# to minimize the risk of accidentally using non-portable features.
# However, do this only for gnulib-tool itself, not for the code that
# gnulib-tool generates, since we don't want "sed --posix" to leak
-# into makefiles.
-if (alias) > /dev/null 2>&1 && echo | sed --posix -e d >/dev/null 2>&1; then
+# into makefiles. And do it only for sed versions 4.2 or newer,
+# because "sed --posix" is buggy in GNU sed 4.1.5, see
+# <http://lists.gnu.org/archive/html/bug-gnulib/2009-02/msg00225.html>.
+if (alias) > /dev/null 2>&1 \
+ && echo | sed --posix -e d >/dev/null 2>&1 \
+ && case `sed --version | sed -e 's/^[^0-9]*//' -e 1q` in \
+ [1-3]* | 4.[01]*) false;; \
+ *) true;; \
+ esac \
+ ; then
# Define sed as an alias.
# It is not always possible to use aliases. Aliases are guaranteed to work
# if the executing shell is bash and either it is invoked as /bin/sh or
# is a version >= 2.0, supporting shopt. This is the common case.
# Two other approaches (use of a variable $sed or of a function func_sed
# instead of an alias) require massive, fragile code changes.
- # An other approach (use of function sed) requires `which sed` - but 'which'
- # is hard to emulate, due to missing "test -x" on some platforms.
+ # An other approach (use of function sed) requires `which sed` - but
+ # 'which' is hard to emulate, due to missing "test -x" on some platforms.
if test -n "$BASH_VERSION"; then
shopt -s expand_aliases >/dev/null 2>&1
fi
if test -z "$makefile_name"; then
echo
echo "AM_CPPFLAGS ="
+ echo "AM_CFLAGS ="
fi
echo
if LC_ALL=C grep "^[a-zA-Z0-9_]*_${perhapsLT}LIBRARIES *+\{0,1\}= *$libname\\.$libext\$" allsnippets.tmp > /dev/null; then
echo "Updating $destdir/$dir$ignore (backup in $destdir/$dir${ignore}~)"
mv -f "$destdir/$dir$ignore" "$destdir/$dir$ignore"~
{ sed -e 's,/,\\/,g' -e 's,^,/^,' -e 's,$,\$/d,' < "$tmp"/ignore-removed
- if test -n "$anchor"; then sed -e 's,/,\\/,g' -e "s,^,/^${doubly_escaped_anchor}," -e 's,$,\$/d,' < "$tmp"/ignore-removed; fi
+ if test -n "$anchor"; then sed -e 's,/,\\/,g' -e "s,^,/^${doubly_escaped_anchor}," -e 's,$,$/d,' < "$tmp"/ignore-removed; fi
} > "$tmp"/sed-ignore-removed
{ cat "$destdir/$dir$ignore"~
sed -e "s|^|$anchor|" < "$tmp"/ignore-added