diff -urw bareos-Release-20.0.2.orig/core/cmake/distname.sh bareos-Release-20.0.2/core/cmake/distname.sh
--- bareos-Release-20.0.2.orig/core/cmake/distname.sh	2021-06-10 06:07:18.000000000 -0930
+++ bareos-Release-20.0.2/core/cmake/distname.sh	2021-08-15 17:07:37.168216517 -0930
@@ -153,7 +153,7 @@
       elif test -f /etc/gentoo-release
       then
          PLATFORM=gentoo
-         DISTVER=`awk '/version / { print $5 }' < /etc/gentoo-release`
+         DISTVER=`awk '/release / { print $5 }' < /etc/gentoo-release`
       elif test -f /etc/debian_version
       then
          if `test -f /etc/apt/sources.list && grep -q ubuntu /etc/apt/sources.list`; then
diff -urw bareos-Release-20.0.2.orig/core/platforms/CMakeLists.txt bareos-Release-20.0.2/core/platforms/CMakeLists.txt
--- bareos-Release-20.0.2.orig/core/platforms/CMakeLists.txt	2021-06-10 06:07:18.000000000 -0930
+++ bareos-Release-20.0.2/core/platforms/CMakeLists.txt	2021-08-15 17:07:37.549226558 -0930
@@ -30,6 +30,8 @@
     message(STATUS "adding subdirectories debian and univention")
     add_subdirectory(debian)
     add_subdirectory(univention)
+  elseif(${PLATFORM} STREQUAL gentoo)
+    message(STATUS "PLATFORM: " ${PLATFORM})
   elseif(${PLATFORM} STREQUAL hpux)
     message(STATUS "PLATFORM: " ${PLATFORM})
   elseif(${PLATFORM} STREQUAL archlinux)