sys-libs/ldb: fix redefinition of uintptr_t in bundled cmocka library

Build failed with musl libc:

    In file included from ../../tests/test_tevent_tag.c:34:
    ../../third_party/cmocka/cmocka.h:127:28: error: conflicting types for 'uintptr_t'; have 'unsigned int'
      127 |       typedef unsigned int uintptr_t;
          |                            ^~~~~~~~~
    In file included from /usr/include/stdint.h:20,
                     from ../../tests/test_tevent_tag.c:29:
    /usr/include/bits/alltypes.h:47:24: note: previous declaration of 'uintptr_t' with type 'uintptr_t' {aka 'long unsigned int'}
       47 | typedef unsigned _Addr uintptr_t;
          |                        ^~~~~~~~~

Signed-off-by: Dennis Camera <dennis.camera+gentoo@riiengineering.ch>
Signed-off-by: Sam James <sam@gentoo.org>

sys-libs/ldb/files/cmocka-config_h.patch

@@ -0,0 +1,23 @@
+--- ./third_party/cmocka/cmocka.h.orig	2024-03-26 10:23:03.378410042 +0100
++++ ./third_party/cmocka/cmocka.h	2024-03-26 10:24:51.526922405 +0100
+@@ -14,6 +14,11 @@
+  * See the License for the specific language governing permissions and
+  * limitations under the License.
+  */
++
++#ifdef HAVE_CONFIG_H
++#include "config.h"
++#endif
++
+ #ifndef CMOCKA_H_
+ #define CMOCKA_H_
+ 
+@@ -111,7 +114,7 @@
+     ((LargestIntegralType)(value))
+ 
+ /* Smallest integral type capable of holding a pointer. */
+-#if !defined(_UINTPTR_T) && !defined(_UINTPTR_T_DEFINED)
++#if !defined(HAVE_UINTPTR_T) && !defined(_UINTPTR_T) && !defined(_UINTPTR_T_DEFINED) && !defined(__DEFINED_uintptr_t)
+ # if defined(_WIN32)
+     /* WIN32 is an ILP32 platform */
+     typedef unsigned int uintptr_t;

sys-libs/ldb/ldb-2.6.2.ebuild

@@ -60,6 +60,7 @@ PATCHES=(
 	"${FILESDIR}"/${PN}-1.1.31-fix_PKGCONFIGDIR-when-python-disabled.patch
 	"${FILESDIR}"/${PN}-2.4.2-skip-32bit-time_t-tests.patch
 	"${FILESDIR}"/${PN}-2.5.2-skip-waf-tevent-check.patch
+	"${FILESDIR}"/cmocka-config_h.patch
 )
 
 pkg_setup() {

sys-libs/ldb/ldb-2.7.2.ebuild

@@ -60,6 +60,7 @@ PATCHES=(
 	"${FILESDIR}"/${PN}-1.1.31-fix_PKGCONFIGDIR-when-python-disabled.patch
 	"${FILESDIR}"/${PN}-2.4.2-skip-32bit-time_t-tests.patch
 	"${FILESDIR}"/${PN}-2.5.2-skip-waf-tevent-check.patch
+	"${FILESDIR}"/cmocka-config_h.patch
 )
 
 pkg_setup() {

sys-libs/ldb/ldb-2.8.0.ebuild

@@ -60,6 +60,7 @@ PATCHES=(
 	"${FILESDIR}"/${PN}-1.1.31-fix_PKGCONFIGDIR-when-python-disabled.patch
 	"${FILESDIR}"/${PN}-2.4.2-skip-32bit-time_t-tests.patch
 	"${FILESDIR}"/${PN}-2.5.2-skip-waf-tevent-check.patch
+	"${FILESDIR}"/cmocka-config_h.patch
 )
 
 pkg_setup() {