[Buildroot] [PATCH 1/1] package/waylandpp: fix build with cmake < 3.13

[Yann E. MORIN]

Fabrice, All,

On 2019-11-22 19:09 +0100, Fabrice Fontaine spake thusly:
> Fixes:
>  - http://autobuild.buildroot.org/results/587fb44ea2272bd134262716870f5ad36a18661d

Applied to master, thanks.

Regards,
Yann E. MORIN.

> Signed-off-by: Fabrice Fontaine <fontaine.fabrice at gmail.com>
> ---
>  ...ke-Make-target_link_options-optional.patch | 37 +++++++++++++++++++
>  1 file changed, 37 insertions(+)
>  create mode 100644 package/waylandpp/0001-cmake-Make-target_link_options-optional.patch
> 
> diff --git a/package/waylandpp/0001-cmake-Make-target_link_options-optional.patch b/package/waylandpp/0001-cmake-Make-target_link_options-optional.patch
> new file mode 100644
> index 0000000000..a7746c1f36
> --- /dev/null
> +++ b/package/waylandpp/0001-cmake-Make-target_link_options-optional.patch
> @@ -0,0 +1,37 @@
> +From a39c0c115e19150551c01b04a5e903376633e771 Mon Sep 17 00:00:00 2001
> +From: Nils Christopher Brause <nilschrbrause at googlemail.com>
> +Date: Fri, 22 Nov 2019 17:39:20 +0100
> +Subject: [PATCH] [cmake] Make target_link_options optional, lowering the
> + required cmake version to 3.4.
> +
> +[Retrieved from:
> +https://github.com/NilsBrause/waylandpp/commit/a39c0c115e19150551c01b04a5e903376633e771]
> +Signed-off-by: Fabrice Fontaine <fontaine.fabrice at gmail.com>
> +---
> + CMakeLists.txt | 6 ++++--
> + 1 file changed, 4 insertions(+), 2 deletions(-)
> +
> +diff --git a/CMakeLists.txt b/CMakeLists.txt
> +index 386f8d8..47a412c 100644
> +--- a/CMakeLists.txt
> ++++ b/CMakeLists.txt
> +@@ -21,7 +21,7 @@
> + # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
> + # SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
> + 
> +-cmake_minimum_required(VERSION 3.13)
> ++cmake_minimum_required(VERSION 3.4)
> + project(waylandpp VERSION 0.2.7 LANGUAGES CXX)
> + 
> + # packages
> +@@ -160,7 +160,9 @@ if(BUILD_LIBRARIES)
> +     "include/wayland-client.hpp;include/wayland-util.hpp;${CMAKE_CURRENT_BINARY_DIR}/wayland-client-protocol.hpp;${CMAKE_CURRENT_BINARY_DIR}/wayland-version.hpp"
> +     src/wayland-client.cpp src/wayland-util.cpp wayland-client-protocol.cpp wayland-client-protocol.hpp)
> +   # Report undefined references only for the base library.
> +-  target_link_options(wayland-client++ PRIVATE "-Wl,--no-undefined")
> ++  if(${CMAKE_VERSION} VERSION_GREATER "3.14.0")
> ++    target_link_options(wayland-client++ PRIVATE "-Wl,--no-undefined")
> ++  endif()
> +   define_library(wayland-client-extra++ "${WAYLAND_CLIENT_CFLAGS}" "${WAYLAND_CLIENT_LIBRARIES}"
> +     "${CMAKE_CURRENT_BINARY_DIR}/wayland-client-protocol-extra.hpp"
> +     wayland-client-protocol-extra.cpp wayland-client-protocol-extra.hpp wayland-client-protocol.hpp)
> -- 
> 2.24.0
> 
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