Universal config.h for snappy.

[apitrace] / thirdparty / snappy / CMakeLists.txt

diff --git a/thirdparty/snappy/CMakeLists.txt b/thirdparty/snappy/CMakeLists.txt
index bcacda7514a8acf632548d73fcff59e01d78d161..87873d9f593b2ea0fcd4d44a24fc61f81fa25eae 100644 (file)
--- a/thirdparty/snappy/CMakeLists.txt
+++ b/thirdparty/snappy/CMakeLists.txt
@@ -1,29 +1,3 @@
-# We only do the subset of the snappy autoconf that actually affect the library
-# (as most of them are for the tests which we don't build.)
-
-include (CheckIncludeFileCXX)
-include (CheckCXXSourceCompiles)
-include (TestBigEndian)
-
-check_include_file_cxx (sys/mman.h HAVE_SYS_MMAN_H)
-check_include_file_cxx (sys/byteorder.h HAVE_SYS_BYTEORDER_H)
-check_include_file_cxx (sys/endian.h HAVE_SYS_ENDIAN_H)
-check_include_file_cxx (byteswap.h HAVE_BYTESWAP_H)
-
-check_cxx_source_compiles (
-    "main() { return __builtin_expect(1, 1) ? 1 : 0; }"
-    HAVE_BUILTIN_EXPECT
-)
-
-check_cxx_source_compiles (
-    "main() { return (__builtin_ctzll(0x100000000LL) == 32) ? 1 : 0; }"
-    HAVE_BUILTIN_CTZ
-)
-
-test_big_endian (WORDS_BIGENDIAN)
-
-configure_file (config.h.in config.h)
-
 add_definitions (-DHAVE_CONFIG_H)
 
 # Adjust warnings
@@ -31,9 +5,6 @@ if (CMAKE_COMPILER_IS_GNUCXX)
     add_definitions (-Wno-unused-function)
 endif ()
 
-
-include_directories (${CMAKE_CURRENT_BINARY_DIR})
-
 add_library (snappy_bundled STATIC
     snappy.cc
     snappy-sinksource.cc
@@ -44,12 +15,3 @@ add_library (snappy_bundled STATIC
 set_target_properties (snappy_bundled PROPERTIES
     COMPILE_FLAGS "${CMAKE_SHARED_LIBRARY_CXX_FLAGS}"
 )
-
-# If we're doing an out of source build remove any config.h from the source tree.
-if (NOT CMAKE_CURRENT_SOURCE_DIR STREQUAL CMAKE_CURRENT_BINARY_DIR)
-    add_custom_command (
-        TARGET snappy_bundled
-        PRE_BUILD
-        COMMAND ${CMAKE_COMMAND} -E remove -f ${CMAKE_CURRENT_SOURCE_DIR}/config.h
-    )
-endif()