From 22e03ef8a9e3adcbc6b2f16c3cc98e4e14443eed Mon Sep 17 00:00:00 2001 From: Bernd Kuhls Date: Sat, 24 Sep 2016 17:51:22 +0200 Subject: [PATCH 1/1] CMakeLists.txt: Do not add libdl to LINKER_LIBS for static builds Without this patch -ldl is present in opencv.pc which breaks OpenCV detection by ffmpeg, detected by buildroot autobuilders: http://autobuild.buildroot.net/results/765/7657e01481995a4f0d725467e935a83928a59a04//ffmpeg-3.1.3/config.log /home/peko/autobuild/instance-1/output/host/opt/ext-toolchain/bin/../lib/gcc/arm-buildroot-linux-uclibcgnueabi/4.9.4/../../../../arm-buildroot-linux-uclibcgnueabi/bin/ld: cannot find -ldl Patch sent upstream: https://github.com/opencv/opencv/pull/7337 Signed-off-by: Bernd Kuhls --- CMakeLists.txt | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/CMakeLists.txt b/CMakeLists.txt index 007b80d..99b047d 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -457,7 +457,10 @@ if(UNIX) elseif(${CMAKE_SYSTEM_NAME} MATCHES "QNX") set(OPENCV_LINKER_LIBS ${OPENCV_LINKER_LIBS} m) else() - set(OPENCV_LINKER_LIBS ${OPENCV_LINKER_LIBS} dl m pthread rt) + if(BUILD_SHARED_LIBS) + set(OPENCV_LINKER_LIBS ${OPENCV_LINKER_LIBS} dl) + endif() + set(OPENCV_LINKER_LIBS ${OPENCV_LINKER_LIBS} m pthread rt) endif() else() set(HAVE_LIBPTHREAD YES) -- 2.9.3