Found by gcc-4 on alpha :-)

As per POSIX, realpath() stores up to PATH_MAX into resolved, so let's
make sure that that space is available.

While here, gcc-4 complains about brackets arround '&', so why not
please our ancient compiler overlords by placing said brackets. Diff
below allows gotsysd to be build on alpha with -Werror.

martijn@

diff /home/martijn/src/got
path + /home/martijn/src/got
commit - 10f51ecc4cbfab15f63d68920c9674a2995fd394
blob - e4e182649fed10798ea15941c5d98962ec48659e
file + gotsysd/gotsysd.h
--- gotsysd/gotsysd.h
+++ gotsysd/gotsysd.h
@@ -183,8 +183,8 @@ struct gotsysd_web_config {
 
 struct gotsysd {
 	pid_t pid;
-	char unix_socket_path[_POSIX_PATH_MAX];
-	char repos_path[_POSIX_PATH_MAX];
+	char unix_socket_path[PATH_MAX];
+	char repos_path[PATH_MAX];
 	char user_name[32];
 	char gotd_username[32];
 	char gotsys_conf_commit_id[GOT_OBJECT_ID_HEX_MAXLEN];
commit - 10f51ecc4cbfab15f63d68920c9674a2995fd394
blob - d8abeaf2d0a5fc1569525fd0be4ea5b228d59506
file + gotsysd/libexec/gotsys-repo-create/gotsys-repo-create.c
--- gotsysd/libexec/gotsys-repo-create/gotsys-repo-create.c
+++ gotsysd/libexec/gotsys-repo-create/gotsys-repo-create.c
@@ -56,7 +56,7 @@
 #include "gotsys.h"
 
 static struct gotsys_conf gotsysconf;
-static char repos_path[_POSIX_PATH_MAX];
+static char repos_path[PATH_MAX];
 static int repos_dir_fd = -1;
 uid_t gotd_uid;
 gid_t gotd_gid;
commit - 10f51ecc4cbfab15f63d68920c9674a2995fd394
blob - b057df8abd2756d0e491d4a746945a917b55ce82
file + gotsysd/libexec/gotsys-useradd/gotsys-useradd.c
--- gotsysd/libexec/gotsys-useradd/gotsys-useradd.c
+++ gotsysd/libexec/gotsys-useradd/gotsys-useradd.c
@@ -548,7 +548,7 @@ add_users(void)
 		 * put the new users before it, and preserve entries
 		 * after the yp entry.
 		 */
-		 if (linelen > 1 && line[0] == '+' & line[1] == ':') {
+		 if (linelen > 1 && (line[0] == '+') & (line[1] == ':')) {
 			yp = 1;
 			break;
 		}