Index: doxygen.jam
===================================================================
--- doxygen.jam	(revision 46525)
+++ doxygen.jam	(working copy)
@@ -37,6 +37,7 @@
 import alias ;
 import common ;
 import modules ;
+import quote ;
 
 # Use to specify extra configuration paramters. These get translated
 # into a doxyfile which configures the building of the docs.
@@ -199,30 +200,47 @@
     for local param in [ feature.get-values <doxygen:param> : $(properties) ]
     {
         local namevalue = [ regex.match ([^=]*)=(.*) : $(param) ] ;
-        text += "$(namevalue[1]) = $(namevalue[2])" ;
+        local value = [ quote.double-quote $(namevalue[2]) ] ;
+        text += "$(namevalue[1]) = $(value)" ;
         if $(namevalue[1]) = OUTPUT_DIRECTORY
         {
-            output-dir = "$(namevalue[2])" ;
+            output-dir = $(value) ;
         }
     }
     
     if ! $(output-dir)
     {
-        output-dir = [ on $(target) return $(LOCATE) ] ;
+        output-dir = [ quote.double-quote [ on $(target) return $(LOCATE) ] ] ;
         text += "OUTPUT_DIRECTORY = $(output-dir)" ;
     }
 
-    local headers = "" ;
+    # Doxygen generates LaTex by default. So disable it unconditionally,
+    # or at least until someone needs, and hence writes support for, LaTex
+    # output.
+    text += "GENERATE_LATEX = NO" ;
+
+    local first = true ;
+
+    local current = "" ;
+
     for local source in $(sources:G=)
     {
-        headers = "$(headers) $(source)" ;
+        if $(first)
+        {
+            first = ;
+            local quoted_source = [ quote.double-quote $(source) ] ;
+            current = "INPUT = $(quoted_source)" ;
+        }
+        else
+        {
+            text += "$(current) \\" ;
+            local quoted_source = [ quote.double-quote $(source) ] ;
+            current = "  $(quoted_source)" ;
+        }
     }
 
-    # Doxygen generates LaTex by default. So disable it unconditionally,
-    # or at least until someone needs, and hence writes support for, LaTex
-    # output.
-    text += "GENERATE_LATEX = NO" ;
-    text += "INPUT = $(headers) " ;
+    text += $(current) ;
+
     print.output $(target) plain ;
     print.text $(text) : true ;
 }
@@ -278,8 +296,10 @@
         = [ path.join [ path.pwd ] $(source-path) $(source:B) ] ;
     local real-source
         = [ path.native [ path.join [ path.native $(collect-path) ] index.xml ] ] ;
-    xsltproc.xslt $(target) : $(real-source) $(collect-xsl-dir:S=.xsl)
-        : <xsl:param>doxygen.xml.path=$(collect-path)
+    local real-collect-path
+        = [ regex.replace $(collect-path) " " "%%20" ] ;
+    xsltproc.xslt $(target) : "$(real-source)" "$(collect-xsl-dir:S=.xsl)"
+        : <xsl:param>doxygen.xml.path=$(real-collect-path)
         ;
 }