Fixes for SGI builds (STR#2174)

   1) C++ style comments in C files converted to /* */
   2) #warning's had to be #ifdef'ed out (#if !defined(sgi)..)
With these mods, 1.3.x compiles on IRIX 6.5 with no failures.



git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3@6680 ea41ed52-d2ee-0310-a9c1-e6b18d33e121

16 files changed, 237 insertions, 225 deletions

diff --git a/FL/filename.H b/FL/filename.H
index 5806a55b2..965b68d95 100644
--- a/FL/filename.H
+++ b/FL/filename.H
@@ -33,7 +33,7 @@
 /** \addtogroup filenames File names and URI utility functions 
     @{ */
 
-#  define FL_PATH_MAX 256 ///< all path buffers should use this length
+#  define FL_PATH_MAX 256 /**< all path buffers should use this length */
 /** Gets the file name from a path. \return a pointer to the char after the last slash, or to \a filename if there is none. */
 FL_EXPORT const char *fl_filename_name(const char * filename);
 FL_EXPORT const char *fl_filename_ext(const char *);
@@ -105,7 +105,7 @@ FL_EXPORT int fl_casenumericsort(struct dirent **, struct dirent **);
 FL_EXPORT int fl_numericsort(struct dirent **, struct dirent **);
 #  endif
 
-  typedef int (Fl_File_Sort_F)(struct dirent **, struct dirent **); ///< File sorting function. \see fl_filename_list()
+  typedef int (Fl_File_Sort_F)(struct dirent **, struct dirent **); /**< File sorting function. \see fl_filename_list() */
 
 #  if defined(__cplusplus)
 }
diff --git a/FL/fl_types.h b/FL/fl_types.h
index bc7259a90..e88cc6318 100644
--- a/FL/fl_types.h
+++ b/FL/fl_types.h
@@ -1,29 +1,29 @@
-//
-// "$Id: fl_types.h 6299 2008-09-18 19:09:34Z fabien $"
-//
-// Simple "C"-style types for the Fast Light Tool Kit (FLTK).
-//
-// Copyright 1998-2009 by Bill Spitzak and others.
-//
-// This library is free software; you can redistribute it and/or
-// modify it under the terms of the GNU Library General Public
-// License as published by the Free Software Foundation; either
-// version 2 of the License, or (at your option) any later version.
-//
-// This library is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-// Library General Public License for more details.
-//
-// You should have received a copy of the GNU Library General Public
-// License along with this library; if not, write to the Free Software
-// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
-// USA.
-//
-// Please report all bugs and problems on the following page:
-//
-//     http://www.fltk.org/str.php
-//
+/*
+ * "$Id: fl_types.h 6299 2008-09-18 19:09:34Z fabien $"
+ *
+ * Simple "C"-style types for the Fast Light Tool Kit (FLTK).
+ *
+ * Copyright 1998-2009 by Bill Spitzak and others.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+ * USA.
+ *
+ * Please report all bugs and problems on the following page:
+ *
+ *     http://www.fltk.org/str.php
+ */
 
 /** \file 
  *  This file contains simple "C"-style type definitions.
@@ -33,7 +33,7 @@
 #define FL_TYPES_H
 
 /** \name	Miscellaneous */
-/*@{*/	// group: Miscellaneous
+/*@{*/	/* group: Miscellaneous */
 
 /** unsigned char */
 typedef unsigned char uchar;
@@ -54,10 +54,10 @@ typedef const char *Fl_CString;
 /** 24-bit Unicode character + 8-bit indicator for keyboard flags */
 typedef unsigned int Fl_Unichar;
  
-/*@}*/	// group: Miscellaneous
+/*@}*/	/* group: Miscellaneous */
 
 #endif
 
-//
-// End of "$Id: fl_types.h 6299 2008-09-18 19:09:34Z fabien $".
-//
+/*
+ * End of "$Id: fl_types.h 6299 2008-09-18 19:09:34Z fabien $".
+ */
diff --git a/FL/fl_utf8.h b/FL/fl_utf8.h
index 885d03ff2..f365de5be 100644
--- a/FL/fl_utf8.h
+++ b/FL/fl_utf8.h
@@ -1,31 +1,32 @@
-// "$Id: $"
-//
-// Author: Jean-Marc Lienher ( http://oksid.ch )
-// Copyright 2000-2009 by O'ksi'D.
-//
-// This library is free software; you can redistribute it and/or
-// modify it under the terms of the GNU Library General Public
-// License as published by the Free Software Foundation; either
-// version 2 of the License, or (at your option) any later version.
-//
-// This library is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-// Library General Public License for more details.
-//
-// You should have received a copy of the GNU Library General Public
-// License along with this library; if not, write to the Free Software
-// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
-// USA.
-//
-// Please report all bugs and problems on the following page:
-//
-//     http://www.fltk.org/str.php
-
-
-// Merged in some functionality from the fltk-2 version. IMM.
-// The following code is an attempt to merge the functions incorporated in FLTK2
-// with the functions provided in OksiD's fltk-1.1.6-utf8 port
+/* "$Id: $"
+ *
+ * Author: Jean-Marc Lienher ( http://oksid.ch )
+ * Copyright 2000-2009 by O'ksi'D.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+ * USA.
+ *
+ * Please report all bugs and problems on the following page:
+ *
+ *     http://www.fltk.org/str.php
+ */
+
+/* Merged in some functionality from the fltk-2 version. IMM.
+ * The following code is an attempt to merge the functions incorporated in FLTK2
+ * with the functions provided in OksiD's fltk-1.1.6-utf8 port
+ */
 
