diff --git a/NEWS b/NEWS new file mode 100644 --- /dev/null +++ b/NEWS @@ -0,0 +1,14 @@ +Changes in 0.4 +* Switch to native (Cabal-based) configure +* Tracy Wadleigh added support for quasi-random number sequences + +Changes in 0.3.2 +* Shawn Garbett added the Cauchy distribution + +Changes in 0.3.1 +* Add exponential distribution + +Changes in 0.3: + +* Add Levy alpha-Stable distributions +* Fix GHCi bus error on x86-64 diff --git a/README b/README deleted file mode 100644 --- a/README +++ /dev/null @@ -1,17 +0,0 @@ -To build the package, there is no need to run the configure script. Just -use the standard cabal commands: - - runhaskell Setup.lhs configure - runhaskell Setup.lhs build - runhaskell Setup.lhs install - -The package uses a script to find what CBLAS library to link with. 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(i+1) +> | i <- findIndices (== "-framework") libs +> , i < length libs ] +> , extraLibs = flag "-l" libs +> , extraLibDirs = flag "-L" libs +> , includeDirs = flag "-I" cflags +> } +> where +> verbosity = normal -- honestly, this is a hack +> flag f ws = +> let l = length f in [ drop l w | w <- ws, take l w == f ] +> +> diff --git a/aclocal.m4 b/aclocal.m4 deleted file mode 100644 --- a/aclocal.m4 +++ /dev/null @@ -1,15 +0,0 @@ -# generated automatically by aclocal 1.10 -*- Autoconf -*- - -# Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, -# 2005, 2006 Free Software Foundation, Inc. -# This file is free software; the Free Software Foundation -# gives unlimited permission to copy and/or distribute it, -# with or without modifications, as long as this notice is preserved. - -# This program is distributed in the hope that it will be useful, -# but WITHOUT ANY WARRANTY, to the extent permitted by law; without -# even the implied warranty of MERCHANTABILITY or FITNESS FOR A -# PARTICULAR PURPOSE. - -m4_include([m4/ax_cblas.m4]) -m4_include([m4/ax_gsl.m4]) diff --git a/cbits/qrng_extras.c b/cbits/qrng_extras.c new file mode 100644 --- /dev/null +++ b/cbits/qrng_extras.c @@ -0,0 +1,31 @@ +#include "gsl/gsl_qrng.h" + +unsigned int gsl_qrng_get_dimension(gsl_qrng* p_qrng) +{ + return p_qrng->dimension; +} + +unsigned int gsl_qrng_get_max_dimension(gsl_qrng_type* p_qrng_type) +{ + return p_qrng_type->max_dimension; +} + +const gsl_qrng_type* gsl_qrng_get_niederreiter_2() +{ + return gsl_qrng_niederreiter_2; +} + +const gsl_qrng_type* gsl_qrng_get_sobol() +{ + return gsl_qrng_sobol; +} + +const gsl_qrng_type* gsl_qrng_get_halton() +{ + return gsl_qrng_halton; +} + +const gsl_qrng_type* gsl_qrng_get_reversehalton() +{ + return gsl_qrng_reversehalton; +} diff --git a/configure b/configure deleted file mode 100644 --- a/configure +++ /dev/null @@ -1,6216 +0,0 @@ -#! /bin/sh -# Guess values for system-dependent variables and create Makefiles. -# Generated by GNU Autoconf 2.62 for Haskell gsl-random 0.2. -# -# Report bugs to . -# -# Copyright (C) 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001, -# 2002, 2003, 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc. -# This configure script is free software; the Free Software Foundation -# gives unlimited permission to copy, distribute and modify it. -## --------------------- ## -## M4sh Initialization. ## -## --------------------- ## - -# Be more Bourne compatible -DUALCASE=1; export DUALCASE # for MKS sh -if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then - emulate sh - NULLCMD=: - # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which - # is contrary to our usage. 