Merge branch 'maint'

* maint:
  depcomp: support tcc (Tiny C Compiler)
  tests: workaround for automatic linker determination and conditionals
  info: allow user to inhibit pruning of '${infodir}/dir'
  vala tests: fix spurious failures with older valac (<= 0.7.2)
  tests: fix a timestamp issue, and other minor buglets
  tests: fix spurious failure with older autoconf
  build: remove duplicated entries in $(TESTS)

+ Extra non-trivia edits:
* tests/link_cond.test: Use 'configure.ac', not 'configure.in'.

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

11 files changed, 176 insertions, 39 deletions

diff --git a/NEWS b/NEWS
index 7f6b923b2..fd8f38c65 100644
--- a/NEWS
+++ b/NEWS
@@ -271,6 +271,11 @@ New in 1.11.3:
 
 * Miscellaneous changes:
 
+  - There is an initial, experimental support for automatic dependency
+    tracking with tcc (the Tiny C Compiler).  Its associated depmode is
+    currently recognized as "icc" (but this and other details are likely
+    to change in future versions).
+
   - Automatic dependency tracking now works also with the IBM XL C/C++
     compilers, thanks to the new new depmode 'xlc'.
 
@@ -370,9 +375,9 @@ New in 1.11.2:
     file generated by automake-provided rules by defining the special make
     variable `$(EXTRA_DEJAGNU_SITE_CONFIG)'.
 
-  - The `install-info' rule can now be instructed not to create/update
-    the `${infodir}/dir' file, by exporting the new environment variable
-    `AM_UPDATE_INFO_DIR' to the value "no".
+  - The `install-info' and `uninstall-info' rules can now be instructed
+    not to create/update the `${infodir}/dir' file, by exporting the new
+    environment variable `AM_UPDATE_INFO_DIR' to the value "no".
 
 Bugs fixed in 1.11.2:
   - For programs and libraries, automake now detects EXTRA_foo_DEPENDENCIES
diff --git a/THANKS b/THANKS
index 0973d0c6d..bfa94d2d0 100644
--- a/THANKS
+++ b/THANKS
@@ -152,6 +152,7 @@ James Youngman		jay@gnu.org
 Jan Engelhardt		jengelh@medozas.de
 Janos Farkas		chexum@shadow.banki.hu
 Jared Davis		abiword@aiksaurus.com
+Jason DeVinney		jasondevinney@gmail.com
 Jason Duell		jcduell@lbl.gov
 Jason Molenda		crash@cygnus.co.jp
 Javier Jardón		jjardon@gnome.org
diff --git a/doc/automake.texi b/doc/automake.texi
index 7d548c7da..90a271cd9 100644
--- a/doc/automake.texi
+++ b/doc/automake.texi
@@ -7906,11 +7906,11 @@ be prevented via the @code{no-installinfo} option.  In this case,
 request this explicitly using @samp{make install-info}.
 
 @vindex AM_UPDATE_INFO_DIR
-By default, @code{make install-info} will try to run the
-@command{install-info} program (if available) to update (or create)
-the @file{@code{$@{infodir@}}/dir} index.  If this is undesired, it
-can be prevented by exporting the @code{AM_UPDATE_INFO_DIR} variable
-to "@code{no}".
+By default, @code{make install-info} and @code{make install-info}
+will try to run the @command{install-info} program (if available)
+to update (or create) the @file{@code{$@{infodir@}}/dir} index.
+If this is undesired, it can be prevented by exporting the
+@code{AM_UPDATE_INFO_DIR} variable to "@code{no}".
 
