#8134: ghc enters a loop while building 7.6.3 for powerpc64 platform. -------------------------------------+----------------------------- Reporter: k0da | Owner: Type: bug | Status: new Priority: normal | Milestone: 7.6.3 Component: Compiler | Version: 7.6.3 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: powerpc64 Type of failure: None/Unknown | Difficulty: Unknown Test Case: | Blocked By: Blocking: | Related Tickets: -------------------------------------+----------------------------- Comment (by gustavold): I've built 7.6.3 with -debug and used that to rebuild 7.6.3 to reproduce this issue. I did get stuck as expected. Then passing -v4, ghc gets more verbose but I didn't find anything obvious in the output: {{{ Running phase HsPp HsSrcFile Running phase Unlit HsSrcFile *** Literate pre-processor: '/usr/local/lib/ghc-7.6.3/unlit' '-h' 'compiler/rename/RnSource.lhs' 'compiler/rename/RnSource.lhs' '/tmp/ghc42706_0/ghc42706_103.lpp' Running phase Cpp HsSrcFile *** C pre-processor: '/usr/bin/gcc' '-E' '-undef' '-traditional' '-fno-stack-protector' '-Wl ,--hash-size=31' '-Wl,--reduce-memory-overheads' '-v' '-I' 'compiler/stage1/build' '-I' 'compiler/stage1/build' '-I' 'compiler/stage1/build/autogen' '-I' 'compiler/stage1' '-I' 'compiler/.' '-I' 'compiler/parser' '-I' 'compiler/utils' '-I' '/usr/local/lib/ghc-7.6.3/process-1.1.0.2/include' '-I' '/usr/local/lib/ghc-7.6.3/old-time-1.1.0.1/include' '-I' '/usr/local/lib/ghc-7.6.3/directory-1.2.0.1/include' '-I' '/usr/local/lib/ghc-7.6.3/unix-2.6.0.1/include' '-I' '/usr/local/lib/ghc-7.6.3/bytestring-0.10.0.2/include' '-I' '/usr/local/lib/ghc-7.6.3/time-1.4.0.1/include' '-I' '/usr/local/lib/ghc-7.6.3/base-4.6.0.1/include' '-I' '/usr/local/lib/ghc-7.6.3/include' '-D__GLASGOW_HASKELL__=706' '-Dlinux_BUILD_OS=1' '-Dpowerpc64_BUILD_ARCH=1' '-Dlinux_HOST_OS=1' '-Dpowerpc64_HOST_ARCH=1' '-include' 'compiler/stage1/build/autogen/cabal_macros.h' '-DNO_REGS' '-DSTAGE=1' '-x' 'c' '/tmp/ghc42706_0/ghc42706_103.lpp' '-o' '/tmp/ghc42706_0/ghc42706_209.hscpp' }}} Any hints on debug parameters I could pass to ghc to help tracking this down. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/8134#comment:10 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler