$NetBSD: patch-configure,v 1.3 2018/05/15 08:35:50 adam Exp $

Do not use -O3, -g3, nor -funroll-loops; prefer PkgSrc provided compiler flags.

--- configure.orig	2018-05-08 19:16:45.000000000 +0000
+++ configure
@@ -4024,7 +4024,7 @@ fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -g3" >&5
 $as_echo_n "checking whether compiler supports -g3... " >&6; }
 T_CONFIGURE_CFLAGS="${CONFIGURE_CFLAGS}"
-T_APPEND_V=-g3
+T_APPEND_V=
   if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${T_APPEND_V}" = "x" ; then
   CONFIGURE_CFLAGS="${CONFIGURE_CFLAGS}${T_APPEND_V}"
 else
@@ -5936,7 +5936,7 @@ fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -g3" >&5
 $as_echo_n "checking whether compiler supports -g3... " >&6; }
 T_CONFIGURE_CXXFLAGS="${CONFIGURE_CXXFLAGS}"
-T_APPEND_V=-g3
+T_APPEND_V=
   if test "x${CONFIGURE_CXXFLAGS}" = "x" -o "x${T_APPEND_V}" = "x" ; then
   CONFIGURE_CXXFLAGS="${CONFIGURE_CXXFLAGS}${T_APPEND_V}"
 else
@@ -8961,7 +8961,7 @@ if test "x$enable_debug" = "x0" ; then
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -O3" >&5
 $as_echo_n "checking whether compiler supports -O3... " >&6; }
 T_CONFIGURE_CFLAGS="${CONFIGURE_CFLAGS}"
-T_APPEND_V=-O3
+T_APPEND_V=
   if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${T_APPEND_V}" = "x" ; then
   CONFIGURE_CFLAGS="${CONFIGURE_CFLAGS}${T_APPEND_V}"
 else
@@ -9012,7 +9012,7 @@ fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -O3" >&5
 $as_echo_n "checking whether compiler supports -O3... " >&6; }
 T_CONFIGURE_CXXFLAGS="${CONFIGURE_CXXFLAGS}"
-T_APPEND_V=-O3
+T_APPEND_V=
   if test "x${CONFIGURE_CXXFLAGS}" = "x" -o "x${T_APPEND_V}" = "x" ; then
   CONFIGURE_CXXFLAGS="${CONFIGURE_CXXFLAGS}${T_APPEND_V}"
 else
@@ -9075,7 +9075,7 @@ fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -funroll-loops" >&5
 $as_echo_n "checking whether compiler supports -funroll-loops... " >&6; }
 T_CONFIGURE_CFLAGS="${CONFIGURE_CFLAGS}"
-T_APPEND_V=-funroll-loops
+T_APPEND_V=
   if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${T_APPEND_V}" = "x" ; then
   CONFIGURE_CFLAGS="${CONFIGURE_CFLAGS}${T_APPEND_V}"
 else