From 96d7f01ae1fad5c3117d76e717cc683bde1ef9fb Mon Sep 17 00:00:00 2001
From: kichik <kichik@212acab6-be3b-0410-9dea-997c60f758d6>
Date: Sat, 5 Nov 2005 14:07:47 +0000
Subject: [PATCH] fixed bug #1338423 - SetOverwrite ifdiff fails with FAT

git-svn-id: https://svn.code.sf.net/p/nsis/code/NSIS/trunk@4373 212acab6-be3b-0410-9dea-997c60f758d6
---
 Source/script.cpp | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/Source/script.cpp b/Source/script.cpp
index 8e1163ab..8986142a 100644
--- a/Source/script.cpp
+++ b/Source/script.cpp
@@ -5925,6 +5925,10 @@ int CEXEBuild::add_file(const string& dir, const string& file, int attrib, const
       FILETIME ft;
       if (GetFileTime(hFile,NULL,NULL,&ft))
       {
+        // FAT write time has a resolution of 2 seconds
+        PULONGLONG fti = (PULONGLONG) &ft;
+        *fti -= *fti % 20000000;
+
         ent.offsets[3]=ft.dwLowDateTime;
         ent.offsets[4]=ft.dwHighDateTime;
       }
@@ -5942,6 +5946,10 @@ int CEXEBuild::add_file(const string& dir, const string& file, int attrib, const
           long long ll;
         };
         ll = (st.st_mtime * 10000000LL) + 116444736000000000LL;
+
+        // FAT write time has a resolution of 2 seconds
+        ll -= ll % 20000000;
+
         ent.offsets[3] = words.l;
         ent.offsets[4] = words.h;
       }