From 630b4d4ea9e63ca718b887ef345dca3ab73e2312 Mon Sep 17 00:00:00 2001
From: Kenneth Heafield <github@kheafield.com>
Date: Tue, 30 Oct 2012 20:02:59 +0000
Subject: [PATCH] Get more paranoid by checking for headers too

---
 util/Jamfile | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/util/Jamfile b/util/Jamfile
index 0d271d307..9209708b0 100644
--- a/util/Jamfile
+++ b/util/Jamfile
@@ -1,11 +1,11 @@
 local compressed_flags = <include>.. <define>HAVE_ZLIB ;
 local compressed_deps = /top//z ;
-if [ test_library "bz2" ] {
+if [ test_library "bz2" ] && [ test_header "bzlib.h" ] {
   external-lib bz2 ;
   compressed_flags += <define>HAVE_BZLIB ;
   compressed_deps += bz2 ;
 }
-if [ test_library "lzma" ] {
+if [ test_library "lzma" ] && [ test_header "lzma.h" ] {
   external-lib lzma ;
   compressed_flags += <define>HAVE_XZLIB ;
   compressed_deps += lzma ;