- Glasgow-haskell-users

X11-1.4.2 on 64bit Fedora 8 fails to build
by Christian Höner zu Siederdissen 01 Jul '08

01 Jul '08

Hi, I'm trying to get X11-1.4.1 compiled on a 64 bit x86 Fedora 8 system. runhaskell Setup.hs configure --prefix $HOME/ghc has no problems but runhaskell Setup.hs build produces: Preprocessing library X11-1.4.2... /usr/bin/ld: skipping incompatible /usr/lib/libXinerama.so when searching for -lXinerama /usr/bin/ld: cannot find -lXinerama collect2: ld returned 1 exit status linking dist/build/Graphics/X11/Types_hsc_make.o failed command was: /scr/airline/choener/ghc-6.8.3/bin/ghc -optl-lXinerama \ -optl-lXext -optl-lX11 -optl-L/usr/lib64 \ dist/build/Graphics/X11/Types_hsc_make.o -o \ dist/build/Graphics/X11/Types_hsc_make Trying something like runhaskell Setup.hs configure --ld-options="-nostdlib -L/usr/lib64" runhaskell Setup.hs build --ld-options="-nostdlib -L/usr/lib64" does not change the fact that ld looks in the wrong place for libXinerama. It looks in /usr/lib, but should look in /usr/lib64. Btw. I don't have root on the machine. Thanks, Christian Höner zu Siederdissen

1 0

Error building GHC 6.8.3 with MinGW 4.2.1-2 dw2
by leledumbo 30 Jun '08

30 Jun '08

I try to build a lite version (e.g. no extra libs) of GHC 6.8.3, I'm using MinGW GCC 4.2.1-2 with dwarf-2 exception and pre-compiled GHC 6.8.3. Here's my configure: sh configure --prefix=/c/ghc-new CFLAGS='-s -O2' LDFLAGS='-s -O2' --with-gmp-includes=/usr/local/gmp/include --with-gmp-libraries=/usr/local/gmp/lib And my make: make bootstrap3 But in the middle, I got this: Preprocessing library hpc-0.5.0.1... In file included from D:/Sources/ghc/ghc-6.8.3-lite/includes/Stg.h:183, from D:/Sources/ghc/ghc-6.8.3-lite/includes/Rts.h:19, from Trace\Hpc\Reflect.hsc:18: D:/Sources/ghc/ghc-6.8.3-lite/includes/Regs.h:28:17: error: gmp.h: No such file or directory In file included from D:/Sources/ghc/ghc-6.8.3-lite/includes/Stg.h:183, from D:/Sources/ghc/ghc-6.8.3-lite/includes/Rts.h:19, from Trace\Hpc\Reflect.hsc:18: D:/Sources/ghc/ghc-6.8.3-lite/includes/Regs.h:121: error: expected specifier-qua lifier-list before 'MP_INT' In file included from Trace\Hpc\Reflect.hsc:18: D:/Sources/ghc/ghc-6.8.3-lite/includes/Rts.h:203: error: expected ')' before '*' token D:/Sources/ghc/ghc-6.8.3-lite/includes/Rts.h:204: error: expected ')' before '*' token compiling dist\build\Trace\Hpc\Reflect_hsc_make.c failed command was: gcc -c -mno-cygwin -D__GLASGOW_HASKELL__=608 -ID:/Sources/ghc/ghc-6 .8.3-lite/includes -ID:/Sources/ghc/ghc-6.8.3-lite/gmp/gmpbuild -I/usr/local/gmp /include -D__GLASGOW_HASKELL__=608 dist\build\Trace\Hpc\Reflect_hsc_make.c -o di st\build\Trace\Hpc\Reflect_hsc_make.o make[2]: Entering directory `/d/Sources/ghc/ghc-6.8.3-lite/libraries/hpc' make[2]: *** No targets specified and no makefile found. Stop. make[2]: Leaving directory `/d/Sources/ghc/ghc-6.8.3-lite/libraries/hpc' make[1]: *** [make.library.hpc] Error 2 make[1]: Leaving directory `/d/Sources/ghc/ghc-6.8.3-lite/libraries' make: *** [stage1] Error 2 As you can see above, I have gmp installed under /usr/local/gmp. However, this is not the gmp that comes with GHC (version 4.2.1, mine is 4.2.2). PS: I must comment these two lines in IOManager.h: 12: extern void* GetCurrentFiber ( void ); 13: extern void* GetFiberData ( void ); or an error about "static declaration follows non-static declaration" will come up. -- View this message in context: http://www.nabble.com/Error-building-GHC-6.8.3-with-MinGW-4.2.1-2-dw2-tp181… Sent from the Haskell - Glasgow-haskell-users mailing list archive at Nabble.com.

1 0

Implicit Function Arguments
by Tyson Whitehead 30 Jun '08

30 Jun '08

What do people think about implicit function argument? That is, named function arguments, possibly tagged with something special like a tilde, whereby scoped variables of the same name are automatically passed. The idea is to avoid the pain of a lots of pass through parameters while make it easy to modify one or two of them. For example, in f1 :: ~state::State -> Input -> Output f1 input = f2 input f2 :: ~state::State -> Input -> Output f2 input = <whatever> we don't have to specify ~state for f2 because it picks it up automatically from ~state being in scope from f1. To change it, however, we just do f1 :: ~state::State -> Input -> Output f1 input = f2 input where ~state = <whatever> The advantage over wrapping it in a monad being: 1) it is evident what is being passed around behind the scenes from the type signatures, and 2) we avoiding the lifting issue (to compose multiple implicit arguments we just specifying them -- assuming their are no name clashes). Cheers! -Tyson

5 5

Illegal instruction with ghc-6.8.3 distribution (OS X Tiger)
by Judah Jacobson 27 Jun '08

