[Buildroot] [PATCH 2/2] toolchain: prevent infinite loop in copy_toolchain_lib_root

[Norbert Lange]

This can happen when there are broken symlinks.

Signed-off-by: Norbert Lange <nolange79 at gmail.com>
---
 toolchain/helpers.mk | 1 +
 1 file changed, 1 insertion(+)

diff --git a/toolchain/helpers.mk b/toolchain/helpers.mk
index aaf2aecd80..7623d68123 100644
--- a/toolchain/helpers.mk
+++ b/toolchain/helpers.mk
@@ -20,6 +20,7 @@ copy_toolchain_lib_root = \
 			if test -h $${LIBPATH} ; then \
 				cp -d $${LIBPATH} $(TARGET_DIR)/$${DESTDIR}/$${LIBNAME}; \
 				LIBPATH="`readlink -f $${LIBPATH}`"; \
+				[ -n "$${LIBPATH}" ] || break; \
 			elif test -f $${LIBPATH}; then \
 				$(INSTALL) -D -m0755 $${LIBPATH} $(TARGET_DIR)/$${DESTDIR}/$${LIBNAME}; \
 				break ; \
-- 
2.34.1