[meta-oe][PATCH] libvncserver: fix generated LibVNCServerTargets.cmake

[meta-oe][PATCH] libvncserver: fix generated LibVNCServerTargets.cmake

[marc.ferland]

From: Marc Ferland <marc.ferland@sonatest.com>

The currently generated LibVNCServerTargets.cmake will include the
following 'set_target_properties':

    set_target_properties(LibVNCServer::vncclient PROPERTIES
      INTERFACE_INCLUDE_DIRECTORIES "${_IMPORT_PREFIX}/include"
      INTERFACE_LINK_LIBRARIES "systemd;/usr/lib/libz.so;/usr/lib/liblzo2.so;/usr/lib/libjpeg.so;/usr/lib/libgcrypt.so;/usr/lib/libgnutls.so"
    )

INTERFACE_LINK_LIBRARIES here points to absolute paths which hardcodes
the library paths. From CMake doc [1]:

    Note that it is not advisable to populate the INTERFACE_LINK_LIBRARIES
    of a target with absolute paths to dependencies. That would hard-code
    into installed packages the library file paths for dependencies as
    found on the machine the package was made on.

This breaks krfb build (kde desktop sharing server) since CMake cannot
find these libraries. Removing the absolute paths solves the issue.

Note: I also added a 'inherit pkgconfig' since libvncserver uses it to
detect libsystemd presence.

1: https://cmake.org/cmake/help/latest/prop_tgt/INTERFACE_LINK_LIBRARIES.html

Signed-off-by: Marc Ferland <marc.ferland@sonatest.com>
---
 meta-oe/recipes-graphics/libvncserver/libvncserver_0.9.15.bb | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/meta-oe/recipes-graphics/libvncserver/libvncserver_0.9.15.bb b/meta-oe/recipes-graphics/libvncserver/libvncserver_0.9.15.bb
index 9d2d0a5743..8c6b3f7e14 100644
--- a/meta-oe/recipes-graphics/libvncserver/libvncserver_0.9.15.bb
+++ b/meta-oe/recipes-graphics/libvncserver/libvncserver_0.9.15.bb
@@ -42,7 +42,7 @@ PACKAGECONFIG[zlib] = "-DWITH_ZLIB=ON,-DWITH_ZLIB=OFF,zlib"
 PACKAGE_BEFORE_PN = "libvncclient"
 FILES:libvncclient = "${libdir}/libvncclient.*"
 
-inherit cmake
+inherit cmake pkgconfig
 
 SRC_URI = "git://github.com/LibVNC/libvncserver;branch=master;protocol=https;tag=LibVNCServer-${PV} \
            file://0001-CMake-require-at-least-CMake-3.5.patch \
@@ -53,5 +53,5 @@ SRCREV = "9b54b1ec32731bd23158ca014dc18014db4194c3"
 EXTRA_OECMAKE = "-DMAKE_INSTALL_LIBDIR=${libdir}"
 
 do_install:append() {
-    sed -i -e 's|${STAGING_DIR_HOST}||g' ${D}${libdir}/cmake/LibVNCServer/LibVNCServerTargets.cmake
+    sed -i -e 's|${STAGING_DIR_HOST}${libdir}/||g' ${D}${libdir}/cmake/LibVNCServer/LibVNCServerTargets.cmake
 }
-- 
2.34.1