Pick up clang_rt static archives compiler internal libraries
Libtool checks only for libraries linked as -l* when trying to
find internal compiler libraries. Clang, however uses the absolute
path to link its internal libraries e.g. compiler_rt. This patch
handles clang's statically linked libraries when finding internal
compiler libraries.
https://crbug.com/749263
https://debbugs.gnu.org/cgi/bugreport.cgi?bug=27866
diff --git a/m4/libtool.m4 b/m4/libtool.m4
index 4b4ea72..8e0a46b 100644
--- a/m4/libtool.m4
+++ b/m4/libtool.m4
@@ -7758,7 +7758,7 @@
for p in `eval "$output_verbose_link_cmd"`; do
case $prev$p in
- -L* | -R* | -l*)
+ -L* | -R* | -l* | */libclang_rt.*.a)
# Some compilers place space between "-{L,R,l}" and the path.
# Remove the space.
if test x-L = x"$p" ||