--- z88dk/build.sh	2021-04-20 00:03:23.742154100 +0300
+++ z88dk/build_Cygwin.sh	2021-04-20 00:04:56.836048400 +0300
@@ -48,6 +48,7 @@
 builddir=`pwd $0`
 ZCCCFG=$builddir/lib/config
 PATH=$builddir/bin:$PATH
+if test x$OS = xWindows_NT -a x$OSTYPE = xcygwin; then ZCCCFG=`cygpath -m $ZCCCFG`; fi
 export ZCCCFG
 export PATH
 
@@ -143,6 +144,7 @@
 
 ZCCCFG=`pwd`/lib/config/                # Set ZCCCFG to the lib config directory
 mkdir -p $ZCCCFG                        # Guarantee that the directory exists
+if test x$OS = xWindows_NT -a x$OSTYPE = xcygwin; then ZCCCFG=`cygpath -m $ZCCCFG`; fi
 export ZCCCFG