From 7e44983388a85ba2ef721b302f97b8accad23ba6 Mon Sep 17 00:00:00 2001
From: Alexey Neyman <stilor@att.net>
Date: Mon, 5 Dec 2016 00:05:56 -0800
Subject: Work around Cygwin idiosyncrasy.

Cygwin doesn't like directory names ending with a dot, e.g. "multilib_."

Signed-off-by: Alexey Neyman <stilor@att.net>

diff --git a/scripts/functions b/scripts/functions
index efdf304..6fc1793 100644
--- a/scripts/functions
+++ b/scripts/functions
@@ -1574,6 +1574,7 @@ CT_IterateMultilibs() {
     local -a multilibs
     local multi_dir multi_os_dir multi_root multi_flags multi_index multi_target
     local root_suffix
+    local dir_postfix
 
     # Name used internally below
     if [ "${prefix}" = "sysroot-check" ]; then
@@ -1655,7 +1656,12 @@ CT_IterateMultilibs() {
             multi_os_dir=.
         fi
 
-        CT_mkdir_pushd "${prefix}_${multi_dir//\//_}"
+        # Brain-dead Cygwin hack: Cygwin cannot run a binary if there is a directory
+        # component in the path that ends with a dot. Unfortunately, that's the case
+        # for the default library name with GCC.
+        dir_postfix=_${multi_dir//\//_}
+        dir_postfix=${dir_postfix%_.}
+        CT_mkdir_pushd "${prefix}${dir_postfix}"
         $func multi_dir="${multi_dir}"       \
               multi_os_dir="${multi_os_dir}" \
               multi_flags="${multi_flags}"   \
-- 
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