From 2efd38e8c70f00ca6bbc1eb5199aa507d45436cf Mon Sep 17 00:00:00 2001
From: Rich Felker <dalias@aerifal.cx>
Date: Wed, 4 Nov 2015 21:39:13 -0500
Subject: have configure check/add linker options to reduce size lost to
 padding

based on patch by Denys Vlasenko. sorting sections and common data
symbols by alignment acts as an approximation for optimal packing,
which the linker does not actually support.
---
 configure | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'configure')

diff --git a/configure b/configure
index 1e5c4b32..d04c860a 100755
--- a/configure
+++ b/configure
@@ -515,6 +515,12 @@ CFLAGS_AUTO="$CFLAGS_AUTO -include vis.h"
 CFLAGS_AUTO="${CFLAGS_AUTO# }"
 fi
 
+# Reduce space lost to padding for alignment purposes by sorting data
+# objects according to their alignment reqirements. This approximates
+# optimal packing.
+tryldflag LDFLAGS_AUTO -Wl,--sort-section,alignment
+tryldflag LDFLAGS_AUTO -Wl,--sort-common
+
 # Some patched GCC builds have these defaults messed up...
 tryldflag LDFLAGS_AUTO -Wl,--hash-style=both
 
-- 
cgit v1.2.1