diff --git a/src/modules/rlm_python/configure b/src/modules/rlm_python/configure
index 91820d6960b5..142f5433e384 100755
--- a/src/modules/rlm_python/configure
+++ b/src/modules/rlm_python/configure
@@ -2783,7 +2783,7 @@ $as_echo "$as_me: ${PYTHON_CONFIG_BIN}'s cflags were \"${python_cflags}\"" >&6;}
 		s/-isysroot[ =]\{0,1\}[^-]*//g;\
 		s/-O[[:digit:]][[:blank:]]*//g;\
 		s/-g[[:digit:]]*[[:blank:]]*//g;\
-		s/-Werror\([ =]\{0,1\}[^-]*\)\{0,1\}//g;\
+		s/-Werror\([ =]\{0,1\}[^ ]*\)\{0,1\}//g;\
 		s/-DNDEBUG[[:blank:]]*//g'`
 	{ $as_echo "$as_me:${as_lineno-$LINENO}: Sanitized cflags were \"${mod_cflags}\"" >&5
 $as_echo "$as_me: Sanitized cflags were \"${mod_cflags}\"" >&6;}
@@ -2819,6 +2819,10 @@ fi
 
 
 
+
+unset ac_cv_env_LIBS_set
+unset ac_cv_env_LIBS_value
+
 ac_config_files="$ac_config_files all.mk"
 
 cat >confcache <<\_ACEOF
@@ -3976,3 +3980,4 @@ if test -n "$ac_unrecognized_opts" && test "$enable_option_checking" != no; then
 $as_echo "$as_me: WARNING: unrecognized options: $ac_unrecognized_opts" >&2;}
 fi
 
+
diff --git a/src/modules/rlm_python/configure.ac b/src/modules/rlm_python/configure.ac
index 59ec6ceaf50a..1cfd8bd04d36 100644
--- a/src/modules/rlm_python/configure.ac
+++ b/src/modules/rlm_python/configure.ac
@@ -46,7 +46,7 @@ if test x$with_[]modname != xno; then
 		s/-isysroot[[ =]]\{0,1\}[[^-]]*//g;\
 		s/-O[[[:digit:]]][[[:blank:]]]*//g;\
 		s/-g[[[:digit:]]]*[[[:blank:]]]*//g;\
-		s/-Werror\([[ =]]\{0,1\}[[^-]]*\)\{0,1\}//g;\
+		s/-Werror\([[ =]]\{0,1\}[[^ ]]*\)\{0,1\}//g;\
 		s/-DNDEBUG[[[:blank:]]]*//g'`
 	AC_MSG_NOTICE([Sanitized cflags were \"${mod_cflags}\"])