From 266eec4ecf338f3f08771f8dfe79dbd5d9da00a1 Mon Sep 17 00:00:00 2001
From: Pierre Ossman <ossman@cendio.se>
Date: Wed, 19 Mar 2014 13:22:01 +0000
Subject: [PATCH] Backport r5160 from trunk.

git-svn-id: svn://svn.code.sf.net/p/tigervnc/code/branches/1_3@5169 3789f03b-4d11-0410-bbf8-ca57d06f2519
---
 CMakeLists.txt                    | 12 +++++++++++
 cmake/Modules/FindGcrypt.cmake    | 36 +++++++++++++++++++++++++++++++
 cmake/Modules/FindGpg_Error.cmake | 36 +++++++++++++++++++++++++++++++
 3 files changed, 84 insertions(+)
 create mode 100644 cmake/Modules/FindGcrypt.cmake
 create mode 100644 cmake/Modules/FindGpg_Error.cmake

diff --git a/CMakeLists.txt b/CMakeLists.txt
index f763828f..f2656d18 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -307,8 +307,20 @@ endif()
 option(ENABLE_GNUTLS "Enable protocol encryption and advanced authentication" ON)
 if(ENABLE_GNUTLS)
   find_package(GnuTLS)
+  find_package(Gcrypt)
+  find_package(Gpg_Error)
   if (GNUTLS_FOUND)
     include_directories(${GNUTLS_INCLUDE_DIR})
+    if (GCRYPT_FOUND)
+      include_directories(${GCRYPT_INCLUDE_DIR})
+      set(GNUTLS_LIBRARIES ${GNUTLS_LIBRARIES};${GCRYPT_LIBRARIES})
+      set(CMAKE_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES} ${GCRYPT_LIBRARIES})
+      if (GPG_ERROR_FOUND)
+        include_directories(${GPG_ERROR_INCLUDE_DIR})
+        set(GNUTLS_LIBRARIES ${GNUTLS_LIBRARIES};${GPG_ERROR_LIBRARIES})
+        set(CMAKE_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES} ${GPG_ERROR_LIBRARIES})
+      endif()
+    endif()
     add_definitions("-DHAVE_GNUTLS")
     add_definitions(${GNUTLS_DEFINITIONS})
     
diff --git a/cmake/Modules/FindGcrypt.cmake b/cmake/Modules/FindGcrypt.cmake
new file mode 100644
index 00000000..2158081a
--- /dev/null
+++ b/cmake/Modules/FindGcrypt.cmake
@@ -0,0 +1,36 @@
+# - Find gcrypt
+# Find the native GCRYPT includes and library
+#
+#  GCRYPT_FOUND - True if gcrypt found.
+#  GCRYPT_INCLUDE_DIR - where to find gcrypt.h, etc.
+#  GCRYPT_LIBRARIES - List of libraries when using gcrypt.
+
+if (GCRYPT_INCLUDE_DIR AND GCRYPT_LIBRARIES)
+  set(GCRYPT_FIND_QUIETLY TRUE)
+endif (GCRYPT_INCLUDE_DIR AND GCRYPT_LIBRARIES)
+
+# Include dir
+find_path(GCRYPT_INCLUDE_DIR
+	NAMES
+	  gcrypt.h
+)
+
+# Library
+find_library(GCRYPT_LIBRARY 
+  NAMES gcrypt
+)
+
+# handle the QUIETLY and REQUIRED arguments and set GCRYPT_FOUND to TRUE if 
+# all listed variables are TRUE
+INCLUDE(FindPackageHandleStandardArgs)
+FIND_PACKAGE_HANDLE_STANDARD_ARGS(GCRYPT DEFAULT_MSG GCRYPT_LIBRARY GCRYPT_INCLUDE_DIR)
+
+IF(GCRYPT_FOUND)
+  SET( GCRYPT_LIBRARIES ${GCRYPT_LIBRARY} )
+ELSE(GCRYPT_FOUND)
+  SET( GCRYPT_LIBRARIES )
+ENDIF(GCRYPT_FOUND)
+
+# Lastly make it so that the GCRYPT_LIBRARY and GCRYPT_INCLUDE_DIR variables
+# only show up under the advanced options in the gui cmake applications.
+MARK_AS_ADVANCED( GCRYPT_LIBRARY GCRYPT_INCLUDE_DIR )
diff --git a/cmake/Modules/FindGpg_Error.cmake b/cmake/Modules/FindGpg_Error.cmake
new file mode 100644
index 00000000..2f1d3725
--- /dev/null
+++ b/cmake/Modules/FindGpg_Error.cmake
@@ -0,0 +1,36 @@
+# - Find gpg-error
+# Find the native GPG_ERROR includes and library
+#
+#  GPG_ERROR_FOUND - True if gpg-error found.
+#  GPG_ERROR_INCLUDE_DIR - where to find gpg-error.h, etc.
+#  GPG_ERROR_LIBRARIES - List of libraries when using gpg-error.
+
+if (GPG_ERROR_INCLUDE_DIR AND GPG_ERROR_LIBRARIES)
+  set(GPG_ERROR_FIND_QUIETLY TRUE)
+endif (GPG_ERROR_INCLUDE_DIR AND GPG_ERROR_LIBRARIES)
+
+# Include dir
+find_path(GPG_ERROR_INCLUDE_DIR
+	NAMES
+	  gpg-error.h
+)
+
+# Library
+find_library(GPG_ERROR_LIBRARY 
+  NAMES gpg-error
+)
+
+# handle the QUIETLY and REQUIRED arguments and set GPG_ERROR_FOUND to TRUE if 
+# all listed variables are TRUE
+INCLUDE(FindPackageHandleStandardArgs)
+FIND_PACKAGE_HANDLE_STANDARD_ARGS(GPG_ERROR DEFAULT_MSG GPG_ERROR_LIBRARY GPG_ERROR_INCLUDE_DIR)
+
+IF(GPG_ERROR_FOUND)
+  SET( GPG_ERROR_LIBRARIES ${GPG_ERROR_LIBRARY} )
+ELSE(GPG_ERROR_FOUND)
+  SET( GPG_ERROR_LIBRARIES )
+ENDIF(GPG_ERROR_FOUND)
+
+# Lastly make it so that the GPG_ERROR_LIBRARY and GPG_ERROR_INCLUDE_DIR variables
+# only show up under the advanced options in the gui cmake applications.
+MARK_AS_ADVANCED( GPG_ERROR_LIBRARY GPG_ERROR_INCLUDE_DIR )
-- 
2.39.5