package/network/utils/xtables-addons/patches/001-build-fix-configure-compatiblity-with-POSIX-shells.patch

   1 From f07a0a5cb8b3c5e1aee8b30c7fa21ccfbf24a95a Mon Sep 17 00:00:00 2001
   2 Message-Id: <f07a0a5cb8b3c5e1aee8b30c7fa21ccfbf24a95a.1459880505.git.mschiffer@universe-factory.net>
   3 From: Matthias Schiffer <mschiffer@universe-factory.net>
   4 Date: Fri, 1 Apr 2016 22:24:00 +0200
   5 Subject: [PATCH] build: fix configure compatiblity with POSIX shells
   6
   7 The kernel version detection code uses some bashisms, which makes the build
   8 fail on Debian systems where /bin/sh links to dash. Replace with POSIX-
   9 conforming commands at the cost of requiring awk.
  10 ---
  11  configure.ac | 24 +++++++++---------------
  12  1 file changed, 9 insertions(+), 15 deletions(-)
  13
  14 diff --git a/configure.ac b/configure.ac
  15 index 82a1355..5a5ea57 100644
  16 --- a/configure.ac
  17 +++ b/configure.ac
  18 @@ -44,21 +44,15 @@ regular_CFLAGS="-Wall -Waggregate-return -Wmissing-declarations \
  19
  20  if test -n "$kbuilddir"; then
  21         AC_MSG_CHECKING([kernel version that we will build against])
  22 -       krel="$(make -sC "$kbuilddir" M=$PWD kernelrelease)";
  23 -       kmajor="${krel%%[[^0-9]]*}";
  24 -       kmajor="$(($kmajor+0))";
  25 -       krel="${krel:${#kmajor}}";
  26 -       krel="${krel#.}";
  27 -       kminor="${krel%%[[^0-9]]*}";
  28 -       kminor="$(($kminor+0))";
  29 -       krel="${krel:${#kminor}}";
  30 -       krel="${krel#.}";
  31 -       kmicro="${krel%%[[^0-9]]*}";
  32 -       kmicro="$(($kmicro+0))";
  33 -       krel="${krel:${#kmicro}}";
  34 -       krel="${krel#.}";
  35 -       kstable="${krel%%[[^0-9]]*}";
  36 -       kstable="$(($kstable+0))";
  37 +       krel="$(make -sC "$kbuilddir" M=$PWD kernelrelease | $AWK -v 'FS=[[^0-9.]]' '{print $1; exit}')";
  38 +       save_IFS=$IFS;
  39 +       IFS='.';
  40 +       set x $krel;
  41 +       IFS=$save_IFS;
  42 +       kmajor="$(($2+0))";
  43 +       kminor="$(($3+0))";
  44 +       kmicro="$(($4+0))";
  45 +       kstable="$(($5+0))";
  46         if test -z "$kmajor" -o -z "$kminor" -o -z "$kmicro"; then
  47                 echo "WARNING: Version detection did not succeed. Continue at own luck.";
  48         else
  49 --
  50 2.8.0
  51