I tried to build m-c today with clang 5.0 and icecream using the following
mozconfig:
```
mk_add_options MOZ_MAKE_FLAGS="-j$(icecc-jobs)"
mk_add_options 'export CCACHE_PREFIX=icecc'
mk_add_options "export RUSTC_WRAPPER=sccache"
export CC=clang
export CXX=clang++
ac_add_options --with-ccache
```
The result is an error during config:
```
0:02.58 checking the target C compiler version... 5.0.0
0:05.91 checking the target C compiler works... no
0:05.91 DEBUG: Creating `/tmp/conftest.oIC8nq.c` with content:
0:05.91 DEBUG: |
0:05.91 DEBUG: | int
0:05.91 DEBUG: | main(void)
0:05.91 DEBUG: | {
0:05.91 DEBUG: |
0:05.91 DEBUG: | ;
0:05.91 DEBUG: | return 0;
0:05.91 DEBUG: | }
0:05.91 DEBUG: Executing: `/usr/bin/ccache /usr/bin/clang -std=gnu99 -c
/tmp/conftest.oIC8nq.c`
0:05.91 DEBUG: The command returned non-zero exit status 127.
0:05.91 DEBUG: Its error output was:
0:05.91 DEBUG: | usr/bin/clang: error while loading shared libraries:
libLLVM-5.0.so: cannot open shared object file: No such file or directory
0:05.91 DEBUG: | ICECC[8371] 17:45:53: Compiled on 10.251.24.73
0:05.91 ERROR: Failed compiling a simple C source with the target C compiler
0:05.94 *** Fix above errors and then restart with\
0:05.94 "/usr/bin/make -f client.mk build"
0:05.94 make[2]: *** [/projects/mozilla-unified/client.mk:2
```
I know I can build using gcc+icecream or using clang without icecream, but does
anyone know how to combine clang and icecream to make it work?
Thanks,
zb.
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