build: Add libgrust as compilation modules

Define the libgrust directory as a host compilation module as well as
for targets. Disable target libgrust if we're not building target
libstdc++.

ChangeLog:

	* Makefile.def: Add libgrust as host & target module.
	* configure.ac: Add libgrust to host tools list. Add libgrust to
	noconfigdirs if we're not building target libstdc++.
	* Makefile.in: Regenerate.
	* configure: Regenerate.

gcc/rust/ChangeLog:

	* config-lang.in: Add libgrust as a target module for the rust
	language.

Co-authored-by: Thomas Schwinge <thomas@codesourcery.com>
Signed-off-by: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>

1 files changed, 13 insertions, 1 deletions

diff --git a/configure b/configure
index f8abb26..874966f 100755
--- a/configure
+++ b/configure
@@ -2829,7 +2829,7 @@ build_tools="build-texinfo build-flex build-bison build-m4 build-fixincludes"
 
 # these libraries are used by various programs built for the host environment
 #f
-host_libs="gettext libiberty opcodes bfd readline tcl tk itcl libgui zlib libbacktrace libcpp libcody libdecnumber gmp mpfr mpc isl libiconv libctf libsframe"
+host_libs="gettext libiberty opcodes bfd readline tcl tk itcl libgui zlib libbacktrace libcpp libcody libdecnumber gmp mpfr mpc isl libiconv libctf libsframe libgrust "
 
 # these tools are built for the host environment
 # Note, the powerpc-eabi build depends on sim occurring before gdb in order to
@@ -2860,6 +2860,7 @@ target_libraries="target-libgcc \
 		target-libada \
 		target-libgm2 \
 		target-libgo \
+		target-libgrust \
 		target-libphobos \
 		target-zlib"
 
@@ -9275,6 +9276,17 @@ case ,${enable_languages}, in
     ;;
 esac
 
+case ,${enable_languages}, in
+  *,rust,*)
+    case " ${noconfigdirs} " in
+      *\ target-libstdc++-v3\ *)
+        # Disable target libgrust if we're not building target libstdc++.
+        noconfigdirs="$noconfigdirs target-libgrust"
+        ;;
+    esac
+    ;;
+esac
+
 # If gcc/ is not in the source tree then we'll not be building a
 # target compiler, assume in that case we don't want to build any
 # target libraries or tools.