spec: Enable OpenBLAS support

Some hacking[1] because we have LP64 build of openblas.

Link: https://github.com/ggerganov/llama.cpp/issues/7708
Signed-off-by: Vitaly Chikunov <vt@altlinux.org>

.gear/llama.cpp.spec

@@ -27,6 +27,7 @@ BuildRequires: cmake
 BuildRequires: ctest
 BuildRequires: gcc-c++
 BuildRequires: libcurl-devel
+BuildRequires: libopenblas-devel
 
 %description
 Plain C/C++ implementation (of inference of LLaMA model) without
@@ -65,9 +66,12 @@ Overall this is all raw and EXPERIMENTAL, no warranty, no support.
 
 %prep
 %setup
+sed -i '/BLA_SIZEOF_INTEGER/s/8/ANY/' CMakeLists.txt
 
 %build
 %cmake \
+	-DLLAMA_BLAS=ON \
+	-DLLAMA_BLAS_VENDOR=OpenBLAS \
 	-DLLAMA_CURL=ON \
 	%nil
 grep ^LLAMA %_cmake__builddir/CMakeCache.txt | sort | tee build-options.txt