break generated file dependence on Makefile (bug #46063) * build-aux/mk-mxarray-h.in.sh, build-aux/mk-version-h.in.sh, build-aux/subst-config-vals.in.sh, build-aux/subst-cross-config-vals.in.sh, build-aux/subst-default-vals.in.sh, build-aux/subst-f77-isnan-macro.in.sh, build-aux/subst-script-vals.in.sh: New files with commands extracted from build-aux/common.mk. * build-aux/common.mk (ADDRESS_SANITIZER_OPTIONS, do_subst_config_vals, do_subst_cross_config_vals, do_subst_default_vals, do_subst_script_vals): Eliminate macros that are now in script files. (FONTCONFIG_CPPFLAGS, FT2_CPPFLAGS, LIBEXT): Move definition to configure.ac, use AC_SUBST to put values in subst-config-vals.sh and build-aux/subst-cross-config-vals.sh. (startupfiledir, localstartupfiledir): Move definition to configure.ac, use AC_SUBST to put values in subst-default-vals.sh. (ALL_FFLAGS): Delete unused macro. (simple-filter-rule): New macro. * build-aux/mk-default-qt-settings.in.sh: Rename and adapt from libgui/mk-default-qt-settings.in. * build-aux/mk-f77-def.in.sh: Rename and adapt from liboctave/cruft/mkf77def.in. * Makefile.am (EXTRA_DIST): Include new files in the list. * acinclude.m4 (OCTAVE_CONFIG_MOVE_IF_CHANGE_FILES): Assume file names have the suffix .sh and are generated from .in.sh. * Makefile.am (run-octave): Depend on build-aux/subst-script-vals.sh instead of Makefile. (octave-config.h): Use move-if-change rule. * configure.ac: Use ${X} instead of $(X) for variables in OCTAVE_SET_DEFAULT args. (SHARED_LIBS, STATIC_LIBS): AC_SUBST them. Protect timestamp of oct-conf-post.h with a move-if-change rule. * etc/module.mk (etc/icons/octave.appdata.xml, etc/icons/octave.desktop): Don't depend on Makefile. * libgui/module.mk (libgui/default-qt-settings): Depend on build-aux/mk-default-qt-settings.sh instead of Makefile. * build-env.h, build-env.cc (ALL_CFLAGS, ALL_CXXFLAGS, ALL_FFLAGS, ALL_LDFLAGS, LIBFLAGS): Delete variables. * libinterp/corefcn/module.mk ($(OPT_HANDLERS), $(COREFCN_FT2_DF), libinterp/corefcn/defaults.h, libinterp/corefcn/graphics.h, libinterp/corefcn/graphics-props.cc, libinterp/corefcn/oct-errno.cc, libinterp/corefcn/mxarray.h, libinterp/corefcn/oct-tex-lexer.ll): Depend on timestamp file to ensure destination directory exists. (libinterp/corefcn/graphics.h, libinterp/corefcn/graphics-props.cc, libinterp/corefcn/oct-errno.cc, libinterp/corefcn/oct-tex-lexer.ll, libinterp/corefcn/oct-tex-symbols.cc): Use mv instead of move-if-change. (libinterp/corefcn/mxarray.h): Use script to substitute values. Depend on libinterp/corefcn/mxarray.in.h instead of Makefile * libinterp/corefcn/toplev.cc (octave_config_info): Don't include ALL_CFLAGS, ALL_CXXFLAGS, ALL_FFLAGS, ALL_LDFLAGS, of LIBFLAGS in the list. * libinterp/module.mk ($(SRC_DEF_FILES)): Don't depend on Makefile. (libinterp/build-env.cc, libinterp/build-env-features.cc, libinterp/builtins.cc, libinterp/builtin-defun-decls.h, libinterp/dldfcn/PKG_ADD, libinterp/.DOCSTRINGS): Depend on timestamp file to ensure destination directory exists. (libinterp/build-env.cc): Depend on build-aux/subst-config-vals.sh instead of Makefile. (libinterp/version.h): Use script to substitute values. Depend on build-aux/mk-version-h.sh instead of libinterp/version.in.h. * liboctave/cruft/module.mk (liboctave/cruft/cruft.def): Depend on timestamp file to ensure destination directory exists. (liboctave_DISTCLEANFILES): Remove liboctave/cruft/mkf77def from the list. (liboctave_EXTRA_DIST): Don't add liboctave/cruft/mkf77def.in to the list. * liboctave/cruft/ranlib/module.mk (liboctave/cruft/ranlib/ranlib.def): Depend on timestamp file to ensure destination directory exists. * liboctave/cruft/slatec-fn/module.mk (liboctave/cruft/slatec-fn/erfc.f, liboctave/cruft/slatec-fn/derfc.f): Depend on timestamp file to ensure destination directory exists. Use script to substitute values. Depend on build-aux/subst-f77-isnan-macro.sh instead of Makefile. (do-subst-isnan-macro): Delete macro. * scripts/module.mk (GEN_FCN_FILES_TEMPLATE): Use simple-filter-rule to execute build-aux/subst-config-vals.sh. Depend on build-aux/subst-config-vals.sh instead of Makefile. (scripts/.DOCSTRINGS): Don't depend on Makefile. Do depend on timestamp file to ensure destination directory exists. * src/module.mk (src/$(host_triplet)-mkoctfile.cc, src/$(host_triplet)-octave-config.cc): Depend on build-aux/subst-cross-config-vals.sh instead of Makefile. (src/octave-config.cc, src/mkoctfile.cc, src/main.cc): Depend on build-aux/subst-default-vals.sh instead of Makefile.

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/build-aux/subst-script-vals.in.sh	Fri Mar 04 12:51:00 2016 -0500
@@ -0,0 +1,62 @@
+#! /bin/sh
+#
+# Copyright (C) 2016 John W. Eaton
+#
+# This file is part of Octave.
+#
+# Octave 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 3 of the License, or (at
+# your option) any later version.
+#
+# Octave 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 Octave; see the file COPYING.  If not, see
+# <http://www.gnu.org/licenses/>.
+
+: ${SED=@SED@}
+
+## Use two steps so that we can interpolate values without having to
+## determine the order in which to set variable values.
+
+## These must use ' so that embedded variables are not interpolated
+## (the values they reference may not be defined before they are used).
+
+AWK="@AWK@"
+FIND="@FIND@"
+SED="@SED@"
+ADDRESS_SANITIZER_OPTIONS="@ADDRESS_SANITIZER_OPTIONS@"
+abs_top_srcdir="@abs_top_srcdir@"
+abs_top_builddir="@abs_top_builddir@"
+
+## These must use " so that embedded variables are interpolated.
+
+## Is there a better way?
+
+function expand_var ()
+{
+  eval tmp="\$$1"
+  while echo "$tmp" | grep '\${[A-Za-z_][A-Za-z0-9_]*}' > /dev/null; do
+    eval tmp="$tmp"
+  done
+  eval $1="'$tmp'"
+}
+
+expand_var AWK
+expand_var FIND
+expand_var SED
+expand_var ADDRESS_SANITIZER_OPTIONS
+expand_var abs_top_srcdir
+expand_var abs_top_builddir
+
+$SED \
+  -e "s|%AWK%|${AWK}|g" \
+  -e "s|%FIND%|${FIND}|g" \
+  -e "s|%SED%|${SED}|g" \
+  -e "s|%ADDRESS_SANITIZER_OPTIONS%|${ADDRESS_SANITIZER_OPTIONS}|g" \
+  -e "s|%abs_top_srcdir%|${abs_top_srcdir}|" \
+  -e "s|%builddir%|${abs_top_builddir}|"