Add the required glue to make this work again on NetBSD/powerpc.

Pkgsrc changes:
 * Add required macros for accessing ucontext for NetBSD/powerpc
 * Omit files from PLIST.opt which are in PLIST.natdynlink.
   So far macppc doesn't do "natdynlink", tests are failing.
 * Adapt Makefile to features enabled on NetBSD/powerpc.
 * Bump PKGREVISION.

The self-test results are nearly the same as on NetBSD/i386, with one
test failing, difference is one unexpected failure related to native
dynlink which I thought I had not enabled, and which obviously needs
more attention since it tries to reference a Linux linker script.
...
Summary:
  637 tests passed
   13 tests skipped
    1 tests failed
    1 unexpected errors
  652 tests considered

List of failed tests:
    tests/tool-ocamldoc-man/Inline_records.mli

List of unexpected errors:
    tests/lib-dynlink-native
...

5 files changed, 51 insertions, 15 deletions

diff --git a/lang/ocaml/Makefile b/lang/ocaml/Makefile
index 2af3a46e6a9..6b167c2a384 100644
--- a/lang/ocaml/Makefile
+++ b/lang/ocaml/Makefile
@@ -1,8 +1,8 @@
-# $NetBSD: Makefile,v 1.108 2017/03/27 12:54:59 jperkin Exp $
+# $NetBSD: Makefile,v 1.109 2017/07/11 17:15:01 he Exp $
 
 .include "Makefile.common"
 
-#PKGREVISION=		2
+PKGREVISION=		1
 
 CONFIGURE_ENV+=		disable_x11=yes
 
@@ -34,7 +34,6 @@ BUILD_TARGET+=	opt opt.opt
 PLIST_SRC+=	${PKGDIR}/PLIST.opt
 .  if empty(MACHINE_PLATFORM:MDarwin-*-powerpc) && \
       empty(MACHINE_PLATFORM:MSunOS-*-i386) && \
-      empty(MACHINE_PLATFORM:MNetBSD-*-powerpc) && \
       empty(MACHINE_PLATFORM:MNetBSD-*-arm) && \
       empty(MACHINE_PLATFORM:MNetBSD-*-sparc)
 PLIST_SRC+=	${PKGDIR}/PLIST.prof
@@ -47,7 +46,7 @@ PLIST_SRC+=	${PKGDIR}/PLIST.prof
 .  if !empty(MACHINE_PLATFORM:MLinux-*-*) || \
       !empty(MACHINE_PLATFORM:MFreeBSD-*-*) || \
       !empty(MACHINE_PLATFORM:MDragonFly-*-*) || \
-      !empty(MACHINE_PLATFORM:MNetBSD-*-*) || \
+      (!empty(MACHINE_PLATFORM:MNetBSD-*-*) && empty(MACHINE_PLATFORM:MNetBSD-*-powerpc)) || \
       !empty(MACHINE_PLATFORM:MDarwin-*-*) || \
       !empty(MACHINE_PLATFORM:MSunOS-*-*)
 PLIST_SRC+=	${PKGDIR}/PLIST.natdynlink
diff --git a/lang/ocaml/PLIST.opt b/lang/ocaml/PLIST.opt
index 50d16d8fbce..e1176f2da6b 100644
--- a/lang/ocaml/PLIST.opt
+++ b/lang/ocaml/PLIST.opt
@@ -1,4 +1,4 @@
-@comment $NetBSD: PLIST.opt,v 1.27 2017/03/27 11:51:30 jperkin Exp $
+@comment $NetBSD: PLIST.opt,v 1.28 2017/07/11 17:15:01 he Exp $
 bin/ocamlc.opt
 bin/ocamlcp.opt
 bin/ocamldep.opt
@@ -19,7 +19,6 @@ lib/ocaml/big_int.cmx
 lib/ocaml/bigarray.a
 lib/ocaml/bigarray.cmx
 lib/ocaml/bigarray.cmxa
-lib/ocaml/bigarray.cmxs
 lib/ocaml/buffer.cmx
 lib/ocaml/bytes.cmx
 lib/ocaml/bytesLabels.cmx
@@ -185,9 +184,6 @@ lib/ocaml/compiler-libs/x86_masm.cmx
 lib/ocaml/compiler-libs/x86_proc.cmx
 lib/ocaml/complex.cmx
 lib/ocaml/digest.cmx
-lib/ocaml/dynlink.a
-lib/ocaml/dynlink.cmx
-lib/ocaml/dynlink.cmxa
 lib/ocaml/ephemeron.cmx
 lib/ocaml/filename.cmx
 lib/ocaml/format.cmx
@@ -220,7 +216,6 @@ lib/ocaml/nativeint.cmx
 lib/ocaml/num.cmx
 lib/ocaml/nums.a
 lib/ocaml/nums.cmxa
-lib/ocaml/nums.cmxs
 lib/ocaml/obj.cmx
 lib/ocaml/ocamldoc/odoc.cmx
 lib/ocaml/ocamldoc/odoc_analyse.cmx
@@ -292,7 +287,6 @@ lib/ocaml/stdlib.cmxa
 lib/ocaml/str.a
 lib/ocaml/str.cmx
 lib/ocaml/str.cmxa
-lib/ocaml/str.cmxs
 lib/ocaml/stream.cmx
 lib/ocaml/string.cmx
 lib/ocaml/stringLabels.cmx
@@ -308,7 +302,6 @@ lib/ocaml/uchar.cmx
 lib/ocaml/unix.a
 lib/ocaml/unix.cmx
 lib/ocaml/unix.cmxa
-lib/ocaml/unix.cmxs
 lib/ocaml/unixLabels.cmx
 lib/ocaml/vmthreads/libvmthreads.a
 lib/ocaml/weak.cmx
diff --git a/lang/ocaml/distinfo b/lang/ocaml/distinfo
index 421ad129ef1..3215a5953df 100644
--- a/lang/ocaml/distinfo
+++ b/lang/ocaml/distinfo
@@ -1,4 +1,4 @@
-$NetBSD: distinfo,v 1.104 2017/07/11 09:52:11 jaapb Exp $
+$NetBSD: distinfo,v 1.105 2017/07/11 17:15:01 he Exp $
 
