cmake: add ggml find package (#11369)

* Add initial ggml cmake package

* Add build numbers to ggml find-package

* Expand variables with GGML_ prefix

* Guard against adding to cache variable twice

* Add git to msys2 workflow

* Handle ggml-cpu-* variants

* Link ggml/ggml-base libraries to their targets

* Replace main-cmake-pkg with simple-cmake-pkg

* Interface features require c_std_90

* Fix typo

* Removed unnecessary bracket from status message

* Update examples/simple-cmake-pkg/README.md

Co-authored-by: Georgi Gerganov <ggerganov@gmail.com>

* Update examples/simple-cmake-pkg/README.md

Co-authored-by: Georgi Gerganov <ggerganov@gmail.com>

---------

Co-authored-by: Georgi Gerganov <ggerganov@gmail.com>

examples/main-cmake-pkg/CMakeLists.txt

@@ -1,32 +0,0 @@
-cmake_minimum_required(VERSION 3.12)
-project("llama-cli-cmake-pkg" C CXX)
-set(TARGET llama-cli-cmake-pkg)
-
-find_package(Llama 0.0.1 REQUIRED)
-
-# Bake common functionality in with target. Because applications
-# using the relocatable Llama package should be outside of the
-# source tree, llama-cli-cmake-pkg pretends the dependencies are built-in.
-set(_common_path "${CMAKE_CURRENT_LIST_DIR}/../../common")
-add_library(common OBJECT)
-file(GLOB _common_files
-    "${_common_path}/*.h"
-    "${_common_path}/*.cpp"
-)
-target_sources(common PRIVATE ${_common_files})
-
-# If the common project was part of "llama-cli-cmake-pkg" the transient
-# defines would automatically be attached. Because the common func-
-# tionality is separate, but dependent upon the defines, it must be
-# explicitly extracted from the "llama" target.
-#
-get_target_property(_llama_transient_defines llama
-    INTERFACE_COMPILE_DEFINITIONS)
-
-target_compile_definitions(common PRIVATE "${_llama_transient_defines}")
-
-add_executable(${TARGET} ${CMAKE_CURRENT_LIST_DIR}/../main/main.cpp)
-target_include_directories(${TARGET} PRIVATE ${_common_path})
-install(TARGETS ${TARGET} RUNTIME)
-target_link_libraries(${TARGET} PRIVATE common llama ${CMAKE_THREAD_LIBS_INIT})
-target_compile_features(${TARGET} PRIVATE cxx_std_17)

examples/main-cmake-pkg/README.md

@@ -1,31 +0,0 @@
-# llama.cpp/example/main-cmake-pkg
-
-This program builds [llama-cli](../main) using a relocatable CMake package. It serves as an example of using the `find_package()` CMake command to conveniently include [llama.cpp](https://github.com/ggerganov/llama.cpp) in projects which live outside of the source tree.
-
-## Building
-
-Because this example is "outside of the source tree", it is important to first build/install llama.cpp using CMake. An example is provided here, but please see the [llama.cpp build instructions](../..) for more detailed build instructions.
-
-### Considerations
-
-When hardware acceleration libraries are used (e.g. CUDA, Metal, etc.), CMake must be able to locate the associated CMake package.
-
-### Build llama.cpp and install to C:\LlamaCPP directory
-
-```cmd
-git clone https://github.com/ggerganov/llama.cpp
-cd llama.cpp
-cmake -B build -DBUILD_SHARED_LIBS=OFF -G "Visual Studio 17 2022" -A x64
-cmake --build build --config Release
-cmake --install build --prefix C:/LlamaCPP
-```
-
-### Build llama-cli-cmake-pkg
-
-
-```cmd
-cd ..\examples\main-cmake-pkg
-cmake -B build -DBUILD_SHARED_LIBS=OFF -DCMAKE_PREFIX_PATH="C:/LlamaCPP/lib/cmake/Llama" -G "Visual Studio 17 2022" -A x64
-cmake --build build --config Release
-cmake --install build --prefix C:/MyLlamaApp
-```

examples/simple-cmake-pkg/CMakeLists.txt

@@ -0,0 +1,11 @@
+cmake_minimum_required(VERSION 3.12)
+project(llama-simple-cmake-pkg)
+
+set(TARGET llama-simple-cmake-pkg)
+
+find_package(Llama REQUIRED)
+
+add_executable(${TARGET} ${CMAKE_CURRENT_LIST_DIR}/../simple/simple.cpp)
+install(TARGETS ${TARGET} RUNTIME)
+target_link_libraries(${TARGET} PRIVATE llama ggml::all ${CMAKE_THREAD_LIBS_INIT})
+target_compile_features(${TARGET} PRIVATE cxx_std_17)

examples/simple-cmake-pkg/README.md

@@ -0,0 +1,34 @@
+# llama.cpp/example/simple-cmake-pkg
+
+This program builds [simple](../simple) using a relocatable CMake package. It serves as an example of using the `find_package()` CMake command to conveniently include [llama.cpp](https://github.com/ggerganov/llama.cpp) in projects which live outside of the source tree.
+
+## Building
+
+Because this example is "outside of the source tree", it is important to first build/install llama.cpp using CMake. An example is provided here, but please see the [llama.cpp build instructions](../..) for more detailed build instructions.
+
+### Considerations
+
+When hardware acceleration libraries are used (e.g. CUDA, Metal, Vulkan, etc.), the appropriate dependencies will be searched for automatically. So, for example, when finding a package
+
+### Build llama.cpp and install to llama.cpp/inst
+
+```sh
+git clone https://github.com/ggerganov/llama.cpp
+cd llama.cpp
+cmake -S . -B build
+cmake --build build
+cmake --install build --prefix inst
+
+### Build simple-cmake-pkg
+
+```sh
+cd examples/simple-cmake-pkg
+cmake -S . -B build -DCMAKE_PREFIX_PATH=../../inst/lib/cmake
+cmake --build build
+```
+
+### Run simple-cmake-pkg
+
+```sh
+./build/llama-simple-cmake-pkg -m ./models/llama-7b-v2/ggml-model-f16.gguf "Hello my name is"
+```