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--- a/bc/fix-libmath_h
+++ b/bc/fix-libmath_h
@@ -1,9 +1,9 @@
-ed libmath.h <<EOS-EOS
-1,1s/^/{"/
-1,\$s/\$/",/
-2,\$s/^/"/
-\$,\$d
-\$,\$s/,\$/,0}/
-w
-q
-EOS-EOS
+#!/usr/bin/env bash
+sed -e '1 s/^/{"/' \
+ -e 's/$/",/' \
+ -e '2,$ s/^/"/' \
+ -e '$ d' \
+ -i libmath.h
+
+sed -e '$ s/$/0}/' \
+ -i libmath.h
--- a/configure
+++ b/configure
@@ -5288,7 +5288,7 @@ case $bcle-$bcrl-$LEX in
?-?-flex)
LEX="flex -I -8" ;;
?-y-*)
- as_fn_error $? "readline works only with flex." "$LINENO" 5 ;;
+ : ;; # as_fn_error $? "readline works only with flex." "$LINENO" 5 ;;
esac
case $LEX-`uname -s` in
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