27 Jun '08

Hi, I recently installed ghc-6.8.3 on an iBook running OS X 10.4.11 (PowerPC G4), using the following distribution: http://www.haskell.org/ghc/dist/6.8.3/maeder/ghc-6.8.3-powerpc-apple-darwin… Running the following program, compiled with -O, causes an illegal instruction error: =========== module Main where main = print foo foo :: Integer foo = gcd 400 85 ================== Running through gdb produced the following output: Program received signal EXC_BAD_INSTRUCTION, Illegal instruction/operand. 0x00046b50 in __gmpn_gcd_1 () (gdb) where #0 0x00046b50 in __gmpn_gcd_1 () #1 0x00028cb0 in gcdIntzh_fast () #2 0x0002be34 in scheduleWaitThread () #3 0x0001fdb8 in real_main () #4 0x0001fec0 in main () (gdb) quit Christian, did you compile this distribution on a G5 PowerPC? GMP is statically linked into this distribution, so if it's using any processor-specific instructions I could see that tripping up my G4. If you or someone else can confirm that this works on a G5, then we should probably just update the downloads page with that requirement. Thanks, -Judah

3 3

possible OI extension
by Serge D. Mechveliani 27 Jun '08

27 Jun '08

Hello, people, This is about possible extension in treating of overlapping instances. Here is a simple example. ------------------------------------------ import qualified Data.Set as Set (empty, member, insert) import List (nub) class Nub a where myNub :: a -> a instance Eq a => Nub [a] where myNub = nub instance Ord a => Nub [a] where myNub xs = nub' Set.empty xs where nub' _ [] = [] nub' set (x: xs) = if Set.member x set then nub' set xs else x: (nub' (Set.insert x set) xs) ------------------------------------------ The idea is that it is good to replace nub of the Haskell-98 library with myNub. Because: for Eq a, myNub costs O(n^2), for Ord a, myNub costs O(n*(log n)), and it is good to denote this operation with the same name. Compiling this by GHC under -fglasgow-exts -fallow-overlapping-instances -fallow-undecidable-instances yields the error report: Duplicate instance declarations: instance [overlap ok] (Eq a) => Nub [a] -- Defined at IOverlap2.hs:8:0-43 instance [overlap ok] (Ord a) => Nub [a] -- Defined at IOverlap2.hs:(9,0)-(15,71) Probably, as the context of Ord a is stronger than Eq a, then on the instance overlap, the compiler could choose the instance with the stronger context. Can there be a reasonably implemented extension of this kind? Thank you in advance for your comments, ----------------- Serge Mechveliani mechvel(a)botik.ru

2 1

ghc-6.8.3 binary dist problem
by Benjamin Franksen 27 Jun '08

27 Jun '08

When I try to ./configure, I get this error: aragon: .../i386-unknown-linux/ghc-6.8.3 > ./configure --prefix=/projects/ctl/franksen/usr checking build system type... i686-pc-linux-gnu checking host system type... i686-pc-linux-gnu checking target system type... i686-pc-linux-gnu Which we'll further canonicalise into: i386-unknown-linux checking for path to top of build tree... configure: error: cannot determine current directory Looking into configure, I see that it calls 'utils/pwd/pwd forwardslash' which seems to be the culprit, since aragon: .../i386-unknown-linux/ghc-6.8.3 > utils/pwd/pwd forwardslash [1] 28489 floating point exception utils/pwd/pwd forwardslash Cheers Ben

2 2

using GHC for dependency generation, a couple of questions
by Claus Reinke 27 Jun '08

27 Jun '08

http://www.haskell.org/ghc/docs/latest/html/users_guide/separate-compilatio… Recently, I stumbled on -v2 in combination with --make or -M, which produces nice module-based output instead of the file-based makefile dependencies of -M, but have run into a couple of : 1. --make can't be used with -fno-code, and -M always generates a file, so is this the best one can do: ghc -M -v2 -optdep-f -optdep depend Main.hs ? It would be nice to have the dry-run option (isn't that -fno-code?) work with all commands that produce useful stdout information (including --make -v2). 2. I can't seem to figure out what --include-pkg-deps does? In a way, it seems to be always on, since package imports are always listed in the -v2 output. Claus

