Jose/Paul,
I found some "/crt/" in the /inc folder of the WINFBE Suite:
D:\WinFBE_Suite\FreeBASIC-1.07.1-gcc-8.4\inc>grep -ir "/crt/" *
Afx/CMaskedEdit.inc:#include once "/crt/ctype.bi"
Afx/CWStr.inc:#INCLUDE ONCE "/crt/string.bi"
Afx/DWSTRING.bi:#INCLUDE ONCE "/crt/string.bi"
Afx/DWSTRING.bi:#INCLUDE ONCE "/crt/wchar.bi"
I know it's a little thing, but since all the rest were "crt/" I thought I'd mention.
Thx again for all the hard work!!