Rust: Move 'libformat_parser' build into libgrust

Addresses Rust-GCC#2883.

	contrib/
	* gcc_update (files_and_dependencies): Update for
	'libformat_parser' in libgrust.
	gcc/rust/
	* Make-lang.in (LIBFORMAT_PARSER): Point to 'libformat_parser'
	build in libgrust.
	(%.toml:, $(LIBFORMAT_PARSER):): Remove.
	libgrust/
	* libformat_parser/Makefile.am: New.
	* Makefile.am [!TARGET_LIBRARY] (SUBDIRS): Add 'libformat_parser'.
	* configure.ac: Handle it.
	(TARGET_LIBRARY): New 'AM_CONDITIONAL'.
	* libformat_parser/Makefile.in: Generate.
	* Makefile.in: Regenerate.
	* configure: Likewise.

contrib/gcc_update

@@ -156,6 +156,7 @@ libgomp/config.h.in: libgomp/configure.ac libgomp/aclocal.m4
 libgrust/Makefile.in: libgrust/Makefile.am libgrust/aclocal.m4
 libgrust/aclocal.m4: libgrust/configure.ac
 libgrust/configure: libgrust/configure.ac libgrust/aclocal.m4
+libgrust/libformat_parser/Makefile.in: libgrust/libformat_parser/Makefile.am libgrust/aclocal.m4
 libgrust/libproc_macro_internal/Makefile.in: libgrust/libproc_macro_internal/Makefile.am libgrust/aclocal.m4
 libitm/aclocal.m4: libitm/configure.ac libitm/acinclude.m4
 libitm/Makefile.in: libitm/Makefile.am libitm/aclocal.m4

gcc/rust/Make-lang.in

@@ -226,8 +226,7 @@ RUST_ALL_OBJS = $(GRS_OBJS) $(RUST_TARGET_OBJS)
 rust_OBJS = $(RUST_ALL_OBJS) rust/rustspec.o
 
 LIBPROC_MACRO_INTERNAL = ../libgrust/libproc_macro_internal/libproc_macro_internal.a
-LIBFORMAT_PARSER_D = rust/libformat_parser
-LIBFORMAT_PARSER = $(LIBFORMAT_PARSER_D)/debug/liblibformat_parser.a
+LIBFORMAT_PARSER = ../libgrust/libformat_parser/debug/liblibformat_parser.a
 
 # The compiler itself is called crab1
 crab1$(exeext): $(RUST_ALL_OBJS) attribs.o $(BACKEND) $(LIBDEPS) $(LIBPROC_MACRO_INTERNAL) $(LIBFORMAT_PARSER) $(rust.prev)
@@ -419,19 +418,6 @@ rust/%.o: rust/lex/%.cc
 	$(COMPILE) $(RUST_CXXFLAGS) $(RUST_INCLUDES) $<
 	$(POSTCOMPILE)
 
-%.toml:
-	echo $@
-
-# TODO: Improve `cargo` invocation with host specific flags, possibly creating a $(CARGO) variable?
-$(LIBFORMAT_PARSER): $(srcdir)/../libgrust/libformat_parser/Cargo.toml $(wildcard $(srcdir)/../libgrust/libformat_parser/src/*.rs)
-	cargo \
-	  --config $(srcdir)/../libgrust/libformat_parser/.cargo/config \
-	  build \
-	    --offline \
-	    --target-dir $(LIBFORMAT_PARSER_D) \
-	    --manifest-path $(srcdir)/../libgrust/libformat_parser/Cargo.toml \
-	    # FIXME: Not always '--release', right?
-
 # build all rust/parse files in rust folder, add cross-folder includes
 rust/%.o: rust/parse/%.cc
 	$(COMPILE) $(RUST_CXXFLAGS) $(RUST_INCLUDES) $<

libgrust/Makefile.am

@@ -11,7 +11,11 @@ TOP_GCCDIR := $(shell cd $(top_srcdir) && cd .. && pwd)
 GCC_DIR = $(TOP_GCCDIR)/gcc
 RUST_SRC = $(GCC_DIR)/rust
 
-SUBDIRS = libproc_macro_internal
+SUBDIRS =
+if !TARGET_LIBRARY
+SUBDIRS += libformat_parser
+endif
+SUBDIRS += libproc_macro_internal
 
