It is a bit of a mess.... On the plus side, it no longer rebuilds its 
own gcc for each build.

Unfortunately, the source rpm requires a few software collections for 
i686 (no upstream builds of these) and x86_64.  I've mostly depsolved my 
way through, but I'm fighting building a new rust collection (SCL.org 
has 1.20, but firefox requires at least 1.24).

The i686 build of rust is odd.....

I'm optimistic I'll get x86_64 rust built today.  The i686 rust may 
require something a bit more fancy to get off the ground....

It needs to bundle llvm as that isn't in the release, but the my latest 
attempt for i686 spit out:

###############
error: process didn't exit successfully: 
`/builddir/build/BUILD/rustc-1.27.0-src/build/bootstrap/debug/rustc -vV` 
(exit code: 101)
--- stdout
rustc 1.27.0
binary: rustc
commit-hash: unknown
commit-date: unknown
host: i686-unknown-linux-gnu
release: 1.27.0

--- stderr
error: couldn't load codegen backend 
"/builddir/build/BUILD/rustc-1.27.0-src/build/i686-unknown-linux-gnu/stage1/lib/rustlib/i686-unknown-linux-gnu/codegen-backends/librustc_trans-llvm.so": 
"/builddir/build/BUILD/rustc-1.27.0-src/build/i686-unknown-linux-gnu/stage1/lib/rustlib/i686-unknown-linux-gnu/codegen-backends/librustc_trans-llvm.so: 
undefined symbol: LLVMGetNextGlobal"


command did not execute successfully: 
"/opt/rh/rust-toolset-7/root/usr/bin/cargo" "build" "--target" 
"i686-unknown-linux-gnu" "-j" "8" "--release" "--frozen" "--features" 
"panic-unwind backtrace" "--manifest-path" 
"/builddir/build/BUILD/rustc-1.27.0-src/src/libstd/Cargo.toml" 
"--message-format" "json"
expected success, got: exit code: 101
thread 'main' panicked at 'cargo must succeed', bootstrap/compile.rs:1091:9
note: Run with `RUST_BACKTRACE=1` for a backtrace.
failed to run: 
/builddir/build/BUILD/rustc-1.27.0-src/build/bootstrap/debug/bootstrap build
Build completed unsuccessfully in 1:54:27
error: Bad exit status from /var/tmp/rpm-tmp.T8AHtW (%build)


