autogen.sh

   1 #!/bin/sh
   2 [ "${0%/*}" = "$0" ] || cd "${0%/*}" || exit
   3
   4 # %reldir%/%canon_reldir% (%D%/%C%) only appeared in automake 1.14, but RHEL/CentOS 7 has 1.13.4
   5 # This is an (overly) simplistic preprocessor that papers around this for the duration of the generation step,
   6 # and can be removed once support for CentOS 7 is dropped
   7 automake --version | awk '{print $NF; exit}' | (
   8         IFS=. read -r AM_MAJ AM_MIN _
   9         [ "$AM_MAJ" -gt 1 ] || [ "$AM_MIN" -ge 14 ]
  10 ) || {
  11         process_root() {
  12                 root="$1"; shift
  13
  14                 grep -q '%[CD]%' "$root/Makefile.am" || return
  15                 find "$root" -name Makefile.am "$@" | while read -r dir; do
  16                         dir="${dir%/Makefile.am}"
  17                         grep -q '%[CD]%' "$dir/Makefile.am" || continue
  18
  19                         reldir="${dir#"$root"}"
  20                         reldir="${reldir#/}"
  21
  22                         canon_reldir="$(printf '%s' "$reldir" | tr -C 'a-zA-Z0-9@_' '_')"
  23
  24                         reldir_slash="$reldir/"
  25                         canon_reldir_slash="${canon_reldir}_"
  26                         [ -z "$reldir" ] && reldir_slash=
  27                         [ -z "$reldir" ] && canon_reldir_slash=
  28
  29                         echo "$dir/Makefile.am" >&3
  30                         sed -i~ -e "s:%D%/:$reldir_slash:g"       -e "s:%D%:$reldir:g" \
  31                                 -e "s:%C%_:$canon_reldir_slash:g" -e "s:%C%:$canon_reldir:g" "$dir/Makefile.am"
  32                 done 3>>"$substituted_files"
  33         }
  34
  35         rollback() {
  36                 while read -r f; do
  37                         mv "$f~" "$f"
  38                 done < "$substituted_files"
  39                 rm -f "$substituted_files"
  40         }
  41
  42
  43         echo "Automake <1.14; papering over missing %reldir%/%canon_reldir% support" >&2
  44
  45         substituted_files="$(mktemp)"
  46         trap rollback EXIT
  47
  48         roots="$(sed '/Makefile$/!d;/module/d;s:^\s*:./:;s:/Makefile::;/^\.$/d' configure.ac)"
  49
  50         IFS="
  51 "
  52         for root in $roots; do
  53                 root="${root#./}"
  54                 process_root "$root"
  55         done
  56
  57         set -f
  58         # shellcheck disable=SC2086,SC2046
  59         process_root . $(printf '!\n-path\n%s/*\n' $roots)
  60 }
  61
  62 autoreconf -fiv && rm -rf autom4te.cache