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Patrick Perry -author: Patrick Perry -maintainer: Patrick Perry -cabal-version: >= 1.2.0 -build-type: Configure -tested-with: GHC == 6.10.1 - -extra-source-files: README configure.ac configure - aclocal.m4 m4/ax_cblas.m4 m4/ax_gsl.m4 - gsl-random.buildinfo.in +copyright: Patrick Perry, + Tracy Wadleigh +author: Patrick Perry, + Tracy Wadleigh +maintainer: Patrick Perry +cabal-version: >= 1.4.0 +build-type: Custom +tested-with: GHC == 6.12.3 -extra-tmp-files: config.log config.status autom4te.cache - gsl-random.buildinfo +extra-source-files: NEWS library hs-source-dirs: lib exposed-modules: GSL.Random.Gen GSL.Random.Dist + GSL.Random.Quasi other-modules: GSL.Random.Gen.Internal + GSL.Random.Quasi.Internal + c-sources: cbits/qrng_extras.c ghc-options: -Wall + if !os(darwin) + cc-options: -fPIC extensions: ForeignFunctionInterface - build-depends: base + build-depends: base >= 4 && < 5 diff --git a/lib/GSL/Random/Dist.hs b/lib/GSL/Random/Dist.hs --- a/lib/GSL/Random/Dist.hs +++ b/lib/GSL/Random/Dist.hs @@ -47,7 +47,6 @@ getFlat, -- * The Exponential Distribution - exponentialPdf, exponentialP, @@ -69,6 +68,15 @@ getPoisson, + -- * The Cauchy Distribution + getCauchy, + + cauchyPdf, + cauchyP, + cauchyQ, + cauchyPInv, + cauchyQInv + ) where import Control.Monad @@ -370,7 +378,49 @@ - +-- | @cauchyPdf x a@ evaluates the probability density @p(x)@ at @x@ +-- for a Cauchy distribution with scale parameter @a@. The density +-- is given by @p(x) dx = { 1 \over a\pi (1 + (x/a^2)) } dx@. +cauchyPdf :: Double -> Double -> Double +cauchyPdf = liftDouble2 gsl_ran_cauchy_pdf + +foreign import ccall unsafe "gsl/gsl_randist.h" + gsl_ran_cauchy_pdf :: CDouble -> CDouble -> CDouble + +-- | @getCauchy r a@ gets a random cauchy with scale @a@. +getCauchy :: RNG -> Double -> IO Double +getCauchy (MkRNG f) a = withForeignPtr f $ \p -> + liftM realToFrac $ gsl_ran_cauchy p (realToFrac a) + +foreign import ccall unsafe "gsl/gsl_randist.h" + gsl_ran_cauchy :: Ptr () -> CDouble -> IO CDouble + +cauchyP :: Double -> Double -> Double +cauchyP = liftDouble2 gsl_cdf_cauchy_P + +foreign import ccall unsafe "gsl/gsl_randist.h" + gsl_cdf_cauchy_P :: CDouble -> CDouble -> CDouble + +cauchyQ :: Double -> Double -> Double +cauchyQ = liftDouble2 gsl_cdf_cauchy_Q + +foreign import ccall unsafe "gsl/gsl_randist.h" + gsl_cdf_cauchy_Q :: CDouble -> CDouble -> CDouble + +cauchyPInv :: Double -> Double -> Double +cauchyPInv = liftDouble2 gsl_cdf_cauchy_Pinv + +foreign import ccall unsafe "gsl/gsl_randist.h" + gsl_cdf_cauchy_Pinv :: CDouble -> CDouble -> CDouble + +cauchyQInv :: Double -> Double -> Double +cauchyQInv = liftDouble2 gsl_cdf_cauchy_Qinv + +foreign import ccall unsafe "gsl/gsl_randist.h" + gsl_cdf_cauchy_Qinv :: CDouble -> CDouble -> CDouble + + + liftDouble :: (CDouble -> CDouble) -> Double -> Double liftDouble f x = diff --git a/lib/GSL/Random/Gen/Internal.hs b/lib/GSL/Random/Gen/Internal.hs --- a/lib/GSL/Random/Gen/Internal.hs +++ b/lib/GSL/Random/Gen/Internal.hs @@ -167,7 +167,7 @@ withForeignPtr fptr $ \ptr -> peekArray n (gsl_rng_state ptr) -foreign import ccall unsafe "gsl/gsl_randist.h" +foreign import ccall unsafe "gsl/gsl_rng.h" gsl_rng_state :: Ptr () -> Ptr Word8 -- | Set the generator