1 files changed, 65 insertions, 0 deletions
diff --git a/testing/lua-lunix/fix-musl-siglist.patch b/testing/lua-lunix/fix-musl-siglist.patch
new file mode 100644
index 0000000000..4db73425da
--- /dev/null
+++ b/testing/lua-lunix/fix-musl-siglist.patch
@@ -0,0 +1,65 @@
+From dc5a24c459da3f169fb289e5f72149c63e3b26d0 Mon Sep 17 00:00:00 2001
+From: William Ahern <william+alpine@25thandClement.com>
+Date: Thu, 14 Apr 2016 20:10:15 +0000
+Subject: [PATCH] musl libc has mt-safe strsignal
+
+---
+ src/unix.c | 17 ++++++++++++++---
+ 1 file changed, 14 insertions(+), 3 deletions(-)
+
+diff --git a/src/unix.c b/src/unix.c
+index 516be9e..46ca166 100644
+--- a/src/unix.c
++++ b/src/unix.c
+@@ -82,6 +82,9 @@
+ 
+ #define UCLIBC_PREREQ(M, m, p) (defined __UCLIBC__ && (__UCLIBC_MAJOR__ > M || (__UCLIBC_MAJOR__ == M && __UCLIBC_MINOR__ > m) || (__UCLIBC_MAJOR__ == M && __UCLIBC_MINOR__ == m && __UCLIBC_SUBLEVEL__ >= p)))
+ 
++/* NB: uClibc defines __GLIBC__ */
++#define MUSL_MAYBE (__linux && !__BIONIC__ && !__GLIBC__ && !__UCLIBC__)
++
+ #define NETBSD_PREREQ(M, m) __NetBSD_Prereq__(M, m, 0)
+ 
+ #define FREEBSD_PREREQ(M, m) (defined __FreeBSD_version && __FreeBSD_version >= ((M) * 100000) + ((m) * 1000))
+@@ -318,11 +321,11 @@
+ #endif
+ 
+ #ifndef HAVE_SYS_SIGLIST
+-#define HAVE_SYS_SIGLIST 1
++#define HAVE_SYS_SIGLIST (!MUSL_MAYBE && !__sun && !_AIX)
+ #endif
+ 
+ #ifndef HAVE_DECL_SYS_SIGLIST
+-#define HAVE_DECL_SYS_SIGLIST 1
++#define HAVE_DECL_SYS_SIGLIST HAVE_SYS_SIGLIST
+ #endif
+ 
+ #ifndef STRERROR_R_CHAR_P
+@@ -2607,6 +2610,7 @@ static void unixL_random_buf(lua_State *L, void *buf, size_t bufsiz, const unsig
+  * 	              returns NULL on bad signo
+  * 	Linux/glibc : safe'ish since 1998; TLS buffer for bad signo;
+  * 	              gettext for good signo (is gettext thread-safe?)
++ * 	 Linux/musl : safe; localized; locale structures never deallocated
+  * 	    FreeBSD : safe since 8.1; TLS buffer
+  * 	     NetBSD : not safe as of 6.1; static buffer
+  * 	    OpenBSD : not safe as of 5.6; static buffer
+@@ -2621,11 +2625,18 @@ static void unixL_random_buf(lua_State *L, void *buf, size_t bufsiz, const unsig
+  * has _sys_siglistp instead of sys_siglist. But we use strsignal on those
+  * platforms.
+  */
++#ifndef HAVE_MTSAFE_STRSIGNAL
++#define HAVE_MTSAFE_STRSIGNAL_ \
++	(__sun || GLIBC_PREREQ(0,0) || MUSL_MAYBE || \
++	 FREEBSD_PREREQ(8,1) || defined __APPLE__ || defined _AIX)
++#define HAVE_MTSAFE_STRSIGNAL (HAVE_STRSIGNAL && HAVE_MTSAFE_STRSIGNAL_)
++#endif
++
+ static const char *unixL_strsignal(lua_State *L, int signo) {
+ 	const char *info;
+ 	unixL_State *U;
+ 
+-#if HAVE_STRSIGNAL && (USE_STRSIGNAL || __sun || GLIBC_PREREQ(0,0) || FREEBSD_PREREQ(8,1) || defined __APPLE__ || defined _AIX)
++#if HAVE_MTSAFE_STRSIGNAL
+ 	/* AIX strsignal(3) cannot handle bad signo */
+ 	if (signo >= 0 && signo < NSIG && (info = strsignal(signo)))
+ 		return info;