fix foreign library references for cross-build

racket/collects/db/private/sqlite3/ffi.rkt

@@ -1,15 +1,17 @@
 #lang racket/base
-(require (for-syntax racket/base)
+(require (for-syntax racket/base
+                     setup/cross-system)
          racket/runtime-path
          ffi/unsafe
-         ffi/unsafe/define)
+         ffi/unsafe/define
+         setup/cross-system)
 (require "ffi-constants.rkt")
 (provide (all-from-out "ffi-constants.rkt")
          (protect-out (all-defined-out)))
 
 ;; raco distribute should include Racket's sqlite3 if present
 (define-runtime-path sqlite-so
-  (case (system-type)
+  (case (cross-system-type)
     [(windows) '(so "sqlite3")]
     [else '(so "libsqlite3" ("0" #f))]))
 

racket/collects/openssl/libcrypto.rkt

@@ -1,7 +1,9 @@
 #lang racket/base
 (require ffi/unsafe
          racket/runtime-path
-         (for-syntax racket/base))
+         setup/cross-system
+         (for-syntax racket/base
+                     setup/cross-system))
 
 (provide libcrypto
          libcrypto-load-fail-reason
@@ -42,7 +44,7 @@
 ;; We need to declare because they might be distributed with Racket,
 ;; in which case they should get bundled with stand-alone executables:
 (define-runtime-path libcrypto-so
-  (case (system-type)
+  (case (cross-system-type)
     [(windows) '(so "libeay32")]
     [(macosx)
      ;; Version "1.0.0" is bundled with Racket

racket/collects/openssl/libssl.rkt

@@ -1,7 +1,9 @@
 #lang racket/base
 (require ffi/unsafe
          racket/runtime-path
-         (for-syntax racket/base)
+         setup/cross-system
+         (for-syntax racket/base
+                     setup/cross-system)
          "libcrypto.rkt")
 
 (provide libssl
@@ -12,7 +14,7 @@
 ;; We need to declare because they might be distributed with PLT Scheme
 ;; in which case they should get bundled with stand-alone executables:
 (define-runtime-path libssl-so
-  (case (system-type)
+  (case (cross-system-type)
     [(windows) '(so "ssleay32")]
     [(macosx)
      ;; Version "1.0.0" is bundled with Racket