initial commit

dep_examples-1.2.2.1_aarch64_Linux/dep_examples/source/alsalib.cmake

@@ -0,0 +1,52 @@
+cmake_minimum_required(VERSION 3.5)
+
+include(ExternalProject)
+include(FetchContent)
+
+set(TARGET alsalib)
+
+# If ALSA_INSTALL_PATH is set it should point to an externally provided ALSA installation.
+# Otherwise a default version will be built.
+if (ALSA_INSTALL_PATH)
+    add_library(alsalib SHARED IMPORTED GLOBAL)
+    set_target_properties(alsalib PROPERTIES
+        IMPORTED_LOCATION ${ALSA_INSTALL_PATH}/lib/libasound.so
+        INTERFACE_INCLUDE_DIRECTORIES ${ALSA_INSTALL_PATH}/include
+        )
+    return()
+endif()
+
+set(EP_TARGET ${TARGET}_source)
+
+FetchContent_Declare(alsalib_download
+    URL https://www.alsa-project.org/files/pub/lib/alsa-lib-1.0.29.tar.bz2
+)
+
+FetchContent_GetProperties(alsalib_download)
+if (NOT alsalib_download_POPULATED)
+    FetchContent_Populate(alsalib_download)
+endif()
+
+set(EP_INSTALL_DIR ${alsalib_download_SOURCE_DIR}/staging)
+
+ExternalProject_Add(alsalib_build
+    SOURCE_DIR ${alsalib_download_SOURCE_DIR}
+    BINARY_DIR ${alsalib_download_BINARY_DIR}
+
+    CONFIGURE_COMMAND ""
+
+    BUILD_COMMAND CC=${CMAKE_C_COMPILER} ${alsalib_download_SOURCE_DIR}/configure --prefix=${EP_INSTALL_DIR} --host=${TOOLCHAIN_TARGET} --disable-python
+
+    COMMAND make
+)
+
+# CMake known bug - INTERFACE_INCLUDE_DIRECTORIES requires dir to exist at config stage
+file(MAKE_DIRECTORY ${EP_INSTALL_DIR}/include)
+
+add_library(${TARGET} SHARED IMPORTED GLOBAL)
+set_target_properties(${TARGET} PROPERTIES
+    IMPORTED_LOCATION ${EP_INSTALL_DIR}/lib/libasound.so
+    INTERFACE_INCLUDE_DIRECTORIES ${EP_INSTALL_DIR}/include
+)
+add_dependencies(${TARGET} ${EP_TARGET})
+