 RUST_BUILDDIR := $(shell pwd)
 

libgrust/Makefile.in

@@ -88,6 +88,7 @@ POST_UNINSTALL = :
 build_triplet = @build@
 host_triplet = @host@
 target_triplet = @target@
+@TARGET_LIBRARY_FALSE@am__append_1 = libformat_parser
 subdir = .
 ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
 am__aclocal_m4_deps = $(top_srcdir)/../config/acx.m4 \
@@ -165,7 +166,7 @@ am__define_uniq_tagged_files = \
 ETAGS = etags
 CTAGS = ctags
 CSCOPE = cscope
-DIST_SUBDIRS = $(SUBDIRS)
+DIST_SUBDIRS = libformat_parser libproc_macro_internal
 ACLOCAL = @ACLOCAL@
 AMTAR = @AMTAR@
 AM_DEFAULT_VERBOSITY = @AM_DEFAULT_VERBOSITY@
@@ -308,7 +309,7 @@ AM_CFLAGS = -I $(srcdir)/../libgcc -I $(MULTIBUILDTOP)../../gcc/include
 TOP_GCCDIR := $(shell cd $(top_srcdir) && cd .. && pwd)
 GCC_DIR = $(TOP_GCCDIR)/gcc
 RUST_SRC = $(GCC_DIR)/rust
-SUBDIRS = libproc_macro_internal
+SUBDIRS = $(am__append_1) libproc_macro_internal
 RUST_BUILDDIR := $(shell pwd)
 
 # Work around what appears to be a GNU make bug handling MAKEFLAGS

libgrust/configure

@@ -634,6 +634,8 @@ am__EXEEXT_TRUE
 LTLIBOBJS
 LIBOBJS
 get_gcc_base_ver
+TARGET_LIBRARY_FALSE
+TARGET_LIBRARY_TRUE
 toolexeclibdir
 toolexecdir
 target_subdir
@@ -12655,7 +12657,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 12658 "configure"
+#line 12660 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -12761,7 +12763,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 12764 "configure"
+#line 12766 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -16192,6 +16194,17 @@ esac
 
 
 
+ if test -n "$with_target_subdir"; then
+  TARGET_LIBRARY_TRUE=
+  TARGET_LIBRARY_FALSE='#'
+else
+  TARGET_LIBRARY_TRUE='#'
+  TARGET_LIBRARY_FALSE=
+fi
+
+
+ac_config_files="$ac_config_files libformat_parser/Makefile"
+
 
 ac_config_files="$ac_config_files libproc_macro_internal/Makefile"
 
@@ -16398,6 +16411,10 @@ if test -z "${am__fastdepCCAS_TRUE}" && test -z "${am__fastdepCCAS_FALSE}"; then
   as_fn_error $? "conditional \"am__fastdepCCAS\" was never defined.
 Usually this means the macro was only invoked conditionally." "$LINENO" 5
 fi
+if test -z "${TARGET_LIBRARY_TRUE}" && test -z "${TARGET_LIBRARY_FALSE}"; then
+  as_fn_error $? "conditional \"TARGET_LIBRARY\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
 
 : "${CONFIG_STATUS=./config.status}"
 ac_write_fail=0
@@ -17348,6 +17365,7 @@ do
     "default-1") CONFIG_COMMANDS="$CONFIG_COMMANDS default-1" ;;
     "depfiles") CONFIG_COMMANDS="$CONFIG_COMMANDS depfiles" ;;
     "libtool") CONFIG_COMMANDS="$CONFIG_COMMANDS libtool" ;;
+    "libformat_parser/Makefile") CONFIG_FILES="$CONFIG_FILES libformat_parser/Makefile" ;;
     "libproc_macro_internal/Makefile") CONFIG_FILES="$CONFIG_FILES libproc_macro_internal/Makefile" ;;
 
   *) as_fn_error $? "invalid argument: \`$ac_config_target'" "$LINENO" 5;;

libgrust/configure.ac

@@ -103,6 +103,9 @@ esac
 AC_SUBST(toolexecdir)
 AC_SUBST(toolexeclibdir)
 
+AM_CONDITIONAL(TARGET_LIBRARY, test -n "$with_target_subdir")
+
+AC_CONFIG_FILES([libformat_parser/Makefile])
 
 AC_CONFIG_FILES(AC_FOREACH([DIR], [libproc_macro_internal], [DIR/Makefile ]),
  [ cat > vpsed$$ << \_EOF

libgrust/libformat_parser/Makefile.am

@@ -0,0 +1,13 @@
+LIBFORMAT_PARSER = debug/liblibformat_parser.a
+
+all-local: $(LIBFORMAT_PARSER)
+
+# TODO: Improve `cargo` invocation with host specific flags, possibly creating a $(CARGO) variable?
+$(LIBFORMAT_PARSER): $(srcdir)/Cargo.toml $(srcdir)/src/*.rs
+	cargo \
+	  --config $(srcdir)/.cargo/config \
+	  build \
+	    --offline \
+	    --target-dir . \
+	    --manifest-path $(srcdir)/Cargo.toml \
+	    # FIXME: Not always '--release', right?