diff --git a/install-all.sh b/install-all.sh
index 0e8eb195..c3038b08 100755
--- a/install-all.sh
+++ b/install-all.sh
@@ -36,7 +36,12 @@ cygwin_prepare()
     chmod +x apt-cyg
     mv apt-cyg /usr/local/bin/
 
-    apt-cyg install make gcc automake autoconf pkg-config openssl-devel libexpat-devel zlib-devel libncurses-devel libncursesw-devel libglib2.0-devel libcurl-devel libidn-devel libssh2-devel libkrb5-devel openldap-devel
+    if [ -n "$CYG_MIRROR" ]; then
+        apt-cyg -m $CYG_MIRROR install make automake autoconf pkg-config openssl-devel libexpat-devel zlib-devel libncursesw-devel libglib2.0-devel libcurl-devel libidn-devel libssh2-devel libkrb5-devel openldap-devel
+    else
+        apt-cyg install make automake autoconf pkg-config openssl-devel libexpat-devel zlib-devel libncursesw-devel libglib2.0-devel libcurl-devel libidn-devel libssh2-devel libkrb5-devel openldap-devel
+    fi
+
     ln -s /usr/bin/gcc-3.exe /usr/bin/gcc.exe
 
     export LIBRARY_PATH=/usr/local/lib/
@@ -109,6 +114,13 @@ cleanup()
     echo
 }
 
+while getopts m: opt
+do
+    case "$opt" in
+        m) CYG_MIRROR=$OPTARG;;
+    esac
+done
+
 OS=`uname -s`
 DIST=unknown