" cannot be in middle else gmake fails

Author: mohawk2

patches/gsl-2.6/gsl-config.bat.win-gcc

@@ -1,12 +1,11 @@
 @echo off
 rem simplified replacement for the original shell script
-set ROOT="%~dp0"
 
-set XCFLAGS=-I%ROOT%..\include
-set XLIBS1=-L%ROOT%..\lib -lgsl -lgslcblas
-set XLIBS2=-L%ROOT%..\lib -lgsl
+set XCFLAGS="-I%~dp0%..\include"
+set XLIBS1="-L%~dp0%..\lib" -lgsl -lgslcblas
+set XLIBS2="-L%~dp0%..\lib" -lgsl
 set XVERSION=2.6
-set XPREFIX=%ROOT%..\
+set XPREFIX="%~dp0%..\"
 
 for %%p in (%*) do (
   if x%%p == x--cflags     echo %XCFLAGS%