diff -Naurd mpfr-3.1.5-a/PATCHES mpfr-3.1.5-b/PATCHES
--- mpfr-3.1.5-a/PATCHES	2017-06-06 20:31:35.919341495 +0000
+++ mpfr-3.1.5-b/PATCHES	2017-06-06 20:31:35.943341213 +0000
@@ -0,0 +1 @@
+mpf-compat-signed
diff -Naurd mpfr-3.1.5-a/VERSION mpfr-3.1.5-b/VERSION
--- mpfr-3.1.5-a/VERSION	2017-06-06 20:24:00.604701719 +0000
+++ mpfr-3.1.5-b/VERSION	2017-06-06 20:31:35.943341213 +0000
@@ -1 +1 @@
-3.1.5-p7
+3.1.5-p8
diff -Naurd mpfr-3.1.5-a/src/mpf2mpfr.h mpfr-3.1.5-b/src/mpf2mpfr.h
--- mpfr-3.1.5-a/src/mpf2mpfr.h	2016-09-27 07:58:15.000000000 +0000
+++ mpfr-3.1.5-b/src/mpf2mpfr.h	2017-06-06 20:31:35.931341353 +0000
@@ -93,15 +93,15 @@
 #undef mpf_div_2exp
 #define mpf_div_2exp(x,y,z) mpfr_div_2exp(x,y,z,MPFR_DEFAULT_RND)
 #undef mpf_fits_slong_p
-#define mpf_fits_slong_p(x) mpfr_fits_ulong_p(x,MPFR_DEFAULT_RND)
+#define mpf_fits_slong_p(x) mpfr_fits_slong_p(x,MPFR_DEFAULT_RND)
 #undef mpf_fits_ulong_p
 #define mpf_fits_ulong_p(x) mpfr_fits_ulong_p(x,MPFR_DEFAULT_RND)
 #undef mpf_fits_sint_p
-#define mpf_fits_sint_p(x) mpfr_fits_uint_p(x,MPFR_DEFAULT_RND)
+#define mpf_fits_sint_p(x) mpfr_fits_sint_p(x,MPFR_DEFAULT_RND)
 #undef mpf_fits_uint_p
 #define mpf_fits_uint_p(x) mpfr_fits_uint_p(x,MPFR_DEFAULT_RND)
 #undef mpf_fits_sshort_p
-#define mpf_fits_sshort_p(x) mpfr_fits_ushort_p(x,MPFR_DEFAULT_RND)
+#define mpf_fits_sshort_p(x) mpfr_fits_sshort_p(x,MPFR_DEFAULT_RND)
 #undef mpf_fits_ushort_p
 #define mpf_fits_ushort_p(x) mpfr_fits_ushort_p(x,MPFR_DEFAULT_RND)
 #undef mpf_get_str
@@ -113,7 +113,7 @@
 #undef mpf_get_ui
 #define mpf_get_ui(x) mpfr_get_ui(x,MPFR_DEFAULT_RND)
 #undef mpf_get_si
-#define mpf_get_si(x) mpfr_get_ui(x,MPFR_DEFAULT_RND)
+#define mpf_get_si(x) mpfr_get_si(x,MPFR_DEFAULT_RND)
 #undef mpf_inp_str
 #define mpf_inp_str(x,y,z) mpfr_inp_str(x,y,z,MPFR_DEFAULT_RND)
 #undef mpf_set_str
diff -Naurd mpfr-3.1.5-a/src/mpfr-impl.h mpfr-3.1.5-b/src/mpfr-impl.h
--- mpfr-3.1.5-a/src/mpfr-impl.h	2017-06-06 19:21:17.592843433 +0000
+++ mpfr-3.1.5-b/src/mpfr-impl.h	2017-06-06 20:31:35.931341353 +0000
@@ -342,11 +342,15 @@
 #define MPFR_FLAGS_DIVBY0 32
 #define MPFR_FLAGS_ALL 63
 
