[openwrt/openwrt] mdadm: fix compilation with musl 1.2.4

[LEDE Commits]

nick pushed a commit to openwrt/openwrt.git, branch master:
https://git.openwrt.org/abec62a5426821c38ac287d21601b8eb237a1246

commit abec62a5426821c38ac287d21601b8eb237a1246
Author: Nick Hainke <vincent at systemli.org>
AuthorDate: Tue May 16 20:07:38 2023 +0200

    mdadm: fix compilation with musl 1.2.4
    
    _LARGEFILE64_SOURCE has to be defined in the source, or CFLAGS can be used
    to pass -D_LARGEFILE64_SOURCE to allow to keep using LFS64 definitions.
    
    Fixes error in the form of:
    restripe.c: In function 'restore_stripes':
    restripe.c:758:43: error: 'off64_t' undeclared (first use in this function); did you mean 'off_t'?
      758 |                                          (off64_t)read_offset) {
          |                                           ^~~~~~~
          |                                           off_t
    restripe.c:758:43: note: each undeclared identifier is reported only once for each function it appears in
    restripe.c:758:51: error: expected ')' before 'read_offset'
      758 |                                          (off64_t)read_offset) {
          |                                                   ^~~~~~~~~~~
          |                                                   )
    restripe.c:757:36: note: to match this '('
      757 |                                 if (lseek64(source, read_offset, 0) !=
          |                                    ^
    make[3]: *** [Makefile:193: restripe.o] Error 1
    
    Fixes: fff878c5bcda ("toolchain/musl: update to 1.2.4")
    Signed-off-by: Nick Hainke <vincent at systemli.org>
---
 package/utils/mdadm/Makefile | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/package/utils/mdadm/Makefile b/package/utils/mdadm/Makefile
index 1828a88972..8070003394 100644
--- a/package/utils/mdadm/Makefile
+++ b/package/utils/mdadm/Makefile
@@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=mdadm
 PKG_VERSION:=4.2
-PKG_RELEASE:=1
+PKG_RELEASE:=2
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.xz
 PKG_SOURCE_URL:=@KERNEL/linux/utils/raid/mdadm
@@ -49,7 +49,8 @@ TARGET_CFLAGS += \
 	-DMAP_DIR='\"/var/run/mdadm\"' \
 	-DMDMON_DIR='\"/var/run/mdadm\"' \
 	-DFAILED_SLOTS_DIR='\"/var/run/mdadm/failed-slots\"' \
-	-DNO_LIBUDEV
+	-DNO_LIBUDEV \
+	-D_LARGEFILE64_SOURCE
 
 TARGET_CXFLAGS = -DNO_LIBUDEV