--- 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='2021-02-03 10:26:22 -0500'>2021-02-03</span></td><td><a href='/guix/commit/gnu/packages/mingw.scm?id=44c98c997933c4dc531775f1bb0848b39c7abf37'>gnu: Add mingw-w64-tools.</a><span class='msg-avail'>...</span></td><td>Léo Le Bouter</td></tr>
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<tr><td><span title='2021-02-03 10:26:22 -0500'>2021-02-03</span></td><td><a href='/guix/commit/gnu/packages/mingw.scm?id=88c635d96a1dfba90278dd9a3c2fcf523c74b55c'>gnu: make-mingw-w64: Use a mirror URI and fix lint errors.</a><span class='msg-avail'>...</span></td><td>Léo Le Bouter</td></tr>