dev-libs/cdk: skip non-exist directory for dodoc

Closes: https://bugs.gentoo.org/955827
Signed-off-by: Z. Liu <zhixu.liu@gmail.com>
Part-of: https://github.com/gentoo/gentoo/pull/42040
Closes: https://github.com/gentoo/gentoo/pull/42040
Signed-off-by: Sam James <sam@gentoo.org>

dev-libs/cdk/cdk-5.0.20230201-r2.ebuild

@@ -55,6 +55,7 @@ src_install() {
 	if use examples ; then
 		local x
 		for x in include c++ demos examples cli cli/utils cli/samples ; do
+			[[ -d ${x} ]] || continue
 			docinto ${x}
 			find ${x} -maxdepth 1 -mindepth 1 -type f -print0 | xargs -0 dodoc || die
 		done

dev-libs/cdk/cdk-5.0.20230201.ebuild

@@ -50,6 +50,7 @@ src_install() {
 	if use examples ; then
 		local x
 		for x in include c++ demos examples cli cli/utils cli/samples ; do
+			[[ -d ${x} ]] || continue
 			docinto ${x}
 			find ${x} -maxdepth 1 -mindepth 1 -type f -print0 | xargs -0 dodoc || die
 		done

dev-libs/cdk/cdk-5.0.20240331-r1.ebuild

@@ -55,6 +55,7 @@ src_install() {
 	if use examples ; then
 		local x
 		for x in include c++ demos examples cli cli/utils cli/samples ; do
+			[[ -d ${x} ]] || continue
 			docinto ${x}
 			find ${x} -maxdepth 1 -mindepth 1 -type f -print0 | xargs -0 dodoc || die
 		done

dev-libs/cdk/cdk-5.0.20240619-r2.ebuild

@@ -61,6 +61,7 @@ src_install() {
 	if use examples ; then
 		local x
 		for x in include c++ demos examples cli cli/utils cli/samples ; do
+			[[ -d ${x} ]] || continue
 			docinto ${x}
 			find ${x} -maxdepth 1 -mindepth 1 -type f -print0 | xargs -0 dodoc || die
 		done

dev-libs/cdk/cdk-5.0.20250116-r1.ebuild

@@ -57,6 +57,7 @@ src_install() {
 	if use examples ; then
 		local x
 		for x in include c++ demos examples cli cli/utils cli/samples ; do
+			[[ -d ${x} ]] || continue
 			docinto ${x}
 			find ${x} -maxdepth 1 -mindepth 1 -type f -print0 | xargs -0 dodoc || die
 		done