eclass/cmake: fixup documentation

Signed-off-by: Aaron Bauman <[email protected]>

eclass/cmake.eclass

@@ -17,6 +17,11 @@
 # out-of-source builds (default), in-source builds and an implementation of the
 # well-known use_enable function for CMake.
 
+# @VARIABLE: _CMAKE_ECLASS
+# @INTERNAL
+# @DESCRIPTION:
+# If null set to 1
+
 if [[ -z ${_CMAKE_ECLASS} ]]; then
 _CMAKE_ECLASS=1
 
@@ -135,7 +140,10 @@ _cmake_banned_func() {
  die "${FUNCNAME[1]} is banned. use -D$1<related_CMake_variable>=\"\$(usex $2)\" instead"
 }
 
+# @FUNCTION: _cmake_check_build_dir
+# @DESCRIPTION:
 # Determine using IN or OUT source build
+
 _cmake_check_build_dir() {
  : ${CMAKE_USE_DIR:=${S}}
  if [[ -n ${CMAKE_IN_SOURCE_BUILD} ]]; then
@@ -268,8 +276,12 @@ cmake-utils_use() { _cmake_banned_func "" "$@" ; }
 # Banned. Use -DNOFOO=$(usex !foo) instead.
 cmake-utils_useno() { _cmake_banned_func "" "$@" ; }
 
+# @FUNCTION: _cmake_modify-cmakelists
+# @INTERNAL
+# @DESCRIPTION:
 # Internal function for modifying hardcoded definitions.
 # Removes dangerous definitions that override Gentoo settings.
+
 _cmake_modify-cmakelists() {
  debug-print-function ${FUNCNAME} "$@"