MinGW: the path separator to split GITPERLLIB is ';' on Win32

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Steffen Prohaska <prohaska@zib.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

Makefile

@@ -228,6 +228,7 @@ ETC_GITCONFIG = etc/gitconfig
 endif
 lib = lib
 # DESTDIR=
+pathsep = :
 
 # default configuration for gitweb
 GITWEB_CONFIG = gitweb_config.perl
@@ -816,6 +817,7 @@ ifneq (,$(findstring CYGWIN,$(uname_S)))
 	UNRELIABLE_FSTAT = UnfortunatelyYes
 endif
 ifneq (,$(findstring MINGW,$(uname_S)))
+	pathsep = ;
 	NO_PREAD = YesPlease
 	NO_OPENSSL = YesPlease
 	NO_CURL = YesPlease
@@ -1270,7 +1272,7 @@ $(patsubst %.perl,%,$(SCRIPT_PERL)): % : %.perl
 	sed -e '1{' \
 	    -e '	s|#!.*perl|#!$(PERL_PATH_SQ)|' \
 	    -e '	h' \
-	    -e '	s=.*=use lib (split(/:/, $$ENV{GITPERLLIB} || "@@INSTLIBDIR@@"));=' \
+	    -e '	s=.*=use lib (split(/$(pathsep)/, $$ENV{GITPERLLIB} || "@@INSTLIBDIR@@"));=' \
 	    -e '	H' \
 	    -e '	x' \
 	    -e '}' \