The following bug has been logged on the website:
Bug reference: 14185
Logged by: Torben Dannhauer
Email address: torben(at)dannhauer(dot)de
PostgreSQL version: 9.5.3
Operating system: Windows 8.1
Description:
In postgresql\src\interfaces\libpq\win32.mak in line 171, the indentation
makes the assignment fails. Since the code is guarded by "!IFDEF
USE_OPENSSL", it only occurs when libpq is compiled with openssl support.
Removing the leading tab/spaces in line 171 fixes the issue.