lto: Disable LTO for cairo and libidn2 with clang

There are compile/link time errors

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

1 files changed, 8 insertions, 0 deletions

diff --git a/conf/nonclangable.conf b/conf/nonclangable.conf
index b948678..b15aef1 100644
--- a/conf/nonclangable.conf
+++ b/conf/nonclangable.conf
@@ -295,3 +295,11 @@ BUILD_CC_pn-nss_toolchain-clang = "clang"
 CXXFLAGS_append_pn-apt_toolchain-clang = " -Wno-c++11-narrowing"
 lcl_maybe_fortify_pn-apt_toolchain-clang = ""
 
+# LTO
+# Seems to use symver ASMs see https://stackoverflow.com/questions/46304742/how-to-combine-lto-with-symbol-versioning
+# lib/puny_encode.c:136: multiple definition of `_idn2_punycode_encode'
+LTO_pn-libidn2_toolchain-clang = ""
+
+#libcairo.so: undefined reference to pthread_mutexattr_init [--no-allow-shlib-undefined]
+LTO_pn-cairo_toolchain-clang = ""
+