ruby,m4: Link with compiler-rt

Fixes issues like
undefined reference to `__mulodi4'

see
https://bugs.llvm.org/show_bug.cgi?id=28629

Signed-off-by: Khem Raj <raj.khem@gmail.com>

1 files changed, 9 insertions, 0 deletions

diff --git a/conf/nonclangable.conf b/conf/nonclangable.conf
index 6b600e5..bbeb595 100644
--- a/conf/nonclangable.conf
+++ b/conf/nonclangable.conf
@@ -191,3 +191,12 @@ CPPFLAGS_append_pn-memcached_toolchain-clang = " -Wno-error=embedded-directive"
 #| /tmp/mcp2515-578c41.s:1821: Error: r13 not allowed here -- `sub.w sp,r6,#8'
 #| clang-7: error: assembler command failed with exit code 1 (use -v to see invocation)
 TUNE_CCARGS_remove_pn-upm_toolchain-clang = "-no-integrated-as"
+
+#| /usr/src/debug/ruby/2.5.1-r0/build/../ruby-2.5.1/process.c:7073: undefined reference to `__mulodi4'
+#| clang-7: error: linker command failed with exit code 1 (use -v to see invocation)
+
+LDFLAGS_append_pn-ruby_toolchain-clang = " -rtlib=compiler-rt"
+LDFLAGS_append_pn-m4_toolchain-clang = " -rtlib=compiler-rt"
+
+
+