Add `--with-toolexeclibdir=' configuration option

Provide means, in the form of a `--with-toolexeclibdir=' configuration
option, to override the default installation directory for target
libraries, otherwise known as $toolexeclibdir.  This is so that it is
possible to get newly-built libraries, particularly the shared ones,
installed in a common place, so that they can be readily used by the
target system as their host libraries, possibly over NFS, without a need
to manually copy them over from the currently hardcoded location they
would otherwise be installed in.

In the presence of the `--enable-version-specific-runtime-libs' option
and for configurations building native GCC the option is ignored.

	config/
	* toolexeclibdir.m4: New file.

	gcc/
	* doc/install.texi (Cross-Compiler-Specific Options): Document
	`--with-toolexeclibdir' option.

	libada/
	* Makefile.in (configure_deps): Add `toolexeclibdir.m4'.
	* configure.ac: Handle `--with-toolexeclibdir='.
	* configure: Regenerate.

	libatomic/
	* configure.ac: Handle `--with-toolexeclibdir='.
	* Makefile.in: Regenerate.
	* aclocal.m4: Regenerate.
	* configure: Regenerate.
	* testsuite/Makefile.in: Regenerate.

	libffi/
	* configure.ac: Handle `--with-toolexeclibdir='.
	* Makefile.in: Regenerate.
	* aclocal.m4: Regenerate.
	* configure: Regenerate.
	* include/Makefile.in: Regenerate.
	* man/Makefile.in: Regenerate.
	* testsuite/Makefile.in: Regenerate.

	libgcc/
	* Makefile.in (configure_deps): Add `toolexeclibdir.m4'.
	* configure.ac: Handle `--with-toolexeclibdir='.
	* configure: Regenerate.

	libgfortran/
	* configure.ac: Handle `--with-toolexeclibdir='.
	* Makefile.in: Regenerate.
	* aclocal.m4: Regenerate.
	* configure: Regenerate.

	libgomp/
	* configure.ac: Handle `--with-toolexeclibdir='.
	* Makefile.in: Regenerate.
	* aclocal.m4: Regenerate.
	* configure: Regenerate.
	* testsuite/Makefile.in: Regenerate.

	libhsail-rt/
	* configure.ac: Handle `--with-toolexeclibdir='.
	* Makefile.in: Regenerate.
	* aclocal.m4: Regenerate.
	* configure: Regenerate.

	libitm/
	* configure.ac: Handle `--with-toolexeclibdir='.
	* Makefile.in: Regenerate.
	* aclocal.m4: Regenerate.
	* configure: Regenerate.
	* testsuite/Makefile.in: Regenerate.

	libobjc/
	* Makefile.in (aclocal_deps): Add `toolexeclibdir.m4'.
	* aclocal.m4: Include `toolexeclibdir.m4'.
	* configure.ac: Handle `--with-toolexeclibdir='.
	* configure: Regenerate.

	liboffloadmic/
	* plugin/configure.ac: Handle `--with-toolexeclibdir='.
	* plugin/Makefile.in: Regenerate.
	* plugin/aclocal.m4: Regenerate.
	* plugin/configure: Regenerate.
	* configure.ac: Handle `--with-toolexeclibdir='.
	* Makefile.in: Regenerate.
	* aclocal.m4: Regenerate.
	* configure: Regenerate.

	libphobos/
	* m4/druntime.m4: Handle `--with-toolexeclibdir='.
	* m4/Makefile.in: Regenerate.
	* libdruntime/Makefile.in: Regenerate.
	* src/Makefile.in: Regenerate.
	* testsuite/Makefile.in: Regenerate.
	* Makefile.in: Regenerate.
	* aclocal.m4: Regenerate.
	* configure: Regenerate.

	libquadmath/
	* configure.ac: Handle `--with-toolexeclibdir='.
	* Makefile.in: Regenerate.
	* aclocal.m4: Regenerate.
	* configure: Regenerate.

	libsanitizer/
	* configure.ac: Handle `--with-toolexeclibdir='.
	* Makefile.in: Regenerate.
	* aclocal.m4: Regenerate.
	* configure: Regenerate.
	* asan/Makefile.in: Regenerate.
	* interception/Makefile.in: Regenerate.
	* libbacktrace/Makefile.in: Regenerate.
	* lsan/Makefile.in: Regenerate.
	* sanitizer_common/Makefile.in: Regenerate.
	* tsan/Makefile.in: Regenerate.
	* ubsan/Makefile.in: Regenerate.

	libssp/
	* configure.ac: Handle `--with-toolexeclibdir='.
	* Makefile.in: Regenerate.
	* aclocal.m4: Regenerate.
	* configure: Regenerate.

	libstdc++-v3/
	* acinclude.m4: Handle `--with-toolexeclibdir='.
	* Makefile.in: Regenerate.
	* aclocal.m4: Regenerate.
	* configure: Regenerate.
	* doc/Makefile.in: Regenerate.
	* include/Makefile.in: Regenerate.
	* libsupc++/Makefile.in: Regenerate.
	* po/Makefile.in: Regenerate.
	* python/Makefile.in: Regenerate.
	* src/Makefile.in: Regenerate.
	* src/c++11/Makefile.in: Regenerate.
	* src/c++17/Makefile.in: Regenerate.
	* src/c++98/Makefile.in: Regenerate.
	* src/filesystem/Makefile.in: Regenerate.
	* testsuite/Makefile.in: Regenerate.

