--- jdk14-bc54620a3848/make/autoconf/basics.m4	2020-02-07 04:40:54.000000000 +1030
+++ jdk14-bc54620a3848-new/make/autoconf/basics.m4	2020-04-24 10:59:33.056098506 +0930
@@ -583,7 +583,7 @@
   BASIC_SETUP_TOOL($1, [AC_PATH_PROGS($1, $2, , $3)])
   if test "x[$]$1" = x; then
     AC_MSG_NOTICE([Required tool $2 not found in PATH, checking built-in])
-    if help $2 > /dev/null 2>&1; then
+    if command -v $2 > /dev/null 2>&1; then
       AC_MSG_NOTICE([Found $2 as shell built-in. Using it])
       $1="$2"
     else
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<tr><td><span title='2020-03-19 23:24:50 +0100'>2020-03-19</span></td><td><a href='/guix/commit/gnu/packages/patches/foobillard++-pkg-config.patch?id=29a2f61e9704949cd6cda57aba11f0213104db6b'>gnu: Add foobillard++.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/games.scm (foobillard++): New variable.
* gnu/packages/patches/foobillard++-pkg-config.patch: New file.
* gnu/local.mk: Reference new file.
</span></span></td><td>Nicolas Goaziou</td></tr>