state. The input array should have size equal diff --git a/lib/GSL/Random/Quasi.hs b/lib/GSL/Random/Quasi.hs new file mode 100644 --- /dev/null +++ b/lib/GSL/Random/Quasi.hs @@ -0,0 +1,15 @@ +---------------------------------------------------------------------------- +-- | +-- Module : GSL.Random.Quasi +-- Copyright : Copyright (c) 2009 , Tracy Wadleigh +-- License : BSD3 +-- Maintainer : Patrick Perry +-- Stability : experimental +-- +-- Quasi-random number generators. + +module GSL.Random.Quasi ( + module GSL.Random.Quasi.Internal + ) where + +import GSL.Random.Quasi.Internal hiding ( MkQRNG ) diff --git a/lib/GSL/Random/Quasi/Internal.hs b/lib/GSL/Random/Quasi/Internal.hs new file mode 100644 --- /dev/null +++ b/lib/GSL/Random/Quasi/Internal.hs @@ -0,0 +1,219 @@ +{-# LANGUAGE ForeignFunctionInterface #-} +---------------------------------------------------------------------------- +-- | +-- Module : GSL.Random.Quasi.Internal +-- Copyright : Copyright (c) 2009 , Tracy Wadleigh +-- License : BSD3 +-- Maintainer : Patrick Perry +-- Stability : experimental +-- + +module GSL.Random.Quasi.Internal ( + -- * Data types + QRNG(..), + QRNGType, + + -- * Initializing + newQRNG, + resetQRNG, + + -- * Sampling + getSample, + getListSample, + + -- * Auxiliary functions + getName, + getDimension, + getSize, + getState, + setState, + + -- * Copying state + copyQRNG, + cloneQRNG, + + -- * Algorithms + niederreiter, + sobol, + halton, + reverseHalton, + maxDimension, + + ) where + +import Control.Monad +import Foreign +import Foreign.C.String +import Foreign.C.Types + +newtype QRNG = MkQRNG (ForeignPtr QRNG) +newtype QRNGType = MkQRNGType (Ptr QRNGType) + + +--------------------------- Initialization --------------------------------- + +-- | Allocate a new quasi-random number generator of the given type, +-- generating points with the given number of dimensions. +newQRNG :: QRNGType -> Int -> IO QRNG +newQRNG t dim = do + ptr <- gsl_qrng_alloc t (fromIntegral dim) + fptr <- newForeignPtr p_gsl_qrng_free ptr + return $! MkQRNG fptr + +foreign import ccall unsafe "gsl/gsl_qrng.h" + gsl_qrng_alloc :: QRNGType -> CUInt -> IO (Ptr QRNG) + +foreign import ccall unsafe "gsl/gsl_qrng.h &gsl_qrng_free" + p_gsl_qrng_free :: FunPtr (Ptr QRNG -> IO ()) + +-- | Reset the generator to the beginning of its sequence. +resetQRNG :: QRNG -> IO () +resetQRNG (MkQRNG fptr) = withForeignPtr fptr $ gsl_qrng_init + +foreign import ccall unsafe "gsl/gsl_qrng.h" + gsl_qrng_init :: Ptr QRNG -> IO () + + +--------------------------- Sampling --------------------------------------- + +-- | Stores the next point from the generator in the given buffer. The +-- space available in the buffer must match the dimension of the generator. +-- The components of the sample will each lie in the range (0,1). +getSample :: QRNG -> Ptr Double -> IO () +getSample (MkQRNG fptr) smplPtr = + withForeignPtr fptr $ \ptr -> + gsl_qrng_get ptr smplPtr >> (return ()) + +foreign import ccall unsafe "gsl/gsl_qrng.h" + gsl_qrng_get :: Ptr QRNG -> Ptr Double -> IO CInt + +-- | Gets the next sample point as a list. +getListSample :: QRNG -> IO [Double] +getListSample qrng = do + dim <- getDimension qrng >>= (return . fromIntegral) + allocaArray dim $ \ptr -> do + getSample qrng ptr + peekArray dim ptr + + +--------------------------- Auxiliary Functions ---------------------------- + +-- | Get the name