# CONFIGURE_FEATURE(feature)
#
#
-# For a feature ${_feature} (written in all caps) the following options,
+# For a feature ${feature} (written in all caps) the following options,
# variables and macros have to be defined (except marked as optional):
#
-# DEAL_II_WITH_${_feature} (bool, mandatory)
+# DEAL_II_WITH_${feature} (bool, mandatory)
# If DEAL_II_FEATURE_AUTODETECTION is OFF, this boolean determines
# whether the feature will be configured.
# If DEAL_II_FEATURE_AUTODETECTION is ON, this boolean will
# automatically be set if configuring the feature was successful.
#
-# FEATURE_${_feature}_DEPENDS (variable, optional)
+# FEATURE_${feature}_DEPENDS (variable, optional)
# a variable which contains an optional list of other features
# this feature depends on (and which have to be enbled for this feature
# to work.) The features must be given with the full option toggle:
# DEAL_II_WITH_[...]
#
-# FEATURE_${_feature}_HAVE_BUNDLED (variable, optional)
+# FEATURE_${feature}_HAVE_BUNDLED (variable, optional)
# which should either be set to TRUE if all necessary libraries of the
# features comes bundled with deal.II and hence can be supported
# without external dependencies, or unset.
#
-# FEATURE_${_feature}_CONFIGURE_BUNDLED(var) (macro, optional)
+# FEATURE_${feature}_CONFIGURE_BUNDLED(var) (macro, optional)
# which should setup all necessary configuration for the feature with
# bundled source dependencies. var set to TRUE indicates success,
# otherwise this script gives an error.
#
-# FEATURE_${_feature}_FIND_EXTERNAL(var) (macro, mandatory)
+# FEATURE_${feature}_FIND_EXTERNAL(var) (macro, mandatory)
# which should set var to TRUE if all dependencies for the feature are
# fullfilled. In this case all necessary variables for
-# FEATURE_${_feature}_CONFIGURE_EXTERNAL must be set. Otherwise
+# FEATURE_${feature}_CONFIGURE_EXTERNAL must be set. Otherwise
# var should remain unset.
# This macro should give an error (FATAL_ERROR or FATAL_ERROR).
#
-# FEATURE_${_feature}_CONFIGURE_EXTERNAL(var) (macro, mandatory)
+# FEATURE_${feature}_CONFIGURE_EXTERNAL(var) (macro, mandatory)
# which should setup all necessary configuration for the feature with
# external dependencies. var set to TRUE indicates success,
# otherwise this script gives an error.
#
-# FEATURE_${_feature}_CUSTOM_ERROR_MESSAGE() (variable, optional)
-# which should either be set to TRUE if FEATURE_${_feature}_ERROR_MESSAGE
+# FEATURE_${feature}_CUSTOM_ERROR_MESSAGE() (variable, optional)
+# which should either be set to TRUE if FEATURE_${feature}_ERROR_MESSAGE
# is set up, or be undefined.
#
-# FEATURE_${_feature}_ERROR_MESSAGE() (macro, optional)
+# FEATURE_${feature}_ERROR_MESSAGE() (macro, optional)
# which should print a meaningfull error message (with FATAL_ERROR) for
# the case that no external library was found (and bundled is not
# allowed to be used.) If not defined, a suitable default error message