--- ./build.d.orig	Tue Feb 15 12:05:04 2005
+++ ./build.d	Sun Feb 20 20:48:49 2005
@@ -45,6 +45,9 @@
     version(linux) {
         import std.c.linux.linux;
     }
+    version(darwin) {
+        import std.c.darwin.darwin;
+    }
 
     // --------- C externals ----------------
     extern (C)
@@ -71,6 +74,11 @@
             StringN kLibExtention=`lib`;
             StringN kObjExtention=`o`;
         }
+        version(darwin) {
+            StringN kExeExtention=``;
+            StringN kLibExtention=`a`;
+            StringN kObjExtention=`o`;
+        }
         
     }
     
@@ -90,6 +98,13 @@
         StringN vConfigPath=`/etc/`;
     }
 
+    version(darwin) {
+        StringN vCompiler=`dmd`;
+        StringN vConfigFile;
+        StringN vCompilerPath=`/opt/gdc/bin`;
+        StringN vConfigPath;
+    }
+
     StringN       vUnitTest = "-unittest";    
     bool          vNoLink = false;
     bool          vForceCompile = false;
@@ -443,7 +458,11 @@
             lOutText=std.string.replace(lOutText,std.path.linesep," ");
             command = vCompiler ~ " " ~ lOutText;
         }
-        
+        version(darwin) { // using commandline, may run into limits
+            lOutText=std.string.replace(lOutText,std.path.linesep," ");
+            command = vCompiler ~ " " ~ lOutText;
+        }
+       
         if (vVerbose) {
             writefln("Compiling with ..........\n%s\n", lOutText);
         }
@@ -481,6 +500,10 @@
             lOutText=std.string.replace(lOutText,std.path.linesep," ");
             command = "lib " ~ lOutText;
         }
+        version(darwin) { // using commandline, may run into limits
+            lOutText=std.string.replace(lOutText,std.path.linesep," ");
+            command = "lib " ~ lOutText;
+        }
         if (vVerbose) {
             writefln("Librarian with ..........\n%s\n", lOutText);
         }
@@ -580,6 +603,7 @@
     lFullName = pathex.CanonicalPath(pRootName);
     version(Windows) lSearchName = std.string.tolower(lFullName);
     version(linux)   lSearchName = lFullName;
+    version(darwin)  lSearchName = lFullName;
     if( !(lSearchName in lRootHash) ) {
         vImportRoots ~= lFullName;
         lRootHash[lSearchName] = true;
@@ -614,7 +638,7 @@
                 if (lSymName == "@P")
                 {
                     // Special symbol that refers to the configuration file's directory.
-                    lSymName = vConfigPath[0..length-1];
+                    lSymName = vConfigPath ? vConfigPath[0..length-1] : "";
                 }
                 else
                 {
@@ -635,6 +659,7 @@
 // -------------------------------------------
 void ReadConfigFile() {
 // -------------------------------------------
+    if (!vConfigFile) return;
     StringN lPath = vConfigPath ~ vConfigFile ;
     StringN[] lTextLines = source.GetFileTextLines(lPath);
     StringN lRootName;
@@ -758,11 +783,14 @@
     
     version(DigitalMars)  vActiveVersions ["DigitalMars"] = true;
     version(X86)          vActiveVersions ["X86"] = true;
+    version(PPC)          vActiveVersions ["PPC"] = true;
     version(AMD64)        vActiveVersions ["AMD64"] = true;
+    version(PPC64)        vActiveVersions ["PPC64"] = true;
     version(Windows)      vActiveVersions ["Windows"] = true;
     version(Win32)        vActiveVersions ["Win32"] = true;
     version(Win64)        vActiveVersions ["Win64"] = true;
     version(linux)        vActiveVersions ["linux"] = true;
+    version(darwin)       vActiveVersions ["darwin"] = true;
     version(LittleEndian) vActiveVersions ["LittleEndian"] = true;
     version(BigEndian)    vActiveVersions ["BigEndian"] = true;
     version(D_InlineAsm)  vActiveVersions ["D_InlineAsm"] = true;
@@ -1030,8 +1058,9 @@
         };
     }
     