RPM build errors:
     Bad exit status from /var/tmp/rpm-tmp.T8AHtW (%build)
[mockbuild@sl7 SPECS]$ file 
/builddir/build/BUILD/rustc-1.27.0-src/build/i686-unknown-linux-gnu/stage1/lib/rustlib/i686-unknown-linux-gnu/codegen-backends/librustc_trans-llvm.so
/builddir/build/BUILD/rustc-1.27.0-src/build/i686-unknown-linux-gnu/stage1/lib/rustlib/i686-unknown-linux-gnu/codegen-backends/librustc_trans-llvm.so: 
ELF 32-bit LSB shared object, Intel 80386, version 1 (SYSV), dynamically 
linked, BuildID[sha1]=c67b3d34b93cc42f2874eb574348da6395147035, not stripped
[mockbuild@sl7 SPECS]$ ldd 
/builddir/build/BUILD/rustc-1.27.0-src/build/i686-unknown-linux-gnu/stage1/lib/rustlib/i686-unknown-linux-gnu/codegen-backends/librustc_trans-llvm.so
     linux-gate.so.1 =>  (0x00882000)
     librustc_trans_utils-30e9d0c253f30f1d.so => not found
     librustc_platform_intrinsics-b75d30e2bdf573ed.so => not found
     librustc_incremental-b894116bb98a052c.so => not found
     librustc_allocator-fffeb8de1dc0c3e5.so => not found
     librustc_mir-edefc79926b9cb9e.so => not found
     librustc-9fc202f17e46723c.so => not found
     libsyntax-023bbcd4c216dc4e.so => not found
     librustc_errors-eafc62bd217f40e1.so => not found
     libsyntax_pos-38ba9807067299a4.so => not found
     librustc_target-bfdb8da17c1561e4.so => not found
     librustc_data_structures-1b58628e03065265.so => not found
     librustc_cratesio_shim-221747bb149fd331.so => not found
     libserialize-0da15a818407c7d6.so => not found
     libstd-3ae84a80b42f39c4.so => not found
     libpthread.so.0 => /lib/libpthread.so.0 (0x00c78000)
     libgcc_s.so.1 => /lib/libgcc_s.so.1 (0x005c1000)
     libc.so.6 => /lib/libc.so.6 (0x005dc000)
     /lib/ld-linux.so.2 (0x00a73000)
[mockbuild@sl7 SPECS]$ nm 
/builddir/build/BUILD/rustc-1.27.0-src/build/i686-unknown-linux-gnu/stage1/lib/rustlib/i686-unknown-linux-gnu/codegen-backends/librustc_trans-llvm.so|grep 
LLVM
          U LLVMAddCase
          U LLVMAddClause
          U LLVMAddGlobal
          U LLVMAddIncoming
          U LLVMAddNamedMetadataOperand
          U LLVMAppendBasicBlockInContext
          U LLVMBuildAdd
          U LLVMBuildAlloca
          U LLVMBuildAnd
          U LLVMBuildAShr
          U LLVMBuildAtomicRMW
          U LLVMBuildBitCast
          U LLVMBuildBr
          U LLVMBuildCondBr
          U LLVMBuildExactSDiv
          U LLVMBuildExactUDiv
          U LLVMBuildExtractElement
          U LLVMBuildExtractValue
          U LLVMBuildFAdd
          U LLVMBuildFCmp
          U LLVMBuildFDiv
          U LLVMBuildFMul
          U LLVMBuildFNeg
          U LLVMBuildFPExt
          U LLVMBuildFPToSI
          U LLVMBuildFPToUI
          U LLVMBuildFPTrunc
          U LLVMBuildFRem
          U LLVMBuildFSub
          U LLVMBuildGEP
          U LLVMBuildICmp
          U LLVMBuildInBoundsGEP
          U LLVMBuildInsertElement
          U LLVMBuildInsertValue
          U LLVMBuildIntToPtr
          U LLVMBuildLandingPad
          U LLVMBuildLoad
          U LLVMBuildLShr
          U LLVMBuildMul
          U LLVMBuildNeg
          U LLVMBuildNot
          U LLVMBuildOr
          U LLVMBuildPhi
          U LLVMBuildPointerCast
          U LLVMBuildPtrToInt
          U LLVMBuildResume
          U LLVMBuildRet
          U LLVMBuildRetVoid
          U LLVMBuildSDiv
          U LLVMBuildSelect
          U LLVMBuildSExt
          U LLVMBuildShl
          U LLVMBuildShuffleVector
          U LLVMBuildSIToFP
          U LLVMBuildSRem
          U LLVMBuildStore
          U LLVMBuildStructGEP
          U LLVMBuildSub
          U LLVMBuildSwitch
          U LLVMBuildTrunc
          U LLVMBuildUDiv
          U LLVMBuildUIToFP
          U LLVMBuildUnreachable
          U LLVMBuildURem
          U LLVMBuildXor
          U LLVMBuildZExt
          U LLVMCloneModule
          U LLVMConstArray
          U LLVMConstBitCast
          U LLVMConstExtractValue
          U LLVMConstInBoundsGEP
          U LLVMConstInt
          U LLVMConstIntGetZExtValue
          U LLVMConstIntOfArbitraryPrecision
          U LLVMConstIntToPtr
          U LLVMConstNull
          U LLVMConstPointerCast
          U LLVMConstPtrToInt
          U LLVMConstRealGetDouble
          U LLVMConstStringInContext
          U LLVMConstStructInContext
          U LLVMConstVector
          U LLVMConstZExt
          U LLVMContextDispose
          U LLVMContextSetDiagnosticHandler
          U LLVMCountParamTypes
          U LLVMCreateBuilderInContext
          U LLVMCreateFunctionPassManagerForModule
