[flang-commits] [flang] [mlir] [mlir][cmake] Do not export MLIR_MAIN_SRC_DIR and MLIR_INCLUDE_DIR (PR #125842)

[LLVM Continuous Integration via flang-commits]

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `ppc64-flang-aix` running on `ppc64-flang-aix-test` while building `flang,mlir` at step 5 "build-unified-tree".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/201/builds/2906

<details>
<summary>Here is the relevant piece of the build log for the reference</summary>

```
Step 5 (build-unified-tree) failure: build (failure)
...
8719.101 [236/10/7768] Building CXX object tools/obj2yaml/CMakeFiles/obj2yaml.dir/obj2yaml.cpp.o
8722.602 [235/10/7769] Building CXX object tools/obj2yaml/CMakeFiles/obj2yaml.dir/coff2yaml.cpp.o
8722.722 [234/10/7770] Building CXX object tools/obj2yaml/CMakeFiles/obj2yaml.dir/minidump2yaml.cpp.o
8723.166 [233/10/7771] Building CXX object tools/obj2yaml/CMakeFiles/obj2yaml.dir/dxcontainer2yaml.cpp.o
8723.431 [232/10/7772] Building CXX object tools/llvm-xray/CMakeFiles/llvm-xray.dir/xray-stacks.cpp.o
8723.796 [231/10/7773] Building CXX object tools/obj2yaml/CMakeFiles/obj2yaml.dir/offload2yaml.cpp.o
8724.084 [230/10/7774] Building CXX object tools/llvm-xray/CMakeFiles/llvm-xray.dir/xray-account.cpp.o
8724.875 [229/10/7775] Linking CXX executable bin/llvm-xray
8725.082 [228/10/7776] Building CXX object tools/remarks-shlib/CMakeFiles/Remarks.dir/libremarks.cpp.o
8725.196 [227/10/7777] Linking CXX shared library lib/libRemarks.a
FAILED: lib/libRemarks.a 
: && "/opt/freeware/share/cmake-3.30/Modules/Platform/AIX/ExportImportList" -o tools/remarks-shlib/CMakeFiles/Remarks.dir/exports.exp -c /home/llvm/llvm-external-buildbots/clang.17.0.2/bin/clang++  tools/remarks-shlib/CMakeFiles/Remarks.dir/libremarks.cpp.o && /home/llvm/llvm-external-buildbots/clang.17.0.2/bin/clang++ -fPIC -Wl,-bE:tools/remarks-shlib/CMakeFiles/Remarks.dir/exports.exp -mcmodel=large -fPIC -Werror=date-time -Werror=unguarded-availability-new -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wmissing-field-initializers -pedantic -Wno-long-long -Wc++98-compat-extra-semi -Wimplicit-fallthrough -Wcovered-switch-default -Wno-noexcept-type -Wnon-virtual-dtor -Wdelete-non-virtual-dtor -Wsuggest-override -Wstring-conversion -Wmisleading-indentation -Wctad-maybe-unsupported -fdiagnostics-color -ffunction-sections -fdata-sections -O3 -DNDEBUG  -Wl,-bglink=large -shared   -Wl,-bE:/home/llvm/llvm-external-buildbots/workers/ppc64-flang-aix-test/ppc64-flang-aix-build/llvm-project/llvm/tools/remarks-shlib/Remarks.exports -shared -Wl,-bnoipath -o libRemarks.so.21.0git tools/remarks-shlib/CMakeFiles/Remarks.dir/libremarks.cpp.o  -Wl,-blibpath:"\$ORIGIN/../lib:/usr/lib:/lib"  lib/libLLVMRemarks.a  lib/libLLVMBitstreamReader.a  lib/libLLVMSupport.a  -lrt  -lld  -lpthreads  -lm  lib/libLLVMDemangle.a && /home/llvm/llvm-external-buildbots/clang.17.0.2/bin/llvm-ar -X32_64 rc lib/libRemarks.a libRemarks.so.21.0git && rm -f libRemarks.so.21.0git && :
/bin/sh: /opt/freeware/share/cmake-3.30/Modules/Platform/AIX/ExportImportList:  not found
8725.919 [227/9/7778] Building CXX object tools/obj2yaml/CMakeFiles/obj2yaml.dir/dwarf2yaml.cpp.o
8727.422 [227/8/7779] Building CXX object tools/reduce-chunk-list/CMakeFiles/reduce-chunk-list.dir/reduce-chunk-list.cpp.o
8728.975 [227/7/7780] Building CXX object tools/obj2yaml/CMakeFiles/obj2yaml.dir/xcoff2yaml.cpp.o
8729.911 [227/6/7781] Building CXX object tools/llvm-readobj/CMakeFiles/llvm-readobj.dir/ELFDumper.cpp.o
8731.914 [227/5/7782] Building CXX object tools/obj2yaml/CMakeFiles/obj2yaml.dir/wasm2yaml.cpp.o
8735.950 [227/4/7783] Building CXX object tools/obj2yaml/CMakeFiles/obj2yaml.dir/macho2yaml.cpp.o
8742.540 [227/3/7784] Building CXX object tools/opt/CMakeFiles/LLVMOptDriver.dir/optdriver.cpp.o
8746.498 [227/2/7785] Building CXX object tools/opt/CMakeFiles/LLVMOptDriver.dir/NewPMDriver.cpp.o
8786.340 [227/1/7786] Building CXX object tools/obj2yaml/CMakeFiles/obj2yaml.dir/elf2yaml.cpp.o
ninja: build stopped: subcommand failed.

```

</details>

https://github.com/llvm/llvm-project/pull/125842