[LLVMdev] Build failure with libcxx

[İsmail Dönmez]

Hi,

Recently my libcxx enabled llvm/clang builds has started to fail in stage2.
I must admit I am stomped because I cannot make sense of the error:

[  723s] FAILED: /home/abuild/rpmbuild/BUILD/llvm/stage1/bin/clang++
-DLLVMSupport_EXPORTS -DNDEBUG -D_GNU_SOURCE -D__STDC_CONSTANT_MACROS
-D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -stdlib=libc++ -fPIC
-fvisibility-inlines-hidden -Wall -W -Wno-unused-parameter -Wwrite-strings
-Wmissing-field-initializers -pedantic -Wno-long-long
-Wcovered-switch-default -Wnon-virtual-dtor -std=c++11 -fcolor-diagnostics
-ffunction-sections -fdata-sections -O2 -g -DNDEBUG -fPIC -Ilib/Support
-I../lib/Support -Iinclude -I../include    -fno-exceptions -MMD -MT
lib/Support/CMakeFiles/LLVMSupport.dir/Allocator.cpp.o -MF
lib/Support/CMakeFiles/LLVMSupport.dir/Allocator.cpp.o.d -o
lib/Support/CMakeFiles/LLVMSupport.dir/Allocator.cpp.o -c
../lib/Support/Allocator.cpp
[  723s] In file included from ../lib/Support/Allocator.cpp:14:
[  723s] ../include/llvm/Support/Allocator.h:421:65: error: 'S' does not
refer to a value
[  723s]       Size, std::min((size_t)llvm::NextPowerOf2(Size), offsetof(S,
x)));
[  723s]                                                                 ^
[  723s] ../include/llvm/Support/Allocator.h:411:10: note: declared here
[  723s]   struct S {
[  723s]          ^
[  723s] 1 error generated.

clang r207403 is OK but trunk fails. Any ideas for debugging this would be
appreciated.

Thanks!
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