# HG changeset patch
# User John W. Eaton <jwe@octave.org>
# Date 1539196279 14400
# Node ID 2ee6a02e6f2876f521acacef6f1a035928caa882
# Parent  376a01935f6604007fc54b7f3e578a7e1ab545ba
check for ccache; don't attempt to use ccache if it is missing (bug #54746)

diff -r 376a01935f66 -r 2ee6a02e6f28 configure.ac
--- a/configure.ac	Mon Oct 08 09:13:55 2018 -0400
+++ b/configure.ac	Wed Oct 10 14:31:19 2018 -0400
@@ -81,6 +81,13 @@
      yes) USE_CCACHE=yes ;;
      *) AC_MSG_ERROR([bad value "$enableval" for --with-ccache]) ;;
    esac], [USE_CCACHE=no])
+if test "$USE_CCACHE" = yes; then
+  AC_CHECK_PROG(CCACHE, ccache, ccache)
+  if test -z "$CCACHE"; then
+    AC_MSG_WARN([ccache program not found; not using ccache for build])
+    USE_CCACHE=no
+  fi
+fi
 AC_SUBST(USE_CCACHE)
 
 AC_ARG_WITH([msys2],