	libvtv/
	* configure.ac: Handle `--with-toolexeclibdir='.
	* Makefile.in: Regenerate.
	* aclocal.m4: Regenerate.
	* configure: Regenerate.
	* testsuite/Makefile.in: Regenerate.

	zlib/
	* configure.ac: Handle `--with-toolexeclibdir='.
	* Makefile.in: Regenerate.
	* aclocal.m4: Regenerate.
	* configure: Regenerate.

8 files changed, 56 insertions, 4 deletions

diff --git a/libphobos/ChangeLog b/libphobos/ChangeLog
index e5063e8080f..285dfa515b6 100644
--- a/libphobos/ChangeLog
+++ b/libphobos/ChangeLog
@@ -1,3 +1,14 @@
+2020-01-24  Maciej W. Rozycki  <macro@wdc.com>
+
+	* m4/druntime.m4: Handle `--with-toolexeclibdir='.
+	* m4/Makefile.in: Regenerate.
+	* libdruntime/Makefile.in: Regenerate.
+	* src/Makefile.in: Regenerate.
+	* testsuite/Makefile.in: Regenerate.
+	* Makefile.in: Regenerate.
+	* aclocal.m4: Regenerate.
+	* configure: Regenerate.
+
 2020-01-01  Jakub Jelinek  <jakub@redhat.com>
 
 	Update copyright years.
diff --git a/libphobos/Makefile.in b/libphobos/Makefile.in
index 58368c92b49..4e6d0448525 100644
--- a/libphobos/Makefile.in
+++ b/libphobos/Makefile.in
@@ -111,6 +111,7 @@ am__aclocal_m4_deps = $(top_srcdir)/../config/acx.m4 \
 	$(top_srcdir)/../config/lead-dot.m4 \
 	$(top_srcdir)/../config/multi.m4 \
 	$(top_srcdir)/../config/override.m4 \
+	$(top_srcdir)/../config/toolexeclibdir.m4 \
 	$(top_srcdir)/../libtool.m4 $(top_srcdir)/../ltoptions.m4 \
 	$(top_srcdir)/../ltsugar.m4 $(top_srcdir)/../ltversion.m4 \
 	$(top_srcdir)/../lt~obsolete.m4 $(top_srcdir)/acinclude.m4 \
diff --git a/libphobos/aclocal.m4 b/libphobos/aclocal.m4
index dc5595b0081..899592de394 100644
--- a/libphobos/aclocal.m4
+++ b/libphobos/aclocal.m4
@@ -876,6 +876,7 @@ m4_include([../config/acx.m4])
 m4_include([../config/lead-dot.m4])
 m4_include([../config/multi.m4])
 m4_include([../config/override.m4])
+m4_include([../config/toolexeclibdir.m4])
 m4_include([../libtool.m4])
 m4_include([../ltoptions.m4])
 m4_include([../ltsugar.m4])
diff --git a/libphobos/configure b/libphobos/configure
index fde2af90c44..741e23ea7a8 100755
--- a/libphobos/configure
+++ b/libphobos/configure
@@ -837,6 +837,7 @@ with_libbacktrace
 with_target_system_zlib
 with_cross_host
 enable_version_specific_runtime_libs
+with_toolexeclibdir
 enable_libphobos
 '
       ac_precious_vars='build_alias
@@ -1504,6 +1505,9 @@ Optional Packages:
   --with-target-system-zlib={yes,no,auto}
                           use installed libz (default: no)
   --with-cross-host=HOST  configuring with a cross compiler
+  --with-toolexeclibdir=DIR
+                          install libraries built with a cross compiler within
+                          DIR
 
 Some influential environment variables:
   CC          C compiler command
@@ -11640,7 +11644,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 11643 "configure"
+#line 11647 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -11746,7 +11750,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 11749 "configure"
+#line 11753 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -15237,6 +15241,22 @@ fi
   { $as_echo "$as_me:${as_lineno-$LINENO}: result: $version_specific_libs" >&5
 $as_echo "$version_specific_libs" >&6; }
 
