Current state of my dtmail work.

Mostly #ifdefs and casts; also, do not redefine strcasestr().  This will
probably be needed for Linux too when compiling without -fpermissive.

cde/programs/dtmail/include/DtMail/Buffer.hh

@@ -103,7 +103,7 @@ class BufferMemory : public Buffer {
 	virtual int getSize(void);      // get total size of the buffer
 
     private:
-#if !defined(linux)
+#if !defined(linux) && !defined(CSRG_BASED)
 	class Chunk;
 #endif
 

cde/programs/dtmail/include/DtMail/DtMail.h

@@ -284,7 +284,7 @@ extern "C" {
     extern const char ** DtMailTransportEnumerate(DtMailSession,
 					DtMailEnv *);
 
-    extern DtMailTransportSubmit(DtMailTransport,
+    extern int DtMailTransportSubmit(DtMailTransport,
 					DtMailEnv *,
 					DtMailMessage);
 

cde/programs/dtmail/include/DtMail/Threads.hh

@@ -120,7 +120,7 @@ class Condition : public DtCPlusPlusAllocator {
 
     int state(void);
     int operator=(int);
-    operator += (int);
+    int operator += (int);
     operator int(void);
 
     void wait(void);