Configure: GNU Hurd properly recognized.
With this change it's no longer needed to pass -D_GNU_SOURCE manually,
and -D_FILE_OFFSET_BITS=64 is set to use 64-bit off_t.
Note that nginx currently fails to work properly with master process
enabled on GNU Hurd, as fcntl(F_SETOWN) returns EOPNOTSUPP for sockets
as of GNU Hurd 0.6. Additionally, our strerror() preloading doesn't
work well with GNU Hurd, as it uses large numbers for most errors.
diff --git a/auto/os/conf b/auto/os/conf
index fe72016..6ad0e74 100644
--- a/auto/os/conf
+++ b/auto/os/conf
@@ -60,6 +60,15 @@
CORE_SRCS="$UNIX_SRCS"
;;
+ GNU:*)
+ # GNU Hurd
+ have=NGX_GNU_HURD . auto/have_headers
+ CORE_INCS="$UNIX_INCS"
+ CORE_DEPS="$UNIX_DEPS $POSIX_DEPS"
+ CORE_SRCS="$UNIX_SRCS"
+ CC_AUX_FLAGS="$CC_AUX_FLAGS -D_GNU_SOURCE -D_FILE_OFFSET_BITS=64"
+ ;;
+
*)
CORE_INCS="$UNIX_INCS"
CORE_DEPS="$UNIX_DEPS $POSIX_DEPS"
diff --git a/src/os/unix/ngx_posix_config.h b/src/os/unix/ngx_posix_config.h
index d725659..443c4b0 100644
--- a/src/os/unix/ngx_posix_config.h
+++ b/src/os/unix/ngx_posix_config.h
@@ -21,6 +21,14 @@
#endif
+#if (NGX_GNU_HURD)
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE /* accept4() */
+#endif
+#define _FILE_OFFSET_BITS 64
+#endif
+
+
#ifdef __CYGWIN__
#define timezonevar /* timezone is variable */
#define NGX_BROKEN_SCM_RIGHTS 1
