Deprecate a.out support for NetBSD targets.

As discussed previously, a.out support is now quite deprecated, and in
some cases removed, in both Binutils itself and NetBSD, so this legacy
default makes little sense. `netbsdelf*` and `netbsdaout*` still work
allowing the user to be explicit about there choice. Additionally, the
configure script warns about the change as Nick Clifton requested.

One possible concern was the status of NetBSD on NS32K, where only a.out
was supported. But per [1] NetBSD has removed support, and if it were to
come back, it would be with ELF. The binutils implementation is
therefore marked obsolete, per the instructions in the last message.

With that patch and this one applied, I have confirmed the following:

--target=i686-unknown-netbsd
--target=i686-unknown-netbsdelf
  builds completely

--target=i686-unknown-netbsdaout
  properly fails because target is deprecated.

--target=vax-unknown-netbsdaout builds completely except for gas, where
the target is deprecated.

[1]: https://mail-index.netbsd.org/tech-toolchain/2021/07/19/msg004025.html

config/ChangeLog:

	* picflag.m4: Simplify SHmedia NetBSD match by presuming ELF.

gcc/ChangeLog:

	* configure: Regenerate.

libada/ChangeLog:

	* configure: Regenerate.

libgcc/ChangeLog:

	* configure: Regenerate.

libiberty/ChangeLog:

	* configure: Regenerate.

diff --git a/config/picflag.m4 b/config/picflag.m4
index 0aefcf619bf6a553513feadf05cbe88d8c8f43c9..3f3ac744c96c6a875539d69b5191377c333367e7 100644 (file)
--- a/config/picflag.m4
+++ b/config/picflag.m4
@@ -63,9 +63,7 @@ case "${$2}" in
     sh-*-linux* | sh[[2346lbe]]*-*-linux*)
        $1=-fpic
        ;;
-    # FIXME: Simplify to sh*-*-netbsd*?
-    sh-*-netbsdelf* | shl*-*-netbsdelf* | sh5-*-netbsd* | sh5l*-*-netbsd* | \
-      sh64-*-netbsd* | sh64l*-*-netbsd*)
+    sh*-*-netbsd*)
        $1=-fpic
        ;;
     # Default to -fPIC unless specified otherwise.

diff --git a/gcc/configure b/gcc/configure
index cd9919e858d0af2cfd91e3625f9306f12f3c8a3b..e5e95e7c1c82caba9dd1c269eeb371a5b03eb273 100755 (executable)
--- a/gcc/configure
+++ b/gcc/configure
@@ -5480,9 +5480,7 @@ case "${target}" in
     sh-*-linux* | sh[2346lbe]*-*-linux*)
        PICFLAG_FOR_TARGET=-fpic
        ;;
-    # FIXME: Simplify to sh*-*-netbsd*?
-    sh-*-netbsdelf* | shl*-*-netbsdelf* | sh5-*-netbsd* | sh5l*-*-netbsd* | \
-      sh64-*-netbsd* | sh64l*-*-netbsd*)
+    sh*-*-netbsd*)
        PICFLAG_FOR_TARGET=-fpic
        ;;
     # Default to -fPIC unless specified otherwise.
@@ -19888,7 +19886,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 19891 "configure"
+#line 19889 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -19994,7 +19992,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 19997 "configure"
+#line 19995 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H

diff --git a/libada/configure b/libada/configure
index 9c8b133d81744c3d16de902144e82b55dd0b4225..ac4dad3ad3b595e7ab4e1f79a8c437d8bcd0dd59 100755 (executable)
--- a/libada/configure
+++ b/libada/configure
@@ -3231,9 +3231,7 @@ case "${host}" in
     sh-*-linux* | sh[2346lbe]*-*-linux*)
        PICFLAG=-fpic
        ;;
-    # FIXME: Simplify to sh*-*-netbsd*?
-    sh-*-netbsdelf* | shl*-*-netbsdelf* | sh5-*-netbsd* | sh5l*-*-netbsd* | \
-      sh64-*-netbsd* | sh64l*-*-netbsd*)
+    sh*-*-netbsd*)
        PICFLAG=-fpic
        ;;
     # Default to -fPIC unless specified otherwise.

diff --git a/libgcc/configure b/libgcc/configure
index 1e727367ba3810d9f240165ad295fc2c9eb81e72..cf149209652e34e63b42bf9bd5ff2cd4e3ff99be 100755 (executable)
--- a/libgcc/configure
+++ b/libgcc/configure
@@ -2422,9 +2422,7 @@ case "${host}" in
     sh-*-linux* | sh[2346lbe]*-*-linux*)
        PICFLAG=-fpic
        ;;
-    # FIXME: Simplify to sh*-*-netbsd*?
-    sh-*-netbsdelf* | shl*-*-netbsdelf* | sh5-*-netbsd* | sh5l*-*-netbsd* | \
-      sh64-*-netbsd* | sh64l*-*-netbsd*)
+    sh*-*-netbsd*)
        PICFLAG=-fpic
        ;;
     # Default to -fPIC unless specified otherwise.

diff --git a/libiberty/configure b/libiberty/configure
index bdc860f1623614c49cb3f282f486a47bb1bb8530..dd896270dc63bc3a28263f24efbe758cad44259f 100755 (executable)
--- a/libiberty/configure
+++ b/libiberty/configure
@@ -5368,9 +5368,7 @@ case "${host}" in
     sh-*-linux* | sh[2346lbe]*-*-linux*)
        PICFLAG=-fpic
        ;;
-    # FIXME: Simplify to sh*-*-netbsd*?
-    sh-*-netbsdelf* | shl*-*-netbsdelf* | sh5-*-netbsd* | sh5l*-*-netbsd* | \
-      sh64-*-netbsd* | sh64l*-*-netbsd*)
+    sh*-*-netbsd*)
        PICFLAG=-fpic
        ;;
     # Default to -fPIC unless specified otherwise.