-Werror=implicit-function-declaration

...when building --without-system-zlib on Linux.

Change-Id: I9bcb355ec75291609b28397c16068acf293ba6eb

nss/makefile.mk

@@ -48,7 +48,10 @@ VER_PATCH=5
 TARFILE_NAME=nss-$(VER_MAJOR).$(VER_MINOR).$(VER_PATCH)-with-nspr-4.9.1
 TARFILE_MD5=a0a861f539f0e7a91d05e6b9457e4db1
 TARFILE_ROOTDIR=nss-$(VER_MAJOR).$(VER_MINOR).$(VER_PATCH)
-PATCH_FILES=nss.patch nss.aix.patch nss-config.patch
+PATCH_FILES=nss.patch nss.aix.patch nss-config.patch \
+    nss-3.13.5-zlib-werror.patch
+# nss-3.13.5-zlib-werror.patch: avoid -Werror=implicit-function-declaration for
+# lseek, read, write
 
 .IF "$(OS)"=="MACOSX"
 PATCH_FILES+=nss_macosx.patch

nss/nss-3.13.5-zlib-werror.patch

+--- misc/nss-3.13.5/mozilla/security/nss/lib/zlib/gzguts.h	2010-08-22 03:07:03.000000000 +0200
++++ misc/build/nss-3.13.5/mozilla/security/nss/lib/zlib/gzguts.h	2012-07-17 08:52:14.821552788 +0200
+@@ -26,6 +26,7 @@
+ #  include <limits.h>
+ #endif
+ #include <fcntl.h>
++#include <unistd.h>
+ 
+ #ifdef NO_DEFLATE       /* for compatibility with old definition */
+ #  define NO_GZCOMPRESS