[LLVMdev] llvm build errors on windows/mingw32

[Dimitry Andric]

On 2009-10-02 21:37, Benjamin Kramer wrote:
>> I had a close look at the link line, and -lpsapi is specified before  
>> -lLLVMSystem (which is giving the error).
>> When I put -lpsapi after -lLLVMSystem, it links ok.
> 
> I commited a fix for this problem and a modified version of Jay's  
> patch here:
> http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20090928/088265.html
> 
> I hope MingW builds work again now :)

Now the problem comes from another side, as GNU ld seems rather picky
about the library order:

$ g++ -I/d/Home/Dim/Src/llvm/include -I/d/Home/Dim/Src/llvm/obj/include -I/d/Home/Dim/Src/llvm/obj/unittests/Transforms/Utils -I/d/Home/Dim/Src/llvm/unittests/Transforms/Utils  -D_DEBUG -D_GNU_SOURCE -D__STDC_LIMIT_MACROS -D__STDC_CONSTANT_MACROS -I/d/Home/Dim/Src/llvm/utils/unittest/googletest/include/ -Wno-variadic-macros -g -fno-exceptions -Woverloaded-virtual      -pedantic -Wno-long-long -Wall -W -Wno-unused-parameter -Wwrite-strings  -g -L/d/Home/Dim/Src/llvm/obj/Debug/lib -L/d/Home/Dim/Src/llvm/obj/Debug/lib  -o Debug/UtilsTests.exe  /d/Home/Dim/Src/llvm/obj/unittests/Transforms/Utils/Debug/Cloning.o -lLLVMTransformUtils -lLLVMipa -lLLVMAnalysis -lLLVMTarget -lLLVMMC -lLLVMCore -lLLVMSupport -lLLVMSystem   -lpthread -lpsapi -limagehlp -lm  -lGoogleTest -lUnitTestMain
d:/Home/Dim/Src/llvm/obj/Debug/lib/libGoogleTest.a(gtest.o):gtest.cc:(.text$_ZN4llvm14raw_os_ostreamC1ERSo[llvm::raw_os_ostream::raw_os_ostream(std::basic_ostre
am<char, std::char_traits<char> >&)]+0x1e): undefined reference to `vtable for llvm::raw_os_ostream'
d:/Home/Dim/Src/llvm/obj/Debug/lib/libGoogleTest.a(gtest.o):gtest.cc:(.text$_ZN4llvm23convertible_fwd_ostreamD1Ev[llvm::convertible_fwd_ostream::~convertible_fw
d_ostream()]+0x2b): undefined reference to `llvm::raw_os_ostream::~raw_os_ostream()'
d:/Home/Dim/Src/llvm/obj/Debug/lib/libGoogleTest.a(gtest.o):gtest.cc:(.text$_ZN4llvm23convertible_fwd_ostreamD0Ev[llvm::convertible_fwd_ostream::~convertible_fw
d_ostream()]+0x2b): undefined reference to `llvm::raw_os_ostream::~raw_os_ostream()'
collect2: ld returned 1 exit status

E.g. now libGoogletest.a requires some symbols from libLLVMSupport.a,
and it has been moved to the end of the linking command line.

When I make the order:

-lGoogleTest
-lUnitTestMain
-lLLVMTransformUtils
-lLLVMipa
-lLLVMAnalysis
-lLLVMTarget
-lLLVMMC
-lLLVMCore
-lLLVMSupport
-lLLVMSystem  
-lpthread
-lpsapi
-limagehlp
-lm 

it links okay.  I have tested a similar fix as r83252, which I saw you
just committed, and that seems to work.  At least, it's far into the
examples directory by now, without problems...