Lagrange [work/v1.7]

iOS: Build date

=> d5940771c664ef947819b0524cc928f4749c501c

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 19497879..2b229442 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -25,7 +25,8 @@ project (Lagrange
 set (COPYRIGHT_YEAR 2021)
 if (IOS)
     set (PROJECT_VERSION 1.7)
-    set (IOS_BUNDLE_VERSION 22)
+    set (IOS_BUNDLE_VERSION 23)
+    set (IOS_BUILD_DATE "2021-09-17")
 endif ()
 
 # Default that depend on environment.
@@ -391,7 +392,10 @@ if (APPLE)
         XCODE_ATTRIBUTE_PRODUCT_BUNDLE_IDENTIFIER "fi.skyjake.lagrange"
     )
     if (IOS)
-        target_compile_definitions (app PUBLIC LAGRANGE_IOS_VERSION="${IOS_BUNDLE_VERSION}")
+        target_compile_definitions (app PUBLIC 
+            LAGRANGE_IOS_VERSION="${IOS_BUNDLE_VERSION}"
+            LAGRANGE_IOS_BUILD_DATE="${IOS_BUILD_DATE}"
+        )
         set_target_properties (app PROPERTIES
             MACOSX_BUNDLE_INFO_PLIST "${CMAKE_CURRENT_LIST_DIR}/res/iOSBundleInfo.plist.in"
             MACOSX_BUNDLE_BUNDLE_VERSION "${IOS_BUNDLE_VERSION}"
diff --git a/src/ui/util.c b/src/ui/util.c
index b78cd6c6..5420e5d2 100644
--- a/src/ui/util.c
+++ b/src/ui/util.c
@@ -1948,7 +1948,7 @@ iWidget *makePreferences_Widget(void) {
         iString *aboutText = collectNew_String(); {
             setCStr_String(aboutText, "Lagrange " LAGRANGE_APP_VERSION);
             #if defined (iPlatformAppleMobile)
-            appendCStr_String(aboutText, " (" LAGRANGE_IOS_VERSION ")");
+            appendCStr_String(aboutText, " (" LAGRANGE_IOS_VERSION ") \u2014 " LAGRANGE_IOS_BUILD_DATE);
             #endif
         }
         const iMenuItem aboutPanelItems[] = {