 /*** NOTE : all functions are LIMITED to 24 bits Unicode values !!! ***/
 
@@ -115,12 +116,12 @@ FL_EXPORT unsigned fl_utf8fromwc(char *dst, unsigned dstlen, const wchar_t *src,
 /* F2: Convert a UTF8 string into ASCII, eliding untranslatable glyphs */
 FL_EXPORT unsigned fl_utf8toa (const char *src, unsigned srclen, char *dst, unsigned dstlen);
 /* OD: convert UTF-8 string to latin1 */
-//FL_EXPORT int fl_utf2latin1(const unsigned char *src, int srclen, char *dst);
+/* FL_EXPORT int fl_utf2latin1(const unsigned char *src, int srclen, char *dst); */
 
 /* F2: Convert 8859-1 string to UTF8 */
 FL_EXPORT unsigned fl_utf8froma (char *dst, unsigned dstlen, const char *src, unsigned srclen);
 /* OD: convert latin1 str to UTF-8 */
-//FL_EXPORT int fl_latin12utf(const unsigned char *src, int srclen, char *dst);
+/* FL_EXPORT int fl_latin12utf(const unsigned char *src, int srclen, char *dst); */
 
 /* F2: Returns true if the current O/S locale is UTF8 */
 FL_EXPORT int fl_utf8locale();
@@ -141,7 +142,7 @@ FL_EXPORT char* fl_utf2mbcs(const char *src);
 /* F2: Convert a local multi-byte encoding to UTF8 - mainly for win32? */
 FL_EXPORT unsigned fl_utf8from_mb(char *dst, unsigned dstlen, const char *src, unsigned srclen);
 /* OD: Convert a local multi-byte encoding to UTF8 */
-//FL_EXPORT char* fl_mbcs2utf(const char *src);
+/* FL_EXPORT char* fl_mbcs2utf(const char *src); */
 
 /*****************************************************************************/
 #ifdef WIN32
@@ -152,9 +153,10 @@ FL_EXPORT char *fl_utf8_to_locale(const char *s, int len, unsigned int codepage)
 FL_EXPORT char *fl_locale_to_utf8(const char *s, int len, unsigned int codepage);
 #endif
 
-/*****************************************************************************/
-// The following functions are intended to provide portable, UTF8 aware
-// versions of standard functions
+/*****************************************************************************
+ * The following functions are intended to provide portable, UTF8 aware
+ * versions of standard functions
+ */
 
 /* OD: UTF8 aware strncasecmp - converts to lower case Unicode and tests */
 FL_EXPORT int fl_utf_strncasecmp(const char *s1, const char *s2, int n);
@@ -227,8 +229,8 @@ FL_EXPORT char fl_make_path( const char *path );
 #endif /* __cplusplus */
 
 
-#endif // _HAVE_FL_UTF8_HDR_
+#endif /* _HAVE_FL_UTF8_HDR_ */
 
-//
-// End of "$Id: $".
-//
+/*
+ * End of "$Id: $".
+ */
diff --git a/src/fl_call_main.c b/src/fl_call_main.c
index b244498de..88be74fde 100644
--- a/src/fl_call_main.c
+++ b/src/fl_call_main.c
@@ -64,7 +64,7 @@ extern int main(int, char *[]);
 #    define __argv _argv
 #  endif /* BORLAND5 */
 
-//static int mbcs2utf(const char *s, int l, char *dst, unsigned dstlen)
+/* static int mbcs2utf(const char *s, int l, char *dst, unsigned dstlen) */
 static int mbcs2utf(const char *s, int l, char *dst)
 {
   static xchar *mbwbuf;
@@ -73,7 +73,7 @@ static int mbcs2utf(const char *s, int l, char *dst)
   dstlen = (l * 6) + 6;
   mbwbuf = (xchar*)malloc(dstlen * sizeof(xchar));
   l = mbstowcs(mbwbuf, s, l);
-//l = fl_unicode2utf(mbwbuf, l, dst);
+/* l = fl_unicode2utf(mbwbuf, l, dst); */
   l = fl_utf8fromwc(dst, dstlen, mbwbuf, l);
   dst[l] = 0;
   free(mbwbuf);
@@ -108,17 +108,17 @@ int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance,
     int l;
     unsigned dstlen;
     if (__wargv ) {
-      for (l = 0; __wargv[i] && __wargv[i][l]; l++) {}; // is this just wstrlen???
+      for (l = 0; __wargv[i] && __wargv[i][l]; l++) {}; /* is this just wstrlen??? */
       dstlen = (l * 5) + 1;
       ar[i] = (char*) malloc(dstlen);
-//    ar[i][fl_unicode2utf(__wargv[i], l, ar[i])] = 0;
+/*    ar[i][fl_unicode2utf(__wargv[i], l, ar[i])] = 0; */
       dstlen = fl_utf8fromwc(ar[i], dstlen, __wargv[i], l);
       ar[i][dstlen] = 0;
     } else {
       for (l = 0; __argv[i] && __argv[i][l]; l++) {};
       dstlen = (l * 5) + 1;
       ar[i] = (char*) malloc(dstlen);
-//      ar[i][mbcs2utf(__argv[i], l, ar[i], dstlen)] = 0;
+/*      ar[i][mbcs2utf(__argv[i], l, ar[i], dstlen)] = 0; */
       ar[i][mbcs2utf(__argv[i], l, ar[i])] = 0;
     }
     i++;
@@ -139,7 +139,7 @@ int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance,
 #elif defined(__hpux)
 /* This code to prevent "empty translation unit" or similar warnings... */
 static void dummy(void) {}
-#endif // WIN32 && !FL_DLL && !__GNUC__
+#endif /* WIN32 && !FL_DLL && !__GNUC__ */
 
