From 0098fe27dfdf543d465c3438108c194b7a56114d Mon Sep 17 00:00:00 2001
From: Stephen Birarda <commit@birarda.com>
Date: Thu, 14 Jan 2016 15:32:56 -0800
Subject: [PATCH] don't uninstall a previously installed section from the
 installer

---
 cmake/templates/NSIS.template.in | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/cmake/templates/NSIS.template.in b/cmake/templates/NSIS.template.in
index d38d29b1f4..c49442ee1f 100644
--- a/cmake/templates/NSIS.template.in
+++ b/cmake/templates/NSIS.template.in
@@ -147,10 +147,14 @@ Var AR_RegFlags
   IntOp $AR_SecFlags $AR_SecFlags & ${SF_SELECTED}
   IntCmp $AR_SecFlags 1 "leave_${SecName}"
     ;Section is not selected:
-    ;Calling Section uninstall macro and writing zero installed flag
-    !insertmacro "Remove_${${SecName}}"
-    WriteRegDWORD HKLM "Software\Microsoft\Windows\CurrentVersion\Uninstall\@CPACK_PACKAGE_INSTALL_REGISTRY_KEY@\Components\${SecName}" \
-  "Installed" 0
+
+    ; NOTE: The default CPack template calls Section uninstall macro and writes zero installed flag
+    ; We do not do that here because it would absolutely cause issues with shared dependencies
+
+    ;!insertmacro "Remove_${${SecName}}"
+    ;WriteRegDWORD HKLM "Software\Microsoft\Windows\CurrentVersion\Uninstall\@CPACK_PACKAGE_INSTALL_REGISTRY_KEY@\Components\${SecName}" \
+    ;  "Installed" 0
+
     Goto "exit_${SecName}"
 
  "leave_${SecName}:"