3 files changed, 52 insertions(+), 2 deletions(-)

M gnu/local.mk
M gnu/packages/check.scm
A gnu/packages/patches/unity-test-support-int64.patch

@@ 2434,6 2434,7 @@ dist_patch_DATA =						\
   %D%/packages/patches/uftrace-fix-tests.patch			\
   %D%/packages/patches/ultrastar-deluxe-no-freesans.patch		\
   %D%/packages/patches/unity-test-set-subdir-correctly.patch		\
+  %D%/packages/patches/unity-test-support-int64.patch		\
   %D%/packages/patches/ungoogled-chromium-extension-search-path.patch	\
   %D%/packages/patches/ungoogled-chromium-RUNPATH.patch		\
   %D%/packages/patches/ungoogled-chromium-system-nspr.patch	\

@@ 3410,11 3410,13 @@ portable to just about any platform.")
               (file-name (git-file-name name version))
               (sha256
                (base32 "1s0jj9f2zav49mn9ib90idcmb6hq93aczbqysn5hj6binjmrnjw3"))
-              (patches (search-patches "unity-test-set-subdir-correctly.patch"))))
+              (patches (search-patches "unity-test-set-subdir-correctly.patch"
+                                       "unity-test-support-int64.patch"))))
     (build-system meson-build-system)
     (arguments
       (list #:configure-flags
-            #~(list "-Dsupport_double=true")
+            #~(list "-Dsupport_double=true"
+                    "-Dsupport_int64=true")
             #:phases
             #~(modify-phases %standard-phases
                 (add-after 'patch-source-shebangs 'patch-more-shebangs

@@ 0,0 1,47 @@
+Upstream status: https://github.com/ThrowTheSwitch/Unity/pull/823
+
+From 4d35efd1bc5ecfa67d73bf81e64ba54c08ed5318 Mon Sep 17 00:00:00 2001
+From: Dariqq <77271900+Dariqq@users.noreply.github.com>
+Date: Tue, 20 Jan 2026 18:10:14 +0000
+Subject: [PATCH] meson: Add option for UNITY_SUPPORT_64
+
+---
+ meson.build       | 5 +++++
+ meson_options.txt | 1 +
+ 2 files changed, 6 insertions(+)
+
+diff --git a/meson.build b/meson.build
+index 6585129..633beb3 100644
+--- a/meson.build
++++ b/meson.build
+@@ -26,6 +26,7 @@ project('unity', 'c',
+ build_fixture = get_option('extension_fixture')
+ build_memory = get_option('extension_memory')
+ support_double = get_option('support_double')
++support_int64 = get_option('support_int64')
+ 
+ unity_args = []
+ unity_src = []
+@@ -48,6 +49,10 @@ if support_double
+   unity_args += '-DUNITY_INCLUDE_DOUBLE'
+ endif
+ 
++if support_int64
++  unity_args += '-DUNITY_SUPPORT_64'
++endif
++
+ unity_lib = static_library(meson.project_name(),
+   sources: unity_src,
+   c_args: unity_args,
+diff --git a/meson_options.txt b/meson_options.txt
+index 8e66784..d8ab7a7 100644
+--- a/meson_options.txt
++++ b/meson_options.txt
+@@ -1,3 +1,4 @@
+ option('extension_fixture', type: 'boolean', value: 'false', description: 'Whether to enable the fixture extension.')
+ option('extension_memory', type: 'boolean', value: 'false', description: 'Whether to enable the memory extension.')
+ option('support_double', type: 'boolean', value: 'false', description: 'Whether to enable double precision floating point assertions.')
++option('support_int64', type: 'boolean', value: false, description: 'Whether to enable support for 64bit integers. false means autodetect.')
+-- 
+2.52.0
+