Soften windows clang requirement (#7428)

This will no longer error if built with regular gcc on windows.  To help
triage issues that may come in related to different compilers, the runner now
reports the compier used by cgo.

.github/workflows/test.yaml

@@ -138,6 +138,7 @@ jobs:
           $env:HIP_PATH=$(Resolve-Path 'C:\Program Files\AMD\ROCm\*\bin\clang.exe' | split-path | split-path)
           $cores = (Get-ComputerInfo -Property CsProcessors).CsProcessors.NumberOfCores
           write-host $env:HIP_PATH
+          if (!(gcc --version | select-string -quiet clang)) { throw "wrong gcc compiler detected - must be clang" }
           make -C llama print-HIP_PATH print-HIP_LIB_DIR
           make -j $cores rocm
         name: make
@@ -198,6 +199,7 @@ jobs:
           $env:PATH="$gopath;$cudabin;$env:PATH"
           $env:OLLAMA_SKIP_CPU_GENERATE="1"
           $cores = (Get-ComputerInfo -Property CsProcessors).CsProcessors.NumberOfCores
+          if (!(gcc --version | select-string -quiet clang)) { throw "wrong gcc compiler detected - must be clang" }
           make -j $cores cuda_v11
         env:
           OLLAMA_SKIP_CPU_GENERATE: '1'
@@ -257,6 +259,7 @@ jobs:
           $env:CMAKE_SYSTEM_VERSION="10.0.22621.0"
           $env:PATH="$gopath;$gccpath;$env:PATH"
           echo $env:PATH
+          if (!(gcc --version | select-string -quiet clang)) { throw "wrong gcc compiler detected - must be clang" }
           make -j 4      
       - name: 'Build Unix Go Runners'
         if: ${{ ! startsWith(matrix.os, 'windows-') }}