[cfe-dev] compiler-rt fails to build with the packages are installed on the system

[Sylvestre Ledru]

On 29/10/2013 22:02, Richard Smith wrote:
> On Tue, Oct 29, 2013 at 1:44 AM, Sylvestre Ledru <sylvestre at debian.org
> <mailto:sylvestre at debian.org>> wrote:
>
>     Hello,
>
>     Recently, compiler-rt build started to fail when the package are also
>     installed on the system.
>
>       COMPILE:   clang_linux/full-x86_64/x86_64:
>     /tmp/buildd/llvm-toolchain-snapshot-3.4~svn193538/projects/compiler-rt/lib/addvsi3.c
>     /tmp/buildd/llvm-toolchain-snapshot-3.4~svn193538/build-llvm/Release+Asserts/bin/clang
>     -fPIC -Wall -Werror -O3 -fomit-frame-pointer -m64
>     --sysroot=/tmp/buildd/llvm-toolchain-snapshot-3.4~svn193538/projects/compiler-rt/SDKs/linux
>     -c -o
>     /tmp/buildd/llvm-toolchain-snapshot-3.4~svn193538/build-llvm/tools/clang/runtime/compiler-rt/clang_linux/full-x86_64/x86_64/SubDir.lib/addvsi3.o
>     /tmp/buildd/llvm-toolchain-snapshot-3.4~svn193538/projects/compiler-rt/lib/addvsi3.c
>     /usr/include/clang/3.4/include/module.map:1:8: error:
>     /usr/include/clang/3.4/include/module.map:1:8: error: redefinition of
>     module '_Builtin_intrinsics'
>     redefinition of module '_Builtin_intrinsics'
>     module _Builtin_intrinsics [system] {module _Builtin_intrinsics
>     [system] {
>            ^
>     /tmp/buildd/llvm-toolchain-snapshot-3.4~svn193538/build-llvm/Release+Asserts/bin/../lib/clang/3.4/include/module.map:1:8:
>     note: previously defined here
>     module _Builtin_intrinsics [system] {
>            ^
>
>     Any ideas on how to fix that ?
>
>
> Any particular invocation of Clang should only find the built-in
> headers corresponding to that binary; it should look in $(dirname
> $argv0)/../lib/clang/3.4/include for those. Can you run the build
> command with -v and try to figure out why the include path contains
> both /usr/include/clang/3.4/include and
> .../bin/../lib/clang/3.4/include? (Which of these corresponds to the
> clang binary being used, and why is the other one on the include path?)
The Debian clang package is patched to search also in
/usr/include/clang/3.4/include

Anyway, module.map should not included twice.

Thanks,
Sylvestre
Full log:
Selected GCC installation:
 "/pro/pkg-llvm/llvm-toolchain/branches/llvm-toolchain-snapshot-3.4~svn193603/build-llvm/Release/bin/clang"
-cc1 -triple x86_64-pc-linux-gnu -emit-obj -disable-free
-disable-llvm-verifier -main-file-name absvdi2.c -mrelocation-model pic
-pic-level 2 -fmath-errno -masm-verbose -mconstructor-aliases
-munwind-tables -target-cpu x86-64 -target-linker-version
2.23.90.20130927 -momit-leaf-frame-pointer -v -coverage-file
/pro/pkg-llvm/llvm-toolchain/branches/llvm-toolchain-snapshot-3.4~svn193603/build-llvm/tools/clang/runtime/compiler-rt/clang_linux/full-x86_64/x86_64/SubDir.lib/absvdi2.o
-resource-dir
/pro/pkg-llvm/llvm-toolchain/branches/llvm-toolchain-snapshot-3.4~svn193603/build-llvm/Release/bin/../lib/clang/3.4
-isysroot
/pro/pkg-llvm/llvm-toolchain/branches/llvm-toolchain-snapshot-3.4~svn193603/projects/compiler-rt/SDKs/linux
-internal-isystem
/pro/pkg-llvm/llvm-toolchain/branches/llvm-toolchain-snapshot-3.4~svn193603/projects/compiler-rt/SDKs/linux/usr/local/include
-internal-isystem
/pro/pkg-llvm/llvm-toolchain/branches/llvm-toolchain-snapshot-3.4~svn193603/build-llvm/Release/bin/../lib/clang/3.4/include
-internal-isystem /usr/include/clang/3.4/include/
-internal-externc-isystem
/pro/pkg-llvm/llvm-toolchain/branches/llvm-toolchain-snapshot-3.4~svn193603/projects/compiler-rt/SDKs/linux/usr/include/x86_64-linux-gnu
-internal-externc-isystem
/pro/pkg-llvm/llvm-toolchain/branches/llvm-toolchain-snapshot-3.4~svn193603/projects/compiler-rt/SDKs/linux/usr/include/x86_64-linux-gnu
-internal-externc-isystem
/pro/pkg-llvm/llvm-toolchain/branches/llvm-toolchain-snapshot-3.4~svn193603/projects/compiler-rt/SDKs/linux/usr/include
-O3 -Wall -Werror -fdebug-compilation-dir
/pro/pkg-llvm/llvm-toolchain/branches/llvm-toolchain-snapshot-3.4~svn193603/build-llvm/tools/clang/runtime/compiler-rt
-ferror-limit 19 -fmessage-length 0 -mstackrealign -fobjc-runtime=gcc
-fdiagnostics-show-option -vectorize-loops -vectorize-slp -o
/pro/pkg-llvm/llvm-toolchain/branches/llvm-toolchain-snapshot-3.4~svn193603/build-llvm/tools/clang/runtime/compiler-rt/clang_linux/full-x86_64/x86_64/SubDir.lib/absvdi2.o
-x c
/pro/pkg-llvm/llvm-toolchain/branches/llvm-toolchain-snapshot-3.4~svn193603/projects/compiler-rt/lib/absvdi2.c
clang -cc1 version 3.4 based upon LLVM 3.4 default target
x86_64-pc-linux-gnu
ignoring nonexistent directory
"/pro/pkg-llvm/llvm-toolchain/branches/llvm-toolchain-snapshot-3.4~svn193603/projects/compiler-rt/SDKs/linux/usr/local/include"
ignoring nonexistent directory
"/pro/pkg-llvm/llvm-toolchain/branches/llvm-toolchain-snapshot-3.4~svn193603/projects/compiler-rt/SDKs/linux/usr/include/x86_64-linux-gnu"
ignoring nonexistent directory
"/pro/pkg-llvm/llvm-toolchain/branches/llvm-toolchain-snapshot-3.4~svn193603/projects/compiler-rt/SDKs/linux/usr/include/x86_64-linux-gnu"
#include "..." search starts here:
#include <...> search starts here:
 /pro/pkg-llvm/llvm-toolchain/branches/llvm-toolchain-snapshot-3.4~svn193603/build-llvm/Release/bin/../lib/clang/3.4/include
 /usr/include/clang/3.4/include
 /pro/pkg-llvm/llvm-toolchain/branches/llvm-toolchain-snapshot-3.4~svn193603/projects/compiler-rt/SDKs/linux/usr/include
End of search list.
/usr/include/clang/3.4/include/module.map:1:8: error: redefinition of
module '_Builtin_intrinsics'
module _Builtin_intrinsics [system] {
       ^
/pro/pkg-llvm/llvm-toolchain/branches/llvm-toolchain-snapshot-3.4~svn193603/build-llvm/Release/bin/../lib/clang/3.4/include/module.map:1:8:
note: previously defined here
module _Builtin_intrinsics [system] {
       ^
1 error generated.

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