--- clang-14.log	2022-11-02 22:36:17.884748087 +1100
+++ clang-15.log	2022-11-02 22:36:17.885748084 +1100
@@ -1,22 +1,22 @@
-clang version 15.0.1
+clang version 14.0.1
 Target: x86_64-pc-linux-gnu
 Thread model: posix
-InstalledDir: /usr/lib/llvm/15/bin
-clang version 15.0.1
+InstalledDir: /usr/lib/llvm/14/bin
+clang version 14.0.1
 Target: x86_64-pc-linux-gnu
 Thread model: posix
-InstalledDir: /usr/lib/llvm/15/bin
+InstalledDir: /usr/lib/llvm/14/bin
 Selected GCC installation: /usr/lib/gcc/x86_64-pc-linux-gnu/11.3.0
 Candidate multilib: .;@m64
 Candidate multilib: 32;@m32
 Selected multilib: .;@m64
-clang-15: error: unsupported option '-V -o'
-clang-15: error: no such file or directory: 'garbage'
-clang-15: error: no input files
-clang-15: error: unknown argument '-qversion'; did you mean '--version'?
-clang-15: error: no input files
-clang-15: error: unknown argument '-version'; did you mean '--version'?
-clang-15: error: no input files
+clang-14: error: unsupported option '-V -o'
+clang-14: error: no such file or directory: 'garbage2'
+clang-14: error: no input files
+clang-14: error: unknown argument '-qversion'; did you mean '--version'?
+clang-14: error: no input files
+clang-14: error: unknown argument '-version'; did you mean '--version'?
+clang-14: error: no input files
 
 
 
@@ -104,26 +104,26 @@
 
 
 
-clang-15: error: unsupported option '-V -o'
+clang-14: error: unsupported option '-V -o'
 
-clang version 15.0.1
+clang version 14.0.1
 Target: x86_64-pc-linux-gnu
 Thread model: posix
-InstalledDir: /usr/lib/llvm/15/bin
+InstalledDir: /usr/lib/llvm/14/bin
 Selected GCC installation: /usr/lib/gcc/x86_64-pc-linux-gnu/11.3.0
 Candidate multilib: .;@m64
 Candidate multilib: 32;@m32
 Selected multilib: .;@m64
- "/usr/bin/x86_64-pc-linux-gnu-ld" --eh-frame-hdr -m elf_x86_64 -shared -o garbage /usr/lib/gcc/x86_64-pc-linux-gnu/11.3.0/../../../../lib64/crti.o /usr/lib/gcc/x86_64-pc-linux-gnu/11.3.0/crtbeginS.o -L/usr/lib/gcc/x86_64-pc-linux-gnu/11.3.0 -L/usr/lib/gcc/x86_64-pc-linux-gnu/11.3.0/../../../../lib64 -L/lib/../lib64 -L/usr/lib/../lib64 -L/usr/lib/gcc/x86_64-pc-linux-gnu/11.3.0/../../../../x86_64-pc-linux-gnu/lib -L/lib -L/usr/lib conftest.o -soname conftest -lgcc --as-needed -lgcc_s --no-as-needed -lc -lgcc --as-needed -lgcc_s --no-as-needed /usr/lib/gcc/x86_64-pc-linux-gnu/11.3.0/crtendS.o /usr/lib/gcc/x86_64-pc-linux-gnu/11.3.0/../../../../lib64/crtn.o
-programs: =/usr/lib/llvm/15/bin:/usr/lib/gcc/x86_64-pc-linux-gnu/11.3.0/../../../../x86_64-pc-linux-gnu/bin
-libraries: =/usr/lib/llvm/15/bin/../../../../lib/clang/15.0.1:/usr/lib/gcc/x86_64-pc-linux-gnu/11.3.0:/usr/lib/gcc/x86_64-pc-linux-gnu/11.3.0/../../../../lib64:/lib/../lib64:/usr/lib/../lib64:/usr/lib/gcc/x86_64-pc-linux-gnu/11.3.0/../../../../x86_64-pc-linux-gnu/lib:/lib:/usr/lib
-clang-15: error: unsupported option '-print-multi-os-directory'
+ "/usr/bin/x86_64-pc-linux-gnu-ld" --eh-frame-hdr -m elf_x86_64 -shared -o garbage2 /usr/lib/gcc/x86_64-pc-linux-gnu/11.3.0/../../../../lib64/crti.o /usr/lib/gcc/x86_64-pc-linux-gnu/11.3.0/crtbeginS.o -L/usr/lib/gcc/x86_64-pc-linux-gnu/11.3.0 -L/usr/lib/gcc/x86_64-pc-linux-gnu/11.3.0/../../../../lib64 -L/lib/../lib64 -L/usr/lib/../lib64 -L/usr/lib/gcc/x86_64-pc-linux-gnu/11.3.0/../../../../x86_64-pc-linux-gnu/lib -L/lib -L/usr/lib conftest.o -soname conftest -lgcc --as-needed -lgcc_s --no-as-needed -lc -lgcc --as-needed -lgcc_s --no-as-needed /usr/lib/gcc/x86_64-pc-linux-gnu/11.3.0/crtendS.o /usr/lib/gcc/x86_64-pc-linux-gnu/11.3.0/../../../../lib64/crtn.o
+programs: =/usr/lib/llvm/14/bin:/usr/lib/gcc/x86_64-pc-linux-gnu/11.3.0/../../../../x86_64-pc-linux-gnu/bin
+libraries: =/usr/lib/llvm/14/bin/../../../../lib/clang/14.0.1:/usr/lib/gcc/x86_64-pc-linux-gnu/11.3.0:/usr/lib/gcc/x86_64-pc-linux-gnu/11.3.0/../../../../lib64:/lib/../lib64:/usr/lib/../lib64:/usr/lib/gcc/x86_64-pc-linux-gnu/11.3.0/../../../../x86_64-pc-linux-gnu/lib:/lib:/usr/lib
+clang-14: error: unsupported option '-print-multi-os-directory'
 
 
 
 
 
-/tmp/tmp.c:1:14: warning: call to undeclared library function 'alloca' with type 'void *(unsigned long)'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
+/tmp/tmp.c:1:14: error: call to undeclared library function 'alloca' with type 'void *(unsigned long)'; ISO C99 and later do not support implicit function declarations [-Werror,-Wimplicit-function-declaration]
 int main() { alloca(100); return(1); }
              ^
 /tmp/tmp.c:1:14: note: include the header <stdlib.h> or explicitly provide a declaration for 'alloca'