libgo: don't copy semt into runtime.inc

    
    https://gcc.gnu.org/PR81449 reports a problem with the definition semt
    in runtime.inc on some systems. Since the C code in libgo/runtime
    doesn't need semt, just don't copy it into runtime.inc.
    
    Reviewed-on: https://go-review.googlesource.com/48593

From-SVN: r250217

gcc/go/gofrontend/MERGE

-a77b1091fa83cfaf200e6dad26e92e42483bae43
+2ae6bf76f97f7d4c63a1f0ad0683b9ba62baaf06
 
 The first line of this file holds the git revision number of the last
 merge done from the gofrontend repository.

libgo/Makefile.am

@@ -543,6 +543,8 @@ s-sigtab: $(srcdir)/mksigtab.sh gen-sysinfo.go
 
 # _Complex_lock and _Reader_lock are Go translations of some AIX system
 # types and should not be exported back to C
+# semt is a Go translation of the C type sem_t; it fails to convert on
+# some systems and need not be exported back to C.
 # sigset conflicts with system type sigset on AIX, so we need to rename it
 runtime.inc: s-runtime-inc; @true
 s-runtime-inc: runtime.lo Makefile
@@ -551,7 +553,7 @@ s-runtime-inc: runtime.lo Makefile
 	for pattern in '_[GP][a-z]' _Max _Lock _Sig _Trace _MHeap _Num; do \
 	  grep "#define $$pattern" runtime.inc.tmp >> runtime.inc.tmp2; \
 	done
-	for TYPE in _Complex_lock _Reader_lock; do \
+	for TYPE in _Complex_lock _Reader_lock semt; do \
 	  sed -e '/struct '$${TYPE}' {/,/^}/s/^.*$$//' runtime.inc.tmp2 > runtime.inc.tmp3; \
 	  mv runtime.inc.tmp3 runtime.inc.tmp2; \
 	done

libgo/Makefile.in

@@ -3093,6 +3093,8 @@ s-sigtab: $(srcdir)/mksigtab.sh gen-sysinfo.go
 
 # _Complex_lock and _Reader_lock are Go translations of some AIX system
 # types and should not be exported back to C
+# semt is a Go translation of the C type sem_t; it fails to convert on
+# some systems and need not be exported back to C.
 # sigset conflicts with system type sigset on AIX, so we need to rename it
 runtime.inc: s-runtime-inc; @true
 s-runtime-inc: runtime.lo Makefile
@@ -3101,7 +3103,7 @@ s-runtime-inc: runtime.lo Makefile
 	for pattern in '_[GP][a-z]' _Max _Lock _Sig _Trace _MHeap _Num; do \
 	  grep "#define $$pattern" runtime.inc.tmp >> runtime.inc.tmp2; \
 	done
-	for TYPE in _Complex_lock _Reader_lock; do \
+	for TYPE in _Complex_lock _Reader_lock semt; do \
 	  sed -e '/struct '$${TYPE}' {/,/^}/s/^.*$$//' runtime.inc.tmp2 > runtime.inc.tmp3; \
 	  mv runtime.inc.tmp3 runtime.inc.tmp2; \
 	done

libgo/configure

@@ -13773,7 +13773,7 @@ rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
     esac
     case "${host}" in
     mips*el-*-*)
-	GOARCH="${GOARCH}le"
+        GOARCH="${GOARCH}le"
         ;;
     *)
 	GOARCH_BIGENDIAN=1