From 29e8e625f131dbb208edb8992e17a4fda96897ed Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=C5=81ukasz=20Magiera?= <magik6k@gmail.com>
Date: Wed, 2 Mar 2016 22:56:38 +0100
Subject: [PATCH] Optimize linked binary size a bit (by half)

---
 Makefile                | 4 ++--
 scripts/dependencies.sh | 6 +++---
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/Makefile b/Makefile
index caf2463..8637ed4 100644
--- a/Makefile
+++ b/Makefile
@@ -4,8 +4,8 @@
 PREFIX?=x86_64-linux-musl
 
 CC = $(PREFIX)-gcc
-CFLAGS?=-O2 -std=c99 -DLUA_COMPAT_MODULE
-LDFLAGS+= -static -Ldependencies/lib-$(PREFIX)
+CFLAGS?=-O2 -std=c99 -DLUA_COMPAT_MODULE -fdata-sections -ffunction-sections
+LDFLAGS+= -O2 -Wl,--gc-sections -static -Ldependencies/lib-$(PREFIX)
 
 # Project specific stuff
 BUILD = bin/
diff --git a/scripts/dependencies.sh b/scripts/dependencies.sh
index 198ea52..bcdff78 100755
--- a/scripts/dependencies.sh
+++ b/scripts/dependencies.sh
@@ -59,7 +59,7 @@ if [ $2 = "libressl" ] || [ $# -lt 2 ]; then
   git clone https://github.com/libressl-portable/portable.git libressl
   cd libressl
   ./autogen.sh
-  ./configure --host=$TOOL
+  CFLAGS="-fdata-sections -ffunction-sections" ./configure --host=$TOOL
   make clean
   make -j8
 
@@ -86,7 +86,7 @@ if [ $2 = "libevent" ] || [ $# -lt 2 ]; then
   cd libevent-2.0.22-stable
 
   ./autogen.sh
-  ./configure --host=$TOOL
+  CFLAGS="-fdata-sections -ffunction-sections" ./configure --host=$TOOL
   make clean
   make -j8
 
@@ -115,7 +115,7 @@ if [ $2 = "lua" ] || [ $# -lt 2 ]; then
   cd lua-5.3.2
 
   make clean
-  make generic MYCFLAGS=-DLUA_COMPAT_MODULE CC=$TOOL-gcc RANLIB=$TOOL-ranlib #AR=$TOOL-ar
+  make generic MYCFLAGS="-DLUA_COMPAT_MODULE -fdata-sections -ffunction-sections" CC=$TOOL-gcc RANLIB=$TOOL-ranlib #AR=$TOOL-ar
 
   cp src/liblua.a ../lib-$OUT
   cp src/*.h ../include-$OUT