userland: Fix install prefix and generate pkgconfigs

several userspace libraries like libepoxy poke for pkgconfigs ( .pc )
files to detect egl support, and comes out to fail in configure stage,
one of the patches now adds support to generate .pc files for some known
cases. it could be further extended if needed for other libraries too

Secondly, the default CMAKE_INSTALL_PREFIX is /opt/vc but in OE we use
proper /usr so lets make this change as well, it simplifies do_install()

.so are not versioned so we need to grapple with OE's defaults of
expecting versioned .so files.

Adjust packages for -dev package such that it can automatically package
pkgconfig files and inherit pkgconfig because in cmake code we are not
looking for pkgconfig so we need the dependency also put in place for
consistent builds

Signed-off-by: Khem Raj <raj.khem@gmail.com>

recipes-graphics/userland/userland_git.bb

@@ -21,31 +21,28 @@ SRC_URI = "\
     file://0001-fix-gcc-5.x-inlines.patch \
     file://0002-fix-musl-build.patch \
     file://0003-fix-alloc-size-uninitialized.patch \
+    file://0002-set-VMCS_INSTALL_PREFIX-to-usr.patch \
+    file://0003-cmake-generate-and-install-pkgconfig-files.patch \
     "
 
 S = "${WORKDIR}/git"
 
-inherit cmake
+inherit cmake pkgconfig
 
 EXTRA_OECMAKE = "-DCMAKE_BUILD_TYPE=Release -DCMAKE_EXE_LINKER_FLAGS='-Wl,--no-as-needed'"
 CFLAGS_append = " -fPIC"
 
-# The compiled binaries don't provide sonames.
-SOLIBS = "${SOLIBSDEV}"
-
-do_install_append() {
-    mkdir -p ${D}/${prefix}
-    mv ${D}/opt/vc/* ${D}/${prefix}
-    rm -rf ${D}/opt
-}
+# Shared libs from userland package  build aren't versioned, so we need
+# to force the .so files into the runtime package (and keep them
+# out of -dev package).
+FILES_SOLIBSDEV = ""
 
 FILES_${PN} += " \
-    ${libdir}/*${SOLIBS} \
+    ${libdir}/*.so \
     ${libdir}/plugins"
-FILES_${PN}-dev = "${includedir} \
+FILES_${PN}-dev += "${includedir} \
                    ${prefix}/src"
 FILES_${PN}-doc += "${datadir}/install"
 FILES_${PN}-dbg += "${libdir}/plugins/.debug"
 
 PACKAGE_ARCH = "${MACHINE_ARCH}"
-