          U LLVMCreatePassManager
          U LLVMDeleteBasicBlock
          U LLVMDeleteGlobal
          U LLVMDisposeBuilder
          U LLVMDisposeModule
          U LLVMDisposePassManager
          U LLVMDoubleTypeInContext
          U LLVMFloatTypeInContext
          U LLVMFunctionType
          U LLVMGetAlignment
          U LLVMGetBasicBlockParent
          U LLVMGetCurrentDebugLocation
          U LLVMGetDataLayout
          U LLVMGetElementType
          U LLVMGetFirstBasicBlock
          U LLVMGetFirstGlobal
          U LLVMGetInitializer
          U LLVMGetInsertBlock
          U LLVMGetIntTypeWidth
          U LLVMGetMDKindIDInContext
          U LLVMGetModuleContext
          U LLVMGetNamedGlobal
          U LLVMGetNextGlobal
          U LLVMGetParam
          U LLVMGetParamTypes
          U LLVMGetSectionContents
          U LLVMGetSectionSize
          U LLVMGetUndef
          U LLVMGetValueName
          U LLVMGetVectorSize
          U LLVMInitializePasses
          U LLVMInt16TypeInContext
          U LLVMInt1TypeInContext
          U LLVMInt32TypeInContext
          U LLVMInt64TypeInContext
          U LLVMInt8TypeInContext
          U LLVMIntTypeInContext
          U LLVMIsAConstantFP
          U LLVMIsAConstantInt
          U LLVMIsAGlobalVariable
          U LLVMIsDeclaration
          U LLVMIsGlobalConstant
          U LLVMIsSectionIteratorAtEnd
          U LLVMMDNodeInContext
          U LLVMMDStringInContext
          U LLVMModuleCreateWithNameInContext
          U LLVMMoveToNextSection
          U LLVMPassManagerBuilderCreate
          U LLVMPassManagerBuilderDispose
          U LLVMPassManagerBuilderPopulateFunctionPassManager
          U LLVMPassManagerBuilderPopulateLTOPassManager
          U LLVMPassManagerBuilderPopulateModulePassManager
          U LLVMPassManagerBuilderSetDisableUnrollLoops
          U LLVMPassManagerBuilderSetSizeLevel
          U LLVMPassManagerBuilderUseInlinerWithThreshold
          U LLVMPointerType
          U LLVMPositionBuilderAtEnd
          U LLVMReplaceAllUsesWith
          U LLVMRunPassManager
          U LLVMRustAddAlignmentAttr
          U LLVMRustAddAlignmentCallSiteAttr
          U LLVMRustAddAlwaysInlinePass
          U LLVMRustAddAnalysisPasses
          U LLVMRustAddBuilderLibraryInfo
          U LLVMRustAddDereferenceableAttr
          U LLVMRustAddDereferenceableCallSiteAttr
          U LLVMRustAddDereferenceableOrNullAttr
          U LLVMRustAddDereferenceableOrNullCallSiteAttr
          U LLVMRustAddHandler
          U LLVMRustAddLibraryInfo
          U LLVMRustAddModuleFlag
          U LLVMRustAddPass
          U LLVMRustAppendModuleInlineAsm
          U LLVMRustArchiveMemberFree
          U LLVMRustArchiveMemberNew
          U LLVMRustArrayType
          U LLVMRustBuildAtomicCmpXchg
          U LLVMRustBuildAtomicFence
          U LLVMRustBuildAtomicLoad
          U LLVMRustBuildAtomicStore
          U LLVMRustBuildCall
          U LLVMRustBuildCatchPad
          U LLVMRustBuildCatchRet
          U LLVMRustBuildCatchSwitch
          U LLVMRustBuildCleanupPad
          U LLVMRustBuildCleanupRet
          U LLVMRustBuildIntCast
          U LLVMRustBuildInvoke
          U LLVMRustBuildMaxNum
          U LLVMRustBuildMinNum
          U LLVMRustBuildVectorReduceAdd
          U LLVMRustBuildVectorReduceAnd
          U LLVMRustBuildVectorReduceFAdd
          U LLVMRustBuildVectorReduceFMax
          U LLVMRustBuildVectorReduceFMin
          U LLVMRustBuildVectorReduceFMul
          U LLVMRustBuildVectorReduceMax
          U LLVMRustBuildVectorReduceMin
          U LLVMRustBuildVectorReduceMul
          U LLVMRustBuildVectorReduceOr
          U LLVMRustBuildVectorReduceXor
          U LLVMRustConfigurePassManagerBuilder
          U LLVMRustConstInt128Get
          U LLVMRustContextCreate
          U LLVMRustCreateMemoryBufferWithContentsOfFile
          U LLVMRustCreateTargetMachine
          U LLVMRustCreateThinLTOData
          U LLVMRustDebugMetadataVersion
          U LLVMRustDIBuilderCreate
          U LLVMRustDIBuilderCreateArrayType
          U LLVMRustDIBuilderCreateBasicType
          U LLVMRustDIBuilderCreateCompileUnit
          U LLVMRustDIBuilderCreateDebugLocation
          U LLVMRustDIBuilderCreateEnumerationType
          U LLVMRustDIBuilderCreateEnumerator
          U LLVMRustDIBuilderCreateFile
          U LLVMRustDIBuilderCreateFunction
          U LLVMRustDIBuilderCreateLexicalBlock
          U LLVMRustDIBuilderCreateLexicalBlockFile
