--- llvm-15.0.0_rc2.ebuild	2022-08-15 03:56:19.760073999 +0300
+++ llvm-15.0.0_rc2-r1.ebuild	2022-08-15 02:13:43.139294586 +0300
@@ -342,6 +342,7 @@
 		# direct cache hit ratio
 		-DLLVM_APPEND_VC_REV=OFF
 		-DCMAKE_INSTALL_PREFIX="${EPREFIX}/usr/lib/llvm/${SLOT}"
+		-DLLVM_INSTALL_PACKAGE_DIR="${EPREFIX}/usr/lib/llvm/${SLOT}/${libdir}/cmake/llvm"
 		-DLLVM_LIBDIR_SUFFIX=${libdir#lib}
 
 		-DBUILD_SHARED_LIBS=OFF