add missing comment

git-svn-id: http://svn.osgeo.org/postgis/trunk@5149 b70326c6-7e19-0410-871a-916f4a2858ee

diff --git a/configure.ac b/configure.ac
index f8aa26d24273f1045c9ae1e52d459eb31e219d77..7c8c85fcf57bb9c93f4c7af7808a50751da5f25a 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -76,6 +76,10 @@ dnl
 AC_CHECK_HEADER([ieeefp.h], [HAVE_IEEEFP_H=1], [HAVE_IEEEFP_H=0])
 AC_DEFINE_UNQUOTED([HAVE_IEEEFP_H], [$HAVE_IEEEFP_H], [ieeefp.h header])
 
+dnl 
+dnl MingW requires use of pwd -W to give proper Windows (not MingW) paths 
+dnl for in-place regression tests 
+dnl 
 case $host_os in
          *mingw*)
                  PWDREGRESS="pwd -W"
@@ -87,6 +91,7 @@ esac
 AC_DEFINE_UNQUOTED([PWDREGRESS])
 AC_SUBST([PWDREGRESS])
 
+
 dnl ===========================================================================
 dnl Find components needed to build documentation
 dnl ===========================================================================