bug#40316: [PATCH v4 1/5] gnu: nss: Fix cross-compilation.

[Christina O'Donnell <cdo@mutix.org>]

From: Zheng Junjie <zhengjunjie@iscas.ac.cn>

* gnu/packages/nss.scm (nss)[arguments]<#:make-flags>: When
cross-compilation, Add CROSS_COMPILE=1.
<#:phases>: When cross-compilation, Set env NATIVE_CC to gcc.

Change-Id: I5c9559a4b8cecf2cfc6c47d136d69c01a335faaf
Signed-off-by: Zheng Junjie <zhengjunjie@iscas.ac.cn>
---
 gnu/packages/nss.scm | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/gnu/packages/nss.scm b/gnu/packages/nss.scm
index 7e9ed49ead..459e53bc1c 100644
--- a/gnu/packages/nss.scm
+++ b/gnu/packages/nss.scm
@@ -154,6 +154,9 @@ (define-public nss
                                             (#$(target-linux?) "linux")
                                             (else ""))))
                        #~())
+                #$@(if (%current-target-system)
+                       #~("CROSS_COMPILE=1")
+                       #~())
                 (string-append "NSPR_INCLUDE_DIR="
                                (search-input-directory %build-inputs
                                                        "include/nspr"))
@@ -175,6 +178,10 @@ (define-public nss
             (lambda _
               (setenv "CC" #$(cc-for-target))
               (setenv "CCC" #$(cxx-for-target))
+              ;; TODO: Set this unconditionally
+              #$@(if (%current-target-system)
+                     #~((setenv "NATIVE_CC" "gcc"))
+                     #~())
               ;; No VSX on powerpc-linux.
               #$@(if (target-ppc32?)
                      #~((setenv "NSS_DISABLE_CRYPTO_VSX" "1"))
-- 
2.41.0