configure.ac: Use a heredoc for printing the summary
diff --git a/expat/configure.ac b/expat/configure.ac
index c827cff..3d892eb 100644
--- a/expat/configure.ac
+++ b/expat/configure.ac
@@ -329,16 +329,18 @@
AC_CONFIG_FILES([run.sh], [chmod +x run.sh])
AC_OUTPUT
-echo ""
-echo "Automake flags (can be overridden by user flags):"
-echo "AM_CPPFLAGS: $AM_CPPFLAGS"
-echo "AM_CFLAGS: $AM_CFLAGS"
-echo "AM_CXXFLAGS: $AM_CXXFLAGS"
-echo "AM_LDFLAGS: $AM_LDFLAGS"
-echo ""
-echo "User flags (overrides Automake flags on conflict):"
-echo "CPPFLAGS: $CPPFLAGS"
-echo "CFLAGS: $CFLAGS"
-echo "CXXFLAGS: $CXXFLAGS"
-echo "LDFLAGS: $LDFLAGS"
+cat <<EOF
+
+Automake flags (can be overridden by user flags):
+ AM_CPPFLAGS: ${AM_CPPFLAGS}
+ AM_CFLAGS: ${AM_CFLAGS}
+ AM_CXXFLAGS: ${AM_CXXFLAGS}
+ AM_LDFLAGS: ${AM_LDFLAGS}
+
+User flags (override Automake flags on conflict):
+ CPPFLAGS: ${CPPFLAGS}
+ CFLAGS: ${CFLAGS}
+ CXXFLAGS: ${CXXFLAGS}
+ LDFLAGS: ${LDFLAGS}
+EOF