 SHA1 (ocaml-4.04.2.tar.gz) = 24281675ea90c9234e323d556f1d4cd7bdab8ec1
 RMD160 (ocaml-4.04.2.tar.gz) = 3d8f78cd544815233f814a0e24eba8d3c948b190
@@ -7,8 +7,9 @@ Size (ocaml-4.04.2.tar.gz) = 3561930 bytes
 SHA1 (patch-Makefile) = 426d2aa080922fb6f034a76b8009f2fcbbe7a693
 SHA1 (patch-asmcomp_asmlink.ml) = db2b387ea17f41a62c2bce53b91f945d5e29a82f
 SHA1 (patch-asmrun_Makefile) = 923b46ebf5fb56693b8335787846dafda936b34c
+SHA1 (patch-asmrun_signals__osdep.h) = 1b990aad8e99692f0799e2d3dc61df2f4d1c8f6a
 SHA1 (patch-byterun_Makefile) = b9b14b097904fbde4b738b89461991411e985ae1
-SHA1 (patch-configure) = b3004e40d2337c50c49337f2c7964d469ba99e5c
+SHA1 (patch-configure) = 291e703a6a2147b760330f4623a049cceb2543e9
 SHA1 (patch-debugger_Makefile.shared) = f0aac2e10b7ccf2e8e43bbbd3fd3e59e4dc4eeae
 SHA1 (patch-driver_compenv.ml) = 658e315bb08f8a1093f11c8474ac1e4ad73c8306
 SHA1 (patch-driver_main.ml) = 69a6f761ded38e0721a7aed1416a9f19a288d991
diff --git a/lang/ocaml/patches/patch-asmrun_signals__osdep.h b/lang/ocaml/patches/patch-asmrun_signals__osdep.h
new file mode 100644
index 00000000000..2b0a75fc471
--- /dev/null
+++ b/lang/ocaml/patches/patch-asmrun_signals__osdep.h
@@ -0,0 +1,42 @@
+$NetBSD: patch-asmrun_signals__osdep.h,v 1.1 2017/07/11 17:15:02 he Exp $
+
+Provide necessary glue to do this on NetBSD/powerpc.
+
+--- asmrun/signals_osdep.h.orig	2016-11-04 16:08:24.000000000 +0000
++++ asmrun/signals_osdep.h
+@@ -154,6 +154,26 @@
+  #define CONTEXT_YOUNG_PTR (context->uc_mcontext.gregs[REG_R15])
+  #define CONTEXT_FAULTING_ADDRESS ((char *) info->si_addr)
+ 
++/****************** PowerPC, NetBSD */
++
++#elif defined(TARGET_power) && defined (__NetBSD__)
++
++ #include <ucontext.h>
++ #define DECLARE_SIGNAL_HANDLER(name) \
++ static void name(int sig, siginfo_t * info, ucontext_t * context)
++
++ #define SET_SIGACT(sigact,name) \
++ sigact.sa_sigaction = (void (*)(int,siginfo_t *,void *)) (name); \
++ sigact.sa_flags = SA_SIGINFO
++
++ #define CONTEXT_PC (_UC_MACHINE_PC(context))
++ #define CONTEXT_EXCEPTION_POINTER (context->uc_mcontext.__gregs[_REG_R29])
++ #define CONTEXT_YOUNG_PTR (context->uc_mcontext.__gregs[_REG_R31])
++ #define CONTEXT_SP (_UC_MACHINE_SP(context))
++ #define CONTEXT_FAULTING_ADDRESS ((char *) info->si_addr)
++
++/* #define CONTEXT_YOUNG_LIMIT (CONTEXT_STATE.CONTEXT_REG(r30)) */
++
+ /****************** I386, Linux */
+ 
+ #elif defined(TARGET_i386) && defined(SYS_linux_elf)
+@@ -287,7 +307,7 @@
+ 
+ /****************** PowerPC, ELF (Linux) */
+ 
+-#elif defined(TARGET_power) && defined(SYS_elf)
++#elif defined(TARGET_power) && defined(SYS_elf) && !defined(__NetBSD__)
+ 
+   #define DECLARE_SIGNAL_HANDLER(name) \
+     static void name(int sig, struct sigcontext * context)
diff --git a/lang/ocaml/patches/patch-configure b/lang/ocaml/patches/patch-configure
index c9012f13ed3..dc615a069c2 100644
--- a/lang/ocaml/patches/patch-configure
+++ b/lang/ocaml/patches/patch-configure
@@ -1,6 +1,7 @@
-$NetBSD: patch-configure,v 1.22 2017/03/27 12:54:59 jperkin Exp $
+$NetBSD: patch-configure,v 1.23 2017/07/11 17:15:02 he Exp $
 
 All kinds of OS-specific changes to configure
+
 --- configure.orig	2016-11-04 16:08:24.000000000 +0000
 +++ configure
 @@ -726,7 +726,10 @@ if test $with_sharedlibs = "yes"; then