From 2592e630daa83bc66831d5f24bd54270e40d53dd Mon Sep 17 00:00:00 2001
From: Berkus Decker <berkus@madfire.net>
Date: Wed, 22 Feb 2017 19:52:42 +0200
Subject: [PATCH] Add libzip

---
 CMakeLists.txt           |  1 +
 modules/FindLibZip.cmake | 38 ++++++++++++++++++++++++++++++++++++++
 2 files changed, 39 insertions(+)
 create mode 100644 modules/FindLibZip.cmake

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 6cfb3d256..bf57f4a9a 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -10,6 +10,7 @@ set(CMAKE_INCLUDE_CURRENT_DIR ON)
 
 find_package(OpenAL REQUIRED)
 find_package(ZLIB REQUIRED)
+find_package(LibZip REQUIRED)
 find_package(OpenSSL REQUIRED)
 find_package(LibLZMA REQUIRED)
 find_package(GTK3 3.0 REQUIRED gtk)
diff --git a/modules/FindLibZip.cmake b/modules/FindLibZip.cmake
new file mode 100644
index 000000000..d3832a850
--- /dev/null
+++ b/modules/FindLibZip.cmake
@@ -0,0 +1,38 @@
+# Finds libzip.
+#
+# This module defines:
+# LIBZIP_INCLUDE_DIR_ZIP
+# LIBZIP_INCLUDE_DIR_ZIPCONF
+# LIBZIP_LIBRARY
+#
+
+find_package(PkgConfig)
+pkg_check_modules(PC_LIBZIP QUIET libzip)
+
+find_path(LIBZIP_INCLUDE_DIR_ZIP
+    NAMES zip.h
+    HINTS ${PC_LIBZIP_INCLUDE_DIRS})
+
+find_path(LIBZIP_INCLUDE_DIR_ZIPCONF
+    NAMES zipconf.h
+    HINTS ${PC_LIBZIP_INCLUDE_DIRS})
+
+find_library(LIBZIP_LIBRARY
+    NAMES zip)
+
+include(FindPackageHandleStandardArgs)
+FIND_PACKAGE_HANDLE_STANDARD_ARGS(
+    LIBZIP DEFAULT_MSG
+    LIBZIP_LIBRARY LIBZIP_INCLUDE_DIR_ZIP LIBZIP_INCLUDE_DIR_ZIPCONF)
+
+set(LIBZIP_VERSION 0)
+
+if (LIBZIP_INCLUDE_DIR_ZIPCONF)
+  FILE(READ "${LIBZIP_INCLUDE_DIR_ZIPCONF}/zipconf.h" _LIBZIP_VERSION_CONTENTS)
+  if (_LIBZIP_VERSION_CONTENTS)
+    STRING(REGEX REPLACE ".*#define LIBZIP_VERSION \"([0-9.]+)\".*" "\\1" LIBZIP_VERSION "${_LIBZIP_VERSION_CONTENTS}")
+  endif ()
+endif ()
+
+set(LIBZIP_VERSION ${LIBZIP_VERSION} CACHE STRING "Version number of libzip")
+