 /*
  * End of "$Id$".
diff --git a/src/fl_font_x.cxx b/src/fl_font_x.cxx
index ec729bcb4..f57bac765 100644
--- a/src/fl_font_x.cxx
+++ b/src/fl_font_x.cxx
@@ -298,7 +298,11 @@ double fl_width(unsigned int c) {
 
 
 void fl_text_extents(const char *c, int n, int &dx, int &dy, int &W, int &H) {
+
+#if !defined(WIN32) && !defined(sgi) || defined(CYGWIN)
 #warning fl_text_extents is only a test stub in Xlib build at present
+#endif
+
   W = 0; H = 0;
   fl_measure(c, W, H, 0);
   dx = 0;
diff --git a/src/fl_utf.c b/src/fl_utf.c
index 490d46ab0..18355f428 100644
--- a/src/fl_utf.c
+++ b/src/fl_utf.c
@@ -22,7 +22,7 @@
  *     http://www.fltk.org/str.php
  */
 
-// Modified to obey rfc3629, which limits unicode to 0-0x10ffff
+/* Modified to obey rfc3629, which limits unicode to 0-0x10ffff */
 
 #include <FL/fl_utf8.h>
 #include <string.h>
@@ -41,7 +41,7 @@
    \c NULL, only the length of the utf-8 sequence is calculated
    \return length of the sequence in bytes
    */
-  //FL_EXPORT int fl_unichar_to_utf8(Fl_Unichar uc, char *text);  
+  /* FL_EXPORT int fl_unichar_to_utf8(Fl_Unichar uc, char *text); */
   
   /** @} */  
   
@@ -55,10 +55,10 @@
    \param[in] uc Unicode character
    \return length of the sequence in bytes
    */
-  //FL_EXPORT int fl_utf8_size(Fl_Unichar uc);
+  /* FL_EXPORT int fl_utf8_size(Fl_Unichar uc); */
   
   /** @} */  
-#endif // 0
+#endif /* 0 */
   
 /* Set to 1 to turn bad UTF8 bytes into ISO-8859-1. If this is to zero
    they are instead turned into the Unicode REPLACEMENT CHARACTER, of
@@ -87,8 +87,9 @@
 #define STRICT_RFC3629 0
 
 #if ERRORS_TO_CP1252
-// Codes 0x80..0x9f from the Microsoft CP1252 character set, translated
-// to Unicode:
+/* Codes 0x80..0x9f from the Microsoft CP1252 character set, translated
+ * to Unicode:
+ */
 static unsigned short cp1252[32] = {
   0x20ac, 0x0081, 0x201a, 0x0192, 0x201e, 0x2026, 0x2020, 0x2021,
   0x02c6, 0x2030, 0x0160, 0x2039, 0x0152, 0x008d, 0x017d, 0x008f,
@@ -153,11 +154,11 @@ unsigned fl_utf8decode(const char* p, const char* end, int* len)
     goto UTF8_3;
 #if STRICT_RFC3629
   } else if (c == 0xed) {
-    // RFC 3629 says surrogate chars are illegal.
+    /* RFC 3629 says surrogate chars are illegal. */
     if (((unsigned char*)p)[1] >= 0xa0) goto FAIL;
     goto UTF8_3;
   } else if (c == 0xef) {
-    // 0xfffe and 0xffff are also illegal characters
+    /* 0xfffe and 0xffff are also illegal characters */
     if (((unsigned char*)p)[1]==0xbf &&
 	((unsigned char*)p)[2]>=0xbe) goto FAIL;
     goto UTF8_3;
@@ -178,7 +179,7 @@ unsigned fl_utf8decode(const char* p, const char* end, int* len)
     if (p+3 >= end || (p[2]&0xc0) != 0x80 || (p[3]&0xc0) != 0x80) goto FAIL;
     *len = 4;
 #if STRICT_RFC3629
-    // RFC 3629 says all codes ending in fffe or ffff are illegal:
+    /* RFC 3629 says all codes ending in fffe or ffff are illegal: */
     if ((p[1]&0xf)==0xf &&
 	((unsigned char*)p)[2] == 0xbf &&
 	((unsigned char*)p)[3] >= 0xbe) goto FAIL;
@@ -189,7 +190,7 @@ unsigned fl_utf8decode(const char* p, const char* end, int* len)
       ((p[2] & 0x3f) << 6) +
       ((p[3] & 0x3f));
   } else if (c == 0xf4) {
-    if (((unsigned char*)p)[1] > 0x8f) goto FAIL; // after 0x10ffff
+    if (((unsigned char*)p)[1] > 0x8f) goto FAIL; /* after 0x10ffff */
     goto UTF8_4;
   } else {
   FAIL:
@@ -197,7 +198,7 @@ unsigned fl_utf8decode(const char* p, const char* end, int* len)
 #if ERRORS_TO_ISO8859_1
     return c;
 #else
-    return 0xfffd; // Unicode REPLACEMENT CHARACTER
+    return 0xfffd; /* Unicode REPLACEMENT CHARACTER */
 #endif
   }
 }
@@ -224,9 +225,9 @@ const char* fl_utf8fwd(const char* p, const char* start, const char* end)
 {
   const char* a;
   int len;
-  // if we are not pointing at a continuation character, we are done:
+  /* if we are not pointing at a continuation character, we are done: */
   if ((*p&0xc0) != 0x80) return p;
-  // search backwards for a 0xc0 starting the character:
+  /* search backwards for a 0xc0 starting the character: */
   for (a = p-1; ; --a) {
     if (a < start) return p;
     if (!(a[0]&0x80)) return p;
@@ -255,9 +256,9 @@ const char* fl_utf8back(const char* p, const char* start, const char* end)
 {
   const char* a;
   int len;
-  // if we are not pointing at a continuation character, we are done:
+  /* if we are not pointing at a continuation character, we are done: */
   if ((*p&0xc0) != 0x80) return p;
-  // search backwards for a 0xc0 starting the character:
+  /* search backwards for a 0xc0 starting the character: */
   for (a = p-1; ; --a) {
     if (a < start) return p;
     if (!(a[0]&0x80)) return p;
@@ -280,7 +281,7 @@ int fl_utf8bytes(unsigned ucs) {
   } else if (ucs < 0x10ffffU) {
     return 4;
   } else {
-    return 3; // length of the illegal character encoding
+    return 3; /* length of the illegal character encoding */
   }
 }
 
