-
-# AT_COMPILE(OUTPUT, [SOURCES = OUTPUT.c])
-# ----------------------------------------
-#
-m4_define([AT_COMPILE],
-[AT_CHECK([$CC $CFLAGS $CPPFLAGS m4_default([$2], [$1.c]) -o $1], 0,
- [], [ignore])])
-
-
-# AT_PARSER_CHECK(COMMAND, EXIT-STATUS, EXPOUT, EXPERR)
-# -----------------------------------------------------
-# So that we can run `./testsuite PREPARSER='valgrind -q' for instance.
-m4_define([AT_PARSER_CHECK],
-[AT_CHECK([$PREPARSER $1], [$2], [$3], [$4])])
-
-AT_INIT
-
-AT_TESTED([bison])
+# Bison often leaks memory when its exit status is non-zero, so set
+# --leak-check=summary for Valgrind in that case.
+m4_pushdef([ORIGINAL_AT_CHECK], m4_defn([AT_CHECK]))
+m4_pushdef([AT_CHECK],
+[ORIGINAL_AT_CHECK(
+ m4_if(m4_index(m4_quote($1), [bison ]), 0,
+ m4_if(m4_quote($2), [0], [], m4_quote($2), [], [],
+ [[VALGRIND_OPTS="$VALGRIND_OPTS --leak-check=summary --show-reachable=no"; export VALGRIND_OPTS; ]]))$@)])