[nginx] Fixed building with musl libc (ticket #685).

[Maxim Dounin]

details:   http://hg.nginx.org/nginx/rev/fd6fd02f6a4d
branches:  
changeset: 5955:fd6fd02f6a4d
user:      Maxim Dounin <mdounin at mdounin.ru>
date:      Wed Dec 24 19:01:22 2014 +0300
description:
Fixed building with musl libc (ticket #685).

diffstat:

 src/os/unix/ngx_user.c |  2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diffs (14 lines):

diff --git a/src/os/unix/ngx_user.c b/src/os/unix/ngx_user.c
--- a/src/os/unix/ngx_user.c
+++ b/src/os/unix/ngx_user.c
@@ -31,8 +31,10 @@ ngx_libc_crypt(ngx_pool_t *pool, u_char 
     struct crypt_data   cd;
 
     cd.initialized = 0;
+#ifdef __GLIBC__
     /* work around the glibc bug */
     cd.current_salt[0] = ~salt[0];
+#endif
 
     value = crypt_r((char *) key, (char *) salt, &cd);