+
+# Check whether --with-toolexeclibdir was given.
+if test "${with_toolexeclibdir+set}" = set; then :
+  withval=$with_toolexeclibdir; case ${with_toolexeclibdir} in
+  /)
+    ;;
+  */)
+    with_toolexeclibdir=`echo $with_toolexeclibdir | sed 's,/$,,'`
+    ;;
+esac
+else
+  with_toolexeclibdir=no
+fi
+
+
+
   # Version-specific runtime libs processing.
   if test $version_specific_libs = yes; then
     libphobos_toolexecdir='${libdir}/gcc/${host_alias}'
@@ -15246,7 +15266,14 @@ $as_echo "$version_specific_libs" >&6; }
     # Install a library built with a cross compiler in tooldir, not libdir.
     if test -n "$with_cross_host" && test x"$with_cross_host" != x"no"; then
       libphobos_toolexecdir='${exec_prefix}/${host_alias}'
-      libphobos_toolexeclibdir='${toolexecdir}/lib'
+      case ${with_toolexeclibdir} in
+	no)
+	  libphobos_toolexeclibdir='${toolexecdir}/lib'
+	  ;;
+	*)
+	  libphobos_toolexeclibdir=${with_toolexeclibdir}
+	  ;;
+      esac
     else
       libphobos_toolexecdir='${libdir}/gcc/${host_alias}'
       libphobos_toolexeclibdir='${libdir}'
diff --git a/libphobos/libdruntime/Makefile.in b/libphobos/libdruntime/Makefile.in
index aaf05b534d8..63422308c65 100644
--- a/libphobos/libdruntime/Makefile.in
+++ b/libphobos/libdruntime/Makefile.in
@@ -136,6 +136,7 @@ am__aclocal_m4_deps = $(top_srcdir)/../config/acx.m4 \
 	$(top_srcdir)/../config/lead-dot.m4 \
 	$(top_srcdir)/../config/multi.m4 \
 	$(top_srcdir)/../config/override.m4 \
+	$(top_srcdir)/../config/toolexeclibdir.m4 \
 	$(top_srcdir)/../libtool.m4 $(top_srcdir)/../ltoptions.m4 \
 	$(top_srcdir)/../ltsugar.m4 $(top_srcdir)/../ltversion.m4 \
 	$(top_srcdir)/../lt~obsolete.m4 $(top_srcdir)/acinclude.m4 \
diff --git a/libphobos/m4/druntime.m4 b/libphobos/m4/druntime.m4
index 978c5fe92d2..3b6e474488d 100644
--- a/libphobos/m4/druntime.m4
+++ b/libphobos/m4/druntime.m4
@@ -80,6 +80,8 @@ AC_DEFUN([DRUNTIME_INSTALL_DIRECTORIES],
     [version_specific_libs=no])
   AC_MSG_RESULT($version_specific_libs)
 
+  GCC_WITH_TOOLEXECLIBDIR
+
   # Version-specific runtime libs processing.
   if test $version_specific_libs = yes; then
     libphobos_toolexecdir='${libdir}/gcc/${host_alias}'
@@ -89,7 +91,14 @@ AC_DEFUN([DRUNTIME_INSTALL_DIRECTORIES],
     # Install a library built with a cross compiler in tooldir, not libdir.
     if test -n "$with_cross_host" && test x"$with_cross_host" != x"no"; then
       libphobos_toolexecdir='${exec_prefix}/${host_alias}'
-      libphobos_toolexeclibdir='${toolexecdir}/lib'
+      case ${with_toolexeclibdir} in
+	no)
+	  libphobos_toolexeclibdir='${toolexecdir}/lib'
+	  ;;
+	*)
+	  libphobos_toolexeclibdir=${with_toolexeclibdir}
+	  ;;
+      esac
     else
       libphobos_toolexecdir='${libdir}/gcc/${host_alias}'
       libphobos_toolexeclibdir='${libdir}'
diff --git a/libphobos/src/Makefile.in b/libphobos/src/Makefile.in
index 5a46cb9c4bd..c30b66d086c 100644
--- a/libphobos/src/Makefile.in
+++ b/libphobos/src/Makefile.in
@@ -96,6 +96,7 @@ am__aclocal_m4_deps = $(top_srcdir)/../config/acx.m4 \
 	$(top_srcdir)/../config/lead-dot.m4 \
 	$(top_srcdir)/../config/multi.m4 \
 	$(top_srcdir)/../config/override.m4 \
+	$(top_srcdir)/../config/toolexeclibdir.m4 \
 	$(top_srcdir)/../libtool.m4 $(top_srcdir)/../ltoptions.m4 \
 	$(top_srcdir)/../ltsugar.m4 $(top_srcdir)/../ltversion.m4 \
 	$(top_srcdir)/../lt~obsolete.m4 $(top_srcdir)/acinclude.m4 \
diff --git a/libphobos/testsuite/Makefile.in b/libphobos/testsuite/Makefile.in
index efbd884d7ae..72e6d04793b 100644
--- a/libphobos/testsuite/Makefile.in
+++ b/libphobos/testsuite/Makefile.in
@@ -96,6 +96,7 @@ am__aclocal_m4_deps = $(top_srcdir)/../config/acx.m4 \
 	$(top_srcdir)/../config/lead-dot.m4 \
 	$(top_srcdir)/../config/multi.m4 \
 	$(top_srcdir)/../config/override.m4 \
+	$(top_srcdir)/../config/toolexeclibdir.m4 \
 	$(top_srcdir)/../libtool.m4 $(top_srcdir)/../ltoptions.m4 \
 	$(top_srcdir)/../ltsugar.m4 $(top_srcdir)/../ltversion.m4 \
 	$(top_srcdir)/../lt~obsolete.m4 $(top_srcdir)/acinclude.m4 \