This was already applied on the GCC side.

* Makefile.def (fortran): Add check-target-libgomp-fortran.
	* Makefile.tpl (check-target-libgomp-fortran): New phony target.
	* Makefile.in: Regenerate.

	* configure: Regenerate.

ChangeLog

@@ -1,3 +1,11 @@
+2018-06-18  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* Makefile.def (fortran): Add check-target-libgomp-fortran.
+	* Makefile.tpl (check-target-libgomp-fortran): New phony target.
+	* Makefile.in: Regenerate.
+
+	* configure: Regenerate.
+
 2018-06-18  Simon Marchi  <simon.marchi@ericsson.com>
 
 	* configure.ac: Sync with GCC, remove MPX-related things.

Makefile.def

@@ -593,7 +593,8 @@ languages = { language=c++;	gcc-check-target=check-c++;
 				lib-check-target=check-target-libgomp-c++; };
 languages = { language=fortran;	gcc-check-target=check-fortran;
 				lib-check-target=check-target-libquadmath;
-				lib-check-target=check-target-libgfortran; };
+				lib-check-target=check-target-libgfortran;
+				lib-check-target=check-target-libgomp-fortran; };
 languages = { language=ada;	gcc-check-target=check-ada;
 				lib-check-target=check-target-libada; };
 languages = { language=objc;	gcc-check-target=check-objc;

Makefile.in

@@ -46908,6 +46908,10 @@ maintainer-clean-target-libatomic:
 check-target-libgomp-c++:
 	$(MAKE) RUNTESTFLAGS="$(RUNTESTFLAGS) c++.exp" check-target-libgomp
 
+.PHONY: check-target-libgomp-fortran
+check-target-libgomp-fortran:
+	$(MAKE) RUNTESTFLAGS="$(RUNTESTFLAGS) fortran.exp" check-target-libgomp
+
 @endif target-libgomp
 
 @if target-libitm
@@ -46959,7 +46963,7 @@ check-gcc-fortran:
 	s=`cd $(srcdir); ${PWD_COMMAND}`; export s; \
 	$(HOST_EXPORTS) \
 	(cd gcc && $(MAKE) $(GCC_FLAGS_TO_PASS) check-fortran);
-check-fortran: check-gcc-fortran check-target-libquadmath check-target-libgfortran
+check-fortran: check-gcc-fortran check-target-libquadmath check-target-libgfortran check-target-libgomp-fortran
 
 .PHONY: check-gcc-ada check-ada
 check-gcc-ada:

Makefile.tpl

@@ -1460,6 +1460,10 @@ ENDIF raw_cxx +]
 check-target-libgomp-c++:
 	$(MAKE) RUNTESTFLAGS="$(RUNTESTFLAGS) c++.exp" check-target-libgomp
 
+.PHONY: check-target-libgomp-fortran
+check-target-libgomp-fortran:
+	$(MAKE) RUNTESTFLAGS="$(RUNTESTFLAGS) fortran.exp" check-target-libgomp
+
 @endif target-libgomp
 
 @if target-libitm

configure

@@ -2758,7 +2758,6 @@ target_libraries="target-libgcc \
 		target-libstdc++-v3 \
 		target-libsanitizer \
 		target-libvtv \
-		target-libmpx \
 		target-libssp \
 		target-libquadmath \
 		target-libgfortran \
@@ -3264,25 +3263,6 @@ $as_echo "yes" >&6; }
 fi
 
 
-# Enable libmpx on supported systems by request.
-if test -d ${srcdir}/libmpx; then
-    if test x$enable_libmpx = x; then
-       { $as_echo "$as_me:${as_lineno-$LINENO}: checking for libmpx support" >&5
-$as_echo_n "checking for libmpx support... " >&6; }
-       if (srcdir=${srcdir}/libmpx; \
-               . ${srcdir}/configure.tgt; \
-               test "$LIBMPX_SUPPORTED" != "yes")
-       then
-           { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-           noconfigdirs="$noconfigdirs target-libmpx"
-       else
-           { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-       fi
-    fi
-fi
-
 # Disable libhsail-rt on unsupported systems.
 if test -d ${srcdir}/libhsail-rt; then
     if test x$enable_libhsail_rt = x; then
@@ -7110,16 +7090,6 @@ if echo " ${target_configdirs} " | grep " libvtv " > /dev/null 2>&1 &&
   bootstrap_target_libs=${bootstrap_target_libs}target-libvtv,
 fi
 
-# If we are building libmpx and $BUILD_CONFIG contains bootstrap-mpx,
-# bootstrap it.
-if echo " ${target_configdirs} " | grep " libmpx " > /dev/null 2>&1; then
-  case "$BUILD_CONFIG" in
-    *bootstrap-mpx* )
-      bootstrap_target_libs=${bootstrap_target_libs}target-libmpx,
-      ;;
-  esac
-fi
-
 # Determine whether gdb needs tk/tcl or not.
 # Use 'maybe' since enable_gdbtk might be true even if tk isn't available
 # and in that case we want gdb to be built without tk.  Ugh!