Adding an option to switch off ICONV support:

cmake -DCONNECT_WITH_ICONV=0

modified:
  storage/connect/CMakeLists.txt
  storage/connect/tabodbc.cpp
  storage/connect/tabodbc.h

storage/connect/CMakeLists.txt

@@ -210,13 +210,18 @@ ENDIF(CONNECT_WITH_ODBC)
 #
 # iconv
 #
-IF(UNIX)
+OPTION(CONNECT_WITH_ICONV "Compile CONNECT with iconv support" ON)
+
+IF(CONNECT_WITH_ICONV)
+  add_definitions(-DICONV_SUPPORT)
+  IF(UNIX)
     SET(ICONV_LIBRARY "")
-ELSE()
+  ELSE()
     #Windows
     # TODO: this is to be localized
     SET(ICONV_LIBRARY "D:/libxml/lib/iconv.lib")
-ENDIF(UNIX)
+  ENDIF(UNIX)
+ENDIF(CONNECT_WITH_ICONV)
 
 
 #

storage/connect/tabodbc.cpp

@@ -272,7 +272,7 @@ void TDBODBC::SetFile(PGLOBAL g, PSZ fn)
   DBQ = fn;
   } // end of SetFile
 
-#if !defined(NO_ICONV)
+#ifdef ICONV_SUPPORT
 /******************************************************************/
 /*  Convert an UTF-8 string to latin characters.                  */
 /******************************************************************/
@@ -290,7 +290,7 @@ int TDBODBC::Decode(iconv_t cd, char *utf, char *buf, size_t n)
   buf[n - o] = '\0';
   return rc;
   } // end of Decode
-#endif   // !NO_ICONV
+#endif   // ICONV_SUPPORT
 
 /***********************************************************************/
 /*  MakeSQL: make the SQL statement use with ODBC connection.          */
@@ -305,11 +305,11 @@ char *TDBODBC::MakeSQL(PGLOBAL g, bool cnt)
   bool    first = true;
   PTABLE  tablep = To_Table;
   PCOL    colp;
-#if !defined(NO_ICONV)
+#ifdef ICONV_SUPPORT
   iconv_t cd = iconv_open("ISO-8859-1", "UTF-8");
 #else
   void   *cd = NULL;
-#endif   // !NO_ICONV
+#endif   // ICONV_SUPPORT
 
   if (!cnt) {
     // Normal SQL statement to retrieve results
@@ -405,9 +405,9 @@ char *TDBODBC::MakeSQL(PGLOBAL g, bool cnt)
     strcat(strcat(sql, ownp), ".");
 
   strcat(sql, tabname);
-#if !defined(NO_ICONV)
+#ifdef ICONV_SUPPORT
   iconv_close(cd);
-#endif   // !NO_ICONV
+#endif   // ICONV_SUPPORT
 
 	if (To_Filter)
 	  strcat(strcat(sql, " WHERE "), To_Filter);

storage/connect/tabodbc.h

@@ -5,9 +5,9 @@
 /*                                                                     */
 /*  This file contains the TDBODBC classes declares.                   */
 /***********************************************************************/
-#if !defined(NO_ICONV)
+#ifdef ICONV_SUPPORT
 #include <iconv.h>
-#endif   // !NO_ICONV
+#endif   // ICONV_SUPPORT
 #include "colblk.h"
 
 typedef class ODBCDEF *PODEF;
@@ -88,12 +88,12 @@ class TDBODBC : public TDBASE {
 
  protected:
   // Internal functions
-#if !defined(NO_ICONV)
+#ifdef ICONV_SUPPORT
 	int		Decode(iconv_t cd, char *utf, char *buf, size_t n);
-#else     // NO_ICONV
+#else     // no ICONV_SUPPORT
 inline int Decode(void *cd, char *str, char *buf, size_t n)
 									{strncpy(buf, str, n); return 0;}
-#endif    // NO_ICONV
+#endif    // ICONV_SUPPORT
   char *MakeSQL(PGLOBAL g, bool cnt);
 //bool  MakeUpdate(PGLOBAL g, PSELECT selist);
 //bool  MakeInsert(PGLOBAL g);