          U LLVMRustDIBuilderCreateMemberType
          U LLVMRustDIBuilderCreateNameSpace
          U LLVMRustDIBuilderCreateOpDeref
          U LLVMRustDIBuilderCreateOpPlusUconst
          U LLVMRustDIBuilderCreatePointerType
          U LLVMRustDIBuilderCreateStaticVariable
          U LLVMRustDIBuilderCreateStructType
          U LLVMRustDIBuilderCreateSubroutineType
          U LLVMRustDIBuilderCreateTemplateTypeParameter
          U LLVMRustDIBuilderCreateUnionType
          U LLVMRustDIBuilderCreateVariable
          U LLVMRustDIBuilderDispose
          U LLVMRustDIBuilderFinalize
          U LLVMRustDIBuilderGetOrCreateArray
          U LLVMRustDIBuilderGetOrCreateSubrange
          U LLVMRustDIBuilderInsertDeclareAtEnd
          U LLVMRustDICompositeTypeSetTypeArray
          U LLVMRustDisposeTargetMachine
          U LLVMRustFindAndCreatePass
          U LLVMRustFreeThinLTOData
          U LLVMRustGetLastError
          U LLVMRustGetLinkage
          U LLVMRustGetNamedValue
          U LLVMRustGetOrInsertFunction
          U LLVMRustGetOrInsertGlobal
          U LLVMRustGetSectionName
          U LLVMRustGetTypeKind
          U LLVMRustGetVisibility
          U LLVMRustHasFeature
          U LLVMRustInlineAsm
          U LLVMRustLinkerAdd
          U LLVMRustLinkerFree
          U LLVMRustLinkerNew
          U LLVMRustMarkAllFunctionsNounwind
          U LLVMRustMetadataAsValue
          U LLVMRustMetadataTypeInContext
          U LLVMRustModuleBufferCreate
          U LLVMRustModuleBufferFree
          U LLVMRustModuleBufferLen
          U LLVMRustModuleBufferPtr
          U LLVMRustModuleCost
          U LLVMRustParseBitcodeForThinLTO
          U LLVMRustPassKind
          U LLVMRustPassManagerBuilderPopulateThinLTOPassManager
          U LLVMRustPGOAvailable
          U LLVMRustPositionBuilderAtStart
          U LLVMRustPrepareThinLTOImport
          U LLVMRustPrepareThinLTOInternalize
          U LLVMRustPrepareThinLTORename
          U LLVMRustPrepareThinLTOResolveWeak
          U LLVMRustPrintModule
          U LLVMRustPrintPasses
          U LLVMRustPrintPassTimings
          U LLVMRustPrintTargetCPUs
          U LLVMRustPrintTargetFeatures
          U LLVMRustRunFunctionPassManager
          U LLVMRustRunRestrictionPass
          U LLVMRustSetDataLayoutFromTargetMachine
          U LLVMRustSetHasUnsafeAlgebra
          U LLVMRustSetInlineAsmDiagnosticHandler
          U LLVMRustSetLinkage
          U LLVMRustSetLLVMOptions
          U LLVMRustSetModulePIELevel
          U LLVMRustSetNormalizedTarget
          U LLVMRustSetVisibility
          U LLVMRustThinLTOAvailable
          U LLVMRustThinLTOBufferCreate
          U LLVMRustThinLTOBufferFree
          U LLVMRustThinLTOBufferLen
          U LLVMRustThinLTOBufferPtr
          U LLVMRustThinLTOGetDICompileUnit
          U LLVMRustThinLTOPatchDICompileUnit
          U LLVMRustThinLTORemoveAvailableExternally
          U LLVMRustVersionMajor
          U LLVMRustVersionMinor
          U LLVMRustWriteArchive
          U LLVMRustWriteDiagnosticInfoToString
          U LLVMRustWriteOutputFile
          U LLVMRustWriteSMDiagnosticToString
          U LLVMRustWriteTypeToString
          U LLVMRustWriteValueToString
          U LLVMSetAlignment
          U LLVMSetCleanup
          U LLVMSetCurrentDebugLocation
          U LLVMSetDataLayout
          U LLVMSetDLLStorageClass
          U LLVMSetGlobalConstant
          U LLVMSetInitializer
          U LLVMSetInstDebugLocation
          U LLVMSetMetadata
          U LLVMSetModuleInlineAsm
          U LLVMSetPersonalityFn
          U LLVMSetSection
          U LLVMSetTailCall
          U LLVMSetUnnamedAddr
          U LLVMSetValueName
          U LLVMSetVolatile
          U LLVMStartMultithreaded
          U LLVMStructCreateNamed
          U LLVMStructSetBody
          U LLVMStructTypeInContext
          U LLVMTypeOf
          U LLVMVectorType
          U LLVMVoidTypeInContext
          U LLVMWriteBitcodeToFile
          U LLVMX86MMXTypeInContext
          U 
_ZN10rustc_llvm49_$LT$impl$u20$rustc_llvm..ffi..LLVMRustResult$GT$11into_result17h2f29cc40e88747f2E

##############

Pat

On 07/03/2018 10:07 AM, Orion Poplawski wrote:
> Red Hat announced a Firefox security update:
>
> RHSA-2018:2113 Critical: firefox security update - 60.1.0
>
> but I haven't seen it show up in SL (or CentOS for that matter).  Any ETA on
> this?  Thanks.
>

-- 
Pat Riehecky

Fermi National Accelerator Laboratory
www.fnal.gov
www.scientificlinux.org