build: rely on gnulib to determine printf routines are safe

gnulib now only checks that the printf routines never crash,
which is all coreutils currrently requires, and so we revert
commit v8.23-81-gf57bfbb to let gnulib decide whether to replace
the system printf routines.

diff --git a/configure.ac b/configure.ac
index cac9ab2c59b3c87f39d83f238efedb1cde20691d..e6086111d5853a9b963f27b984e7ecbbafbd0550 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -67,12 +67,6 @@ cu_have_perl=yes
 case $PERL in *"/missing "*) cu_have_perl=no;; esac
 AM_CONDITIONAL([HAVE_PERL], [test $cu_have_perl = yes])
 
-# Disable the checks for handling certain invalid long double values
-# since this results in always replacing the printf() implementation
-# (see https://sourceware.org/bugzilla/show_bug.cgi?id=17661) and
-# od (ftoastr) doesn't use the replacement anyway.
-m4_divert_text([INIT_PREPARE], [gl_printf_safe=''])
-
 # gl_GCC_VERSION_IFELSE([major], [minor], [run-if-found], [run-if-not-found])
 # ------------------------------------------------
 # If $CPP is gcc-MAJOR.MINOR or newer, then run RUN-IF-FOUND.