From b190626a474e6123937f11f5e4a28e976d41f319 Mon Sep 17 00:00:00 2001
From: Ferdinand Thiessen <rpm@fthiessen.de>
Date: Sun, 3 Feb 2019 02:20:29 +0100
Subject: [PATCH] CMake / Linux: make sure system zlib and bz2 headers are used

---
 CMakeLists.txt | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 0b6a8fa..4d283a3 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -252,6 +252,7 @@ set(TOMMATH_FILES
            src/libtommath/bn_s_mp_sub.c
 )
 
+# Needed for Windows
 set(ZLIB_BZIP2_FILES
            src/bzip2/blocksort.c
            src/bzip2/bzlib.c
@@ -283,8 +284,12 @@ if(WIN32)
 else()
     find_package(ZLIB REQUIRED)
     find_package(BZip2 REQUIRED)
+
     include_directories(${ZLIB_INCLUDE_DIR} ${BZIP2_INCLUDE_DIR})
     set(LINK_LIBS ${ZLIB_LIBRARY} ${BZIP2_LIBRARIES})
+
+    add_definitions(-D__SYS_ZLIB -D__SYS_BZLIB)
+
     option(WITH_LIBTOMCRYPT "Use system LibTomCrypt library" OFF)
     if(WITH_LIBTOMCRYPT)
         set(LINK_LIBS ${LINK_LIBS} tomcrypt)