From 02728eda1f6228507f3753b197cf9520d3522472 Mon Sep 17 00:00:00 2001
From: Matt Mullins <mmullins@mmlx.us>
Date: Sun, 25 May 2014 18:24:50 -0700
Subject: [PATCH] Use a GNU ld version script to hide all symbols

Without this, running clang (or anything else that uses LLVM) will crash
because we might LD_PRELOAD the wrong symbol versions into its binary.

We don't need to export any symbols at all, since everything is done via the
.init section.  This library just needs to be mapped in memory somewhere so our
function pointers don't disappear.
---
 Makefile.am | 2 +-
 version     | 3 +++
 2 files changed, 4 insertions(+), 1 deletion(-)
 create mode 100644 version

diff --git a/Makefile.am b/Makefile.am
index a050475..4c319b5 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -2,5 +2,5 @@ ACLOCAL_AMFLAGS = -Im4
 lib_LTLIBRARIES = libfuckit.la
 
 libfuckit_la_CXXFLAGS = @LLVM_CFLAGS@ $(AM_CFLAGS)
-libfuckit_la_LDFLAGS = $(shell @LLVM_CONFIG@ --ldflags) @LLVM_LIBS@
+libfuckit_la_LDFLAGS = $(shell @LLVM_CONFIG@ --ldflags) @LLVM_LIBS@ -Wl,--version-script=@srcdir@/version
 libfuckit_la_SOURCES = fuckit.cpp
diff --git a/version b/version
new file mode 100644
index 0000000..7c1db4c
--- /dev/null
+++ b/version
@@ -0,0 +1,3 @@
+VERSION_0.1 {
+	local: *;
+};
-- 
2.11.0