of the generator. +getName :: QRNG -> IO String +getName (MkQRNG fptr) = + withForeignPtr fptr $ \ptr -> + peekCAString (gsl_qrng_name ptr) + +foreign import ccall unsafe "gsl/gsl_qrng.h" + gsl_qrng_name :: Ptr QRNG -> CString + +-- | The dimension of the sequence. +getDimension :: QRNG -> IO Int +getDimension (MkQRNG fptr) = + withForeignPtr fptr $ \ptr -> + gsl_qrng_get_dimension ptr >>= (return . fromIntegral) + +foreign import ccall unsafe + gsl_qrng_get_dimension :: Ptr QRNG -> IO CUInt + +-- | Get the size of the generator state, in bytes. +getSize :: QRNG -> IO Word64 +getSize (MkQRNG fptr) = + withForeignPtr fptr $ \ptr -> + (return . fromInteger . toInteger) (gsl_qrng_size ptr) + +foreign import ccall unsafe "gsl/gsl_qrng.h" + gsl_qrng_size :: Ptr QRNG -> CSize + +-- | Get the generator state. +getState :: QRNG -> IO [Word8] +getState qrng@(MkQRNG fptr) = do + n <- liftM (fromInteger . toInteger) (getSize qrng) + withForeignPtr fptr $ \ptr -> + peekArray n (gsl_qrng_state ptr) + +foreign import ccall unsafe "gsl/gsl_qrng.h" + gsl_qrng_state :: Ptr QRNG -> Ptr Word8 + +-- | Set the generator state. The input array should have size equal to +-- @getSize@ of the generator; otherwise, strange things will happen. +setState :: QRNG -> [Word8] -> IO () +setState (MkQRNG fptr) state = do + withForeignPtr fptr $ \ptr -> + pokeArray (gsl_qrng_state ptr) state + + +--------------------------- Copying state ----------------------------------- + +-- | @copyQRNG dst src@ copies the state from one generator to another. The +-- two generators must have the same type. +copyQRNG :: QRNG -> QRNG -> IO () +copyQRNG (MkQRNG fdst) (MkQRNG fsrc) = + withForeignPtr fdst $ \dst -> + withForeignPtr fsrc $ \src -> + gsl_qrng_memcpy dst src + +foreign import ccall unsafe "gsl/gsl_qrng.h" + gsl_qrng_memcpy :: Ptr QRNG -> Ptr QRNG -> IO () + +-- | Allocate a new quasi-random number generator that is exact copy of +-- another generator. +cloneQRNG :: QRNG -> IO QRNG +cloneQRNG (MkQRNG fptr) = + withForeignPtr fptr $ \ptr -> do + ptr' <- gsl_qrng_clone ptr + fptr' <- newForeignPtr p_gsl_qrng_free ptr' + ptr' `seq` return $! MkQRNG fptr' + +foreign import ccall unsafe "gsl/gsl_qrng.h" + gsl_qrng_clone :: Ptr QRNG -> IO (Ptr QRNG) + + +--------------------------- Algorithms -------------------------------------- + +niederreiter :: QRNGType +niederreiter = unsafePerformIO getNiederreiter + +sobol :: QRNGType +sobol = unsafePerformIO getSobol + +halton :: QRNGType +halton = unsafePerformIO getHalton + +reverseHalton :: QRNGType +reverseHalton = unsafePerformIO getReverseHalton + +getNiederreiter :: IO QRNGType +getNiederreiter = gsl_qrng_get_niederreiter_2 >>= (return . MkQRNGType) + +getSobol :: IO QRNGType +getSobol = gsl_qrng_get_sobol >>= (return . MkQRNGType) + +getHalton :: IO QRNGType +getHalton = gsl_qrng_get_halton >>= (return . MkQRNGType) + +getReverseHalton :: IO QRNGType +getReverseHalton = gsl_qrng_get_reversehalton >>= (return . MkQRNGType) + +foreign import ccall unsafe + gsl_qrng_get_niederreiter_2 :: IO (Ptr QRNGType) + +foreign import ccall unsafe + gsl_qrng_get_sobol :: IO (Ptr QRNGType) + +foreign import ccall unsafe + gsl_qrng_get_halton :: IO (Ptr QRNGType) + +foreign import ccall unsafe + gsl_qrng_get_reversehalton :: IO (Ptr QRNGType) + +-- | The maximum dimension of samples that the given generator supports. +maxDimension :: QRNGType -> Int +maxDimension = unsafePerformIO . getMaxDimension + +getMaxDimension :: QRNGType -> IO Int +getMaxDimension t = + gsl_qrng_get_max_dimension t >>= (return . fromIntegral) + +foreign import ccall unsafe + gsl_qrng_get_max_dimension :: QRNGType -> IO CUInt diff --git a/m4/ax_cblas.m4 b/m4/ax_cblas.m4 deleted file mode 100644 --- a/m4/ax_cblas.m4 +++ /dev/null @@ -1,172 +0,0 @@ -# =========================================================================== -# http://autoconf-archive.cryp.to/acx_blas.html -# =========================================================================== -# -# SYNOPSIS -# -# AX_CBLAS([ACTION-IF-FOUND[, ACTION-IF-NOT-FOUND]]) -# -# DESCRIPTION -# -# This macro looks for a library that implements the CBLAS linear-algebra -# interface (see http://www.netlib.org/blas/). On success, it sets the -# CBLAS_LIBS output variable to hold the requisite library linkages. -# -# To link with CBLAS, you should link with: -# -# $CBLAS_LIBS $LIBS -# -# in that order. -# -# Many libraries are searched for, from ATLAS to CXML to ESSL. The user -# may also use --with-cblas= in order to use some specific CBLAS -# library . -# -# ACTION-IF-FOUND is a list of shell commands to run if a BLAS library is -# found, and ACTION-IF-NOT-FOUND is a list of commands to run it if it is -# not found. If ACTION-IF-FOUND is not specified, the default action will -# define HAVE_BLAS. -# -# This macro requires autoconf 2.50 or later. -# -# LAST MODIFICATION -# -# 2008-12-29 -# -# COPYLEFT -# -# Copyright (c) 2008 Patrick O. Perry -# Copyright (c) 2008 Steven G. Johnson -# -# This program is free software: you can redistribute it and/or modify it -# under the terms of the GNU General Public License as published by the -# Free Software Foundation, either version 3 of the License, or (at your -# option) any later version. -# -# This program is distributed in the hope that it will be useful, but -# WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General -# Public License for more details. -# -# You should have received a copy of the GNU General Public License along -# with this program. If not, see . -# -# As a special exception, the respective Autoconf Macro's copyright owner -# gives unlimited permission to copy, distribute and modify the configure -# scripts that are the output of Autoconf when processing the Macro. You -# need not follow the terms of the GNU General Public License when using -# or distributing such scripts, even though portions of the text of the -# Macro appear in them. The GNU General Public License (GPL) does govern -# all other use of the material that constitutes the Autoconf Macro. -# -# This special exception to the GPL applies to versions of the Autoconf -# Macro released by the Autoconf Macro Archive. When you make and -# distribute a modified version of the Autoconf Macro, you may extend this -# special exception to the GPL to apply to your modified version as well. - -AC_DEFUN([AX_CBLAS], [ -AC_PREREQ(2.50) -ax_cblas_ok=no - -AC_ARG_WITH(cblas, - [AC_HELP_STRING([--with-cblas=], [use CBLAS library ])]) -case $with_cblas in - yes | "") ;; - no) ax_cblas_ok=disable ;; - -* | */* | *.a | *.so | *.so.