@@ -320,7 +321,7 @@ int fl_utf8encode(unsigned ucs, char* buf) {
     buf[3] = 0x80 | (ucs & 0x3F);
     return 4;
   } else {
-    // encode 0xfffd:
+    /* encode 0xfffd: */
     buf[0] = 0xefU;
     buf[1] = 0xbfU;
     buf[2] = 0xbdU;
@@ -367,7 +368,7 @@ unsigned fl_utf8toUtf16(const char* src, unsigned srclen,
   unsigned count = 0;
   if (dstlen) for (;;) {
     if (p >= e) {dst[count] = 0; return count;}
-    if (!(*p & 0x80)) { // ascii
+    if (!(*p & 0x80)) { /* ascii */
       dst[count] = *p++;
     } else {
       int len; unsigned ucs = fl_utf8decode(p,e,&len);
@@ -375,7 +376,7 @@ unsigned fl_utf8toUtf16(const char* src, unsigned srclen,
       if (ucs < 0x10000) {
 	dst[count] = ucs;
       } else {
-	// make a surrogate pair:
+	/* make a surrogate pair: */
 	if (count+2 >= dstlen) {dst[count] = 0; count += 2; break;}
 	dst[count] = (((ucs-0x10000u)>>10)&0x3ff) | 0xd800;
 	dst[++count] = (ucs&0x3ff) | 0xdc00;
@@ -383,7 +384,7 @@ unsigned fl_utf8toUtf16(const char* src, unsigned srclen,
     }
     if (++count == dstlen) {dst[count-1] = 0; break;}
   }
-  // we filled dst, measure the rest:
+  /* we filled dst, measure the rest: */
   while (p < e) {
     if (!(*p & 0x80)) p++;
     else {
@@ -410,7 +411,7 @@ unsigned fl_utf8towc(const char* src, unsigned srclen,
   unsigned count = 0;
   if (dstlen) for (;;) {
     if (p >= e) {dst[count] = 0; return count;}
-    if (!(*p & 0x80)) { // ascii
+    if (!(*p & 0x80)) { /* ascii */
       dst[count] = *p++;
     } else {
       int len; unsigned ucs = fl_utf8decode(p,e,&len);
@@ -419,7 +420,7 @@ unsigned fl_utf8towc(const char* src, unsigned srclen,
     }
     if (++count == dstlen) {dst[count-1] = 0; break;}
   }
-  // we filled dst, measure the rest:
+  /* we filled dst, measure the rest: */
   while (p < e) {
     if (!(*p & 0x80)) p++;
     else {
@@ -462,7 +463,7 @@ unsigned fl_utf8toa(const char* src, unsigned srclen,
     unsigned char c;
     if (p >= e) {dst[count] = 0; return count;}
     c = *(unsigned char*)p;
-    if (c < 0xC2) { // ascii or bad code
+    if (c < 0xC2) { /* ascii or bad code */
       dst[count] = c;
       p++;
     } else {
@@ -473,7 +474,7 @@ unsigned fl_utf8toa(const char* src, unsigned srclen,
     }
     if (++count >= dstlen) {dst[count-1] = 0; break;}
   }
-  // we filled dst, measure the rest:
+  /* we filled dst, measure the rest: */
   while (p < e) {
     if (!(*p & 0x80)) p++;
     else {
@@ -524,17 +525,17 @@ unsigned fl_utf8fromwc(char* dst, unsigned dstlen,
     if (ucs < 0x80U) {
       dst[count++] = ucs;
       if (count >= dstlen) {dst[count-1] = 0; break;}
-    } else if (ucs < 0x800U) { // 2 bytes
+    } else if (ucs < 0x800U) { /* 2 bytes */
       if (count+2 >= dstlen) {dst[count] = 0; count += 2; break;}
       dst[count++] = 0xc0 | (ucs >> 6);
       dst[count++] = 0x80 | (ucs & 0x3F);
 #ifdef _WIN32
     } else if (ucs >= 0xd800 && ucs <= 0xdbff && i < srclen &&
 	       src[i] >= 0xdc00 && src[i] <= 0xdfff) {
-      // surrogate pair
+      /* surrogate pair */
       unsigned ucs2 = src[i++];
       ucs = 0x10000U + ((ucs&0x3ff)<<10) + (ucs2&0x3ff);
-      // all surrogate pairs turn into 4-byte utf8
+      /* all surrogate pairs turn into 4-byte utf8 */
 #else
     } else if (ucs >= 0x10000) {
       if (ucs > 0x10ffff) {
@@ -551,24 +552,24 @@ unsigned fl_utf8fromwc(char* dst, unsigned dstlen,
 #ifndef _WIN32
     J1:
 #endif
-      // all others are 3 bytes:
+      /* all others are 3 bytes: */
       if (count+3 >= dstlen) {dst[count] = 0; count += 3; break;}
       dst[count++] = 0xe0 | (ucs >> 12);
       dst[count++] = 0x80 | ((ucs >> 6) & 0x3F);
       dst[count++] = 0x80 | (ucs & 0x3F);
     }
   }
-  // we filled dst, measure the rest:
+  /* we filled dst, measure the rest: */
   while (i < srclen) {
     unsigned ucs = src[i++];
     if (ucs < 0x80U) {
       count++;
-    } else if (ucs < 0x800U) { // 2 bytes
+    } else if (ucs < 0x800U) { /* 2 bytes */
       count += 2;
 #ifdef _WIN32
     } else if (ucs >= 0xd800 && ucs <= 0xdbff && i < srclen-1 &&
 	       src[i+1] >= 0xdc00 && src[i+1] <= 0xdfff) {
-      // surrogate pair
