grubby: Link with libexecinfo on musl

Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>

meta-initramfs/recipes-devtools/grubby/grubby/0001-Add-another-variable-LIBS-to-provides-libraries-from.patch

@@ -0,0 +1,26 @@
+From 22afaa21b4b258082be591e54c99e1ba6fbd7748 Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Sat, 15 Jul 2017 10:19:22 -0700
+Subject: [PATCH 1/2] Add another variable LIBS to provides libraries from env
+
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+---
+ Makefile | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/Makefile b/Makefile
+index ac14404..92a8e73 100644
+--- a/Makefile
++++ b/Makefile
+@@ -27,7 +27,7 @@ RPM_OPT_FLAGS ?= -O2 -g -pipe -Wp,-D_FORTIFY_SOURCE=2 -fstack-protector
+ CFLAGS += $(RPM_OPT_FLAGS) -std=gnu99 -Wall -Werror -Wno-error=unused-function -Wno-unused-function -ggdb
+ LDFLAGS := 
+ 
+-grubby_LIBS = -lblkid -lpopt
++grubby_LIBS = -lblkid -lpopt ${LIBS}
+ 
+ all: grubby
+ 
+-- 
+2.13.3
+

meta-initramfs/recipes-devtools/grubby/grubby/0002-include-paths.h-for-_PATH_MOUNTED.patch

@@ -0,0 +1,25 @@
+From 8f844ac7f44b8dc428d06cd6958c5f32d383d01c Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Sat, 15 Jul 2017 10:19:50 -0700
+Subject: [PATCH 2/2] include paths.h for _PATH_MOUNTED
+
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+---
+ grubby.c | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/grubby.c b/grubby.c
+index 47a1a15..59f74a9 100644
+--- a/grubby.c
++++ b/grubby.c
+@@ -34,6 +34,7 @@
+ #include <libgen.h>
+ #include <execinfo.h>
+ #include <signal.h>
++#include <paths.h>
+ #include <blkid/blkid.h>
+ 
+ #include "log.h"
+-- 
+2.13.3
+

meta-initramfs/recipes-devtools/grubby/grubby_8.40.bb

@@ -9,11 +9,14 @@ LICENSE = "GPLv2+"
 LIC_FILES_CHKSUM = "file://COPYING;md5=892f569a555ba9c07a568a7c0c4fa63a"
 
 DEPENDS = "popt util-linux"
+DEPENDS_append_libc-musl = " libexecinfo"
 
 SRC_URI = "https://github.com/rhinstaller/${BPN}/archive/${PV}-1.tar.gz;downloadfilename=${BPN}-${PV}-1.tar.gz \
            file://grubby-rename-grub2-editenv-to-grub-editenv.patch \
            file://run-ptest \
-"
+           file://0001-Add-another-variable-LIBS-to-provides-libraries-from.patch \
+           file://0002-include-paths.h-for-_PATH_MOUNTED.patch \
+           "
 
 SRC_URI[md5sum] = "1005907b275d6d93368d045274537d86"
 SRC_URI[sha256sum] = "85f1c678484f74c8978e8643451594967defce463a86c35cb1ee56d12767a9df"
@@ -24,8 +27,10 @@ RDEPENDS_${PN} += "dracut"
 
 inherit autotools-brokensep ptest
 
-EXTRA_OEMAKE = "-e 'CC=${CC}' 'LDFLAGS=${LDFLAGS}'"
+EXTRA_OEMAKE = "-e 'CC=${CC}' 'LDFLAGS=${LDFLAGS}' LIBS='${LIBS}'"
 
+LIBS_libc-musl = "-lexecinfo"
+LIBS ?= ""
 do_install_ptest() {
     install -d ${D}${PTEST_PATH}
     cp -r ${S}/test ${S}/test.sh ${D}${PTEST_PATH}