-/* Replace some common functions for direct access to the global vars */
-#define mpfr_get_emin() (__gmpfr_emin + 0)
-#define mpfr_get_emax() (__gmpfr_emax + 0)
-#define mpfr_get_default_rounding_mode() (__gmpfr_default_rounding_mode + 0)
-#define mpfr_get_default_prec() (__gmpfr_default_fp_bit_precision + 0)
+/* Replace some common functions for direct access to the global vars.
+   The casts prevent these macros from being used as a lvalue (and this
+   method makes sure that the expressions have the correct type). */
+#define mpfr_get_emin() ((mpfr_exp_t) __gmpfr_emin)
+#define mpfr_get_emax() ((mpfr_exp_t) __gmpfr_emax)
+#define mpfr_get_default_rounding_mode() \
+  ((mpfr_rnd_t) __gmpfr_default_rounding_mode)
+#define mpfr_get_default_prec() \
+  ((mpfr_prec_t) __gmpfr_default_fp_bit_precision)
 
 #define mpfr_clear_flags() \
   ((void) (__gmpfr_flags = 0))
diff -Naurd mpfr-3.1.5-a/src/mpfr.h mpfr-3.1.5-b/src/mpfr.h
--- mpfr-3.1.5-a/src/mpfr.h	2017-06-06 20:24:00.604701719 +0000
+++ mpfr-3.1.5-b/src/mpfr.h	2017-06-06 20:31:35.939341259 +0000
@@ -27,7 +27,7 @@
 #define MPFR_VERSION_MAJOR 3
 #define MPFR_VERSION_MINOR 1
 #define MPFR_VERSION_PATCHLEVEL 5
-#define MPFR_VERSION_STRING "3.1.5-p7"
+#define MPFR_VERSION_STRING "3.1.5-p8"
 
 /* Macros dealing with MPFR VERSION */
 #define MPFR_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
diff -Naurd mpfr-3.1.5-a/src/version.c mpfr-3.1.5-b/src/version.c
--- mpfr-3.1.5-a/src/version.c	2017-06-06 20:24:00.604701719 +0000
+++ mpfr-3.1.5-b/src/version.c	2017-06-06 20:31:35.943341213 +0000
@@ -25,5 +25,5 @@
 const char *
 mpfr_get_version (void)
 {
-  return "3.1.5-p7";
+  return "3.1.5-p8";
 }
diff -Naurd mpfr-3.1.5-a/tests/mpf_compat.h mpfr-3.1.5-b/tests/mpf_compat.h
--- mpfr-3.1.5-a/tests/mpf_compat.h	2016-09-27 07:58:14.000000000 +0000
+++ mpfr-3.1.5-b/tests/mpf_compat.h	2017-06-06 20:31:35.931341353 +0000
@@ -20,16 +20,10 @@
 http://www.gnu.org/licenses/ or write to the Free Software Foundation, Inc.,
 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. */
 
-#if defined (__cplusplus)
-#include <cstdio>
-#else
-#include <stdio.h>
-#endif
 #include <stdlib.h>
-#include <string.h>
 
-#include "gmp.h"
-#include "mpfr.h"
+#include "mpfr-impl.h"
+
 #ifdef MPFR
 #include "mpf2mpfr.h"
 #endif
@@ -228,6 +222,16 @@
       exit (1);
     }
 
+  /* non-regression tests for bugs fixed in revision 11565 */
+  mpf_set_si (x, -1);
+  MPFR_ASSERTN(mpf_fits_ulong_p (x) == 0);
+  MPFR_ASSERTN(mpf_fits_slong_p (x) != 0);
+  MPFR_ASSERTN(mpf_fits_uint_p (x) == 0);
+  MPFR_ASSERTN(mpf_fits_sint_p (x) != 0);
+  MPFR_ASSERTN(mpf_fits_ushort_p (x) == 0);
+  MPFR_ASSERTN(mpf_fits_sshort_p (x) != 0);
+  MPFR_ASSERTN(mpf_get_si (x) == -1);
+
   /* clear all variables */
   mpf_clear (y);
   mpf_clear (x);