minor updates

DEPENDENCIES.md

@@ -7,7 +7,7 @@ compilation phase, and dynamic libraries linked either to `libcob`, or
 to the compiled binary (the compiled version of your COBOL
 program). Packaging systems, particularly on Linux, sometimes include
 only the run-time components in the main package, and split the
-compile-time pieces off to a "development" package.  
+compile-time pieces off to a "development" package.
 
 You need both. Header files are required for compilation, and
 libraries for run-time support.
@@ -23,31 +23,31 @@ GnuCOBOL requires *one of* the following external libraries to be installed
 for decimal arithmetic:
 
 * [GNU MP](https://gmplib.org) (libgmp) 4.1.2 or later.
-* [MPIR](http://mpir.org) (libgmp - MPIR gmp-compat) 1.3.1 or later. 
-This is preferred when compiling on Windows with other compilers than gcc. 
+* [MPIR](http://mpir.org) (libgmp - MPIR gmp-compat) 1.3.1 or later.
+This is preferred when compiling on Windows with other compilers than gcc.
 
 GNU MP and MPIR are distributed under GNU Lesser General Public License.
 
 Seldom Required
 ===============
 
-CnuCOBOL requires support for dynamic linking, a feature of nearly all
+GnuCOBOL requires support for dynamic linking, a feature of nearly all
 target operating systems. Among those that include it are Windows,
 Solaris, Linux, any BSD, and recent versions of AIX (>= 5.1) and HP-UX
 (>= 11.1).
 
-If your OS is some flavor of Unix and has no support for
-**dlopen**(3), it can be provided by
+If your OS is some flavor of Unix or DOS and has no support for **dlopen**(3),
+it can be provided by
 
 * [GNU Libtool](https://www.gnu.org/software/libtool/libtool.html)  (libltdl)
 
-`libltdl` is used to implement dynamic CALL statements.  
+`libltdl` is used to implement dynamic CALL statements on those systems.
 
 GNU Libtool is distributed under GNU Lesser General Public License.
 
 Not Required
 ============
-            (but helpful)
+(but helpful)
 
 All dependencies discussed from this point forward support optional
 features of GnuCOBOL.
@@ -92,7 +92,7 @@ by *one* of the following:
 *   [PDCurses](https://pdcurses.org/) or
     [PDCursesMod](https://github.com/Bill-Gray/PDCursesMod/),
     especially for MinGW and native windows ports
-	
+
     PDCurses is distributed as Public Domain.
 
 *   Unix curses (if supplied by your OS)

README.md

@@ -1,4 +1,4 @@
-[GnuCOBOL}(https://www.gnu.org/software/gnucobol/) is a free
+[GnuCOBOL](https://www.gnu.org/software/gnucobol/) is a free
 COBOL compiler licensed under the GNU Public License (GPL).  
 It implements a substantial part of the COBOL 85,
 COBOL 2002 and COBOL 2014 standards, as well as many extensions
@@ -147,7 +147,7 @@ see HACKING.
 Further information about the project, including the source code repository,
 history, and frequently asked questions, may be found at 
 
-*		https://www.gnu.org/software/gnucobol/
-*		https://sourceforge.net/projects/gnucobol
-*		https://savannah.gnu.org/projects/gnucobol
+*  https://www.gnu.org/software/gnucobol/
+*  https://sourceforge.net/projects/gnucobol
+*  https://savannah.gnu.org/projects/gnucobol
 

build_windows/gcvsvars.cmd

@@ -1,4 +1,4 @@
-:: Copyright (C) 2014-2020 Free Software Foundation, Inc.
+:: Copyright (C) 2014-2020,2022 Free Software Foundation, Inc.
 :: Written by Simon Sobisch, Edward Hart
 ::
 :: This file is part of GnuCOBOL.
@@ -58,7 +58,7 @@ if "%errorlevel%" == "0" (
 :: Visual Studio 2017 and newer: no VS150COMNTOOLS globally or vsvars any more...
 :: check if available, otherwise check on
 set "found="
-for %%v in (2019 2017) do (
+for %%v in (2022 2019 2017) do (
    if not "%found%" == ""  goto :eof
    call :vsvars_current %%v
 )
@@ -67,8 +67,8 @@ if not "%found%" == "" (
    goto :setup_gc
 )
 
-:: Visual Studio 2015, 2013, 2012, 2010, 2008, 2005
-for %%v in ("%VS140COMNTOOLS%" "%VS120COMNTOOLS%" "%VS110COMNTOOLS%" "%VS100COMNTOOLS%" "%VS90COMNTOOLS%" "%VS80COMNTOOLS%") do (
+:: Visual Studio 2015, 2013, 2012, 2010, 2008
+for %%v in ("%VS140COMNTOOLS%" "%VS120COMNTOOLS%" "%VS110COMNTOOLS%" "%VS100COMNTOOLS%" "%VS90COMNTOOLS%") do (
    if not "%found%" == ""  goto :eof
    call :vsvars_old "%%v"
 )

cobc/cobc.c

@@ -4063,7 +4063,7 @@ process_filename (const char *filename)
 	fn->demangle_source = cb_encode_program_id (fbasename, 0, cb_fold_call);
 
 	/* Check input file type */
-	if (strcasecmp (extension, "i") == 0) {
+	if (cb_strcasecmp (extension, "i") == 0) {
 		/* Already preprocessed */
 		fn->need_preprocess = 0;
 	} else 

cobc/config.c

@@ -424,8 +424,8 @@ cb_load_conf (const char *fname, const int prefix_dir)
 
 	/* Get the name for the configuration file */
 	if (prefix_dir) {
-		// CHECKME: would it be useful for at least MinGW to use "all slash"
-		//          if the first slash is a unix slash?
+		/* CHECKME: would it be useful for at least MinGW to use "all slash"
+		            if the first slash is a unix slash? */
 		snprintf (buff, (size_t)COB_NORMAL_MAX,
 			  "%s%c%s", cob_config_dir, SLASH_CHAR, fname);
 		name = buff;