[source] util-linux: fix build with uclibc

[LEDE Commits]

hauke pushed a commit to source.git, branch lede-17.01:
https://git.lede-project.org/d179aa87698d18ca18cda11425229328822c7f06

commit d179aa87698d18ca18cda11425229328822c7f06
Author: Hauke Mehrtens <hauke.mehrtens at intel.com>
AuthorDate: Thu Apr 13 18:07:05 2017 +0200

    util-linux: fix build with uclibc
    
    Fix build of scriptreplay with uClibc.
    Some parts of the libm detection were backported to 2.29.2, but some
    parts were missing, which are added here. This patch is needed when
    libm is a separate library, this is not needed for LEDE master, because
    libm is there integrated in the libc for uClibc and musl.
    
    Signed-off-by: Hauke Mehrtens <hauke.mehrtens at intel.com>
---
 .../001-uclibc_add_libm_to_scriptreplay.patch      | 24 ++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/package/utils/util-linux/patches/001-uclibc_add_libm_to_scriptreplay.patch b/package/utils/util-linux/patches/001-uclibc_add_libm_to_scriptreplay.patch
new file mode 100644
index 0000000..a291f6a
--- /dev/null
+++ b/package/utils/util-linux/patches/001-uclibc_add_libm_to_scriptreplay.patch
@@ -0,0 +1,24 @@
+From feda4342df1ced25df3d200ed23469e740196c86 Mon Sep 17 00:00:00 2001
+From: Karel Zak <kzak at redhat.com>
+Date: Wed, 18 Jan 2017 13:17:21 +0100
+Subject: build-sys: use -lm for scriptreplay if necessary
+
+Reported-by: Bert van Hall <bert.vanhall at avionic-design.de>
+Addresses: https://github.com/karelzak/util-linux/pull/397
+Signed-off-by: Karel Zak <kzak at redhat.com>
+---
+ configure.ac             | 7 +++++++
+ term-utils/Makemodule.am | 2 +-
+ 2 files changed, 8 insertions(+), 1 deletion(-)
+
+--- a/term-utils/Makemodule.am
++++ b/term-utils/Makemodule.am
+@@ -21,7 +21,7 @@ if BUILD_SCRIPTREPLAY
+ usrbin_exec_PROGRAMS += scriptreplay
+ dist_man_MANS += term-utils/scriptreplay.1
+ scriptreplay_SOURCES = term-utils/scriptreplay.c
+-scriptreplay_LDADD = $(LDADD) libcommon.la
++scriptreplay_LDADD = $(LDADD) libcommon.la $(MATH_LIBS)
+ endif # BUILD_SCRIPTREPLAY
+ 
+