* cyglsa.c: Fix compilation with MinGW-w64 toolchains.

* make-64bit-version-with-mingw-w64.sh: New file.
	* cyglsa64.dll: Regenerate with MinGW-w64-gc.

winsup/lsaauth/make-64bit-version-with-mingw-w64.sh

@@ -0,0 +1,25 @@
+#! /bin/sh
+# This script shows how to generate a 64 bit version of cyglsa.dll.
+# The 32 bit version will not work on 64 bit systems.
+#
+# Note that you need MinGW-w64 GCC, headers, and import libs.  On Cygwin,
+# the required packages are: mingw64-x86_64-binutils, mingw64-x86_64-gcc-core,
+# mingw64-x86_64-headers, and mingw64-x86_64-runtime.
+#
+# Note that this is for building inside the source dir as not to interfere
+# with the "official" 32 bit build in the build directory.
+#
+# Install the dll into /bin and use the cyglsa-config script to register it.
+# Don't forget to reboot afterwards.
+#
+# Add "-DDEBUGGING" to CFLAGS below to create debugging output to
+# C:\cyglsa.dbgout at runtime.
+#
+set -e
+
+CC="x86_64-w64-mingw32-gcc"
+CFLAGS="-fno-exceptions -O0 -Wall -Werror"
+LDFLAGS="-s -nostdlib -Wl,--entry,DllMain,--major-os-version,5,--minor-os-version,2"
+LIBS="-ladvapi32 -lkernel32 -lntdll"
+
+$CC $CFLAGS $LDFLAGS -shared -o cyglsa64.dll cyglsa.c mslsa.def $LIBS