ghc-prim package-data.mk failed

[Simon Peyton Jones]

This has started happening when I do 'sh validate -no-clean'

"inplace/bin/ghc-cabal" configure libraries/ghc-prim dist-install --with-ghc="/home/simonpj/5builds/HEAD-5/inplace/bin/ghc-stage1" --with-ghc-pkg="/home/simonpj/5builds/HEAD-5/inplace/bin/ghc-pkg"  --disable-library-for-ghci --enable-library-vanilla --enable-library-for-ghci --disable-library-profiling --enable-shared --with-hscolour="/home/simonpj/.cabal/bin/HsColour" --configure-option=CFLAGS="-Wall -fno-stack-protector    -Werror=unused-but-set-variable -Wno-error=inline" --configure-option=LDFLAGS="  " --configure-option=CPPFLAGS="   " --gcc-options="-Wall -fno-stack-protector    -Werror=unused-but-set-variable -Wno-error=inline   " --with-gcc="gcc" --with-ld="ld.gold" --with-ar="ar" --with-alex="/home/simonpj/.cabal/bin/alex" --with-happy="/home/simonpj/.cabal/bin/happy"

Configuring ghc-prim-0.5.3...

configure: WARNING: unrecognized options: --with-compiler

checking for gcc... /usr/bin/gcc

checking whether the C compiler works... yes

checking for C compiler default output file name... a.out

checking for suffix of executables...

checking whether we are cross compiling... no

checking for suffix of object files... o

checking whether we are using the GNU C compiler... yes

checking whether /usr/bin/gcc accepts -g... yes

checking for /usr/bin/gcc option to accept ISO C89... none needed

checking whether GCC supports __atomic_ builtins... no

configure: creating ./config.status

config.status: error: cannot find input file: `ghc-prim.buildinfo.in'

libraries/ghc-prim/ghc.mk:4: recipe for target 'libraries/ghc-prim/dist-install/package-data.mk' failed

make[1]: *** [libraries/ghc-prim/dist-install/package-data.mk] Error 1

Makefile:122: recipe for target 'all' failed

make: *** [all] Error 2


I think it is fixed by saying 'sh validate' (i.e. start from scratch).  But that is slow.
I'm not 100% certain about the circumstances under which it happens, but can anyone help me diagnose what is going on when it does?
Thanks
SImon


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