+      /* surrogate pair */
       ++i;
 #else
     } else if (ucs >= 0x10000 && ucs <= 0x10ffff) {
@@ -613,13 +614,13 @@ unsigned fl_utf8froma(char* dst, unsigned dstlen,
     if (ucs < 0x80U) {
       dst[count++] = ucs;
       if (count >= dstlen) {dst[count-1] = 0; break;}
-    } else { // 2 bytes (note that CP1252 translate could make 3 bytes!)
+    } else { /* 2 bytes (note that CP1252 translate could make 3 bytes!) */
       if (count+2 >= dstlen) {dst[count] = 0; count += 2; break;}
       dst[count++] = 0xc0 | (ucs >> 6);
       dst[count++] = 0x80 | (ucs & 0x3F);
     }
   }
-  // we filled dst, measure the rest:
+  /* we filled dst, measure the rest: */
   while (p < e) {
     unsigned char ucs = *(unsigned char*)p++;
     if (ucs < 0x80U) {
@@ -654,7 +655,7 @@ int fl_utf8locale(void) {
     ret = GetACP() == CP_UTF8;
 #else
     char* s;
-    ret = 1; // assumme UTF-8 if no locale
+    ret = 1; /* assumme UTF-8 if no locale */
     if (((s = getenv("LC_CTYPE")) && *s) ||
 	((s = getenv("LC_ALL"))   && *s) ||
 	((s = getenv("LANG"))     && *s)) {
@@ -696,13 +697,14 @@ unsigned fl_utf8to_mb(const char* src, unsigned srclen,
       fl_utf8towc(src, srclen, buf, length+1);
     }
     if (dstlen) {
-      // apparently this does not null-terminate, even though msdn
-      // documentation claims it does:
+      /* apparently this does not null-terminate, even though msdn
+       * documentation claims it does:
+       */
       ret =
         WideCharToMultiByte(GetACP(), 0, buf, length, dst, dstlen, 0, 0);
       dst[ret] = 0;
     }
-    // if it overflows or measuring length, get the actual length:
+    /* if it overflows or measuring length, get the actual length: */
     if (dstlen==0 || ret >= dstlen-1)
       ret =
 	WideCharToMultiByte(GetACP(), 0, buf, length, 0, 0, 0, 0);
@@ -725,10 +727,10 @@ unsigned fl_utf8to_mb(const char* src, unsigned srclen,
     }
     if (buf != lbuf) free((void*)buf);
     if (ret >= 0) return (unsigned)ret;
-    // on any errors we return the UTF-8 as raw text...
+    /* on any errors we return the UTF-8 as raw text...*/
 #endif
   }
-  // identity transform:
+  /* identity transform: */
   if (srclen < dstlen) {
     memcpy(dst, src, srclen);
     dst[srclen] = 0;
@@ -792,10 +794,10 @@ unsigned fl_utf8from_mb(char* dst, unsigned dstlen,
       if (buf != lbuf) free((void*)buf);
       return ret;
     }
-    // errors in conversion return the UTF-8 unchanged
+    /* errors in conversion return the UTF-8 unchanged */
 #endif
   }
-  // identity transform:
+  /* identity transform: */
   if (srclen < dstlen) {
     memcpy(dst, src, srclen);
     dst[srclen] = 0;
diff --git a/src/flstring.h b/src/flstring.h
index 7e71df081..59b43b8ae 100644
--- a/src/flstring.h
+++ b/src/flstring.h
@@ -51,13 +51,14 @@
 #  if defined(WIN32) && !defined(__CYGWIN__)
 #    define strcasecmp(s,t)	_stricmp((s), (t))
 #    define strncasecmp(s,t,n)	_strnicmp((s), (t), (n))
-// Visual C++ 2005 incorrectly displays a warning about the use of POSIX APIs
-// on Windows, which is supposed to be POSIX compliant...  Some of these
-// functions are also defined in ISO C99...
+/* Visual C++ 2005 incorrectly displays a warning about the use of POSIX APIs
+ * on Windows, which is supposed to be POSIX compliant...  Some of these
+ * functions are also defined in ISO C99...
+ */
 #    ifndef __WATCOMC__
 #      define strdup _strdup
 #      define unlink _unlink
-#    endif // !__WATCOMC__
+#    endif /* !__WATCOMC__ */
 #  elif defined(__EMX__)
 #    define strcasecmp(s,t)	stricmp((s), (t))
 #    define strncasecmp(s,t,n)	strnicmp((s), (t), (n))
diff --git a/src/glut_font.cxx b/src/glut_font.cxx
index 826c240f3..a1c3c3a36 100644
--- a/src/glut_font.cxx
+++ b/src/glut_font.cxx
@@ -114,7 +114,7 @@ void glutStrokeString(void* fontID, const unsigned char *string) {
   * A newline will simply translate the next character's insertion
   * point back to the start of the line and down one line.
   */
-#if !defined(WIN32) || defined(CYGWIN)
+#if !defined(WIN32) && !defined(sgi) || defined(CYGWIN)
 #warning FIXME This needs to be UTF aware now
 #endif
 
