4585 for ac_prog in gawk mawk nawk awk

  4586 do

  4587   # Extract the first word of "$ac_prog", so it can be a program name with args.

  4588 set dummy $ac_prog; ac_word=$2

  4589 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5

  4590 $as_echo_n "checking for $ac_word... " >&6; }

  4591 if ${ac_cv_prog_AWK+:} false; then :

  4592   $as_echo_n "(cached) " >&6

  4593 else

  4594   if test -n "$AWK"; then

  4595   ac_cv_prog_AWK="$AWK" # Let the user override the test.

  4596 else

  4597 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR

  4598 for as_dir in $PATH

  4599 do

  4600   IFS=$as_save_IFS

  4601   test -z "$as_dir" && as_dir=.

  4602     for ac_exec_ext in '' $ac_executable_extensions; do

  4603   if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then

  4604     ac_cv_prog_AWK="$ac_prog"

  4605     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5

  4606     break 2

  4607   fi

  4608 done

  4609   done

  4610 IFS=$as_save_IFS

  4611 

  4612 fi

  4613 fi

  4614 AWK=$ac_cv_prog_AWK

  4615 if test -n "$AWK"; then

  4616   { $as_echo "$as_me:${as_lineno-$LINENO}: result: $AWK" >&5

  4617 $as_echo "$AWK" >&6; }

  4618 else

  4619   { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5

  4620 $as_echo "no" >&6; }

  4621 fi

  4622 

  4623 

  4624   test -n "$AWK" && break

  4625 done

  4626 

  4627 

  4628 # Check bison version, we need a version great or equal than 2.4 to build matiec.

  4629 [[ $(bison --version) =~ ([0-9][.][0-9]*) ]] && version_bison="${BASH_REMATCH[1]}"

  4630 

  4631 if awk -v ver="$version_bison" 'BEGIN { if (ver < 2.4) exit 1; }'; then :

  4632   have_bison_correct=yes

  4633 else

  4634   have_bison_correct=no

  4635 fi

  4636 

  4637 

  4638 if test "x${have_bison_correct}" = xno; then

  4639   echo "------------------------------------------"

  4640   echo " Wrong bison version: $version_bison < 2.4 "

  4641   echo "------------------------------------------"

  4642   (exit 1); exit 1;

  4643 fi

  5735