message: Auto-detect cmake3 binaries
diff: # Convenience wrapper for easily viewing/setting options that
  # the project's CMake scripts will recognize.
  -# check for `cmake` command
  -type cmake > /dev/null 2>&1 || {
  - echo "\
  -This package requires CMake, please install it first, then you may
  -use this configure script to access CMake equivalent functionality.\
  -" >&2;
  - exit 1;
  -}
  -
  command="$0 $*"
  dirname_0=`dirname $0`
  sourcedir=`cd $dirname_0 && pwd`
  @@ -19,6 +10,7 @@ usage="\
  Usage: $0 [OPTION]... [VAR=VALUE]...
  Build Options:
  + --cmake=PATH set a custom path to the CMake binary
  --generator=GENERATOR set CMake generator (see cmake --help)
  --build-type=TYPE set CMake build type [RelWithDebInfo]:
  - Debug: debugging flags enabled
  @@ -175,9 +167,9 @@ configure ()
  cd "$workdir"
  if [ -n "$5" ]; then
  - cmake -G "$5" $CMakeCacheEntries "$sourcedir"
  + "$CMakeCommand" -G "$5" $CMakeCacheEntries "$sourcedir"
  else
  - cmake $CMakeCacheEntries "$sourcedir"
  + "$CMakeCommand" $CMakeCacheEntries "$sourcedir"
  fi
  printf "#!/bin/sh\n\n" > config.status
  @@ -223,6 +215,9 @@ while [ $# -ne 0 ]; do
  echo "${usage}" 1>&2
  exit 1
  ;;
  + --cmake=*)
  + CMakeCommand="$optarg"
  + ;;
  --generator=*)
  CMakeGenerator="$optarg"
  ;;
  @@ -359,6 +354,21 @@ while [ $# -ne 0 ]; do
  shift
  done
  +# Check for `cmake` command.
  +if [ -z "$CMakeCommand" ]; then
  + # prefer cmake3 over "regular" cmake (cmake == cmake2 on RHEL)
  + if command -v cmake3 >/dev/null 2>&1 ; then
  + CMakeCommand="cmake3"
  + elif command -v cmake >/dev/null 2>&1 ; then
  + CMakeCommand="cmake"
  + else
  + echo "This package requires CMake, please install it first."
  + echo "Then you may use this script to configure the CMake build."
  + echo "Note: pass --cmake=PATH to use cmake in non-standard locations."
  + exit 1;
  + fi
  +fi
  +
  # At this point we save the global CMake variables so that configure() can
  # later use them.
  CMakeDefaultCache=$CMakeCacheEntries
  