ffmpegthumbs: update to 18.08.0.

srcpkgs/ffmpegthumbs/template

@@ -1,6 +1,6 @@
 # Template file for 'ffmpegthumbs'
 pkgname=ffmpegthumbs
-version=18.04.3
+version=18.08.0
 revision=1
 build_style=cmake
 configure_args="-DBUILD_TESTING=OFF"
@@ -11,4 +11,8 @@ maintainer="Michael Straube <straubem@gmx.de>"
 license="GPL-2.0-or-later"
 homepage="https://download.kde.org/stable/applications"
 distfiles="${KDE_SITE}/applications/${version}/src/${pkgname}-${version}.tar.xz"
-checksum=e6b2e6cd096bbc87696fbdecec0c21de3ee688161fa0b1adc83952a8f8004472
+checksum=366fc0518a8f987247178dce774faad2643ddf2116b68f4b908459ef2d5f6ee5
+
+if [ "CROSS_BUILD" ]; then
+	hostmakedepends+=" kconfig-devel"
+fi