--- configure.ac.orig	2024-05-05 19:06:59 UTC
+++ configure.ac
@@ -19,7 +19,7 @@ if test "$GCC" = "yes" && ! expr "$CC" : clang >/dev/n
 AC_PROG_SED
 
 if test "$GCC" = "yes" && ! expr "$CC" : clang >/dev/null 2>&1;then
-	CFLAGS="$CFLAGS -Wall -Wno-strict-aliasing -Wextra -Wno-unused-parameter -Wno-sign-compare -Wno-missing-field-initializers -Wno-implicit-fallthrough -Wno-stringop-truncation"
+	CFLAGS="$CFLAGS -Wall -Wno-strict-aliasing -Wextra -Wno-unused-parameter -Wno-sign-compare -Wno-missing-field-initializers"
 fi
 
 AC_CHECK_PROGS([IPCALC], [ipcalc ipcalc-ng], [:])
@@ -231,7 +231,7 @@ have_readline=no
 fi
 
 have_readline=no
-AC_LIB_HAVE_LINKFLAGS(readline,, [
+AC_LIB_HAVE_LINKFLAGS(readline,ncurses, [
 #include <stdio.h>
 #include <readline/readline.h>], [rl_replace_line(0,0);])
   if test x$ac_cv_libreadline = xyes; then
@@ -675,8 +675,6 @@ AM_CONDITIONAL(ENABLE_OIDC_AUTH_TESTS, test "x$enable_
 
 AM_CONDITIONAL(ENABLE_OIDC_AUTH,  test "x$enable_oidc_auth" = xyes)
 AM_CONDITIONAL(ENABLE_OIDC_AUTH_TESTS, test "x$enable_oidc_auth" = xyes)
-
-AC_CHECK_FILE(/proc/self/exe, AC_DEFINE([PROC_FS_SUPPORTED],[1], [procfs supported]), [])
 
 uid=$(id -u)
 gid=$(id -g)