Patch to move hardcoded language testsuite targets

["Joseph S. Myers" <jsm at polyomino dot org dot uk>]

This patch moves the hardcoding of language testsuite targets (one of
the residual bugs limiting the ability to drop in front end
directories) out of gcc/Makefile.in, in the way indicated by Mark
Mitchell in <http://gcc.gnu.org/ml/gcc-patches/2003-08/msg02061.html>.
I haven't touched the QMTest parts since Mark indicated that would be
done when the QMTest support is ready to test more than G++
<http://gcc.gnu.org/ml/gcc-patches/2003-06/msg00438.html>.  Note that
some languages (Ada and treelang) have their own test rules already in
the subdirectory Make-lang.in files, rather than using the common
Dejagnu rule, so those languages aren't affected beyond removing a now
obsolete comment about the centralised rules in treelang/Make-lang.in.

Bootstrapped with no regressions on i686-pc-linux-gnu.  OK to commit?

gcc:
2003-11-14  Joseph S. Myers  <jsm@polyomino.org.uk>

	* Makefile.in (lang_checks): Add.
	(check-c++, check-f77, check-java, check-g++, check=g77,
	check-objc): Remove hardcoded targets.
	* doc/sourcebuild.texi: Document testsuite hooks.

gcc/cp:
2003-11-14  Joseph S. Myers  <jsm@polyomino.org.uk>

	* Make-lang.in (check-g++, lang_checks): Add.

gcc/f:
2003-11-14  Joseph S. Myers  <jsm@polyomino.org.uk>

	* Make-lang.in (check-f77, lang_checks): Add.

gcc/java:
2003-11-14  Joseph S. Myers  <jsm@polyomino.org.uk>

	* Make-lang.in (check-java): Add.

gcc/objc:
2003-11-14  Joseph S. Myers  <jsm@polyomino.org.uk>

	* Make-lang.in (check-objc, lang_checks): Add.

gcc/treelang:
2003-11-14  Joseph S. Myers  <jsm@polyomino.org.uk>

	* Make-lang.in: Remove obsolete comment.

diff -ruN GCC.orig/gcc/Makefile.in GCC/gcc/Makefile.in
--- GCC.orig/gcc/Makefile.in	2003-11-10 10:23:58.000000000 +0000
+++ GCC/gcc/Makefile.in	2003-11-14 19:43:05.000000000 +0000
@@ -380,6 +380,7 @@
 xm_file_list=@xm_file_list@
 xm_include_list=@xm_include_list@
 xm_defines=@xm_defines@
+lang_checks=check-gcc
 lang_opt_files=@lang_opt_files@ $(srcdir)/c.opt $(srcdir)/common.opt
 lang_specs_files=@lang_specs_files@
 lang_tree_files=@lang_tree_files@
@@ -3253,10 +3254,6 @@
 
 CHECK_TARGETS = check-gcc @check_languages@
 
-check-c++ : check-g++
-check-f77 : check-g77
-check-java :
-
 check: $(CHECK_TARGETS)
 
 # The idea is to parallelize testing of multilibs, for example:
@@ -3264,7 +3261,8 @@
 # will run 3 concurrent sessions of check-gcc, eventually testing
 # all 10 combinations.  GNU make is required, as is a shell that expands
 # alternations within braces.
-check-gcc//% check-g++//% check-g77//% check-objc//%: site.exp
+lang_checks_parallel = $(lang_checks:=//%)
+$(lang_checks_parallel): site.exp
 	target=`echo "$@" | sed 's,//.*,,'`; \
 	variant=`echo "$@" | sed 's,^[^/]*//,,'`; \
 	vardots=`echo "$$variant" | sed 's,/,.,g'`; \
@@ -3279,7 +3277,7 @@
 	-rm -f $@
 	sed '/set tmpdir/ s|testsuite|$(TESTSUITEDIR)|' < site.exp > $@
 
