Add option to build only mtmd library

Author: jpgaribotti

CMakeLists.txt

@@ -81,6 +81,9 @@ option(LLAMA_BUILD_TOOLS    "llama: build tools"          ${LLAMA_STANDALONE})
 option(LLAMA_BUILD_EXAMPLES "llama: build examples"       ${LLAMA_STANDALONE})
 option(LLAMA_BUILD_SERVER   "llama: build server example" ${LLAMA_STANDALONE})
 
+# specific extras
+option(LLAMA_MTMD "llama: multimodal support" OFF)
+
 # 3rd party libs
 option(LLAMA_CURL       "llama: use libcurl to download model from an URL" ON)
 option(LLAMA_LLGUIDANCE "llama-common: include LLGuidance library for structured output in common utils" OFF)
@@ -206,6 +209,10 @@ if (LLAMA_BUILD_COMMON AND LLAMA_BUILD_TOOLS)
     add_subdirectory(tools)
 endif()
 
+if (LLAMA_MTMD)
+  add_subdirectory(tools/mtmd)
+endif()
+
 #
 # install
 #
@@ -241,7 +248,7 @@ if (LLAMA_BUILD_COMMON)
 
 endif()
 
-if (LLAMA_BUILD_TOOLS)
+if (LLAMA_MTMD)
 
   install(
     TARGETS mtmd

tools/mtmd/CMakeLists.txt

@@ -50,6 +50,7 @@ if (TARGET BUILD_INFO)
     add_dependencies(mtmd-helper BUILD_INFO)
 endif()
 
+if (LLAMA_BUILD_TOOLS)
 add_executable(llama-llava-cli    deprecation-warning.cpp)
 add_executable(llama-gemma3-cli   deprecation-warning.cpp)
 add_executable(llama-minicpmv-cli deprecation-warning.cpp)
@@ -61,3 +62,4 @@ set_target_properties  (${TARGET} PROPERTIES OUTPUT_NAME llama-mtmd-cli)
 install                (TARGETS ${TARGET} RUNTIME)
 target_link_libraries  (${TARGET} PRIVATE common mtmd Threads::Threads)
 target_compile_features(${TARGET} PRIVATE cxx_std_17)
+endif()