- # files.". Hide this output.
- rm -f diff.out
- true
- else
- cat diff.out
- rm -f diff.out
- false
- fi
+ # If no differences were found, AIX and HP-UX 'diff' produce output
+ # like "No differences encountered". Hide this output.
+ diff $diff_opt_ "$@" > diff.out
+ diff_status_=$?
+ test $diff_status_ -eq 0 || cat diff.out || diff_status_=2
+ rm -f diff.out || diff_status_=2
+ return $diff_status_
}
fi
elif cmp -s /dev/null /dev/null 2>/dev/null; then
{
__st=$?
cleanup_
- # cd out of the directory we're about to remove
- cd "$initial_cwd_" || cd / || cd /tmp
- chmod -R u+rwx "$test_dir_"
- # If removal fails and exit status was to be 0, then change it to 1.
- rm -rf "$test_dir_" || { test $__st = 0 && __st=1; }
+ if test "$KEEP" = yes; then
+ echo "Not removing temporary directory $test_dir_"
+ else
+ # cd out of the directory we're about to remove
+ cd "$initial_cwd_" || cd / || cd /tmp
+ chmod -R u+rwx "$test_dir_"
+ # If removal fails and exit status was to be 0, then change it to 1.
+ rm -rf "$test_dir_" || { test $__st = 0 && __st=1; }
+ fi
exit $__st
}
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