Build only the specific library targets LLamaSharp needs

Instead of building all llama.cpp targets (CLI tools, benchmarks, server,
examples), use cmake --target to build only the shared libraries that
LLamaSharp actually uses: ggml, ggml-base, ggml-cpu/cuda/vulkan, llama,
and mtmd. This skips ~40 unnecessary targets and their dependencies.

Author: m0nsky

.github/workflows/compile.yml

@@ -60,7 +60,7 @@ jobs:
           mkdir build
           cd build
           cmake .. ${{ env.COMMON_DEFINE }} ${{ env.LINUX_RPATH_DEFINE }} ${{ matrix.defines }}
-          cmake --build . --config Release -j $(nproc)
+          cmake --build . --config Release -j $(nproc) --target ggml ggml-base ggml-cpu llama mtmd
           ls -R
       - uses: actions/upload-artifact@v4
         with:
@@ -125,7 +125,7 @@ jobs:
           mkdir build
           cd build
           cmake .. ${{ env.COMMON_DEFINE }} ${{ env.LINUX_RPATH_DEFINE }} ${{ matrix.defines }}
-          cmake --build . --config Release -j $(nproc)
+          cmake --build . --config Release -j $(nproc) --target ggml ggml-base ggml-cpu llama mtmd
           ls -R
       - uses: actions/upload-artifact@v4
         with:
@@ -181,7 +181,7 @@ jobs:
           mkdir build
           cd build
           cmake .. ${{ env.COMMON_DEFINE }} ${{ matrix.defines }}
-          cmake --build . --config Release -j ${env:NUMBER_OF_PROCESSORS}
+          cmake --build . --config Release -j ${env:NUMBER_OF_PROCESSORS} --target ggml ggml-base ggml-cpu llama mtmd
           tree /f
 
       - name: Upload artifacts (llama)
@@ -237,7 +237,7 @@ jobs:
           mkdir build
           cd build
           cmake .. ${{ env.COMMON_DEFINE }} ${{ matrix.defines }}
-          cmake --build . --config Release -j ${env:NUMBER_OF_PROCESSORS}
+          cmake --build . --config Release -j ${env:NUMBER_OF_PROCESSORS} --target ggml ggml-base ggml-cpu llama mtmd
           tree /f
 
       - name: Upload artifacts (llama)
@@ -314,15 +314,15 @@ jobs:
                 mkdir build
                 cd build
                 cmake .. ${{ env.COMMON_DEFINE }} -DGGML_VULKAN=ON
-                cmake --build . --config Release -j ${env:NUMBER_OF_PROCESSORS}
+                cmake --build . --config Release -j ${env:NUMBER_OF_PROCESSORS} --target ggml ggml-base ggml-vulkan llama mtmd
                 ls -R
           - name: Build (Linux)
             if: ${{ matrix.os == 'ubuntu-22.04' }}
             run: |
                 mkdir build
                 cd build
                 cmake .. ${{ env.COMMON_DEFINE }} ${{ env.LINUX_RPATH_DEFINE }} -DGGML_VULKAN=ON
-                cmake --build . --config Release -j $(nproc)
+                cmake --build . --config Release -j $(nproc) --target ggml ggml-base ggml-vulkan llama mtmd
                 ls -R
           - name: Upload llama artifacts (Windows)
             if: ${{ matrix.os == 'windows-latest' }}
@@ -436,7 +436,7 @@ jobs:
           mkdir build
           cd build
           cmake .. ${{ env.COMMON_DEFINE }} -DGGML_CUDA=ON -DCMAKE_CUDA_FLAGS=-w
-          cmake --build . --config Release -j ${env:NUMBER_OF_PROCESSORS}
+          cmake --build . --config Release -j ${env:NUMBER_OF_PROCESSORS} --target ggml ggml-base ggml-cuda llama mtmd
           ls -R
 
       - name: Build (Linux)
@@ -447,7 +447,7 @@ jobs:
           mkdir build
           cd build
           cmake .. ${{ env.COMMON_DEFINE }} ${{ env.LINUX_RPATH_DEFINE }} -DGGML_CUDA=ON -DCMAKE_CUDA_FLAGS=-w
-          cmake --build . --config Release -j $(nproc)
+          cmake --build . --config Release -j $(nproc) --target ggml ggml-base ggml-cuda llama mtmd
           ls -R
 
       - name: Upload artifacts (Windows)
@@ -530,10 +530,13 @@ jobs:
         include:
           - build: 'arm64'
             defines: '-DCMAKE_OSX_ARCHITECTURES=arm64 -DGGML_METAL_EMBED_LIBRARY=ON -DGGML_METAL_USE_BF16=ON'
+            targets: '--target ggml ggml-base ggml-cpu ggml-blas ggml-metal llama mtmd'
           - build: 'x64'
             defines: '-DCMAKE_OSX_ARCHITECTURES=x86_64 -DGGML_METAL=OFF -DGGML_AVX=ON -DGGML_AVX2=ON'
+            targets: '--target ggml ggml-base ggml-cpu ggml-blas llama mtmd'
           - build: 'x64-rosetta2'
             defines: '-DCMAKE_OSX_ARCHITECTURES=x86_64 -DGGML_METAL=OFF -DGGML_AVX=OFF -DGGML_AVX2=OFF'
+            targets: '--target ggml ggml-base ggml-cpu ggml-blas llama mtmd'
     env:
       MACOS_RPATH_DEFINE: "-DCMAKE_INSTALL_RPATH='@loader_path' -DCMAKE_BUILD_WITH_INSTALL_RPATH=ON"
     runs-on: macos-14
@@ -553,7 +556,7 @@ jobs:
           mkdir build
           cd build
           cmake .. ${{ env.COMMON_DEFINE }} ${{ env.MACOS_RPATH_DEFINE }} ${{ matrix.defines }}
-          cmake --build . --config Release -j $(sysctl -n hw.logicalcpu)
+          cmake --build . --config Release -j $(sysctl -n hw.logicalcpu) ${{ matrix.targets }}
           ls -R
       - name: Upload ggml
         uses: actions/upload-artifact@v4
@@ -628,7 +631,7 @@ jobs:
           # export-lora not supported on 32 bit machines hence breaks x86 build
           sed -i '/add_subdirectory(export-lora)/d' examples/CMakeLists.txt # remove export-lora from examples
           cmake ${{ env.COMMON_DEFINE }} ${{ env.CMAKE_FLAGS }} ${{ matrix.defines }} -B build
-          cmake --build build --config Release -j $(nproc)
+          cmake --build build --config Release -j $(nproc) --target ggml ggml-base ggml-cpu llama mtmd
       - name: Upload Llama
         uses: actions/upload-artifact@v4
         with: