xz: cmake build

Author: scivision

CMakeLists.txt

@@ -3,7 +3,7 @@ cmake_minimum_required(VERSION 3.20...3.23)
 
 # -- must override compiler to be gcc on Linux and clang on Macos.
 # otherwise, Autotools is too shaky.
-# Intel complier icx/icpx works but is more than 100x slower to build.
+# Intel compiler icx/icpx works but is more than 100x slower to build.
 if(APPLE)
   set(CC clang)
   set(CMAKE_C_COMPILER clang)

libraries.json

@@ -24,8 +24,8 @@
   "tag": "OpenSSL_1_1_1m"
 },
 "xz": {
-  "url": "https://tukaani.org/xz/xz-5.2.5.tar.xz",
-  "sha256": "3e1e518ffc912f86608a8cb35e4bd41ad1aec210df2a47aaa1f95e7f5576ef56"
+  "git": "https://github.com/xz-mirror/xz.git",
+  "tag": "v5.2.5"
 },
 "zlib": {
   "url" : "https://github.com/zlib-ng/zlib-ng/archive/refs/tags/2.0.6.tar.gz",

lzma.cmake

@@ -4,22 +4,49 @@
 
 include(ExternalProject)
 
-string(JSON xz_url GET ${json_meta} xz url)
-string(JSON xz_sha256 GET ${json_meta} xz sha256)
-
-set(xz_args
---prefix=${CMAKE_INSTALL_PREFIX}
---disable-doc
-CC=${CC}
-)
-
-ExternalProject_Add(xz
-URL ${xz_url}
-URL_HASH SHA256=${xz_sha256}
-CONFIGURE_COMMAND <SOURCE_DIR>/configure ${xz_args} CFLAGS=${CMAKE_C_FLAGS} LDFLAGS=${LDFLAGS}
-BUILD_COMMAND ${MAKE_EXECUTABLE} -j
-INSTALL_COMMAND ${MAKE_EXECUTABLE} -j install
-TEST_COMMAND ""
-CONFIGURE_HANDLED_BY_BUILD ON
-INACTIVITY_TIMEOUT 15
-)
+string(JSON xz_url GET ${json_meta} xz git)
+string(JSON xz_tag GET ${json_meta} xz tag)
+
+
+set(xz_build_system cmake)
+
+if(xz_build_system STREQUAL cmake)
+
+  set(xz_cmake_args
+  -DBUILD_TESTING:BOOL=false
+  -DCMAKE_BUILD_TYPE=Release
+  -DCMAKE_INSTALL_PREFIX:PATH=${CMAKE_INSTALL_PREFIX}
+  -DBUILD_SHARED_LIBS:BOOL=${BUILD_SHARED_LIBS}
+  -DCMAKE_C_COMPILER=${CMAKE_C_COMPILER}
+  )
+
+  ExternalProject_Add(xz
+  GIT_REPOSITORY ${xz_url}
+  GIT_TAG ${xz_tag}
+  GIT_SHALLOW true
+  TEST_COMMAND ""
+  CMAKE_ARGS ${xz_cmake_args}
+  CONFIGURE_HANDLED_BY_BUILD ON
+  INACTIVITY_TIMEOUT 15
+  )
+
+else()
+
+  set(xz_args
+  --prefix=${CMAKE_INSTALL_PREFIX}
+  --disable-doc
+  CC=${CC}
+  )
+
+  ExternalProject_Add(xz
+  URL ${xz_url}
+  URL_HASH SHA256=${xz_sha256}
+  CONFIGURE_COMMAND <SOURCE_DIR>/configure ${xz_args} CFLAGS=${CMAKE_C_FLAGS} LDFLAGS=${LDFLAGS}
+  BUILD_COMMAND ${MAKE_EXECUTABLE} -j
+  INSTALL_COMMAND ${MAKE_EXECUTABLE} -j install
+  TEST_COMMAND ""
+  CONFIGURE_HANDLED_BY_BUILD ON
+  INACTIVITY_TIMEOUT 15
+  )
+
+endif()