From 6a41635e29c4a6c064b1f66e79a8fe2026f4361b Mon Sep 17 00:00:00 2001
From: Khem Raj <raj.khem@gmail.com>
Date: Mon, 2 Mar 2015 01:32:49 +0000
Subject: [PATCH 05/14] Explicitly link with libm on uclibc

Description:

We do not need to have the libtool patch anymore for binutils after
libtool has been updated upstream it include support for it. However
for building gas natively on uclibc systems we have to link it with
-lm so that it picks up missing symbols.

/local/build_area/BUILD/arm_v5t_le_uclibc/binutils-2.17.50/objdir/libiberty/pic/libiberty.a(floatformat.o):
In function `floatformat_from_double':
floatformat.c:(.text+0x1ec): undefined reference to `frexp'
floatformat.c:(.text+0x2f8): undefined reference to `ldexp'
/local/build_area/BUILD/arm_v5t_le_uclibc/binutils-2.17.50/objdir/libiberty/pic/libiberty.a(floatformat.o):
In function `floatformat_to_double':
floatformat.c:(.text+0x38a): undefined reference to `ldexp'
floatformat.c:(.text+0x3d2): undefined reference to `ldexp'
floatformat.c:(.text+0x43e): undefined reference to `ldexp'
floatformat.c:(.text+0x4e2): undefined reference to `ldexp'
collect2: ld returned 1 exit status
make[4]: *** [as-new] Error 1

Upstream-Status: Pending

Signed-off-by: Khem Raj <raj.khem@gmail.com>
---
 gas/configure.tgt | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/gas/configure.tgt b/gas/configure.tgt
index 0b490d4..086e0d2 100644
--- a/gas/configure.tgt
+++ b/gas/configure.tgt
@@ -487,6 +487,12 @@ case ${generic_target} in
   *-*-netware)				fmt=elf em=netware ;;
 esac
 
+case ${generic_target} in
+  arm-*-*uclibc*)
+    need_libm=yes
+    ;;
+esac
+
 case ${cpu_type} in
   aarch64 | alpha | arm | i386 | ia64 | microblaze | mips | ns32k | or1k | or1knd | pdp11 | ppc | sparc | z80 | z8k)
     bfd_gas=yes
-- 
2.7.1