Use of internal StrCmpIns function in stead of runtime stricmp/strcasecmp.

* Because of incompatible implementations of string comparison functions
  on different platforms (uppercase vs lowercase compares) it is better
  to have an scl specific StrCmpIns function. This fixes issues creating
  and validating complex structures in stepfile.cc.

src/clutils/Str.cc

@@ -96,6 +96,15 @@ const char * StrToConstant( const char * word, std::string & s ) {
     return const_cast<char *>( s.c_str() );
 }
 
+int StrCmpIns( const char * str1, const char * str2 ) {
+    char c1, c2;
+    while ((c1 = tolower(*str1)) == (c2 = tolower(*str2)) && c1 != '\0') {
+        str1++;
+        str2++;
+    }
+    return c1 - c2;
+}
+
 /**************************************************************//**
  ** \fn  PrettyTmpName (char * oldname)
  ** \returns  a new capitalized name in a static buffer

src/clutils/Str.h

@@ -21,23 +21,13 @@
 #include <string.h>
 #include <errordesc.h>
 
-
-//StrCmpIns - case-insensitive string compare. Original fct (replaced Sep 2011)
-//called PrettyTmpName(). Not doing so may affect sort order but that shouldn't hurt
-#if defined(__MSVC__)
-#define StrCmpIns(a,b) _stricmp(a,b)
-#elif defined(__BORLAND__)
-#define StrCmpIns(a,b) stricmp(a,b)
-#else
-#define StrCmpIns(a,b) strcasecmp(a,b)
-#endif
-
 SCL_UTILS_EXPORT char         ToLower( const char c );
 SCL_UTILS_EXPORT char         ToUpper( const char c );
 SCL_UTILS_EXPORT char    *    StrToLower( const char *, char * );
 SCL_UTILS_EXPORT const char * StrToLower( const char * word, std::string & s );
 SCL_UTILS_EXPORT const char * StrToUpper( const char * word, std::string & s );
 SCL_UTILS_EXPORT const char * StrToConstant( const char * word, std::string & s );
+SCL_UTILS_EXPORT int          StrCmpIns( const char *str1, const char *str2 );
 SCL_UTILS_EXPORT const char * PrettyTmpName( const char * oldname );
 SCL_UTILS_EXPORT char    *    PrettyNewName( const char * oldname );
 SCL_UTILS_EXPORT char    *    EntityClassName( char * oldname );