1 0

error building HEAD
by Jim Burton 27 Jun '08

27 Jun '08

I am trying to build ghc from the latest src from darcs (pulled today) on ubuntu hardy x86. configure and make *seem* to run fine (no errors reported) but make install gives a long stream of errors. Here's some of the output. What's wrong? Thanks! Jim --------------- (.text+0x435): undefined reference to `DistributionziPackage_zdwdisp1_info' Main.o: In function `s7Un_info': (.text+0x7744): undefined reference to `base_TextziReadziLex_a119_info' Main.o: In function `s7VC_info': (.text+0x7de4): undefined reference to `base_TextziReadziLex_a119_info' Main.o: In function `s7WV_info': (.text+0x849c): undefined reference to `base_TextziReadziLex_a119_info' Main.o: In function `s7Ye_info': (.text+0x8b38): undefined reference to `base_TextziReadziLex_a119_info' Main.o: In function `s7Zx_info': (.text+0x91c0): undefined reference to `base_TextziReadziLex_a119_info' Main.o:(.text+0x982c): more undefined references to `base_TextziReadziLex_a119_info' follow Main.o: In function `r7rA_info': (.text+0xd59b): undefined reference to `base_GHCziHandle_checkWritableHandle_info' Main.o: In function `r7rC_info': (.text+0xd5cb): undefined reference to `base_GHCziHandle_checkWritableHandle_info' Main.o: In function `sdW4_info': (.text+0xd62e): undefined reference to `base_GHCziIO_zdwa13_info' Main.o: In function `s8bn_info': (.text+0xd66c): undefined reference to `base_GHCziIO_a25_info' Main.o: In function `r7ug_info': (.text+0xf353): undefined reference to `base_GHCziList_polyzurev_info' Main.o: In function `r7uq_info': (.text+0xf4fb): undefined reference to `base_GHCziHandle_checkWritableHandle_info' Main.o: In function `r7us_info': (.text+0xf52b): undefined reference to `base_GHCziHandle_checkWritableHandle_info' Main.o: In function `sewY_info': (.text+0xf5fd): undefined reference to `base_GHCziIO_zdwa13_info' Main.o: In function `sewX_info': (.text+0xf63f): undefined reference to `base_GHCziIO_a25_info' Main.o: In function `seRK_info': (.text+0x10658): undefined reference to `DistributionziPackage_zdwzsze_info' Main.o: In function `seZs_info': (.text+0x108ed): undefined reference to `base_DataziVersion_compare5_info' Main.o: In function `s8kb_info': (.text+0x10a94): undefined reference to `DistributionziPackage_go1_info' Main.o: In function `s8kq_info': (.text+0x10be4): undefined reference to `DistributionziPackage_go_info' Main.o: In function `r7xq_info': (.text+0x10cae): undefined reference to `DistributionziCompatziReadP_a13_info' Main.o: In function `r7xu_info': (.text+0x10d7f): undefined reference to `DistributionziCompatziReadP_mplus_info' Main.o: In function `r7xw_info': (.text+0x10fa8): undefined reference to `DistributionziCompatziReadP_run_info' Main.o: In function `s8nM_info': (.text+0x1166a): undefined reference to `prettyzm1zi0zi0zi0_TextziPrettyPrintziHughesPJ_fullRender_info' Main.o: In function `sfeV_info': (.text+0x11699): undefined reference to `DistributionziPackage_zdwdisp1_info' Main.o: In function `s8oE_info': (.text+0x119b6): undefined reference to `prettyzm1zi0zi0zi0_TextziPrettyPrintziHughesPJ_fullRender_info' Main.o: In function `sfjk_info': (.text+0x119e5): undefined reference to `DistributionziPackage_zdwdisp1_info' Main.o: In function `s8r2_info': (.text+0x125fe): undefined reference to `DistributionziPackage_showList_info' Main.o: In function `s8ta_info': (.text+0x14fef): undefined reference to `DistributionziLicense_showsPrec_info' Main.o: In function `sfqg_info': (.text+0x152d4): undefined reference to `DistributionziPackage_zdwshowsPrec_info' Main.o: In function `sgFo_info': (.text+0x15e1f): undefined reference to `DistributionziInstalledPackageInfo_showInstalledPackageInfoField_info' Main.o: In function `s8DS_info': (.text+0x16bfc): undefined reference to `SystemziFilePathziPosix_takeDirectory_info' Main.o: In function `sgY1_info': (.text+0x16dda): undefined reference to `base_GHCziIO_zdwa13_info' Main.o: In function `sgXZ_info': (.text+0x16e05): undefined reference to `base_GHCziIO_a25_info' Main.o: In function `sgXV_info': (.text+0x16e50): undefined reference to `base_GHCziIO_zdwa13_info' Main.o: In function `sgXU_info': (.text+0x16e9f): undefined reference to `base_GHCziIO_a25_info' Main.o: In function `sgXK_info': (.text+0x16f58): undefined reference to `directoryzm1zi0zi0zi0_SystemziDirectory_a44_info' Main.o: In function `r7yG_info': (.text+0x16fa1): undefined reference to `base_GHCziIO_a25_info' Main.o: In function `s8EY_info': (.text+0x16fd8): undefined reference to `base_GHCziIOBase_zddmshow6_info' Main.o: In function `sh1S_info': (.text+0x17052): undefined reference to `base_GHCziIO_zdwa13_info' Main.o: In function `s8EU_info': (.text+0x1709c): undefined reference to `base_GHCziIO_a25_info' Main.o: In function `sh3l_info': (.text+0x172bd): undefined reference to `base_GHCziIO_zdwa13_info' Main.o: In function `sh3k_info': (.text+0x172ff): undefined reference to `base_GHCziIO_a25_info' Main.o: In function `s8Fq_info': (.text+0x173e3): undefined reference to `directoryzm1zi0zi0zi0_SystemziDirectory_a34_info' Main.o: In function `s8GG_info': (.text+0x1744d): undefined reference to `directoryzm1zi0zi0zi0_SystemziDirectory_a26_info' Main.o: In function `sh3x_info': (.text+0x17472): undefined reference to `base_GHCziIO_zdwa13_info' Main.o: In function `sh3v_info': (.text+0x1749d): undefined reference to `base_GHCziIO_a25_info' Main.o: In function `s8GT_info': (.text+0x174d3): undefined reference to `directoryzm1zi0zi0zi0_SystemziDirectory_a34_info' Main.o: In function `sh3D_info': (.text+0x17552): undefined reference to `base_GHCziIO_a25_info' Main.o: In function `s8Hh_info': (.text+0x175e3): undefined reference to `base_GHCziIO_a25_info' Main.o: In function `sh3I_info': (.text+0x17625): undefined reference to `base_GHCziIO_zdwa13_info' Main.o: In function `s8Gu_info': (.text+0x17663): undefined reference to `base_GHCziIO_a25_info' Main.o: In function `s8Hk_info': (.text+0x177a9): undefined reference to `base_GHCziIO_a25_info' Main.o: In function `s8I1_info': (.text+0x17918): undefined reference to `base_GHCziIOBase_zddmshow9_info' Main.o: In function `r7yY_info': (.text+0x17cdb): undefined reference to `base_GHCziList_polyzurev_info' Main.o: In function `s8Jq_info': (.text+0x17e6e): undefined reference to `SystemziFilePathziPosix_combineAlways_info' Main.o: In function `s8Jw_info': (.text+0x17e89): undefined reference to `SystemziFilePathziPosix_combineAlways_info' Main.o: In function `shhH_info': (.text+0x17fea): undefined reference to `SystemziFilePathziPosix_combineAlways_info' Main.o: In function `s8JH_info': (.text+0x1801c): undefined reference to `SystemziFilePathziPosix_combineAlways_info' Main.o: In function `shhP_info': (.text+0x1839b): undefined reference to `base_GHCziList_polyzuinitzq_info' Main.o: In function `shhN_info': (.text+0x1843e): undefined reference to `base_GHCziList_polyzulastzq_info' Main.o: In function `shhM_info': (.text+0x1849a): undefined reference to `SystemziFilePathziPosix_splitSearchPath_info' Main.o: In function `shhR_info': (.text+0x1854b): undefined reference to `base_GHCziList_polyzulastzq_info' Main.o: In function `s8Ld_info': (.text+0x18739): undefined reference to `base_GHCziList_polyzurev_info' Main.o: In function `s8LA_info': (.text+0x18908): undefined reference to `base_GHCziList_polyzurev_info' Main.o: In function `shi6_info': (.text+0x18fad): undefined reference to `directoryzm1zi0zi0zi0_SystemziDirectory_a47_info' Main.o: In function `s8MR_info': (.text+0x19076): undefined reference to `base_GHCziList_polyzulastzq_info' Main.o: In function `r7z6_info': (.text+0x19369): undefined reference to `DistributionziParseUtils_zdwlocatedErrorMsg_info' Main.o: In function `s8O1_info': (.text+0x19574): undefined reference to `DistributionziPackage_go1_info' Main.o: In function `s8PZ_info': (.text+0x19a24): undefined reference to `base_GHCziList_polyzurev_info' Main.o: In function `shKV_info': (.text+0x19d8e): undefined reference to `base_GHCziList_polyzurev_info' Main.o: In function `s8R3_info': (.text+0x19e2a): undefined reference to `prettyzm1zi0zi0zi0_TextziPrettyPrintziHughesPJ_fullRender_info' Main.o: In function `shLE_info': (.text+0x19e59): undefined reference to `DistributionziPackage_zdwdisp1_info' Main.o: In function `s8ST_info': (.text+0x1a025): undefined reference to `prettyzm1zi0zi0zi0_TextziPrettyPrintziHughesPJ_fullRender_info' Main.o: In function `s8SX_info': (.text+0x1a067): undefined reference to `DistributionziPackage_zdwdisp1_info' Main.o: In function `shO3_info': (.text+0x1ab09): undefined reference to `base_GHCziIO_zdwa13_info' Main.o: In function `shO0_info': (.text+0x1ab52): undefined reference to `base_GHCziIO_a25_info' Main.o: In function `shNZ_info': (.text+0x1aba2): undefined reference to `base_GHCziList_foldr21_info' Main.o: In function `shNS_info': (.text+0x1ad1d): undefined reference to `base_GHCziIO_zdwa13_info' Main.o: In function `shNO_info': (.text+0x1ad65): undefined reference to `base_GHCziIO_zdwa13_info' Main.o: In function `shNM_info': (.text+0x1ad91): undefined reference to `base_GHCziIO_a25_info' Main.o: In function `shNI_info': (.text+0x1add9): undefined reference to `base_GHCziIO_zdwa13_info' Main.o: In function `shNG_info': (.text+0x1ae05): undefined reference to `base_GHCziIO_a25_info' Main.o: In function `s8XF_info': (.text+0x1ae8f): undefined reference to `base_GHCziIO_a25_info' Main.o: In function `shNB_info': (.text+0x1af89): undefined reference to `processzm1zi0zi0zi0_SystemziCmd_a_info' Main.o: In function `shNA_info': (.text+0x1b027): undefined reference to `base_GHCziIO_a25_info' Main.o: In function `shNx_info': (.text+0x1b0e2): undefined reference to `base_GHCziList_foldr21_info' Main.o: In function `s8ZY_info': (.text+0x1b7dd): undefined reference to `prettyzm1zi0zi0zi0_TextziPrettyPrintziHughesPJ_fullRender_info' Main.o: In function `shOU_info': (.text+0x1b80d): undefined reference to `DistributionziPackage_zdwdisp1_info' Main.o: In function `s90Q_info': (.text+0x1b961): undefined reference to `prettyzm1zi0zi0zi0_TextziPrettyPrintziHughesPJ_fullRender_info' Main.o: In function `shPo_info': (.text+0x1b991): undefined reference to `DistributionziPackage_zdwdisp1_info' Main.o: In function `s91h_info': (.text+0x1bb55): undefined reference to `prettyzm1zi0zi0zi0_TextziPrettyPrintziHughesPJ_fullRender_info' Main.o: In function `shPt_info': (.text+0x1bb9f): undefined reference to `DistributionziPackage_zdwdisp1_info' Main.o: In function `s920_info': (.text+0x1bec5): undefined reference to `prettyzm1zi0zi0zi0_TextziPrettyPrintziHughesPJ_fullRender_info' Main.o: In function `shPC_info': (.text+0x1bef5): undefined reference to `DistributionziPackage_zdwdisp1_info' Main.o: In function `shL9_info': (.text+0x1c28e): undefined reference to `DistributionziCompatziReadP_run_info' Main.o: In function `shL7_info': (.text+0x1c2cd): undefined reference to `base_GHCziIO_zdwa13_info' Main.o: In function `s92A_info': (.text+0x1c2fc): undefined reference to `base_GHCziIO_a25_info' Main.o: In function `shPO_info': (.text+0x1c3a9): undefined reference to `DistributionziInstalledPackageInfo_foldM1_info' Main.o: In function `shL6_info': (.text+0x1c3ca): undefined reference to `DistributionziParseUtils_readFields_info' Main.o: In function `s93n_info': (.text+0x1c5aa): undefined reference to `base_GHCziIO_a25_info' Main.o: In function `shQ0_info': (.text+0x1c65b): undefined reference to `base_GHCziIO_a25_info' Main.o: In function `s98Z_info': (.text+0x1d065): undefined reference to `prettyzm1zi0zi0zi0_TextziPrettyPrintziHughesPJ_fullRender_info' Main.o: In function `siWl_info': (.text+0x1d095): undefined reference to `DistributionziPackage_zdwdisp1_info' Main.o: In function `s99o_info': (.text+0x1d181): undefined reference to `prettyzm1zi0zi0zi0_TextziPrettyPrintziHughesPJ_fullRender_info' Main.o: In function `siWj_info': (.text+0x1d1b1): undefined reference to `DistributionziPackage_zdwdisp1_info' Main.o: In function `s99J_info': (.text+0x1d319): undefined reference to `prettyzm1zi0zi0zi0_TextziPrettyPrintziHughesPJ_fullRender_info' Main.o: In function `siWg_info': (.text+0x1d349): undefined reference to `DistributionziPackage_zdwdisp1_info' Main.o: In function `s9bf_info': (.text+0x1d492): undefined reference to `prettyzm1zi0zi0zi0_TextziPrettyPrintziHughesPJ_fullRender_info' Main.o: In function `s9aW_info': (.text+0x1d5d1): undefined reference to `prettyzm1zi0zi0zi0_TextziPrettyPrintziHughesPJ_zdwmkNest_info' Main.o: In function `s9aU_info': (.text+0x1d5f2): undefined reference to `prettyzm1zi0zi0zi0_TextziPrettyPrintziHughesPJ_reduceDoc_info' Main.o: In function `s9aS_info': (.text+0x1d619): undefined reference to `prettyzm1zi0zi0zi0_TextziPrettyPrintziHughesPJ_fill_info' Main.o: In function `s9aQ_info': (.text+0x1d641): undefined reference to `prettyzm1zi0zi0zi0_TextziPrettyPrintziHughesPJ_punctuate_info' Main.o: In function `siWO_info': (.text+0x1d6fd): undefined reference to `base_GHCziIO_zdwa13_info' Main.o: In function `siWN_info': (.text+0x1d748): undefined reference to `base_GHCziIO_a25_info' Main.o: In function `siWc_info': (.text+0x1d896): undefined reference to `base_GHCziIO_zdwa13_info' Main.o: In function `s9bF_info': (.text+0x1d8e6): undefined reference to `base_GHCziIO_a25_info' Main.o: In function `s98v_info': (.text+0x1da51): undefined reference to `base_GHCziList_polyzurev_info' Main.o: In function `s9bY_info': (.text+0x1ddd8): undefined reference to `DistributionziInstalledPackageInfo_showInstalledPackageInfo_info' Main.o: In function `sjbS_info': (.text+0x1de19): undefined reference to `base_GHCziIO_zdwa13_info' Main.o: In function `sjbR_info': (.text+0x1de73): undefined reference to `base_GHCziIO_a25_info' Main.o: In function `sjdd_info': (.text+0x1df0a): undefined reference to `base_GHCziList_polyzulastzq_info' Main.o: In function `s9cG_info': (.text+0x1df84): undefined reference to `SystemziFilePathziPosix_takeDirectory_info' Main.o: In function `sjdl_info': (.text+0x1e3bd): undefined reference to `base_GHCziIO_zdwa13_info' Main.o: In function `sjdk_info': (.text+0x1e41d): undefined reference to `base_GHCziIO_a25_info' Main.o: In function `s9k6_info': (.text+0x1f306): undefined reference to `base_GHCziList_polyzuinitzq_info' Main.o: In function `s9ko_info': (.text+0x1f456): undefined reference to `base_GHCziList_polyzurev_info' Main.o: In function `s9ku_info': (.text+0x1f4aa): undefined reference to `base_GHCziList_polyzurev_info' Main.o: In function `s9kB_info': (.text+0x1f566): undefined reference to `base_GHCziList_polyzuinitzq_info' Main.o: In function `s9km_info': (.text+0x1f751): undefined reference to `base_GHCziList_polyzulastzq_info' Main.o: In function `s9km_info': (.text+0x1f778): undefined reference to `base_GHCziList_polyzulastzq_info' Main.o: In function `s9nh_info': (.text+0x20002): undefined reference to `prettyzm1zi0zi0zi0_TextziPrettyPrintziHughesPJ_fullRender_info' Main.o: In function `sjAB_info': (.text+0x20031): undefined reference to `DistributionziPackage_zdwdisp1_info' Main.o: In function `s9nj_info': (.text+0x20099): undefined reference to `base_GHCziList_polyzulastzq_info' Main.o: In function `sjAC_info': (.text+0x200be): undefined reference to `base_GHCziIO_zdwa13_info' Main.o: In function `sjAz_info': (.text+0x20118): undefined reference to `base_GHCziIO_a25_info' Main.o: In function `s9rN_info': (.text+0x20d9a): undefined reference to `prettyzm1zi0zi0zi0_TextziPrettyPrintziHughesPJ_fullRender_info' Main.o: In function `s9qR_info': (.text+0x2102d): undefined reference to `prettyzm1zi0zi0zi0_TextziPrettyPrintziHughesPJ_zdwmkNest_info' Main.o: In function `s9qP_info': (.text+0x2104e): undefined reference to `prettyzm1zi0zi0zi0_TextziPrettyPrintziHughesPJ_reduceDoc_info' Main.o: In function `s9qN_info': (.text+0x21075): undefined reference to `prettyzm1zi0zi0zi0_TextziPrettyPrintziHughesPJ_fill_info' Main.o: In function `s9qL_info': (.text+0x2109d): undefined reference to `prettyzm1zi0zi0zi0_TextziPrettyPrintziHughesPJ_punctuate_info' Main.o: In function `s9qp_info': (.text+0x21241): undefined reference to `prettyzm1zi0zi0zi0_TextziPrettyPrintziHughesPJ_fullRender_info' Main.o: In function `sjBy_info': (.text+0x21271): undefined reference to `DistributionziPackage_zdwdisp1_info' Main.o: In function `s9ru_info': (.text+0x21409): undefined reference to `prettyzm1zi0zi0zi0_TextziPrettyPrintziHughesPJ_fill_info' Main.o: In function `s9rs_info': (.text+0x21431): undefined reference to `prettyzm1zi0zi0zi0_TextziPrettyPrintziHughesPJ_punctuate_info' Main.o: In function `s9rm_info': (.text+0x214c9): undefined reference to `prettyzm1zi0zi0zi0_TextziPrettyPrintziHughesPJ_fullRender_info' Main.o: In function `sjBv_info': (.text+0x214f9): undefined reference to `DistributionziPackage_zdwdisp1_info' Main.o: In function `sjBz_info': (.text+0x2161d): undefined reference to `base_GHCziIO_zdwa13_info' Main.o: In function `sjBr_info': (.text+0x2167d): undefined reference to `base_GHCziIO_a25_info' Main.o: In function `sjzI_info': (.text+0x21b5f): undefined reference to `unixzm2zi3zi0zi0_SystemziPosixziSignals_a38_info' Main.o: In function `sjzH_info': (.text+0x21bc7): undefined reference to `unixzm2zi3zi0zi0_SystemziPosixziSignals_a38_info' Main.o: In function `sjzE_info': (.text+0x21c2b): undefined reference to `base_GHCziIO_a25_info' Main.o: In function `sjzB_info': (.text+0x21d01): undefined reference to `base_GHCziIO_a25_info' Main.o: In function `sjzs_info': (.text+0x2209b): undefined reference to `base_GHCziTopHandler_a7_info' Main.o: In function `r7nA_srt': (.data+0x0): undefined reference to `prettyzm1zi0zi0zi0_TextziPrettyPrintziHughesPJ_fullRender_closure' Main.o: In function `r7nC_srt': (.data+0xc): undefined reference to `prettyzm1zi0zi0zi0_TextziPrettyPrintziHughesPJ_fullRender_closure' Main.o: In function `r7nE_srt': (.data+0x18): undefined reference to `prettyzm1zi0zi0zi0_TextziPrettyPrintziHughesPJ_fullRender_closure' Main.o: In function `r7nI_srt': (.data+0x28): undefined reference to `prettyzm1zi0zi0zi0_TextziPrettyPrintziHughesPJ_fullRender_closure' Main.o: In function `r7nK_srt': (.data+0x34): undefined reference to `prettyzm1zi0zi0zi0_TextziPrettyPrintziHughesPJ_fullRender_closure' Main.o: In function `r7oI_srt': (.data+0x220): undefined reference to `base_TextziReadziLex_a119_closure' Main.o: In function `r7oI_srt': (.data+0x22c): undefined reference to `DistributionziPackage_a17_closure' Main.o: In function `r7oI_srt': (.data+0x230): undefined reference to `DistributionziPackage_a16_closure' Main.o: In function `r7oI_srt': (.data+0x23c): undefined reference to `DistributionziLicense_a20_closure' Main.o: In function `r7oS_srt': (.data+0x7a4): undefined reference to `prettyzm1zi0zi0zi0_TextziPrettyPrintziHughesPJ_fullRender_closure' Main.o: In function `r7pq_srt': (.data+0x8a4): undefined reference to `prettyzm1zi0zi0zi0_TextziPrettyPrintziHughesPJ_fullRender_closure' Main.o: In function `r7ps_srt': (.data+0x8b0): undefined reference to `prettyzm1zi0zi0zi0_TextziPrettyPrintziHughesPJ_fullRender_closure' Main.o: In function `r7rA_srt': (.data+0xcb0): undefined reference to `base_GHCziHandle_checkWritableHandle_closure' Main.o: In function `r7rC_srt': (.data+0xcc0): undefined reference to `base_GHCziHandle_checkWritableHandle_closure' Main.o: In function `r7rE_srt': (.data+0xccc): undefined reference to `base_GHCziIO_zdwa13_closure' Main.o: In function `r7rE_srt': (.data+0xcd4): undefined reference to `base_GHCziIO_a25_closure' Main.o: In function `r7rW_srt': (.data+0xd74): undefined reference to `directoryzm1zi0zi0zi0_SystemziDirectory_lvl5_closure' Main.o: In function `r7rW_srt': (.data+0xd78): undefined reference to `directoryzm1zi0zi0zi0_SystemziDirectory_a8_closure' Main.o: In function `r7uq_srt': (.data+0x12f4): undefined reference to `base_GHCziHandle_checkWritableHandle_closure' Main.o: In function `r7us_srt': (.data+0x1304): undefined reference to `base_GHCziHandle_checkWritableHandle_closure' Main.o: In function `r7uu_srt': (.data+0x1310): undefined reference to `base_GHCziIO_zdwa13_closure' Main.o: In function `r7uu_srt': (.data+0x1318): undefined reference to `base_GHCziIO_a25_closure' Main.o: In function `r7uy_srt': (.data+0x1354): undefined reference to `directoryzm1zi0zi0zi0_SystemziDirectory_lvl10_closure' Main.o: In function `r7uy_srt': (.data+0x1358): undefined reference to `directoryzm1zi0zi0zi0_SystemziDirectory_a8_closure' Main.o: In function `r7xm_srt': (.data+0x18e0): undefined reference to `DistributionziPackage_lvl2_closure' Main.o: In function `r7xo_srt': (.data+0x18ec): undefined reference to `DistributionziPackage_ds_closure' Main.o: In function `r7xo_srt': (.data+0x18f0): undefined reference to `DistributionziPackage_lvl2_closure' Main.o: In function `r7xs_srt': (.data+0x1910): undefined reference to `DistributionziPackage_ds_closure' Main.o: In function `r7xu_srt': (.data+0x1928): undefined reference to `DistributionziCompatziReadP_mplus_closure' Main.o: In function `r7xC_closure': (.data+0x1990): undefined reference to `prettyzm1zi0zi0zi0_TextziPrettyPrintziHughesPJ_Str_static_info' Main.o: In function `rXy_srt': (.data+0x19b8): undefined reference to `prettyzm1zi0zi0zi0_TextziPrettyPrintziHughesPJ_fullRender_closure' Main.o: In function `rXu_srt': (.data+0x19c4): undefined reference to `prettyzm1zi0zi0zi0_TextziPrettyPrintziHughesPJ_fullRender_closure' Main.o: In function `rXu_srt': (.data+0x19c8): undefined reference to `prettyzm1zi0zi0zi0_TextziPrettyPrintziHughesPJ_fullRender_closure' Main.o: In function `r7y2_srt': (.data+0x1a78): undefined reference to `DistributionziPackage_showList_closure' Main.o: In function `r7y2_srt': (.data+0x1a7c): undefined reference to `DistributionziInstalledPackageInfo_zddmshowList1_closure' Main.o: In function `r7y2_srt': (.data+0x1a84): undefined reference to `DistributionziPackage_zdwshowsPrec_closure' Main.o: In function `r7y2_srt': (.data+0x1a90): undefined reference to `DistributionziLicense_showsPrec_closure' Main.o: In function `r7yo_srt': (.data+0x1b18): undefined reference to `prettyzm1zi0zi0zi0_TextziPrettyPrintziHughesPJ_fullRender_closure' Main.o: In function `r7ys_srt': (.data+0x1b34): undefined reference to `DistributionziInstalledPackageInfo_showInstalledPackageInfoField_closure' Main.o: In function `r7yy_srt': (.data+0x1c78): undefined reference to `prettyzm1zi0zi0zi0_TextziPrettyPrintziHughesPJ_fullRender_closure' Main.o: In function `r7yA_srt': (.data+0x1c84): undefined reference to `prettyzm1zi0zi0zi0_TextziPrettyPrintziHughesPJ_fullRender_closure' Main.o: In function `r7yG_srt': (.data+0x1cb0): undefined reference to `directoryzm1zi0zi0zi0_SystemziDirectory_a44_closure' Main.o: In function `r7yG_srt': (.data+0x1cb8): undefined reference to `base_GHCziIO_zdwa13_closure' Main.o: In function `r7yG_srt': (.data+0x1cc0): undefined reference to `base_GHCziIO_a25_closure' Main.o: In function `r7yI_srt': (.data+0x1cec): undefined reference to `base_GHCziIO_zdwa13_closure' Main.o: In function `r7yI_srt': (.data+0x1cf4): undefined reference to `base_GHCziIO_a25_closure' Main.o: In function `r7yI_srt': (.data+0x1cf8): undefined reference to `base_GHCziIOBase_zddmshow6_closure' Main.o: In function `r7yK_srt': (.data+0x1d0c): undefined reference to `directoryzm1zi0zi0zi0_SystemziDirectory_a34_closure' Main.o: In function `r7yK_srt': (.data+0x1d10): undefined reference to `directoryzm1zi0zi0zi0_SystemziDirectory_a26_closure' Main.o: In function `r7yK_srt': (.data+0x1d14): undefined reference to `base_GHCziIO_zdwa13_closure' Main.o: In function `r7yK_srt': (.data+0x1d1c): undefined reference to `base_GHCziIO_a25_closure' Main.o: In function `r7yO_closure': (.data+0x1d60): undefined reference to `directoryzm1zi0zi0zi0_SystemziDirectory_a5_closure' Main.o: In function `r7yQ_closure': (.data+0x1d70): undefined reference to `directoryzm1zi0zi0zi0_SystemziDirectory_lvl4_closure' Main.o: In function `r7yU_srt': (.data+0x1d94): undefined reference to `base_GHCziIOBase_zddmshow9_closure' Main.o: In function `r7z2_srt': (.data+0x1ddc): undefined reference to `directoryzm1zi0zi0zi0_SystemziDirectory_lvl10_closure' Main.o: In function `r7z2_srt': (.data+0x1de0): undefined reference to `directoryzm1zi0zi0zi0_SystemziDirectory_lvl5_closure' Main.o: In function `r7z2_srt': (.data+0x1de4): undefined reference to `directoryzm1zi0zi0zi0_SystemziDirectory_a8_closure' Main.o: In function `r7z2_srt': (.data+0x1de8): undefined reference to `directoryzm1zi0zi0zi0_SystemziDirectory_a3_closure' Main.o: In function `r7z2_srt': (.data+0x1dec): undefined reference to `directoryzm1zi0zi0zi0_SystemziDirectory_a47_closure' Main.o: In function `r7z6_srt': (.data+0x1e84): undefined reference to `DistributionziParseUtils_zdwlocatedErrorMsg_closure' Main.o: In function `r7ze_srt': (.data+0x1ea4): undefined reference to `DistributionziPackage_lvl2_closure' Main.o: In function `r7zg_srt': (.data+0x1eb0): undefined reference to `DistributionziPackage_ds_closure' Main.o: In function `r7zg_srt': (.data+0x1eb4): undefined reference to `DistributionziPackage_lvl2_closure' Main.o: In function `r7zi_srt': (.data+0x1ecc): undefined reference to `prettyzm1zi0zi0zi0_TextziPrettyPrintziHughesPJ_fullRender_closure' Main.o: In function `r7zi_srt': (.data+0x1ed0): undefined reference to `DistributionziInstalledPackageInfo_lvl85_closure' Main.o: In function `r7zi_srt': (.data+0x1ed4): undefined reference to `DistributionziParseUtils_readFields_closure' Main.o: In function `r7zi_srt': (.data+0x1ed8): undefined reference to `processzm1zi0zi0zi0_SystemziCmd_a_closure' Main.o: In function `r7zi_srt': (.data+0x1ef4): undefined reference to `base_GHCziIO_zdwa13_closure' Main.o: In function `r7zi_srt': (.data+0x1efc): undefined reference to `base_GHCziIO_a25_closure' Main.o: In function `r7zi_srt': (.data+0x1f90): undefined reference to `prettyzm1zi0zi0zi0_TextziPrettyPrintziHughesPJ_fullRender_closure' Main.o: In function `r7zw_srt': (.data+0x256c): undefined reference to `prettyzm1zi0zi0zi0_TextziPrettyPrintziHughesPJ_fill_closure' Main.o: In function `r7zw_srt': (.data+0x2570): undefined reference to `prettyzm1zi0zi0zi0_TextziPrettyPrintziHughesPJ_fullRender_closure' Main.o: In function `r7zw_srt': (.data+0x2574): undefined reference to `base_GHCziIO_zdwa13_closure' Main.o: In function `r7zw_srt': (.data+0x257c): undefined reference to `base_GHCziIO_a25_closure' Main.o: In function `r7zw_srt': (.data+0x2580): undefined reference to `prettyzm1zi0zi0zi0_TextziPrettyPrintziHughesPJ_fullRender_closure' Main.o: In function `r7zw_srt': (.data+0x2584): undefined reference to `prettyzm1zi0zi0zi0_TextziPrettyPrintziHughesPJ_reduceDoc_closure' Main.o: In function `r7zw_srt': (.data+0x2588): undefined reference to `prettyzm1zi0zi0zi0_TextziPrettyPrintziHughesPJ_fullRender_closure' Main.o: In function `r7zy_srt': (.data+0x2598): undefined reference to `DistributionziInstalledPackageInfo_showInstalledPackageInfo_closure' Main.o: In function `r7zy_srt': (.data+0x259c): undefined reference to `base_GHCziIO_zdwa13_closure' Main.o: In function `r7zy_srt': (.data+0x25a4): undefined reference to `base_GHCziIO_a25_closure' Main.o: In function `r7zA_srt': (.data+0x25b4): undefined reference to `base_GHCziIO_zdwa13_closure' Main.o: In function `r7zA_srt': (.data+0x25bc): undefined reference to `base_GHCziIO_a25_closure' Main.o: In function `r7zE_closure': (.data+0x25f4): undefined reference to `prettyzm1zi0zi0zi0_TextziPrettyPrintziHughesPJ_Str_static_info' Main.o: In function `r7Am_closure': (.data+0x270c): undefined reference to `base_GHCziBase_Z0T_closure' Main.o: In function `r7Au_closure': (.data+0x2760): undefined reference to `prettyzm1zi0zi0zi0_TextziPrettyPrintziHughesPJ_fill_closure' Main.o: In function `r7Au_closure': (.data+0x2764): undefined reference to `prettyzm1zi0zi0zi0_TextziPrettyPrintziHughesPJ_fullRender_closure' Main.o: In function `r7Au_closure': (.data+0x2768): undefined reference to `unixzm2zi3zi0zi0_SystemziPosixziSignals_a38_closure' Main.o: In function `r7Au_closure': (.data+0x2778): undefined reference to `base_GHCziIO_zdwa13_closure' Main.o: In function `r7Au_closure': (.data+0x2780): undefined reference to `base_GHCziIO_a25_closure' Main.o: In function `r7Au_closure': (.data+0x278c): undefined reference to `prettyzm1zi0zi0zi0_TextziPrettyPrintziHughesPJ_reduceDoc_closure' Main.o: In function `r7Au_closure': (.data+0x2790): undefined reference to `prettyzm1zi0zi0zi0_TextziPrettyPrintziHughesPJ_fullRender_closure' Main.o: In function `r7Au_closure': (.data+0x2794): undefined reference to `prettyzm1zi0zi0zi0_TextziPrettyPrintziHughesPJ_fullRender_closure' Main.o: In function `ckw6_srtd': (.data+0x2c6c): undefined reference to `base_GHCziTopHandler_a7_closure' collect2: ld returned 1 exit status <<ghc: 50195956 bytes, 6 GCs, 131072/131072 avg/max bytes residency (1 samples), 31M in use, 0.00 INIT (0.00 elapsed), 0.32 MUT (7.32 elapsed), 0.06 GC (0.12 elapsed) :ghc>> make[2]: *** [ghc-pkg.bin] Error 1 Failed making install in ghc-pkg: 1 make[1]: *** [install] Error 1 make: *** [install] Error 1 -- View this message in context: http://www.nabble.com/error-building-HEAD-tp18136817p18136817.html Sent from the Haskell - Glasgow-haskell-users mailing list archive at Nabble.com.

2 4

Default class method inlining bug (wasn't this fixed?)
by Scott Dillard 26 Jun '08

26 Jun '08

Hi, I'm seeing the following bug revived in 6.8.2 and 6.8.3: http://hackage.haskell.org/trac/ghc/ticket/672 I use a default definition for class method, one that calls methods of dependent (super?) classes. Of course I'm embarrassed it took me so long to realize I didn't _need_ the class in the first place, I could just write a plain polymorphic function that calls those methods. Regardless, looks like a bug to me. Two files are attached, Test.hs and Vec.hs. Search for "BUG IS HERE" in Test.hs. There is a class and an instance declaration. Compile as-is to see the correct result. Comment out the method definition in the instance declaration to see the bug. If someone confirms, I'll open a ticket. Scott

2 3

Recursive functions and constant parameter closures (inlining/strictness analyzer question)
by Tyson Whitehead 25 Jun '08

25 Jun '08

main = print $ foldl' (+) 0 [1..] with foldl' f y xs = foldl' y xs where foldl' y [] = y foldl' y (x:xs) = foldl' (f y x) xs runs indefinitely with very little memory consumption, while foldl' f y [] = y foldl' f y (x:xs) = foldl' f (f y x) xs rapidly consumes all the machine's memory and dies. Running ghc with -ddump-stranal shows the outer foldl' of the first gets inlined into main as a call to the following specialized version of the inner foldl': foldl'_sSY [ALWAYS LoopBreaker Nothing] :: GHC.Num.Integer -> [GHC.Num.Integer] -> GHC.Num.Integer [Arity 2 Str: DmdType SS] foldl'_sSY = \ (y_aj7 [ALWAYS Just S] :: GHC.Num.Integer) (ds_dQl [ALWAYS Just S] :: [GHC.Num.Integer]) -> case ds_dQl of wild_XH [ALWAYS Just A] { [] -> y_aj7; : x_aja [ALWAYS Just S] xs_ajb [ALWAYS Just S] -> foldl'_sSY (GHC.Num.plusInteger y_aj7 x_aja) xs_ajb } Doing the same with the second foldl' shows it to remains non-inlined and fully polymorphic: foldl'_sQN [ALWAYS LoopBreaker Nothing] :: forall t_auW t_av2. (t_av2 -> t_auW -> t_av2) -> t_av2 -> [t_auW] -> t_av2 [Arity 3 Str: DmdType LLS] foldl'_sQN = \ (@ t_auW) (@ t_av2) (f_aj0 [ALWAYS Just L] :: t_av2 -> t_auW -> t_av2) (y_aj1 [ALWAYS Just L] :: t_av2) (ds_dQg [ALWAYS Just S] :: [t_auW]) -> case ds_dQg of wild_XK [ALWAYS Just A] { [] -> y_aj1; : x_aj5 [ALWAYS Just L] xs_aj6 [ALWAYS Just S] -> foldl'_sQN @ t_auW @ t_av2 f_aj0 (f_aj0 y_aj1 x_aj5) xs_aj6 } Forcing it inline with {-# INLINE foldl' #-} just specialized it: foldl'_sSS [ALWAYS LoopBreaker Nothing] :: (GHC.Num.Integer -> GHC.Num.Integer -> GHC.Num.Integer) -> GHC.Num.Integer -> [GHC.Num.Integer] -> GHC.Num.Integer [Arity 3 Str: DmdType LLS] foldl'_sSS = \ (f_aj0 [ALWAYS Just L] :: GHC.Num.Integer -> GHC.Num.Integer -> GHC.Num.Integer) (y_aj1 [ALWAYS Just L] :: GHC.Num.Integer) (ds_dQg [ALWAYS Just S] :: [GHC.Num.Integer]) -> case ds_dQg of wild_XI [ALWAYS Just A] { [] -> y_aj1; : x_aj5 [ALWAYS Just L] xs_aj6 [ALWAYS Just S] -> foldl'_sSS f_aj0 (f_aj0 y_aj1 x_aj5) xs_aj6 } I thought this was interesting. Is it to be expected? Am I right in interpreting this to mean it was just too much for the strictness analyzer. I believe the first ultimately produces significantly superior code, so should one always write their recursive functions such that the constant (functional?) parameters are first captured in a closure? In that vein, would it be useful if the compiler automatically transformed the second into the first? Thanks! -Tyson

7 14