diff --git a/src/xutf8/case.c b/src/xutf8/case.c
index 762c6f92d..aad8afe9b 100644
--- a/src/xutf8/case.c
+++ b/src/xutf8/case.c
@@ -1,26 +1,27 @@
-// "$Id: $"
-//
-// Author: Jean-Marc Lienher ( http://oksid.ch )
-// Copyright 2000-2003 by O'ksi'D.
-//
-// This library is free software; you can redistribute it and/or
-// modify it under the terms of the GNU Library General Public
-// License as published by the Free Software Foundation; either
-// version 2 of the License, or (at your option) any later version.
-//
-// This library is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-// Library General Public License for more details.
-//
-// You should have received a copy of the GNU Library General Public
-// License along with this library; if not, write to the Free Software
-// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
-// USA.
-//
-// Please report all bugs and problems on the following page:
-//
-//     http://www.fltk.org/str.php
+/* "$Id: $"
+ *
+ * Author: Jean-Marc Lienher ( http://oksid.ch )
+ * Copyright 2000-2003 by O'ksi'D.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+ * USA.
+ *
+ * Please report all bugs and problems on the following page:
+ *
+ *     http://www.fltk.org/str.php
+ */
 
 /*
  * This file is required on all platforms for utf8 support
diff --git a/src/xutf8/is_right2left.c b/src/xutf8/is_right2left.c
index 8f1327955..7ef5af7df 100644
--- a/src/xutf8/is_right2left.c
+++ b/src/xutf8/is_right2left.c
@@ -1,26 +1,27 @@
-// "$Id: $"
-//
-// Author: Jean-Marc Lienher ( http://oksid.ch )
-// Copyright 2000-2003 by O'ksi'D.
-//
-// This library is free software; you can redistribute it and/or
-// modify it under the terms of the GNU Library General Public
-// License as published by the Free Software Foundation; either
-// version 2 of the License, or (at your option) any later version.
-//
-// This library is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-// Library General Public License for more details.
-//
-// You should have received a copy of the GNU Library General Public
-// License along with this library; if not, write to the Free Software
-// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
-// USA.
-//
-// Please report all bugs and problems on the following page:
-//
-//     http://www.fltk.org/str.php
+/* "$Id: $"
+ *
+ * Author: Jean-Marc Lienher ( http://oksid.ch )
+ * Copyright 2000-2003 by O'ksi'D.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+ * USA.
+ *
+ * Please report all bugs and problems on the following page:
+ *
+ *     http://www.fltk.org/str.php
+ */
 
