Fix meson uuid header check so it works with MSVC

The OSSP uuid.h file includes unistd.h, so to use it with MSVC we need to include the postgres include directories so it picks up our version of that in src/include/port/win32_msvc. Adjust the meson test accordingly.

Author: adunstan

meson.build

@@ -1353,7 +1353,10 @@ if uuidopt != 'none'
  error('unknown uuid build option value: @0@'.format(uuidopt))
  endif
 
- if not cc.has_header_symbol(uuidheader, uuidfunc, args: test_c_args, dependencies: uuid)
+ if not cc.has_header_symbol(uuidheader, uuidfunc,
+ args: test_c_args,
+ include_directories: postgres_inc,
+ dependencies: uuid)
  error('uuid library @0@ missing required function @1@'.format(uuidopt, uuidfunc))
  endif
  cdata.set('HAVE_@0@'.format(uuidheader.underscorify().to_upper()), 1)