-check-g++ check-gcc check-g77 check-objc: check-% : $(TESTSUITEDIR)/site.exp
+$(lang_checks): check-% : $(TESTSUITEDIR)/site.exp
 	-(rootme=`${PWD_COMMAND}`; export rootme; \
 	srcdir=`cd ${srcdir}; ${PWD_COMMAND}` ; export srcdir ; \
 	cd $(TESTSUITEDIR); \
diff -ruN GCC.orig/gcc/cp/Make-lang.in GCC/gcc/cp/Make-lang.in
--- GCC.orig/gcc/cp/Make-lang.in	2003-10-20 21:47:10.000000000 +0000
+++ GCC/gcc/cp/Make-lang.in	2003-11-14 19:44:03.000000000 +0000
@@ -118,6 +118,9 @@
 
 generated-manpages:: cp/g++.1
 
+check-c++ : check-g++
+lang_checks += check-g++
+
 #
 # Install hooks:
 # cc1plus is installed elsewhere as part of $(COMPILERS).
diff -ruN GCC.orig/gcc/doc/sourcebuild.texi GCC/gcc/doc/sourcebuild.texi
--- GCC.orig/gcc/doc/sourcebuild.texi	2003-10-28 10:10:45.000000000 +0000
+++ GCC/gcc/doc/sourcebuild.texi	2003-11-14 19:50:13.000000000 +0000
@@ -551,7 +551,9 @@
 deprecated).  Some hooks are defined by using a double-colon rule for
 @code{@var{hook}}, rather than by using a target of form
 @code{@var{lang}.@var{hook}}.  These hooks are called ``double-colon
-hooks'' below.
+hooks'' below.  It also adds any testsuite targets that can use the
+standard rule in @file{gcc/Makefile.in} to the variable
+@code{lang_checks}.
 
 @table @code
 @item all.build
diff -ruN GCC.orig/gcc/f/Make-lang.in GCC/gcc/f/Make-lang.in
--- GCC.orig/gcc/f/Make-lang.in	2003-11-04 12:55:02.000000000 +0000
+++ GCC/gcc/f/Make-lang.in	2003-11-14 19:44:16.000000000 +0000
@@ -152,6 +152,9 @@
 dvi:: $(docobjdir)/g77.dvi
 generated-manpages:: $(docobjdir)/g77.1
 
+check-f77 : check-g77
+lang_checks += check-g77
+
 # g77 documentation.
 $(docobjdir)/g77.info: $(srcdir)/f/g77.texi $(srcdir)/f/bugs.texi \
 		$(srcdir)/f/ffe.texi $(srcdir)/f/invoke.texi \
diff -ruN GCC.orig/gcc/java/Make-lang.in GCC/gcc/java/Make-lang.in
--- GCC.orig/gcc/java/Make-lang.in	2003-11-04 12:55:02.000000000 +0000
+++ GCC/gcc/java/Make-lang.in	2003-11-14 19:39:18.000000000 +0000
@@ -167,6 +167,8 @@
 	$(docobjdir)/gij.1 $(docobjdir)/jv-convert.1 \
 	$(docobjdir)/rmic.1 $(docobjdir)/rmiregistry.1
 
+check-java :
+
 # Install hooks:
 # jc1, gcj, jvgenmain, and gcjh are installed elsewhere as part
 # of $(COMPILERS).
diff -ruN GCC.orig/gcc/objc/Make-lang.in GCC/gcc/objc/Make-lang.in
--- GCC.orig/gcc/objc/Make-lang.in	2003-10-20 21:47:14.000000000 +0000
+++ GCC/gcc/objc/Make-lang.in	2003-11-14 19:44:36.000000000 +0000
@@ -106,6 +106,8 @@
 objc.tags: force
 	cd $(srcdir)/objc; etags *.y *.c *.h
 
+lang_checks += check-objc
+
 #
 # Install hooks:
 # cc1obj is installed elsewhere as part of $(COMPILERS).
diff -ruN GCC.orig/gcc/treelang/Make-lang.in GCC/gcc/treelang/Make-lang.in
--- GCC.orig/gcc/treelang/Make-lang.in	2003-11-04 12:55:04.000000000 +0000
+++ GCC/gcc/treelang/Make-lang.in	2003-11-14 19:46:43.000000000 +0000
@@ -271,7 +271,6 @@
 #	not here yet sorry not sure if this is needed or not???
 
 # test hook
-# the other languages are hard coded in the main makefile.in - that seems to be wrong
 
 check-treelang: treelang.check
 

-- 
Joseph S. Myers
jsm@polyomino.org.uk