 /*
  * This file is required on all platforms for utf8 support
diff --git a/src/xutf8/is_spacing.c b/src/xutf8/is_spacing.c
index e48175fd7..548dd84ff 100644
--- a/src/xutf8/is_spacing.c
+++ b/src/xutf8/is_spacing.c
@@ -1,26 +1,27 @@
-// "$Id: $"
-//
-// Author: Jean-Marc Lienher ( http://oksid.ch )
-// Copyright 2000-2003 by O'ksi'D.
-//
-// This library is free software; you can redistribute it and/or
-// modify it under the terms of the GNU Library General Public
-// License as published by the Free Software Foundation; either
-// version 2 of the License, or (at your option) any later version.
-//
-// This library is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-// Library General Public License for more details.
-//
-// You should have received a copy of the GNU Library General Public
-// License along with this library; if not, write to the Free Software
-// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
-// USA.
-//
-// Please report all bugs and problems on the following page:
-//
-//     http://www.fltk.org/str.php
+/* "$Id: $"
+ *
+ * Author: Jean-Marc Lienher ( http://oksid.ch )
+ * Copyright 2000-2003 by O'ksi'D.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+ * USA.
+ *
+ * Please report all bugs and problems on the following page:
+ *
+ *     http://www.fltk.org/str.php
+ */
 
 /*
  * This file is required on all platforms for utf8 support
diff --git a/src/xutf8/keysym2Ucs.c b/src/xutf8/keysym2Ucs.c
index 57fe15be5..028b6cef6 100644
--- a/src/xutf8/keysym2Ucs.c
+++ b/src/xutf8/keysym2Ucs.c
@@ -36,7 +36,7 @@ long XKeysymToUcs(KeySym keysym)
 	return (long) KeySymToUcs4(keysym);
 }
 
-#endif // X11 only
+#endif /* X11 only */
 
 /*
  * End of "$Id$".
diff --git a/src/xutf8/ucs2fontmap.c b/src/xutf8/ucs2fontmap.c
index 5539a96ef..50535f6ef 100644
--- a/src/xutf8/ucs2fontmap.c
+++ b/src/xutf8/ucs2fontmap.c
@@ -63,16 +63,16 @@ typedef struct {
 #include "headers/dingbats_.h"
   
    /*************** conv_gen.c ************/
-//const
+/*const*/
 int ucs2fontmap(char *s, unsigned int ucs, int enc)
 {
   switch(enc) {
-  case 0:	//iso10646-1
+  case 0:	/* iso10646-1 */
     s[0] = (char) ((ucs & 0xFF00) >> 8);
     s[1] = (char) (ucs & 0xFF);
     return 0;
     break;
-  case 1:	//iso8859-1
+  case 1:	/* iso8859-1 */
     if (ucs <= 0x00FF) {
       if (ucs >= 0x0001) {
         s[0] = 0;
@@ -81,7 +81,7 @@ int ucs2fontmap(char *s, unsigned int ucs, int enc)
       }
     }
     break;
-  case 2:	//iso8859-2
+  case 2:	/* iso8859-2 */
     if (ucs <= 0x00a0) {
       s[0] = 0;
       s[1] = (char) ucs;
@@ -100,102 +100,102 @@ int ucs2fontmap(char *s, unsigned int ucs, int enc)
       }	
     }
     break;
-  case 3:	//iso8859-3
+  case 3:	/* iso8859-3 */
     if (iso8859_3_wctomb(NULL, (unsigned char*)s, ucs, 2) > 0) {
       return 3;
     } 
     break;
-  case 4:	//iso8859-4
+  case 4:	/* iso8859-4 */
     if (iso8859_4_wctomb(NULL, (unsigned char*)s, ucs, 2) > 0) {
       return 4;
     } 
     break;
-  case 5:	//iso8859-5
+  case 5:	/* iso8859-5 */
     if (iso8859_5_wctomb(NULL, (unsigned char*)s, ucs, 2) > 0) {
       return 5;
     } 
     break;
-  case 6:	//iso8859-6
+  case 6:	/* iso8859-6 */
     if (iso8859_6_wctomb(NULL, (unsigned char*)s, ucs, 2) > 0) {
       return 6;
     } 
     break;
-  case 7:	//iso8859-7
+  case 7:	/* iso8859-7 */
     if (iso8859_7_wctomb(NULL, (unsigned char*)s, ucs, 2) > 0) {
       return 7;
     } 
     break;
-  case 8:	//iso8859-8
+  case 8:	/* iso8859-8 */
     if (iso8859_8_wctomb(NULL, (unsigned char*)s, ucs, 2) > 0) {
       return 8;
     } 
     break;
-  case 9:	//iso8859-9
+  case 9:	/* iso8859-9 */
     if (iso8859_9_wctomb(NULL, (unsigned char*)s, ucs, 2) > 0) {
       return 9;
     } 
     break;
-  case 10:	//iso8859-10
+  case 10:	/* iso8859-10 */
     if (iso8859_10_wctomb(NULL, (unsigned char*)s, ucs, 2) > 0) {
       return 10;
     } 
     break;
-  case 25:	//iso8859-11
+  case 25:	/* iso8859-11 */
     if (iso8859_11_wctomb(NULL, (unsigned char*)s, ucs, 2) > 0) {
       return 25;
     } 
     break;
-  case 11:	//iso8859-13
+  case 11:	/* iso8859-13 */
     if (iso8859_13_wctomb(NULL, (unsigned char*)s, ucs, 2) > 0) {
       return 11;
     } 
     break;
-  case 12:	//iso8859-14
+  case 12:	/* iso8859-14 */
     if (iso8859_14_wctomb(NULL, (unsigned char*)s, ucs, 2) > 0) {
       return 12;
     } 
     break;
-  case 13:	//iso8859-15
+  case 13:	/* iso8859-15 */
     if (iso8859_15_wctomb(NULL, (unsigned char*)s, ucs, 2) > 0) {
       return 13;
     } 
     break;
-  case 14:	//koi8-r
+  case 14:	/* koi8-r */
     if (koi8_r_wctomb(NULL, (unsigned char*)s, ucs, 2) > 0) {
       return 14;
     } 
     break;
-  case 15:	//big5
+  case 15:	/* big5 */
     if (big5_wctomb(NULL, (unsigned char*)s, ucs, 2) > 0) {
       return 15;
     } 
     break;
-  case 16:	//ksc5601.1987-0
+  case 16:	/* ksc5601.1987-0 */
     if (ksc5601_wctomb(NULL, (unsigned char*)s, ucs, 2) > 0) {
       return 16;
     } 
     break;
-  case 17:	//gb2312.1980-0
+  case 17:	/* gb2312.1980-0 */
     if (gb2312_wctomb(NULL, (unsigned char*)s, ucs, 2) > 0) {
       return 17;
     } 
     break;
-  case 18:	//jisx0201.1976-0
+  case 18:	/* jisx0201.1976-0 */
     if (jisx0201_wctomb(NULL, (unsigned char*)s, ucs, 2) > 0) {
       return 18;
     } 
     break;
-  case 19:	//jisx0208.1983-0
+  case 19:	/* jisx0208.1983-0 */
     if (jisx0208_wctomb(NULL, (unsigned char*)s, ucs, 2) > 0) {
       return 19;
     } 
     break;
-  case 20:	//jisx0212.1990-0
+  case 20:	/* jisx0212.1990-0 */
     if (jisx0212_wctomb(NULL, (unsigned char*)s, ucs, 2) > 0) {
       return 20;
     } 
     break;
-  case 21:	//symbol
+  case 21:	/* symbol */
     if (ucs <= 0x00F7) {
       if (ucs >= 0x0020) {
         s[0] = 0;
@@ -246,7 +246,7 @@ int ucs2fontmap(char *s, unsigned int ucs, int enc)
       }
     }
     break;
-  case 22:	//dingbats
+  case 22:	/* dingbats */
     if (ucs <= 0x00A0) {
       if (ucs >= 0x0020) {
         s[0] = 0;
@@ -285,12 +285,12 @@ int ucs2fontmap(char *s, unsigned int ucs, int enc)
       }
     }
     break;
-  case 23:	//koi8-u
+  case 23:	/* koi8-u */
     if (koi8_u_wctomb(NULL, (unsigned char*)s, ucs, 2) > 0) {
       return 23;
     } 
     break;
-  case 24:	//microsoft-cp1251
+  case 24:	/* microsoft-cp1251 */
     if (cp1251_wctomb(NULL, (unsigned char*)s, ucs, 2) > 0) {
       return 24;
     } 
@@ -301,7 +301,7 @@ int ucs2fontmap(char *s, unsigned int ucs, int enc)
   return -1;
 };
 
