libarchive: Simplify hard-coded options for build within CMake

Take advantage of policy CMP0077 NEW behavior to hard-code settings,
defined by `option()` calls in upstream libarchive, without adding
them to our cache.

CMakeLists.txt

@@ -606,38 +606,37 @@ macro (CMAKE_BUILD_UTILITIES)
     set(ZLIB_INCLUDE_DIR ${CMAKE_ZLIB_INCLUDES})
     set(ZLIB_LIBRARY ${CMAKE_ZLIB_LIBRARIES})
     add_definitions(-DLIBARCHIVE_STATIC)
-    # FIXME: Once CMake 3.13+ is required, drop CACHE and use CMP0077.
-    set(ENABLE_MBEDTLS OFF CACHE INTERNAL "libarchive: No mbed TLS")
-    set(ENABLE_NETTLE OFF CACHE INTERNAL "libarchive: No Nettle")
+    set(ENABLE_MBEDTLS OFF)
+    set(ENABLE_NETTLE OFF)
     if(DEFINED CMAKE_USE_OPENSSL)
-      set(ENABLE_OPENSSL ${CMAKE_USE_OPENSSL} CACHE INTERNAL "libarchive: Use OpenSSL?")
+      set(ENABLE_OPENSSL "${CMAKE_USE_OPENSSL}")
     else()
-      set(ENABLE_OPENSSL OFF CACHE INTERNAL "libarchive: Use OpenSSL?")
-    endif()
-    set(ENABLE_LIBB2 OFF CACHE INTERNAL "libarchive: No LIBB2")
-    set(ENABLE_LZ4 OFF CACHE INTERNAL "libarchive: No LZ4")
-    set(ENABLE_LZO OFF CACHE INTERNAL "libarchive: No LZO")
-    set(ENABLE_LZMA ON CACHE INTERNAL "libarchive: Use LZMA")
-    set(ENABLE_ZSTD ON CACHE INTERNAL "libarchive: Use ZSTD")
-    set(ENABLE_ZLIB ON CACHE INTERNAL "libarchive: Use ZLIB")
-    set(ENABLE_BZip2 ON CACHE INTERNAL "libarchive: Use BZip2")
-    set(ENABLE_LIBXML2 OFF CACHE INTERNAL "libarchive: No LibXML2")
-    set(ENABLE_EXPAT OFF CACHE INTERNAL "libarchive: No Expat")
-    set(ENABLE_PCREPOSIX OFF CACHE INTERNAL "libarchive: No PCREPOSIX")
-    set(ENABLE_LibGCC OFF CACHE INTERNAL "libarchive: No LibGCC")
-    set(ENABLE_CNG OFF CACHE INTERNAL "libarchive: No CNG")
-    set(ENABLE_TAR OFF CACHE INTERNAL "libarchive: No tar command-line tool")
-    set(ENABLE_TAR_SHARED OFF CACHE INTERNAL "libarchive: No tar command-line tool")
-    set(ENABLE_CPIO OFF CACHE INTERNAL "libarchive: No cpio command-line tool")
-    set(ENABLE_CPIO_SHARED OFF CACHE INTERNAL "libarchive: No cpio command-line tool")
-    set(ENABLE_CAT OFF CACHE INTERNAL "libarchive: No cat command-line tool")
-    set(ENABLE_CAT_SHARED OFF CACHE INTERNAL "libarchive: No cat command-line tool")
-    set(ENABLE_XATTR OFF CACHE INTERNAL "libarchive: No extended attribute support")
-    set(ENABLE_ACL OFF CACHE INTERNAL "libarchive: No ACL support")
-    set(ENABLE_ICONV OFF CACHE INTERNAL "libarchive: No iconv support")
-    set(ENABLE_TEST OFF CACHE INTERNAL "libarchive: No tests")
-    set(ENABLE_COVERAGE OFF CACHE INTERNAL "libarchive: No coverage")
-    set(ENABLE_INSTALL OFF CACHE INTERNAL "libarchive: No installation")
+      set(ENABLE_OPENSSL OFF)
+    endif()
+    set(ENABLE_LIBB2 OFF)
+    set(ENABLE_LZ4 OFF)
+    set(ENABLE_LZO OFF)
+    set(ENABLE_LZMA ON)
+    set(ENABLE_ZSTD ON)
+    set(ENABLE_ZLIB ON)
+    set(ENABLE_BZip2 ON)
+    set(ENABLE_LIBXML2 OFF)
+    set(ENABLE_EXPAT OFF)
+    set(ENABLE_PCREPOSIX OFF)
+    set(ENABLE_LibGCC OFF)
+    set(ENABLE_CNG OFF)
+    set(ENABLE_TAR OFF)
+    set(ENABLE_TAR_SHARED OFF)
+    set(ENABLE_CPIO OFF)
+    set(ENABLE_CPIO_SHARED OFF)
+    set(ENABLE_CAT OFF)
+    set(ENABLE_CAT_SHARED OFF)
+    set(ENABLE_XATTR OFF)
+    set(ENABLE_ACL OFF)
+    set(ENABLE_ICONV OFF)
+    set(ENABLE_TEST OFF)
+    set(ENABLE_COVERAGE OFF)
+    set(ENABLE_INSTALL OFF)
     set(POSIX_REGEX_LIB "" CACHE INTERNAL "libarchive: No POSIX regular expression support")
     set(ENABLE_SAFESEH "" CACHE INTERNAL "libarchive: No /SAFESEH linker flag")
     set(WINDOWS_VERSION "WIN7" CACHE INTERNAL "libarchive: Set Windows version to use (Windows only)")