Add GNU/Hurd build support.

Note: this is not an officially supported target.
Contributed by Pino Toscano and Samuel Thibault. #1383 #1384

3 files changed, 7 insertions, 1 deletions

diff --git a/src/Makefile b/src/Makefile
index c83abfa0..5dd98a31 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -357,6 +357,9 @@ else
   ifeq (GNU/kFreeBSD,$(TARGET_SYS))
     TARGET_XLIBS+= -ldl
   endif
+  ifeq (GNU,$(TARGET_SYS))
+    TARGET_XLIBS+= -ldl
+  endif
 endif
 endif
 endif
diff --git a/src/lj_arch.h b/src/lj_arch.h
index a4eecf27..865bfa23 100644
--- a/src/lj_arch.h
+++ b/src/lj_arch.h
@@ -96,6 +96,9 @@
 #elif defined(__QNX__)
 #define LJ_TARGET_QNX           1
 #define LUAJIT_OS       LUAJIT_OS_POSIX
+#elif defined(__GNU__)
+#define LJ_TARGET_HURD          1
+#define LUAJIT_OS       LUAJIT_OS_POSIX
 #else
 #define LUAJIT_OS       LUAJIT_OS_OTHER
 #endif
diff --git a/src/lj_prng.c b/src/lj_prng.c
index 02146b27..1bbb7eab 100644
--- a/src/lj_prng.c
+++ b/src/lj_prng.c
@@ -125,7 +125,7 @@ static PRGR libfunc_rgr;
 #if __MAC_OS_X_VERSION_MIN_REQUIRED >= 101200
 #define LJ_TARGET_HAS_GETENTROPY        1
 #endif
-#elif (LJ_TARGET_BSD && !defined(__NetBSD__)) || LJ_TARGET_SOLARIS || LJ_TARGET_CYGWIN || LJ_TARGET_QNX
+#elif (LJ_TARGET_BSD && !defined(__NetBSD__)) || LJ_TARGET_SOLARIS || LJ_TARGET_CYGWIN || LJ_TARGET_QNX || LJ_TARGET_HURD
 #define LJ_TARGET_HAS_GETENTROPY        1
 #endif