Check for existence of djecho.exe, and print an

error message if it is not available.

diff --git a/config.bat b/config.bat
index 08919a3e591659257cd91640be0920c053802c42..302eb24b0dcb176ab3e692d41af47fbe31b6ea45 100644 (file)
--- a/config.bat
+++ b/config.bat
@@ -122,6 +122,19 @@ Goto End
 set djgpp_ver=1\r
 If ErrorLevel 20 set djgpp_ver=2\r
 rm -f junk.c junk junk.exe\r
+rem DJECHO is used by the top-level Makefile\r
+Echo Checking whether 'djecho' is available...\r
+redir -o Nul -eo djecho -o junk.$$$ foo\r
+If Exist junk.$$$ Goto djechoOk\r
+Echo To build 'Emacs' you need the 'djecho.exe' program!\r
+Echo 'djecho.exe' is part of 'djdevNNN.zip' basic DJGPP development kit.\r
+Echo Versions of DJGPP before 2.02 called this program 'echo.exe'.\r
+Echo Either unpack 'djecho.exe' from the 'djdevNNN.zip' archive,\r
+Echo or, if you have 'echo.exe', copy it to 'djecho.exe'.\r
+Echo Then run CONFIG.BAT again with the same arguments you did now.\r
+Goto End\r
+:djechoOk\r
+rm -f junk.$$$\r
 Echo Configuring for DJGPP Version %DJGPP_VER% ...\r
 Rem   ----------------------------------------------------------------------\r
 Echo Configuring the source directory...\r