diff -ru CSSC-1.4.1.orig/configure CSSC-1.4.1/configure

--- CSSC-1.4.1.orig/configure	2019-05-07 13:44:57.000000000 +0200

+++ CSSC-1.4.1/configure	2021-04-08 14:11:56.935465623 +0200

@@ -19418,60 +19418,6 @@

 ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if you are using a broken version of glibc with a version of GCC (>=2.97) that doesn't like it" >&5

-$as_echo_n "checking if you are using a broken version of glibc with a version of GCC (>=2.97) that doesn't like it... " >&6; }

-cat confdefs.h - <<_ACEOF >conftest.$ac_ext

-/* end confdefs.h.  */

-

-#include <stdio.h>

-int x = 0;

-class foo {

-public:

-foo() { }

-void some_member_function(void) { };

-int printf(const char *fmt, ...);

-};

-

-int

-main ()

-{

-/* no function body*/

-  ;

-  return 0;

-}

-_ACEOF

-if ac_fn_cxx_try_compile "$LINENO"; then :

-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5

-$as_echo "no" >&6; }

-else

-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5

-$as_echo "yes" >&6; }

-

-oldCFLAGS="$CFLAGS"

-oldCXXFLAGS="$CXXFLAGS"

-if echo "$CFLAGS" | grep -e "-O" >/dev/null

-then

-	CFLAGS="-g"

-	CXXFLAGS="-g"

-

-echo

-echo WARNING It seems that you are using a version of GNU lilbc

-echo WARNING that has a broken printf macro in /usr/include/bits/stdio.h.

-echo WARNING I have changed CFLAGS and CXXFLAGS to turn optimisation off

-echo WARNING in order to work around the problem.

-echo WARNING

-echo WARNING Other possible workarounds would be to use GCC 2.96 or

-echo WARNING earlier, or a version of glibc which does not have this

-echo WARNING bug.

-echo WARNING

-echo WARNING CFLAGS   has been changed from "$oldCFLAGS"   to "$CFLAGS"

-echo WARNING CXXFLAGS has been changed from "$oldCXXFLAGS" to "$CXXFLAGS"

-echo

-

-fi

-

-fi

-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext

 ac_ext=c

 ac_cpp='$CPP $CPPFLAGS'