header-vars: recognize more make flags ('-k' in particular)

* lib/am/header-vars.am (am__running_with_option): Here.
Few improvements to comments, while at it.
(am__make_keepgoing): New, tell whther make is being runt with
the '-k' option.
* t/make-keepgoing.tap: New test.
* t/list-of-tests.mk: Add it.
* t/make-dryrun.tap: Minor edits to keep it more in sync with
the new test.

Signed-off-by: Stefano Lattarini <stefano.lattarini@gmail.com>

1 files changed, 134 insertions, 0 deletions

diff --git a/t/make-keepgoing.tap b/t/make-keepgoing.tap
new file mode 100755
index 000000000..a81bf6c1d
--- /dev/null
+++ b/t/make-keepgoing.tap
@@ -0,0 +1,134 @@
+#! /bin/sh
+# Copyright (C) 2013 Free Software Foundation, Inc.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+# Check that $(am__make_keepgoing) works as expected.
+
+. test-init.sh
+
+plan_ 20
+
+mkdir kool # Also used later.
+if echo nil: | $MAKE -I kool -f -; then
+  make_supports_option_I () { return 0; }
+else
+  make_supports_option_I () { return 1; }
+fi
+
+echo AC_OUTPUT >> configure.ac
+
+cat > Makefile.am <<'END'
+all:
+	@echo 'Default target $@ should not be called'>&2; exit 1;
+k-y:
+	@echo ":: $$MAKEFLAGS ::" ;: For debugging.
+	$(am__make_keepgoing)
+k-n:
+	@echo ":: $$MAKEFLAGS ::" ;: For debugging.
+	! $(am__make_keepgoing)
+END
+
+check_make ()
+{
+  r=ok msg= mode= condition=: directive= reason= skip_reason=
+  case $1 in
+    k-[yn]) mode=$1;;
+    *) fatal_ "check_run: invalid usage";;
+  esac
+  shift
+  while test $# -gt 0; do
+    case $1 in
+      -C) condition=$2 skip_reason=$3; shift; shift;;
+      -M) msg=$2; shift;;
+      -X) directive=TODO;;
+      --) shift; break;;
+       *) break;;
+    esac
+    shift
+  done
+  msg=${mode}${msg:+" [$msg]"}
+  if $condition; then
+    $MAKE "$mode" ${1+"$@"} || r='not ok'
+  else
+    directive=SKIP reason=$skip_reason
+  fi
+  result_ "$r" -D "$directive" -r "$reason" "$msg"
+  unset r msg mode condition directive reason skip_reason
+}
+
+# ----------------------------------------------------------------------
+
+$ACLOCAL    || fatal_ "aclocal failed"
+$AUTOCONF   || fatal_ "autoconf failed"
+$AUTOMAKE   || fatal_ "automake failed"
+./configure || fatal_ "configure failed"
+
+# ----------------------------------------------------------------------
+
+check_make k-n
+
+# Test against a possible regressions similar to those that affected
+# detection of dry mode ("make -n").
+check_make k-n TESTS="k.test k2.test"
+check_make k-n TESTS="k1 k k2" AM_MAKEFLAGS="TESTS='k1 k2'"
+check_make k-n TESTS="k1 k k2" AM_MAKEFLAGS='TESTS="k1 k k2"'
+check_make k-n FOOFLAGS="-k -k -nkf2 k -ks --keep -k"
+check_make k-n MYFLAGS="-k --keepgoing -k --keep-run -k"
+
+# ----------------------------------------------------------------------
+
+check_make k-y -k
+check_make k-y -C using_gmake "\$MAKE is not GNU make" --keep-going
+
+# ----------------------------------------------------------------------
+
+# Related to automake bug#12554: the "k" in "kool" used to confound
+# am__make_keepgoing into thinking the '-k' option had been passed.
+
+pr='bug#12554'
+
+check_make k-n -C make_supports_option_I "-I make option unsupported" \
+               -M "$pr" -I kool
+
+check_make k-n -C using_gmake "\$MAKE is not GNU make" \
+               -M "$pr" -I kool --include keep-going
+
+check_make k-y -C make_supports_option_I "-I make option unsupported" \
+               -M "$pr" -I kool -k
+
+check_make k-y -C using_gmake "\$MAKE is not GNU make" \
+               -M "$pr" --keep-going -I kool --include keep-going
+
+# ----------------------------------------------------------------------
+
+# Test for when shell metacharacters or backslashes are in $(MAKEFLAGS).
+
+check_metachars ()
+{
+  check_make k-n -M "metachars" "$@"
+}
+
+check_metachars MYFLAGS="-k \"k\" '-k' --keep-going -k"
+check_metachars MYFLAGS='-knf2\ k\ \\k'
+check_metachars MYFLAGS="(&) | ; \" \` '"
+check_metachars MYFLAGS=" ' # ' "
+check_metachars MYFLAGS='$(foo)'
+check_metachars MYFLAGS='$(foo -k)'
+check_metachars MYFLAGS='`touch bad`'
+check_metachars MYFLAGS='`touch --keep-going bad`'
+
+# ----------------------------------------------------------------------
+
+: