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.

5 files changed, 49 insertions, 4 deletions

diff --git a/libssp/ChangeLog b/libssp/ChangeLog
index b0188d386d0..f1ccde4e36f 100644
--- a/libssp/ChangeLog
+++ b/libssp/ChangeLog
@@ -1,3 +1,10 @@
+2020-01-24  Maciej W. Rozycki  <macro@wdc.com>
+
+	* configure.ac: Handle `--with-toolexeclibdir='.
+	* Makefile.in: Regenerate.
+	* aclocal.m4: Regenerate.
+	* configure: Regenerate.
+
 2020-01-01  Jakub Jelinek  <jakub@redhat.com>
 
 	Update copyright years.
diff --git a/libssp/Makefile.in b/libssp/Makefile.in
index c540450a5bb..bc8a0dc2b28 100644
--- a/libssp/Makefile.in
+++ b/libssp/Makefile.in
@@ -101,6 +101,7 @@ am__aclocal_m4_deps = $(top_srcdir)/../config/acx.m4 \
 	$(top_srcdir)/../config/multi.m4 \
 	$(top_srcdir)/../config/no-executables.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)/configure.ac
diff --git a/libssp/aclocal.m4 b/libssp/aclocal.m4
index 5b8192e9a60..68fc0a4a718 100644
--- a/libssp/aclocal.m4
+++ b/libssp/aclocal.m4
@@ -1176,6 +1176,7 @@ m4_include([../config/lthostflags.m4])
 m4_include([../config/multi.m4])
 m4_include([../config/no-executables.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/libssp/configure b/libssp/configure
index dfdc5ca8181..5541cf9d972 100755
--- a/libssp/configure
+++ b/libssp/configure
@@ -781,6 +781,7 @@ with_pic
 enable_fast_install
 with_gnu_ld
 enable_libtool_lock
+with_toolexeclibdir
 with_gcc_major_version_only
 '
       ac_precious_vars='build_alias
@@ -1432,6 +1433,9 @@ Optional Packages:
   --with-pic              try to use only PIC/non-PIC objects [default=use
                           both]
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
+  --with-toolexeclibdir=DIR
+                          install libraries built with a cross compiler within
+                          DIR
   --with-gcc-major-version-only
                           use only GCC major number in filesystem paths
 
@@ -10992,7 +10996,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 10995 "configure"
+#line 10999 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -11098,7 +11102,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 11101 "configure"
+#line 11105 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -11360,6 +11364,22 @@ esac
 
 
 
+
+# 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
+
+
+
 # Calculate toolexeclibdir
 # Also toolexecdir, though it's only used in toolexeclibdir
 case ${version_specific_libs} in
@@ -11375,7 +11395,14 @@ case ${version_specific_libs} in
        test x"$with_cross_host" != x"no"; then
       # Install a library built with a cross compiler in tooldir, not libdir.
       toolexecdir='$(exec_prefix)/$(target_alias)'
-      toolexeclibdir='$(toolexecdir)/lib'
+      case ${with_toolexeclibdir} in
+	no)
+	  toolexeclibdir='$(toolexecdir)/lib'
+	  ;;
+	*)
+	  toolexeclibdir=${with_toolexeclibdir}
+	  ;;
+      esac
     else
       toolexecdir='$(libdir)/gcc-lib/$(target_alias)'
       toolexeclibdir='$(libdir)'
diff --git a/libssp/configure.ac b/libssp/configure.ac
index 24e805a1df3..f30f81c54f6 100644
--- a/libssp/configure.ac
+++ b/libssp/configure.ac
@@ -163,6 +163,8 @@ ACX_LT_HOST_FLAGS
 AC_SUBST(enable_shared)
 AC_SUBST(enable_static)
 
+GCC_WITH_TOOLEXECLIBDIR
+
 # Calculate toolexeclibdir
 # Also toolexecdir, though it's only used in toolexeclibdir
 case ${version_specific_libs} in
@@ -178,7 +180,14 @@ case ${version_specific_libs} in
        test x"$with_cross_host" != x"no"; then
       # Install a library built with a cross compiler in tooldir, not libdir.
       toolexecdir='$(exec_prefix)/$(target_alias)'
-      toolexeclibdir='$(toolexecdir)/lib'
+      case ${with_toolexeclibdir} in
+	no)
+	  toolexeclibdir='$(toolexecdir)/lib'
+	  ;;
+	*)
+	  toolexeclibdir=${with_toolexeclibdir}
+	  ;;
+      esac
     else
       toolexecdir='$(libdir)/gcc-lib/$(target_alias)'
       toolexeclibdir='$(libdir)'