support/dependencies/check-host-cmake.sh

   1 #!/bin/sh
   2
   3 candidate="${1}"
   4 version_min="${2}"
   5
   6 major_min="${version_min%.*}"
   7 minor_min="${version_min#*.}"
   8
   9 cmake=`which ${candidate}`
  10 if [ ! -x "${cmake}" ]; then
  11     # echo nothing: no suitable cmake found
  12     exit 1
  13 fi
  14
  15 # Extract version X.Y from versions in the form X.Y or X.Y.Z
  16 # with X, Y and Z numbers with one or more digits each, e.g.
  17 #   3.2     -> 3.2
  18 #   3.2.3   -> 3.2
  19 #   3.2.42  -> 3.2
  20 #   3.10    -> 3.10
  21 #   3.10.4  -> 3.10
  22 #   3.10.42 -> 3.10
  23 version="$(${cmake} --version \
  24            |sed -r -e '/.* ([[:digit:]]+\.[[:digit:]]+).*$/!d;' \
  25                    -e 's//\1/'
  26           )"
  27 major="${version%.*}"
  28 minor="${version#*.}"
  29
  30 if [ ${major} -gt ${major_min} ]; then
  31     echo "${cmake}"
  32 else
  33     if [ ${major} -eq ${major_min} -a ${minor} -ge ${minor_min} ]; then
  34         echo "${cmake}"
  35     else
  36         # echo nothing: no suitable cmake found
  37         exit 1
  38     fi
  39 fi