 The following variables are used by the Texinfo build rules.
 
diff --git a/lib/am/texinfos.am b/lib/am/texinfos.am
index 8e75ef3b9..42787c778 100644
--- a/lib/am/texinfos.am
+++ b/lib/am/texinfos.am
@@ -94,6 +94,18 @@ endif ! %?LOCAL-TEXIS%
 ## Installing.  ##
 ## ------------ ##
 
+## Some code should be run only if install-info actually exists, and
+## if the user doesn't request it not to be run (through the
+## 'AM_UPDATE_INFO_DIR' environment variable).  See automake bug#9773
+## and Debian Bug#543992.
+if %?FIRST%
+am__can_run_installinfo = \
+  case $$AM_UPDATE_INFO_DIR in \
+    n|no|NO) false;; \
+    *) (install-info --version) >/dev/null 2>&1;; \
+  esac
+endif
+
 ## Look in both . and srcdir because the info pages might have been
 ## rebuilt in the build directory.  Can't cd to srcdir; that might
 ## break a possible install-sh reference.
@@ -222,16 +234,7 @@ install-info-am: $(INFO_DEPS)
 	  echo " $(INSTALL_DATA) $$files '$(DESTDIR)$(infodir)'"; \
 	  $(INSTALL_DATA) $$files "$(DESTDIR)$(infodir)" || exit $$?; done
 	@$(POST_INSTALL)
-## Only run this code if install-info actually exists, and if the user
-## doesn't request it not to be run (through the 'AM_UPDATE_INFO_DIR'
-## environment variable).  See automake bug#9773 and Debian Bug#543992.
-	@am__run_installinfo=yes; \
-	case $$AM_UPDATE_INFO_DIR in \
-	  n|no|NO) am__run_installinfo=no;; \
-	  *) (install-info --version) >/dev/null 2>&1 \
-	       || am__run_installinfo=no;; \
-	esac; \
-	if test $$am__run_installinfo = yes; then \
+	@if $(am__can_run_installinfo); then \
 	  list='$(INFO_DEPS)'; test -n "$(infodir)" || list=; \
 	  for file in $$list; do \
 ## Strip directory
@@ -322,9 +325,7 @@ uninstall-info-am:
 	@$(PRE_UNINSTALL)
 ## Run two loops here so that we can handle PRE_UNINSTALL and
 ## NORMAL_UNINSTALL correctly.
-	@if test -d '$(DESTDIR)$(infodir)' && \
-	    (install-info --version && \
-	     install-info --version 2>&1 | sed 1q | grep -i -v debian) >/dev/null 2>&1; then \
+	@if test -d '$(DESTDIR)$(infodir)' && $(am__can_run_installinfo); then \
 	  list='$(INFO_DEPS)'; \
 	  for file in $$list; do \
 	    relfile=`echo "$$file" | sed 's|^.*/||'`; \
diff --git a/lib/depcomp b/lib/depcomp
index 81e64f6bf..debb6ffa3 100755
--- a/lib/depcomp
+++ b/lib/depcomp
@@ -1,7 +1,7 @@
 #! /bin/sh
 # depcomp - compile a program generating dependencies as side-effects
 
-scriptversion=2012-03-12.15; # UTC
+scriptversion=2012-03-27.16; # UTC
 
 # Copyright (C) 1999-2012 Free Software Foundation, Inc.
 
@@ -288,23 +288,26 @@ aix)
   ;;
 
