From d55200841514da279d771cfe865b3cf4e281ba21 Mon Sep 17 00:00:00 2001
From: gambas <g4mba5@gmail.com>
Date: Thu, 10 May 2018 09:13:15 +0200
Subject: [PATCH] Add a flag for enabling link time optimization, and disable
 it by default.

[CONFIGURATION]
* NEW: Add a flag for enabling link time optimization, and disable it by default.
---
 acinclude.m4 | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/acinclude.m4 b/acinclude.m4
index ee2b32bb0..f654e0f26 100644
--- a/acinclude.m4
+++ b/acinclude.m4
@@ -330,10 +330,23 @@ AC_DEFUN([GB_INIT],
       have_gcc_lto=yes
     ])
   
+  AC_ARG_ENABLE(
+    lto,
+    [  --enable-lto                   enable link time optimization (default: no)],
+    gambas_lto=$enableval,
+    gambas_lto=no
+  )
+  
+  if test "$gambas_lto" = "no"; then
+    have_gcc_lto=no;
+    GB_CFLAGS_LTO="";
+  fi
+  
   if test "$have_gcc_lto" = "yes"; then
     AC_DEFINE(HAVE_GCC_LTO, 1, [Whether gcc supports -flto])
   fi
   
+  
   dnl ---- Debug flags
 
   if test "$gambas_debug" = "yes"; then