[Buildroot] [PATCH 1/1] Use libm.so when testing external compiler ABI

[Peter Kümmel]

crt1.o could not be used to test for eabihf because
it does not list the tag Tag_ABI_VFP_args.

Signed-off-by: Peter Kümmel <syntheticpp at gmx.net>
---
 toolchain/helpers.mk | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/toolchain/helpers.mk b/toolchain/helpers.mk
index faa9d90..c41d757 100644
--- a/toolchain/helpers.mk
+++ b/toolchain/helpers.mk
@@ -284,8 +284,8 @@ check_arm_abi = \
 		echo "External toolchain uses the unsuported OABI" ; \
 		exit 1 ; \
 	fi ; \
-	EXT_TOOLCHAIN_CRT1=`LANG=C $${__CROSS_CC} -print-file-name=crt1.o` ; \
-	if $${__CROSS_READELF} -A $${EXT_TOOLCHAIN_CRT1} | grep -q "Tag_ABI_VFP_args:" ; then \
+	EXT_TOOLCHAIN_LIBM=`LANG=C $${__CROSS_CC} -print-file-name=libm.so` ; \
+	if $${__CROSS_READELF} -A $${EXT_TOOLCHAIN_LIBM} | grep -q "Tag_ABI_VFP_args:" ; then \
 		EXT_TOOLCHAIN_ABI="eabihf" ; \
 	else \
 		EXT_TOOLCHAIN_ABI="eabi" ; \
-- 
1.8.3.2