[CI] Fix openblas (#1613)

* Fix OpenBLAS build

* Fix `LLAMA_BLAS_VENDOR` CMake variable that should be a string and not a boolean.

.github/workflows/build.yml

@@ -165,7 +165,7 @@ jobs:
           - build: 'clblast'
             defines: '-DLLAMA_CLBLAST=ON -DCMAKE_PREFIX_PATH="$env:RUNNER_TEMP/clblast"'
           - build: 'openblas'
-            defines: '-DLLAMA_BLAS=ON -DLLAMA_BLAS_VENDOR=OpenBLAS -DBLAS_INCLUDE_DIRS="$env:RUNNER_TEMP/openblas/include"'
+            defines: '-DLLAMA_BLAS=ON -DLLAMA_BLAS_VENDOR=OpenBLAS -DBLAS_INCLUDE_DIRS="$env:RUNNER_TEMP/openblas/include" -DBLAS_LIBRARIES="$env:RUNNER_TEMP/openblas/lib/openblas.lib"'
 
     steps:
       - name: Clone
@@ -213,7 +213,6 @@ jobs:
           cd build
           cmake .. ${{ matrix.defines }}
           cmake --build . --config Release
-          cp ../LICENSE ./bin/Release/llama.cpp.txt
 
       - name: Add clblast.dll
         id: add_clblast_dll
@@ -258,6 +257,7 @@ jobs:
         id: pack_artifacts
         if: ${{ ( github.event_name == 'push' && github.ref == 'refs/heads/master' ) || github.event.inputs.create_release == 'true' }}
         run: |
+          Copy-Item LICENSE .\build\bin\Release\llama.cpp.txt
           7z a llama-${{ env.BRANCH_NAME }}-${{ steps.commit.outputs.short }}-bin-win-${{ matrix.build }}-x64.zip .\build\bin\Release\*
 
       - name: Upload artifacts

CMakeLists.txt

@@ -66,7 +66,7 @@ endif()
 # 3rd party libs
 option(LLAMA_ACCELERATE                 "llama: enable Accelerate framework"                    ON)
 option(LLAMA_BLAS                       "llama: use BLAS"                                       OFF)
-option(LLAMA_BLAS_VENDOR                "llama: BLA_VENDOR from https://cmake.org/cmake/help/latest/module/FindBLAS.html#blas-lapack-vendors" Generic)
+set(LLAMA_BLAS_VENDOR "Generic" CACHE STRING "llama: BLAS library vendor")
 option(LLAMA_CUBLAS                     "llama: use cuBLAS"                                     OFF)
 set(LLAMA_CUDA_DMMV_X "32" CACHE STRING "llama: x stride for dmmv CUDA kernels")
 set(LLAMA_CUDA_DMMV_Y "1" CACHE STRING  "llama: y block size for dmmv CUDA kernels")