+version(DigitalMars)
     ReadConfigFile();
-    
+               
     // Rationalize the ignored modules list.
     foreach(StringN m; vModulesToNotice) {
         for (int i=0; i < vModulesToIgnore.length; i++) {
--- ./fdt.d.orig	Fri Feb 11 23:07:10 2005
+++ ./fdt.d	Sun Feb 20 20:18:12 2005
@@ -11,6 +11,10 @@
     version(linux) {
         import std.c.linux.linux;
     }
+    version(darwin) {
+        import std.c.darwin.darwin;
+        import std.string;
+    }
 }
     
 public {
@@ -106,6 +110,41 @@
         }
     }
 
+    version(darwin){
+        class FileDateTime 
+        {
+          ulong mDT;
+          bool mSet;
+          
+          this(ulong pInitValue) { mSet = true; mDT = pInitValue; }
+          this() { mSet = false; mDT = 0;}
+            
+          int opCmp(FileDateTime pOther)
+          {
+            if (mSet == false) 
+                return -1;
+
+            if (pOther.mSet == false)
+                return 1;
+                               
+            if (mDT > pOther.mDT) 
+                return 1;
+            if (mDT < pOther.mDT)
+                return -1;
+            return 0;
+          };
+
+          StringN toString()
+          {
+            if ( mSet == false )
+                return "not recorded";
+            else
+                return std.string.format("%d", mDT);
+          }
+                    
+        }
+    }
+
 }
 
 version(Windows) {
@@ -182,3 +221,42 @@
 
 }
 
+
+version(darwin) {
+
+/* seconds between timebase and last modification - zero if it doesn't exist. */
+FileDateTime GetFileTime(StringW pFileName)
+{
+    return GetFileTime( toUTF8(pFileName) );
+}
+
+FileDateTime GetFileTime(String pFileName)
+{
+    return GetFileTime( toUTF8(pFileName) );
+}
+
+FileDateTime GetFileTime(StringN pFileName)
+body {
+    FileDateTime lDateTime;
+
+    int lFileHandle;
+    struct_stat lFileInfo;
+    char *lFileName;
+
+    lFileName = toStringz(pFileName);
+    lFileHandle = std.c.darwin.darwin.open(lFileName, O_RDONLY);
+    if (lFileHandle != -1) {
+        if(std.c.darwin.darwin.fstat(lFileHandle, &lFileInfo) == 0 )
+            lDateTime = new FileDateTime(lFileInfo.st_mtime);
+        else
+            lDateTime = new FileDateTime();
+            
+        std.c.darwin.darwin.close(lFileHandle);
+    }
+    else
+        lDateTime = new FileDateTime();
+
+    return lDateTime;
+}
+
+}
--- ./pathex.d.orig	Sat Feb 12 20:02:16 2005
+++ ./pathex.d	Sun Feb 20 20:05:21 2005
@@ -60,6 +60,12 @@
             lPath = CurDir ~ lPath;
         };
     }
+    version(darwin){
+        if (lPath[0] != std.path.sep[0])
+        {
+            lPath = CurDir ~ lPath;
+        };
+    }
     if (pFinal && (lPath[length-1] != std.path.sep[0]) ){
         lPath ~= std.path.sep;
     };
--- ./source.d.orig	Tue Feb 15 12:45:14 2005
+++ ./source.d	Sun Feb 20 20:47:57 2005
@@ -24,6 +24,12 @@
             StringN LibExt=`lib`;
             StringN ObjExt=`o`;
         }
+
+        version(darwin) {
+            StringN ExeExt=``;
+            StringN LibExt=`a`;
+            StringN ObjExt=`o`;
+        }
         
     }
 
@@ -165,6 +171,9 @@
                         version(linux) {
                             lFindPos = std.string.find(lNextFile, std.path.sep ~ lNextModule ~ std.path.sep );
                         }
+                        version(darwin) {
+                            lFindPos = std.string.find(lNextFile, std.path.sep ~ lNextModule ~ std.path.sep );
+                        }
                         
                         if( lFindPos >= 0) {
                             lCanUse = false;
@@ -514,6 +523,11 @@
                                 }
                             }
                             version(linux) {
+                                if (getExt(lPragmaId) == LibExt) {
+                                    lPragmaId.length = lPragmaId.length - LibExt.length - 1;
+                                }
+                            }
+                            version(darwin) {
                                 if (getExt(lPragmaId) == LibExt) {
                                     lPragmaId.length = lPragmaId.length - LibExt.length - 1;
                                 }