* | *.o) CBLAS_LIBS="$with_cblas" ;; - *) CBLAS_LIBS="-l$with_cblas" ;; -esac - -ax_cblas_save_LIBS="$LIBS" - -# First, check CBLAS_LIBS environment variable -if test $ax_cblas_ok = no; then -if test "x$CBLAS_LIBS" != x; then - save_LIBS="$LIBS"; LIBS="$CBLAS_LIBS $LIBS" - AC_MSG_CHECKING([for cblas_dgemm in $CBLAS_LIBS]) - AC_TRY_LINK_FUNC(cblas_dgemm, [ax_cblas_ok=yes], [CBLAS_LIBS=""]) - AC_MSG_RESULT($ax_cblas_ok) - LIBS="$save_LIBS" -fi -fi - -# CBLAS linked to by default? (happens on some supercomputers) -if test $ax_cblas_ok = no; then - save_LIBS="$LIBS"; LIBS="$LIBS" - AC_CHECK_FUNC(cblas_dgemm, [ax_cblas_ok=yes]) - LIBS="$save_LIBS" -fi - -# BLAS in ATLAS library? (http://math-atlas.sourceforge.net/) -if test $ax_cblas_ok = no; then - AC_CHECK_LIB(atlas, ATL_xerbla, - [AC_CHECK_LIB(cblas, cblas_dgemm, - [ax_cblas_ok=yes - CBLAS_LIBS="-lcblas -latlas"], - [], [-latlas])]) -fi - -# BLAS in Intel MKL library? -if test $ax_cblas_ok = no; then - AC_CHECK_LIB(mkl, cblas_dgemm, [ax_cblas_ok=yes;CBLAS_LIBS="-lmkl"]) -fi - -# BLAS in Apple vecLib library? -if test $ax_cblas_ok = no; then - save_LIBS="$LIBS"; LIBS="-framework vecLib $LIBS" - AC_CHECK_FUNC(cblas_dgemm, [ax_cblas_ok=yes;CBLAS_LIBS="-framework vecLib"]) - LIBS="$save_LIBS" -fi - -# BLAS in Alpha DXML library? (now called CXML, see above) -if test $ax_cblas_ok = no; then - AC_CHECK_LIB(dxml, cblas_dgemm, [ax_cblas_ok=yes;CBLAS_LIBS="-ldxml"]) -fi - -# BLAS in Sun Performance library? -if test $ax_cblas_ok = no; then - if test "x$GCC" != xyes; then # only works with Sun CC - AC_CHECK_LIB(sunmath, acosp, - [AC_CHECK_LIB(sunperf, cblas_dgemm, - [CBLAS_LIBS="-xlic_lib=sunperf -lsunmath" - ax_cblas_ok=yes],[],[-lsunmath])]) - fi -fi - -# BLAS in SCSL library? (SGI/Cray Scientific Library) -if test $ax_cblas_ok = no; then - AC_CHECK_LIB(scs, cblas_dgemm, [ax_cblas_ok=yes; CBLAS_LIBS="-lscs"]) -fi - -# BLAS in SGIMATH library? -if test $ax_cblas_ok = no; then - AC_CHECK_LIB(complib.sgimath, cblas_dgemm, - [ax_cblas_ok=yes; CBLAS_LIBS="-lcomplib.sgimath"]) -fi - -# BLAS in IBM ESSL library? (requires generic BLAS lib, too) -if test $ax_cblas_ok = no; then - AC_CHECK_LIB(blas, cblas_dgemm, - [AC_CHECK_LIB(essl, cblas_dgemm, - [ax_cblas_ok=yes; CBLAS_LIBS="-lessl -lblas"], - [], [-lblas])]) -fi - -# Generic CBLAS library? -if test $ax_cblas_ok = no; then - AC_CHECK_LIB(cblas, cblas_dgemm, [ax_cblas_ok=yes; CBLAS_LIBS="-lcblas"]) -fi - -AC_SUBST(CBLAS_LIBS) - -LIBS="$ax_cblas_save_LIBS" - -# Finally, execute ACTION-IF-FOUND/ACTION-IF-NOT-FOUND: -if test x"$ax_cblas_ok" = xyes; then - ifelse([$1],,AC_DEFINE(HAVE_CBLAS,1,[Define if you have a CBLAS library.]),[$1]) - : -else - ax_cblas_ok=no - $2 -fi -])dnl AX_CBLAS diff --git a/m4/ax_gsl.m4 b/m4/ax_gsl.m4 deleted file mode 100644 --- a/m4/ax_gsl.m4 +++ /dev/null @@ -1,36 +0,0 @@ -# AX_GSL([ACTION-IF-FOUND],[ACTION-IF-NOT-FOUND]) -# ----------------------------------------------- - -AC_DEFUN([AX_GSL], [ -AC_REQUIRE([AX_CBLAS]) -ax_gsl_ok=no - -AC_ARG_WITH(gsl, - [AC_HELP_STRING([--with-gsl=], [use GSL library ])]) -case $with_gsl in - yes | "") ;; - no) ax_gsl_ok=disable ;; - -* | */* | *.a | *.so | *.so.* | *.o) GSL_LIBS="$with_gsl" ;; - *) GSL_LIBS="-l$with_gsl" ;; -esac - -AC_CHECK_LIB([m],[cos]) - -AX_CBLAS([], - [AC_CHECK_LIB([gslcblas],[cblas_dgemm], - [CBLAS_LIBS="-lgslcblas"])]) - -AC_CHECK_LIB([gsl],[gsl_blas_dgemm], - [ax_gsl_ok=yes; GSL_LIBS="-lgsl"], - [],$CBLAS_LIBS) - -AC_SUBST(GSL_LIBS) - -if test x"$ax_gsl_ok" = xyes; then -ifelse([$1],,AC_DEFINE(HAVE_GSL,1,[Define if you have GSL library.]),[$1]) - : -else - ax_gsl_ok=no - $2 -fi -])dnl AX_GSL