-//const
+/*const*/
 int encoding_number(const char *enc)
 {
   if (!enc || !strncmp(enc, "iso10646-1", 10)) {
diff --git a/src/xutf8/utf8Input.c b/src/xutf8/utf8Input.c
index b54619184..7fe9ff17e 100644
--- a/src/xutf8/utf8Input.c
+++ b/src/xutf8/utf8Input.c
@@ -367,7 +367,7 @@ XConvertEucToUtf8(
 
 	if (strstr(locale, "ja")) {	
 		return XConvertEucJpToUtf8(buffer_return, len);
-	} else if (strstr(locale, "Big5") || strstr(locale, "big5")) { // BIG5
+	} else if (strstr(locale, "Big5") || strstr(locale, "big5")) { /* BIG5 */
 		return XConvertBig5ToUtf8(buffer_return, len);
 	} else if (strstr(locale, "zh") || strstr(locale, "chinese-")) {
 		if (strstr(locale, "TW") || strstr(locale, "chinese-t")) {
@@ -432,7 +432,7 @@ XUtf8LookupString(
         return len;
 }
 
-#endif // X11 only
+#endif /* X11 only */
 
 /*
  * End of "$Id$".
diff --git a/src/xutf8/utf8Utils.c b/src/xutf8/utf8Utils.c
index 6c1933678..9ad8e4d81 100644
--- a/src/xutf8/utf8Utils.c
+++ b/src/xutf8/utf8Utils.c
@@ -240,7 +240,7 @@ XFastConvertUtf8ToUcs(
       return -1;
 }
 
-#endif // X11 only
+#endif /* X11 only */
 
 /*
  * End of "$Id: $".
diff --git a/src/xutf8/utf8Wrap.c b/src/xutf8/utf8Wrap.c
index 0ee2980e1..88d9fc5f2 100644
--- a/src/xutf8/utf8Wrap.c
+++ b/src/xutf8/utf8Wrap.c
@@ -915,7 +915,7 @@ XFreeUtf8FontStruct(
 	free(font_set);
 }
 
-#endif // X11 only 
+#endif /* X11 only */
 
 /*
  *  End of "$Id: $".