 icc)
-  # Intel's C compiler understands '-MD -MF file'.  However on
-  #    icc -MD -MF foo.d -c -o sub/foo.o sub/foo.c
+  # Intel's C compiler anf tcc (Tiny C Compiler) understand '-MD -MF file'.
+  # However on
+  #    $CC -MD -MF foo.d -c -o sub/foo.o sub/foo.c
   # ICC 7.0 will fill foo.d with something like
   #    foo.o: sub/foo.c
   #    foo.o: sub/foo.h
-  # which is wrong.  We want:
+  # which is wrong.  We want
   #    sub/foo.o: sub/foo.c
   #    sub/foo.o: sub/foo.h
   #    sub/foo.c:
   #    sub/foo.h:
   # ICC 7.1 will output
   #    foo.o: sub/foo.c sub/foo.h
-  # and will wrap long lines using \ :
+  # and will wrap long lines using '\':
   #    foo.o: sub/foo.c ... \
   #     sub/foo.h ... \
   #     ...
-
+  # tcc 0.9.26 (FIXME still under development at the moment of writing)
+  # will emit a similar output, but also prepend the continuation lines
+  # with horizontal tabulation characters.
   "$@" -MD -MF "$tmpdepfile"
   stat=$?
   if test $stat -eq 0; then :
@@ -317,11 +320,17 @@ icc)
   # or 'foo.o: dep1.h dep2.h \', or ' dep3.h dep4.h \'.
   # Do two passes, one to just change these to
   # '$object: dependent.h' and one to simply 'dependent.h:'.
-  sed "s,^[^:]*:,$object :," < "$tmpdepfile" > "$depfile"
-  # Some versions of the HPUX 10.20 sed can't process this invocation
-  # correctly.  Breaking it into two sed invocations is a workaround.
-  sed 's,^[^:]*: \(.*\)$,\1,;s/^\\$//;/^$/d;/:$/d' < "$tmpdepfile" |
-    sed -e 's/$/ :/' >> "$depfile"
+  sed -e "s/^[ $tab][ $tab]*/  /" -e "s,^[^:]*:,$object :," \
+    < "$tmpdepfile" > "$depfile"
+  sed '
+    s/[ '"$tab"'][ '"$tab"']*/ /g
+    s/^ *//
+    s/ *\\*$//
+    s/^[^:]*: *//
+    /^$/d
+    /:$/d
+    s/$/ :/
+  ' < "$tmpdepfile" >> "$depfile"
   rm -f "$tmpdepfile"
   ;;
 
diff --git a/tests/install-info-dir.test b/tests/install-info-dir.test
index d7a0e7f91..c76f424ad 100755
--- a/tests/install-info-dir.test
+++ b/tests/install-info-dir.test
@@ -76,12 +76,28 @@ fi
 # by default (if the 'install-info' program is available).
 # This should happen in a normal as well as in a DESTDIR installation.
 if test $have_installinfo = yes; then
+
   $MAKE install-info
   test -f $instdir/info/foo.info
   test -f $instdir/info/dir
+  $FGREP 'Does nothing at all, but has a nice name' $instdir/info/dir
+
+  $MAKE uninstall
+  test ! -f $instdir/info/foo.info
+  $FGREP 'but has a nice name' $instdir/info/dir && Exit 1
+
+  dir="$destdir/$cwd/$instdir/info"
+
   $MAKE DESTDIR="$cwd/$destdir" install-info
-  test -f "$destdir/$cwd/$instdir"/info/foo.info
-  test -f "$destdir/$cwd/$instdir"/info/dir
+  test -f "$dir"/foo.info
+  test -f "$dir"/dir
+  $FGREP 'Does nothing at all, but has a nice name' "$dir"/dir
+  $MAKE DESTDIR="$cwd/$destdir" uninstall
+  test ! -f "$dir"/foo.info
+  $FGREP 'but has a nice name' "$dir"/dir && Exit 1
+
+  unset dir
+
 fi
 
 rm -rf $instdir $destdir
@@ -119,6 +135,11 @@ END
   $MAKE install-info
   test -f $instdir/info/foo.info
   test -f $instdir/info/dir
+  $MAKE uninstall
+  test ! -f $instdir/info/foo.info
+  test -f $instdir/info/dir
+  $FGREP 'but has a nice name' $instdir/info/dir && Exit 1
+  : For shells with busted 'set -e'.
 fi
 
 rm -rf $instdir bin/install-info
@@ -132,15 +153,24 @@ for val in no NO n; do
   test -f $instdir/info/foo.info
   test ! -f $instdir/info/dir
 done
+
+$MAKE install-info
+chmod a-w $instdir/info/dir
+for val in no NO n; do
+  env AM_UPDATE_INFO_DIR="$val" $MAKE uninstall
+  $FGREP 'Does nothing at all, but has a nice name' $instdir/info/dir
+done
+
 if test $have_installinfo = yes; then
   for val in 'yes' 'who cares!'; do
     rm -rf $instdir
     env AM_UPDATE_INFO_DIR="$val" $MAKE install-info
     test -f $instdir/info/foo.info
     test -f $instdir/info/dir
+    env AM_UPDATE_INFO_DIR="$val" $MAKE uninstall
+    test ! -f $instdir/info/foo.info
+    $FGREP 'but has a nice name' $instdir/info/dir && Exit 1
   done
 fi
 
