[test] Fix zlib cond when building stand-alone, clean up

Fix the test zlib conditional to use LLVM_ENABLE_ZLIB value when
building stand-alone. The HAVE_LIBZ is not available when performing
a stand-alone build. Since the zlib support is a feature of
the underlying LLVM library, it exports the actual status as the final
value of LLVM_ENABLE_ZLIB in LLVMConfig.

While at it, canonicalize the boolean value into 0/1 and remove unused
CMake definitions (most likely copied from clang).

Differential Revision: https://reviews.llvm.org/D29340

llvm-svn: 294508

lld/test/CMakeLists.txt

@@ -3,13 +3,18 @@ set(LLVM_BINARY_DIR "${LLVM_BINARY_DIR}")
 set(LLVM_BUILD_MODE "%(build_mode)s")
 set(LLVM_TOOLS_DIR "${LLVM_TOOLS_BINARY_DIR}/%(build_config)s")
 set(LLVM_LIBS_DIR "${LLVM_BINARY_DIR}/lib${LLVM_LIBDIR_SUFFIX}/%(build_config)s")
-set(CLANG_SOURCE_DIR "${CMAKE_CURRENT_SOURCE_DIR}/..")
-set(CLANG_BINARY_DIR "${CMAKE_CURRENT_BINARY_DIR}/..")
-if(BUILD_SHARED_LIBS)
-  set(ENABLE_SHARED 1)
-else()
-  set(ENABLE_SHARED 0)
-endif(BUILD_SHARED_LIBS)
+
+if(LLD_BUILT_STANDALONE)
+  # Set HAVE_LIBZ according to recorded LLVM_ENABLE_ZLIB value. This
+  # value is forced to 0 if zlib was not found, so it is fine to use it
+  # instead of HAVE_LIBZ (not recorded).
+  if(LLVM_ENABLE_ZLIB)
+    set(HAVE_LIBZ 1)
+  endif()
+endif()
+
+llvm_canonicalize_cmake_booleans(
+  HAVE_LIBZ)
 
 configure_lit_site_cfg(
   ${CMAKE_CURRENT_SOURCE_DIR}/lit.site.cfg.in

lld/test/lit.cfg

@@ -202,7 +202,7 @@ if execute_external:
     config.available_features.add('shell')
 
 # zlib compression library
-if config.have_zlib == "1":
+if config.have_zlib:
     config.available_features.add("zlib")
 
 # Running on Darwin OS

lld/test/lit.site.cfg.in

@@ -10,7 +10,7 @@ config.lld_libs_dir = "@LLVM_LIBRARY_OUTPUT_INTDIR@"
 config.lld_tools_dir = "@LLVM_RUNTIME_OUTPUT_INTDIR@"
 config.target_triple = "@TARGET_TRIPLE@"
 config.python_executable = "@PYTHON_EXECUTABLE@"
-config.have_zlib = "@HAVE_LIBZ@"
+config.have_zlib = @HAVE_LIBZ@
 
 # Support substitution of the tools and libs dirs with user parameters. This is
 # used when we can't determine the tool dir at configuration time.