-New in 1.12.4:
+New in 1.12.5:
* WARNING: Future backward-incompatibilities!
giving more useful warnings than a bare "command not found" from a
make recipe would.
+Bugs fixed in 1.12.5:
+
+* Long-standing bugs:
+
+ - Automake no longer generates spurious remake rules invoking autoheader
+ to regenerate the template corresponding to header files specified after
+ the first one in AC_CONFIG_HEADERS (automake bug#12495).
+
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+New in 1.12.4:
+
* Warnings and deprecations:
- Warnings in the 'obsolete' category are enabled by default both in
macro.
@item AC_CONFIG_HEADERS
-Automake will generate rules to rebuild these headers. Older versions
-of Automake required the use of @code{AM_CONFIG_HEADER}
-(@pxref{Macros}); this is no longer the case.
+Automake will generate rules to rebuild these headers from the
+corresponding templates (usually, the template for a @file{foo.h}
+header being @file{foo.h.in}). Older versions of Automake required
+the use of @code{AM_CONFIG_HEADER} (@pxref{Macros}); this is no
+longer the case.
As with @code{AC_CONFIG_FILES} (@pxref{Requirements}), parts of the
specification using shell variables will be ignored as far as
--- /dev/null
+#! /bin/sh
+# Copyright (C) 2012 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/>.
+
+# Related to automake bug#12495: Automake shouldn't generate useless
+# remake rules for AC_CONFIG_HEADERS arguments after the first one,
+# not even when subdirs are involved.
+
+. ./defs || exit 1
+
+cat >> configure.ac << 'END'
+AC_CONFIG_HEADERS([a.h b.h sub/c.h])
+AC_CONFIG_FILES([sub/Makefile])
+AC_OUTPUT
+END
+
+mkdir sub
+echo SUBDIRS = sub > Makefile.am
+: > sub/Makefile.am
+
+$ACLOCAL
+$AUTOCONF
+$AUTOHEADER
+# Even if an AC_CONFIG_HEADERS invocation is passed several files in
+# the first argument, only the first one is considered by autoheader
+# for automatic generation. Otherwise, the present test case would
+test -f a.h.in && test ! -f c.h.in && test ! -f sub/c.h.in \
+ || fatal_ "unexpected autoheader behavior with multiple" \
+ "AC_CONFIG_HEADERS arguments"
+# Automake should require the missing headers though.
+AUTOMAKE_fails -Wno-error -Wnone
+grep "^configure\.ac:4:.* required file 'b.h.in' not found" stderr
+grep "^configure\.ac:4:.* required file 'sub/c.h.in' not found" stderr
+: > b.h.in
+: > sub/c.h.in
+$AUTOMAKE
+
+./configure
+
+# Automake should regenerate this.
+grep '^$(srcdir)/a\.h\.in:' Makefile.in
+# But not these.
+grep '[bc]\.h\.in.*:' Makefile.in sub/Makefile.in && exit 1
+
+test -f a.h && test -f b.h && test -f sub/c.h \
+ || fatal_ "unexpected ./configure behavior with multiple" \
+ "AC_CONFIG_HEADERS arguments"
+
+rm -f a.h.in a.h
+$MAKE
+test -f a.h.in
+test -f a.h
+
+ocwd=$(pwd)
+for x in b c; do
+ test $x = b || cd sub
+ rm -f $x.h.in
+ $MAKE $x.h.in 2>stderr && { cat stderr >&2; exit 1; }
+ cat stderr >&2
+ test ! -f $x.h.in
+ if using_gmake; then
+ grep "No rule to make target [\`\"']$x\.h\.in[\`\"']" stderr
+ fi
+ : > $x.h.in
+ cd "$ocwd" || fatal_ "cannot chdir back"
+done
+
+:
projects / platform / upstream / automake.git / commitdiff