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Remus Rusanu commented on HADOOP-11691: --------------------------------------- Can you please tell me the midl command line you get? For me is this one: {code} E:\HW\tools\OACR\bin\midl.exe /W2 /WX /nologo /char signed /env win32 /Oicf /app_config /out"E:\HW\project\hadoop-common\hadoop-common-project\hadoo p-common\target/winutils/" /h "hadoopwinutilsvc_h.h" /tlb "E:\HW\project\hadoop-common\hadoop-common-project\hadoop-common\target/winutils/libwinutils .tlb" /robust hadoopwinutilsvc.idl {code} which passes in `/env win32` as per the MIDL MSbuild Task spec, but apparently midl.exe wants `/win32` instead. I'm courious in your case what does the midl command line look like. > X86 build of libwinutils is broken > ---------------------------------- > > Key: HADOOP-11691 > URL: https://issues.apache.org/jira/browse/HADOOP-11691 > Project: Hadoop Common > Issue Type: Bug > Components: build, native > Affects Versions: 3.0.0 > Reporter: Remus Rusanu > Assignee: Kiran Kumar M R > Attachments: HADOOP-11691-001.patch, HADOOP-11691-002.patch, > HADOOP-11691-003.patch > > > Hadoop-9922 recently fixed x86 build. After YARN-2190 compiling x86 results > in error: > {code} > (Link target) -> > > E:\HW\project\hadoop-common\hadoop-common-project\hadoop-common\target/winutils/hadoopwinutilsvc_s.obj > : fatal error LNK1112: module machine type 'x64' conflicts with target > machine type 'X86' > [E:\HW\project\hadoop-common\hadoop-common-project\hadoop-common\src\main\winutils\winutils.vcxproj] > {code} -- This message was sent by Atlassian JIRA (v6.3.4#6332)