Date: Tue, 4 Jul 2000 21:17:09 -0400 (EDT)
From: Frank Donahoe <fdonahoe AT wilkes1 DOT wilkes DOT edu>
To: Eli Zaretskii <eliz AT is DOT elta DOT co DOT il>
cc: DJGPP List <djgpp AT delorie DOT com>
Subject: building flex 2.5.4
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I started to rebuild from sources on my hard disk those distributions
for which the recent large upload did not include patched sources.  With
"flx254s.zip" I was surprised to find that the build failed when running
in a DOS box (LFN enabled) under Windows98.  I thought maybe the sources
had been changed.  The sources in .../v2gnu (Dec 1997) were about nine
months later than the ones I have so I downloaded.  This is not
recommended.  The differences are trivial and the earlier file had a
more imaginative use of upper case letters.

Only in flex-2.5-4: config.status
diff -brU 2 flex-2.54a/misc/msdos/configur.bat
flex-2.5-4/misc/msdos/configur.bat
--- flex-2.54a/misc/msdos/configur.bat	Mon Mar 24 11:56:22 1997
+++ flex-2.5-4/misc/msdos/configur.bat	Tue Dec  9 14:12:52 1997
@@ -3,2 +3,3 @@
 sed -f MISC/MSDOS/djgpp.sed Makefile.in > Makefile
 update MISC/MSDOS/config.h config.h
+touch config.status

`config.status' can be generated by running the configure script.

The failure of the build process with LFN enabled is because an
intermediate file `y.tab.c' is generated while the supplied Makefile
expects to see `y_tab.c'.  Expect to use the supplied source under
plain DOS or when LFN are disabled.  Below is a patch to the instructions.

Regards,
Frank

; - - - - begin patch
--- gnu/flex-2.5-4/MISC/MSDOS/README~	Tue Mar 25 15:40:34 1997
+++ gnu/flex-2.5-4/MISC/MSDOS/README	Tue Jul  4 19:07:46 2000
@@ -30,7 +30,23 @@
 
 		misc\msdos\configur.bat
+
+   The distribution "flx254s.zip" is preconfigured for djgpp so the
+   above line is not needed with a fresh source tree.  However make
+   failed trying to rebuild for djgpp 2.0.3 using binutils 2.10 with
+   LFN under Windows98.  The problem is that an intermediate file
+   `y.tab.c' is built while the makefile expects to find `y_tab.c'.
+   Result - fatal error!  For plain DOS or "LFN=n" disregard these
+   changes.  What will work with "LFN=y" is:
+   
+        make distclean
+        sh configure --prefix=/dev/env/DJDIR --host=i386-pc-msdosdjgpp
+        cp -f misc/msdos/config.h .
+
+   Edit Makefile, change CFLAGS from "-g -O" to "-g -O2", add -DMS_DOS
+   to DEFS, and change INSTALLMAN from man to cat.  Then run:
+	
 		make
 
; - - - - - end patch