buildroot/package/exiv2/0002-cmake-always-depend-on-threads-not-only-in-the-xmp-c.patch

From 7acb235c05089e82b16634383ac2b33721258ba1 Mon Sep 17 00:00:00 2001
From: Bernd Kuhls <bernd.kuhls@t-online.de>
Date: Sat, 3 Jun 2017 18:25:05 +0200
Subject: [PATCH] cmake: always depend on threads, not only in the xmp case

Patch sent upstream: https://github.com/Exiv2/exiv2/pull/7

Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
---
 CMakeLists.txt         | 1 -
 config/CMakeChecks.txt | 2 ++
 src/CMakeLists.txt     | 2 ++
 3 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 7034bb67..64604c6f 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -120,7 +120,6 @@ IF( EXIV2_ENABLE_XMP )
     IF (NOT MINGW)
         set(THREADS_PREFER_PTHREAD_FLAG ON)
     ENDIF()
-    find_package(Threads REQUIRED)
 ENDIF( EXIV2_ENABLE_XMP )
 
 INCLUDE( config/CMakeChecks.txt )
diff --git a/config/CMakeChecks.txt b/config/CMakeChecks.txt
index b3a888f2..e0557642 100644
--- a/config/CMakeChecks.txt
+++ b/config/CMakeChecks.txt
@@ -51,6 +51,8 @@ INCLUDE_DIRECTORIES( ${CMAKE_INCLUDE_PATH} ${CMAKE_CURRENT_BINARY_DIR} ${CMAKE_C
 LINK_DIRECTORIES( ${CMAKE_LIBRARY_PATH} )
 SET( CMAKE_REQUIRED_INCLUDES ${CMAKE_INCLUDE_PATH} )
 
+find_package(Threads REQUIRED)
+
 IF( EXIV2_ENABLE_PNG )
     FIND_PACKAGE( ZLIB REQUIRED )
     INCLUDE_DIRECTORIES( ${ZLIB_INCLUDE_DIR} )
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index aecd6215..15d521c5 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -268,10 +268,12 @@ else()
         TARGET_LINK_LIBRARIES( exiv2lib ${PRIVATE_VAR} dl ${EXPAT_LIBRARIES} )
         TARGET_LINK_LIBRARIES( exiv2lib ${PRIVATE_VAR} dl ${CURL_LIBRARIES} )
         TARGET_LINK_LIBRARIES( exiv2lib ${PRIVATE_VAR} dl ${SSH_LIBRARIES} )
+        TARGET_LINK_LIBRARIES( exiv2lib ${PRIVATE_VAR} dl ${CMAKE_THREAD_LIBS_INIT} )
     else()
         TARGET_LINK_LIBRARIES( exiv2lib ${PRIVATE_VAR} ${EXPAT_LIBRARIES} )
         TARGET_LINK_LIBRARIES( exiv2lib ${PRIVATE_VAR} ${CURL_LIBRARIES} )
         TARGET_LINK_LIBRARIES( exiv2lib ${PRIVATE_VAR} ${SSH_LIBRARIES} )
+        TARGET_LINK_LIBRARIES( exiv2lib ${PRIVATE_VAR} ${CMAKE_THREAD_LIBS_INIT} )
     endif()
 endif()
 
-- 
2.11.0