can't build motif gui error: reference to ‘String’ is ambiguous

[Alessandro-Barbieri]

In file included from ../include/petit/motif.h:11,
                 from ../src/hpp.c:360:
/usr/include/X11/Intrinsic.h:186:5: error: reference to ‘String’ is ambiguous
  186 |     String*  /* params */,
      |     ^~~~~~
In file included from ../../omega_lib/include/omega/omega_core/oc.h:12,
                 from ../../omega_lib/include/omega/pres_gen.h:35,
                 from ../../omega_lib/include/omega/pres_form.h:10,
                 from ../../omega_lib/include/omega/RelBody.h:10,
                 from ../../omega_lib/include/omega/Relation.h:10,
                 from ../../omega_lib/include/omega/Relations.h:11,
                 from ../src/hpp.c:4:
../../basic/include/basic/String.h:24:7: note: candidates are: ‘class omega::String’
   24 | class String {
      |       ^~~~~~
In file included from ../include/petit/motif.h:11,
                 from ../src/hpp.c:360:
/usr/include/X11/Intrinsic.h:74:15: note:                 ‘typedef char* String’
   74 | typedef char *String;
      |               ^~~~~~
In file included from ../include/petit/motif.h:11,
                 from ../src/hpp.c:360:
/usr/include/X11/Intrinsic.h:186:5: error: ‘String’ has not been declared
  186 |     String*  /* params */,
      |     ^~~~~~
/usr/include/X11/Intrinsic.h:193:5: error: reference to ‘String’ is ambiguous
  193 |     String  string;
      |     ^~~~~~
In file included from ../../omega_lib/include/omega/omega_core/oc.h:12,
                 from ../../omega_lib/include/omega/pres_gen.h:35,
                 from ../../omega_lib/include/omega/pres_form.h:10,
                 from ../../omega_lib/include/omega/RelBody.h:10,
                 from ../../omega_lib/include/omega/Relation.h:10,
                 from ../../omega_lib/include/omega/Relations.h:11,
                 from ../src/hpp.c:4:
../../basic/include/basic/String.h:24:7: note: candidates are: ‘class omega::String’
   24 | class String {
      |       ^~~~~~
In file included from ../include/petit/motif.h:11,
                 from ../src/hpp.c:360:
/usr/include/X11/Intrinsic.h:74:15: note:                 ‘typedef char* String’
   74 | typedef char *String;
      |               ^~~~~~
In file included from ../include/petit/motif.h:11,
                 from ../src/hpp.c:360:
/usr/include/X11/Intrinsic.h:266:5: error: reference to ‘String’ is ambiguous
  266 |     String  /* action_name */,
      |     ^~~~~~
In file included from ../../omega_lib/include/omega/omega_core/oc.h:12,
                 from ../../omega_lib/include/omega/pres_gen.h:35,
                 from ../../omega_lib/include/omega/pres_form.h:10,
                 from ../../omega_lib/include/omega/RelBody.h:10,
                 from ../../omega_lib/include/omega/Relation.h:10,
                 from ../../omega_lib/include/omega/Relations.h:11,
                 from ../src/hpp.c:4:
../../basic/include/basic/String.h:24:7: note: candidates are: ‘class omega::String’
   24 | class String {
      |       ^~~~~~
In file included from ../include/petit/motif.h:11,
                 from ../src/hpp.c:360:
/usr/include/X11/Intrinsic.h:74:15: note:                 ‘typedef char* String’
   74 | typedef char *String;
      |               ^~~~~~
In file included from ../include/petit/motif.h:11,
                 from ../src/hpp.c:360:
/usr/include/X11/Intrinsic.h:266:5: error: ‘String’ has not been declared
  266 |     String  /* action_name */,
      |     ^~~~~~
/usr/include/X11/Intrinsic.h:268:5: error: reference to ‘String’ is ambiguous
  268 |     String*  /* params */,
      |     ^~~~~~
In file included from ../../omega_lib/include/omega/omega_core/oc.h:12,
                 from ../../omega_lib/include/omega/pres_gen.h:35,
                 from ../../omega_lib/include/omega/pres_form.h:10,
                 from ../../omega_lib/include/omega/RelBody.h:10,
                 from ../../omega_lib/include/omega/Relation.h:10,
                 from ../../omega_lib/include/omega/Relations.h:11,
                 from ../src/hpp.c:4:
../../basic/include/basic/String.h:24:7: note: candidates are: ‘class omega::String’
   24 | class String {
      |       ^~~~~~
In file included from ../include/petit/motif.h:11,
                 from ../src/hpp.c:360:
/usr/include/X11/Intrinsic.h:74:15: note:                 ‘typedef char* String’
   74 | typedef char *String;
      |               ^~~~~~
In file included from ../include/petit/motif.h:11,
                 from ../src/hpp.c:360:
/usr/include/X11/Intrinsic.h:268:5: error: ‘String’ has not been declared
  268 |     String*  /* params */,
      |     ^~~~~~
/usr/include/X11/Intrinsic.h:326:5: error: reference to ‘String’ is ambiguous
  326 |     String name;
      |     ^~~~~~
In file included from ../../omega_lib/include/omega/omega_core/oc.h:12,
                 from ../../omega_lib/include/omega/pres_gen.h:35,
                 from ../../omega_lib/include/omega/pres_form.h:10,
                 from ../../omega_lib/include/omega/RelBody.h:10,
                 from ../../omega_lib/include/omega/Relation.h:10,
                 from ../../omega_lib/include/omega/Relations.h:11,
                 from ../src/hpp.c:4:
../../basic/include/basic/String.h:24:7: note: candidates are: ‘class omega::String’
   24 | class String {
      |       ^~~~~~
In file included from ../include/petit/motif.h:11,
                 from ../src/hpp.c:360:
/usr/include/X11/Intrinsic.h:74:15: note:                 ‘typedef char* String’
   74 | typedef char *String;
      |               ^~~~~~
In file included from ../include/petit/motif.h:11,
                 from ../src/hpp.c:360:
/usr/include/X11/Intrinsic.h:364:5: error: reference to ‘String’ is ambiguous
  364 |     String resource_name; /* Resource name       */
      |     ^~~~~~
In file included from ../../omega_lib/include/omega/omega_core/oc.h:12,
                 from ../../omega_lib/include/omega/pres_gen.h:35,
                 from ../../omega_lib/include/omega/pres_form.h:10,
                 from ../../omega_lib/include/omega/RelBody.h:10,
                 from ../../omega_lib/include/omega/Relation.h:10,
                 from ../../omega_lib/include/omega/Relations.h:11,
                 from ../src/hpp.c:4: