On Fri, Nov 07, 2014 at 10:16:31PM +0100, Niklas Hambüchen wrote:
Could you detail how cabal relinks for you, e.g. with some cabal -v2 / -v3 output?
The -vN outputs are verbose, so I ended up creating a minimalistic cabal package config that illustrates the problem (attached for reference — see cabalTest.tar.gz). This is how the non-verbose outputs look like for builds on FreeBSD: $ cabal build Package has never been configured. Configuring with default flags. If this fails, please run configure manually. Resolving dependencies... Configuring cabalTest-0.1.0.0... Building cabalTest-0.1.0.0... Preprocessing library cabalTest-0.1.0.0... [1 of 1] Compiling CabalTest ( src/CabalTest.hs, dist/build/CabalTest.o ) In-place registering cabalTest-0.1.0.0... Preprocessing executable 'cabalTest' for cabalTest-0.1.0.0... [1 of 2] Compiling CabalTest ( src/CabalTest.hs, dist/build/cabalTest/cabalTest-tmp/CabalTest.o ) [2 of 2] Compiling Main ( src/cabalTest.hs, dist/build/cabalTest/cabalTest-tmp/Main.o ) Linking dist/build/cabalTest/cabalTest ... $ cabal clean cleaning... $ cabal test Package has never been configured. Configuring with default flags. If this fails, please run configure manually. Resolving dependencies... Configuring cabalTest-0.1.0.0... Building cabalTest-0.1.0.0... Preprocessing library cabalTest-0.1.0.0... [1 of 1] Compiling CabalTest ( src/CabalTest.hs, dist/build/CabalTest.o ) In-place registering cabalTest-0.1.0.0... Preprocessing executable 'cabalTest' for cabalTest-0.1.0.0... [1 of 2] Compiling CabalTest ( src/CabalTest.hs, dist/build/cabalTest/cabalTest-tmp/CabalTest.o ) [2 of 2] Compiling Main ( src/cabalTest.hs, dist/build/cabalTest/cabalTest-tmp/Main.o ) Linking dist/build/cabalTest/cabalTest ... Preprocessing test suite 'CabalTestTest' for cabalTest-0.1.0.0... [1 of 1] Compiling Main ( test/cabalTest.hs, dist/build/CabalTestTest/CabalTestTest-tmp/Main.o ) Linking dist/build/CabalTestTest/CabalTestTest ... Running 1 test suites... Test suite CabalTestTest: RUNNING... Test suite CabalTestTest: PASS Test suite logged to: dist/test/cabalTest-0.1.0.0-CabalTestTest.log 1 of 1 test suites (1 of 1 test cases) passed. and then for rebuilds: $ cabal build Building cabalTest-0.1.0.0... Preprocessing library cabalTest-0.1.0.0... In-place registering cabalTest-0.1.0.0... Preprocessing executable 'cabalTest' for cabalTest-0.1.0.0... Linking dist/build/cabalTest/cabalTest ... Preprocessing test suite 'CabalTestTest' for cabalTest-0.1.0.0... Linking dist/build/CabalTestTest/CabalTestTest ... $ cabal test Building cabalTest-0.1.0.0... Preprocessing library cabalTest-0.1.0.0... In-place registering cabalTest-0.1.0.0... Preprocessing executable 'cabalTest' for cabalTest-0.1.0.0... Linking dist/build/cabalTest/cabalTest ... Preprocessing test suite 'CabalTestTest' for cabalTest-0.1.0.0... Linking dist/build/CabalTestTest/CabalTestTest ... Running 1 test suites... Test suite CabalTestTest: RUNNING... Test suite CabalTestTest: PASS Test suite logged to: dist/test/cabalTest-0.1.0.0-CabalTestTest.log 1 of 1 test suites (1 of 1 test cases) passed. Then I ran the following five commands: cabal clean cabal build cabal test cabal build cabal test three times --- first without, then with -v2 and -v3, on two platforms. The outputs are here: http://trygub.com/download/cabalTest-FreeBSD.out.gz http://trygub.com/download/cabalTest-Linux.out.gz The behaviour is different on Linux and FreeBSD. This is the diff of the non-verbose outputs: 10a11
[1 of 1] Compiling CabalTest ( src/CabalTest.hs, dist/build/CabalTest.p_o ) 14a16,17 [1 of 2] Compiling CabalTest ( src/CabalTest.hs, dist/build/cabalTest/cabalTest-tmp/CabalTest.p_o ) [2 of 2] Compiling Main ( src/cabalTest.hs, dist/build/cabalTest/cabalTest-tmp/Main.p_o ) 25d27 < Linking dist/build/cabalTest/cabalTest ... 27c29 < [1 of 1] Compiling Main ( test/cabalTest.hs, dist/build/CabalTestTest/CabalTestTest-tmp/Main.o )
[1 of 1] Compiling Main ( test/cabalTest.hs, dist/build/CabalTestTest/CabalTestTest-tmp/Main.p_o ) 39d40 < Linking dist/build/cabalTest/cabalTest ... 41d41 < Linking dist/build/CabalTestTest/CabalTestTest ... 47d46 < Linking dist/build/cabalTest/cabalTest ... 49d47 < Linking dist/build/CabalTestTest/CabalTestTest ...
So it seems that what I've observed is FreeBSD-specific — FreeBSD rebuild outputs have extra "Linking ..." messages in them… Many thanks for your help, Semen PS Linux $ cabal --version cabal-install version 1.18.0.2 using version 1.18.1.2 of the Cabal library FreeBSD $ cabal --version cabal-install version 1.20.0.3 using version 1.20.0.2 of the Cabal library -- Семен Тригубенко http://trygub.com