main/musl: various fixes from git master, and packaging fixes

- use upstream commits for all arm pie/unwind fixes
- replace getopt with BSD licensed GNU compatible getopt
- set proper SONAME for the libc generated for packaging purposes
- rename libc.so to be ld-musl-$ARCH.so.1 and point the SONAME
  and ldd links to it. this allows libc.so to go to -dev package
  as it will be used for compiling only.
- move specs file to musl-crosstool subpackage

1 files changed, 31 insertions, 0 deletions

diff --git a/main/musl/0005-add-NFDBITS-in-sys-select.h-with-appropriate-feature.patch b/main/musl/0005-add-NFDBITS-in-sys-select.h-with-appropriate-feature.patch
new file mode 100644
index 0000000000..3738bc5620
--- /dev/null
+++ b/main/musl/0005-add-NFDBITS-in-sys-select.h-with-appropriate-feature.patch
@@ -0,0 +1,31 @@
+From 9b9dc74b67b9ecd30db9f3266a5ce309b0ffbfef Mon Sep 17 00:00:00 2001
+From: Rich Felker <dalias@aerifal.cx>
+Date: Sat, 6 Jul 2013 01:12:28 -0400
+Subject: [PATCH 5/9] add NFDBITS in sys/select.h with appropriate feature
+ tests
+
+the main use for this macro seems to be knowing the correct allocation
+granularity for dynamic-sized fd_set objects. such usage is
+non-conforming and results in undefined behavior, but it is widespread
+in applications.
+---
+ include/sys/select.h | 3 +++
+ 1 file changed, 3 insertions(+)
+
+diff --git a/include/sys/select.h b/include/sys/select.h
+index c5a2877..e25257d 100644
+--- a/include/sys/select.h
++++ b/include/sys/select.h
+@@ -32,6 +32,9 @@ typedef struct
+ int select (int, fd_set *__restrict, fd_set *__restrict, fd_set *__restrict, struct timeval *__restrict);
+ int pselect (int, fd_set *__restrict, fd_set *__restrict, fd_set *__restrict, const struct timespec *__restrict, const sigset_t *__restrict);
+ 
++#if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
++#define NFDBITS (8*(int)sizeof(long))
++#endif
+ 
+ #ifdef __cplusplus
+ }
+-- 
+1.8.3.2
+