Windows installer: Detect Inkscape when installing

development/Win32/packaging/installer/include/detection.nsh

@@ -10,6 +10,7 @@ Function SearchExternal
   Call SearchLaTeX
   Call SearchBibTeXEditor
   Call SearchGnumeric
+  Call SearchInkscape
 FunctionEnd
 
 #--------------------------------
@@ -135,3 +136,13 @@ Function SearchGnumeric
 
 FunctionEnd
 
+
+#--------------------------------
+# Inkscape
+
+Function SearchInkscape
+
+  ReadRegStr $PathInkscape HKLM "Software\Microsoft\Windows\CurrentVersion\Uninstall\Inkscape" "InstallLocation"
+  
+FunctionEnd
+

development/Win32/packaging/installer/include/variables.nsh

@@ -10,6 +10,7 @@ Var PathLaTeX
 Var PathLaTeXLocal
 Var PathBibTeXEditor
 Var PathGnumeric
+Var PathInkscape
 
 Var SetupLaTeX
 Var SizeLaTeX

development/Win32/packaging/installer/setup/configure.nsh

@@ -97,6 +97,9 @@ Section -Configure
   ${If} $PathGnumeric != ""
     StrCpy $PathPrefix "$PathPrefix;$PathGnumeric"
   ${EndIf}
+  ${If} $PathInkscape != ""
+    StrCpy $PathPrefix "$PathPrefix;$PathInkscape"
+  ${EndIf}
 
   FileWrite $DistFile '\path_prefix "$PathPrefix"$\r$\n'
 

status.20x

@@ -245,3 +245,5 @@ What's new
 - Windows installer now detects Gnumeric which is needed for the
   spreadsheet external inset template (bug 7870).
 
+- Windows installer now detects Inkscape on installation.
+