package/libxcrypt: --disable-werror to fix problem with sensitive compilers

Fixes: http://autobuild.buildroot.net/results/e9a058a8c98daf197cd9d7ac632e0cb5707d524f

Some sensitive compilers may raise warnings that turn into errors.

Signed-off-by: Guillaume W. Bres <guillaume.bressaix@gmail.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>

package/libxcrypt/libxcrypt.mk

@@ -11,4 +11,7 @@ LIBXCRYPT_LICENSE_FILES = LICENSING COPYING.LIB
 LIBXCRYPT_INSTALL_STAGING = YES
 LIBXCRYPT_AUTORECONF = YES
 
+# Some warnings turn into errors with some sensitive compilers
+LIBXCRYPT_CONF_OPTS = --disable-werror
+
 $(eval $(autotools-package))