source: optimize/optimize_functions

#!/bin/bash

set +e


#----------------------------------#
validate_opt_settings() {          # Show optimize setting and wait user agreement
#----------------------------------#
  local OPT_VAR optVal

  echo -e "\t\t${RED}${BOLD}WARNING:${OFF}\n"
  echo -e "${BOLD}The use of build optimizations may be dangerous.\n"
  echo -e "You should know what you are doing and be sure that the"
  echo -e "optimization settings listed below are what you want.\n"
  echo -e "If there are build issues or the system doesn't work as"
  echo -e "expected, please rebuild without optimizations before"
  echo -e "asking for support.${OFF}\n"

#  [ -n "$JH_MAKEFLAGS" ] && \
#  echo -e "BLACK_LIST: ${L_arrow}${BOLD}${BLACK_LIST}${OFF}${R_arrow}\n"

  echo -e "DEF_OPT_MODE: ${L_arrow}${BOLD}${DEF_OPT_MODE}${OFF}${R_arrow}\n"

  for OPT_VAR in $ACTIVE_OPT_VARS ; do
    eval optVal=\$${OPT_VAR}_${DEF_OPT_MODE}
    echo -e "${OPT_VAR}: ${L_arrow}${BOLD}${optVal}${OFF}${R_arrow}"
  done

  echo -e "\nOverridden packages:"
  cat optimize/opt_override
  echo "${nl_}${SD_BORDER}${nl_}"

  echo -n "Are you happy with these optimization settings? yes/no (no): "
  read ANSWER
  if [ x$ANSWER != "xyes" ] ; then
    echo "${nl_}Fix the optimization options and rerun the script.${nl_}"
    exit
  fi
  echo "${nl_}${SD_BORDER}${nl_}"
}

#----------------------------------#
wrt_optimize() {                   # Apply pkg specific opt's to build
#----------------------------------#
  local pkg=$1
  local optMode optVal OPT_VAR

  optMode=`awk -v pkg="$pkg" '$1 == pkg { print $2 }' $JHALFSDIR/opt_override`
  if [[ "$optMode" = "" ]] ; then
    optMode=$DEF_OPT_MODE;
  fi

  for OPT_VAR in $ACTIVE_OPT_VARS ; do
    eval optVal=\$${OPT_VAR}_$optMode

    if [[ "$optVal" != "unset" ]]; then
(
cat << EOF
        @echo "export $OPT_VAR=\"$optVal\"" >> envars
EOF
) >> $MKFILE.tmp
    else
      continue
    fi
  done
}

#----------------------------------#
wrt_makeflags() {                  # Apply MAKEFLAGS to build
#----------------------------------#
  local pkg=$1
  local MKF=$2
  local NJJ=$3

  if [[ "$BLACK_LIST" =~ ${pkg} ]]; then
    MKF="-j1"
    NJJ="1"
  fi

(
cat << EOF
        @echo "export MAKEFLAGS=\"$MKF\"" >> envars
        @echo "export NINJAJOBS=\"$NJJ\"" >> envars
EOF
) >> $MKFILE.tmp
}