package/cmocka: fix build on riscv64

Fixes:
 - http://autobuild.buildroot.org/results/30922c18150ea62aefe123d1b7cd1444efab963f

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Reviewed-by: Joel Carlson <JoelsonCarl@gmail.com>
Tested-by: Joel Carlson <JoelsonCarl@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
(cherry picked from commit 5e321ccf07ca0cd1388f1f78e2cf8d7054c4279f)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/cmocka/0001-Don-t-redefine-uintptr_t.patch

@@ -0,0 +1,77 @@
+From 28ce16b29911e5adc60140b572dee177adc7a178 Mon Sep 17 00:00:00 2001
+From: Fabrice Fontaine <fontaine.fabrice@gmail.com>
+Date: Mon, 18 Nov 2019 18:56:46 +0100
+Subject: [PATCH] Don't redefine uintptr_t
+
+Add a call to check_type_size in ConfigureChecks.cmake and use it in
+include/cmocka.h to avoid the following redefinition error on riscv64:
+
+In file included from /data/buildroot/buildroot-test/instance-0/output/build/cmocka-1.1.5/src/cmocka.c:62:
+/data/buildroot/buildroot-test/instance-0/output/build/cmocka-1.1.5/include/cmocka.h:132:28: error: conflicting types for 'uintptr_t'
+       typedef unsigned int uintptr_t;
+                            ^~~~~~~~~
+In file included from /data/buildroot/buildroot-test/instance-0/output/host/riscv64-buildroot-linux-musl/sysroot/usr/include/stdint.h:20,
+                 from /data/buildroot/buildroot-test/instance-0/output/host/riscv64-buildroot-linux-musl/sysroot/usr/include/inttypes.h:9,
+                 from /data/buildroot/buildroot-test/instance-0/output/build/cmocka-1.1.5/src/cmocka.c:27:
+/data/buildroot/buildroot-test/instance-0/output/host/riscv64-buildroot-linux-musl/sysroot/usr/include/bits/alltypes.h:104:24: note: previous declaration of 'uintptr_t' was here
+ typedef unsigned _Addr uintptr_t;
+                        ^~~~~~~~~
+
+Fixes:
+ - http://autobuild.buildroot.org/results/30922c18150ea62aefe123d1b7cd1444efab963f
+
+Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
+Reviewed-by: Andreas Schneider <asn@cryptomilk.org>
+[Retrieved from:
+https://gitlab.com/cmocka/cmocka/commit/28ce16b29911e5adc60140b572dee177adc7a178]
+---
+ ConfigureChecks.cmake | 3 +++
+ config.h.cmake        | 4 ++++
+ include/cmocka.h      | 2 +-
+ 3 files changed, 8 insertions(+), 1 deletion(-)
+
+diff --git a/ConfigureChecks.cmake b/ConfigureChecks.cmake
+index fe8da35..028774f 100644
+--- a/ConfigureChecks.cmake
++++ b/ConfigureChecks.cmake
+@@ -70,6 +70,9 @@ if (HAVE_TIME_H)
+     check_struct_has_member("struct timespec" tv_sec "time.h" HAVE_STRUCT_TIMESPEC)
+ endif (HAVE_TIME_H)
+ 
++# TYPES
++check_type_size(uintptr_t UINTPTR_T)
++
+ # FUNCTIONS
+ check_function_exists(calloc HAVE_CALLOC)
+ check_function_exists(exit HAVE_EXIT)
+diff --git a/config.h.cmake b/config.h.cmake
+index f8d79da..55fc69f 100644
+--- a/config.h.cmake
++++ b/config.h.cmake
+@@ -75,6 +75,10 @@
+ 
+ #cmakedefine HAVE_STRUCT_TIMESPEC 1
+ 
++/***************************** TYPES *****************************/
++
++#cmakedefine HAVE_UINTPTR_T 1
++
+ /*************************** FUNCTIONS ***************************/
+ 
+ /* Define to 1 if you have the `calloc' function. */
+diff --git a/include/cmocka.h b/include/cmocka.h
+index 3e923dd..0aa557e 100644
+--- a/include/cmocka.h
++++ b/include/cmocka.h
+@@ -120,7 +120,7 @@ typedef uintmax_t LargestIntegralType;
+     ((LargestIntegralType)(value))
+ 
+ /* Smallest integral type capable of holding a pointer. */
+-#if !defined(_UINTPTR_T) && !defined(_UINTPTR_T_DEFINED)
++#if !defined(_UINTPTR_T) && !defined(_UINTPTR_T_DEFINED) && !defined(HAVE_UINTPTR_T)
+ # if defined(_WIN32)
+     /* WIN32 is an ILP32 platform */
+     typedef unsigned int uintptr_t;
+-- 
+2.22.0
+