-rm -rf $instdir
-
 :
diff --git a/tests/link_cond.test b/tests/link_cond.test
new file mode 100755
index 000000000..7b9fd5a3c
--- /dev/null
+++ b/tests/link_cond.test
@@ -0,0 +1,90 @@
+#! /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/>.
+
+# Test that automatic determination of the linker works well with
+# conditional use of languages in a single program.
+# This currently doesn't truly work, but we have an easy workaround
+# at least, that is tested here.
+# See automake bug#11089.
+
+required='cc c++'
+. ./defs || Exit 1
+
+set -e
+
+cat >> configure.ac << 'END'
+AC_PROG_CC
+AC_PROG_CXX
+AM_CONDITIONAL([HAVE_CXX], [test $have_cxx = yes])
+AC_OUTPUT
+END
+
+cat > Makefile.am << 'END'
+bin_PROGRAMS = foo
+if HAVE_CXX
+foo_SOURCES = more.c++
+else
+foo_SOURCES = less.c
+endif
+## FIXME: ideally, this workaround shouldn't be needed.
+if HAVE_CXX
+foo_LINK = $(CXXLINK)
+else
+foo_LINK = $(LINK)
+endif
+END
+
+$ACLOCAL
+$AUTOMAKE
+$AUTOCONF
+
+rm -f *.c++
+cat > less.c <<'END'
+/* Valid C but deliberately invalid C++ */
+main ()
+{
+  int new = 0;
+  return new;
+}
+END
+
+./configure have_cxx=no
+CXX=false $MAKE -e
+
+# Sanity check.
+rm -f foo foo.exe
+CC=false $MAKE -e && Exit 99
+
+$MAKE distclean
+
+rm -f *.c
+cat > more.c++ <<'END'
+/* Valid C++ but deliberately invalid C */
+using namespace std;
+int main (void)
+{
+  return 0;
+}
+END
+
+./configure have_cxx=yes
+CC=false $MAKE -e
+
+# Sanity check.
+rm -f foo foo.exe
+CXX=false $MAKE -e && Exit 99
+
+:
diff --git a/tests/list-of-tests.mk b/tests/list-of-tests.mk
index af114adf6..de022a2d3 100644
--- a/tests/list-of-tests.mk
+++ b/tests/list-of-tests.mk
@@ -612,6 +612,7 @@ libtoo11.test \
 license.test \
 license2.test \
 link_c_cxx.test \
+link_cond.test \
 link_dist.test \
 link_f90_only.test \
 link_fc.test \
diff --git a/tests/vala-mix.test b/tests/vala-mix.test
index acf47d989..58ab50028 100755
--- a/tests/vala-mix.test
+++ b/tests/vala-mix.test
@@ -22,7 +22,7 @@ required='valac cc GNUmake'
 cat >> configure.ac <<'END'
 AC_PROG_CC
 AM_PROG_CC_C_O
-AM_PROG_VALAC
+AM_PROG_VALAC([0.7.3])
 AC_OUTPUT
 END
 
diff --git a/tests/vala-mix2.test b/tests/vala-mix2.test
index e9a0aa4ea..516246724 100755
--- a/tests/vala-mix2.test
+++ b/tests/vala-mix2.test
@@ -23,7 +23,7 @@ required='valac cc c++ GNUmake'
 cat >> configure.ac <<'END'
 AC_PROG_CC
 AC_PROG_CXX
-AM_PROG_VALAC
+AM_PROG_VALAC([0.7.3])
 AC_OUTPUT
 END
 
diff --git a/tests/vala-vpath.test b/tests/vala-vpath.test
index 636e66ec6..a968afa0e 100755
--- a/tests/vala-vpath.test
+++ b/tests/vala-vpath.test
@@ -23,7 +23,7 @@ required="valac GNUmake"
 cat >> configure.ac << 'END'
 AC_CONFIG_SRCDIR([hello.vala])
 AC_PROG_CC
-AM_PROG_VALAC([0.7])
+AM_PROG_VALAC([0.7.3])
 AC_OUTPUT
 END