Revert "Determine whether -E/-r option selects extended regexp"

This reverts commit 7bcf18bfab84374d3305c7a088f95ac1219ddf93.

1 files changed, 9 insertions, 21 deletions

diff --git a/configure.ac b/configure.ac
index 439cdcab..11c5a8e8 100644
--- a/configure.ac
+++ b/configure.ac
@@ -171,27 +171,15 @@ AS_IF([test "$EGREP" != "$GREP -E"],
 ACX_WITH_DEPRECATED([sed], [SED])
 AC_ARG_VAR([INSTALL], [Specify the full path to GNU sed])
 AC_PROG_SED
-AC_CACHE_CHECK([whether $SED understands -i -e],
-    [acx_cv_sed_i_e],
-    [echo foo > .ct-ng.sed.test
-     ${SED} -i -e 's/foo/bar/' .ct-ng.sed.test >/dev/null 2>&1
-     rc=$?
-     content=`cat .ct-ng.sed.test`
-     rm -f .ct-ng.sed.test
-     AS_IF([test "$rc:$content" = "0:bar"],
-           [acx_cv_sed_i_e=yes],
-           [AC_MSG_ERROR([sed does not accept -i -e])])])
-AC_CACHE_CHECK([which $SED option selects extended regexp],
-    [acx_cv_sed_r],
-    [opt_r=`echo foo | $SED -r -e 's/f(o)o/b\1ar/' 2>/dev/null`
-     opt_E=`echo foo | $SED -E -e 's/f(o)o/b\1ar/' 2>/dev/null`
-     AS_IF([test "$opt_r" = "boar"],
-           [acx_cv_sed_r=-r],
-           [test "$opt_E" = "boar"],
-           [acx_cv_sed_r=-E],
-           [AC_MSG_ERROR([neither -r nor -E enables extended regexp])])])
-SED_R="$SED $acx_cv_sed_r"
-AC_SUBST([SED_R])
+AC_MSG_CHECKING([whether sed understands -r -i -e])
+echo foo > .ct-ng.sed.test
+${SED} -r -i -e 's/f(o)o/b\1ar/' .ct-ng.sed.test >/dev/null 2>&1
+rc=$?
+content=`cat .ct-ng.sed.test`
+rm -f .ct-ng.sed.test
+AS_IF([test "$rc:$content" = "0:boar"],
+    [AC_MSG_RESULT([yes])],
+    [AC_MSG_ERROR([sed does not accept -r -i -e])])
 
 AC_PROG_LN_S