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Remove clang-specific libxml2 check from CMake

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clang's own CMake setup handles this as of r210308.

The CMAKE_CROSSCOMPILING special-case will no longer be hard-coded. This was
clearly site-specific to someone's local configuration and should be passed in
at configure time if needed with e.g. -DLIBXML2_LIBRARIES=... (the libxml2
target I tried here doesn't even support liblzma so it's *way* off).

llvm-svn: 210309
This commit is contained in:
Alp Toker 2014-06-06 05:08:42 +00:00
parent b2193098c8
commit 28908bcd36
1 changed files with 0 additions and 19 deletions
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19
cmake/config-ix.cmake
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@ -298,25 +298,6 @@ else()
set(ENABLE_PIC 0)
endif()
find_package(LibXml2)
if (LIBXML2_FOUND)
set(CLANG_HAVE_LIBXML 1)
# When cross-compiling, liblzma is not detected as a dependency for libxml2,
# which makes linking c-index-test fail. But for native builds, all libraries
# are installed and checked by CMake before Makefiles are generated and everything
# works according to the plan. However, if a -llzma is added to native builds,
# an additional requirement on the static liblzma.a is required, but will not
# be checked by CMake, breaking native compilation.
# Since this is only pertinent to cross-compilations, and there's no way CMake
# can check for every foreign library on every OS, we add the dep and warn the dev.
if ( CMAKE_CROSSCOMPILING )
if (NOT PC_LIBXML_VERSION VERSION_LESS "2.8.0")
message(STATUS "Adding LZMA as a dep to XML2 for cross-compilation, make sure liblzma.a is available.")
set(LIBXML2_LIBRARIES ${LIBXML2_LIBRARIES} "-llzma")
endif ()
endif ()
endif ()
check_cxx_compiler_flag("-Wno-variadic-macros" SUPPORTS_NO_VARIADIC_MACROS_FLAG)
set(USE_NO_MAYBE_UNINITIALIZED 0)