release: update readme.txt for info on fbc32.exe and fbc64.exe on win32 platform

Author: jayrm

contrib/release/build.sh

@@ -71,6 +71,8 @@
 #       -winlibs-gcc-10.2.0 (winlibs mingwrt 8.0.0r8)
 #       -winlibs-gcc-10.3.0 (winlibs mingwrt 8.0.0r1)
 #       -equation-gcc-8.3.0 (Equation - experimental)
+# --use-libffi-cache"
+#   don't build libffi, just use the cached files, from the last build
 #
 # Requirements:
 #   - MSYS environment on Windows with: bash, wget/curl, zip, unzip, patch, make, findutils
@@ -85,10 +87,12 @@
 #   - Starting from scratch everytime => clean builds
 #   - Specifying the exact DJGPP/MinGW packages to use => reproducible builds
 #   - Only work locally, e.g. don't touch existing DJGPP/MinGW setups on the host
+#   - automatically pull in binaries that need to be distributed with the standalone packages
 # 
 # TODO:
 #   - win32: fbdoc CHM
 #   - package libffi
+#   - automate combining packages
 #
 set -e
 
@@ -111,7 +115,8 @@ usage() {
 	echo "   --remote name  specify the name to use for the alternate remote"
 	echo "   --recipe name  specify a build recipe to use"
 	echo "   --use-libffi-cache"
-	echo "                  don't build libffi, just use the chaced files"
+	echo "                  don't build libffi, just use the cached files"
+	echo "                  from the last build"
 	exit 1
 }
 

readme.txt

@@ -26,15 +26,23 @@
     FreeBASIC gives you the FreeBASIC compiler program (fbc or fbc.exe),
     plus the tools and libraries used by it. fbc is a command line program
     that takes FreeBASIC source code files (*.bas) and compiles them into
-    executables.
+    executables.  In the combined standalone packages for windows, the main
+    executable is named fbc32.exe (for 32-bit) and fbc64.exe (for 64-bit)
 
     fbc is typically invoked by Integrated Development Environments (IDEs) or
     text editors, from a terminal or command prompt, or through build-systems
     such as makefiles. fbc itself is not a graphical code editor or IDE!
 
     Win32 (similar for Win64):
-      Download and extract latest FreeBASIC-x.xx.x-win32.zip or
-      download and extract latest FreeBASIC-x.xx.x-win64.zip.
+      Separate 32-bit and 64-bit standalone packages:
+        Download and extract latest:
+           - FreeBASIC-x.xx.x-win32.zip or FreeBASIC-x.xx.x-win32.7z for 32-bit
+           - FreeBASIC-x.xx.x-win64.zip or FreeBASIC-x.xx.x-win64.7z for 64-bit
+      Combined 32-bit and 64-bit standalone packages:
+        Download and extract latest:
+           - FreeBASIC-x.xx.x-gcc-winlibs-9.3.0.7z or
+           - FreeBASIC-x.xx.x-gcc-5.2.0.7z
+           - fbc32.exe and fbc64.exe are used instead of fbc.exe
 
       Now you can use fbc.exe from the installation directory to compile FB
       programs (*.bas files) into executables (*.exe files). Open a command