diff -Nru gcc-6.4.0/libjava.orig/include/i386-signal.h gcc-6.4.0/libjava/include/i386-signal.h
--- gcc-6.4.0/libjava.orig/include/i386-signal.h	2011-12-20 13:18:26.524825000 +0100
+++ gcc-6.4.0/libjava/include/i386-signal.h	2017-10-21 19:28:54.131211566 +0200
@@ -29,7 +29,7 @@
 #define HANDLE_DIVIDE_OVERFLOW						\
 do									\
 {									\
-  struct ucontext *_uc = (struct ucontext *)_p;				\
+  struct ucontext_t *_uc = (struct ucontext_t *)_p;				\
   gregset_t &_gregs = _uc->uc_mcontext.gregs;				\
   unsigned char *_eip = (unsigned char *)_gregs[REG_EIP];		\
 									\
diff -Nru gcc-6.4.0/libjava.orig/include/x86_64-signal.h gcc-6.4.0/libjava/include/x86_64-signal.h
--- gcc-6.4.0/libjava.orig/include/x86_64-signal.h	2017-10-21 19:28:37.415142991 +0200
+++ gcc-6.4.0/libjava/include/x86_64-signal.h	2017-10-21 19:12:38.627239709 +0200
@@ -28,7 +28,7 @@
 #define HANDLE_DIVIDE_OVERFLOW						\
 do									\
 {									\
-  struct ucontext *_uc = (struct ucontext *)_p;				\
+  struct ucontext_t *_uc = (struct ucontext_t *)_p;				\
   gregset_t &_gregs = _uc->uc_mcontext.gregs;				\
   unsigned char *_rip = (unsigned char *)_gregs[REG_RIP];		\
 									\