From e8de27710cf8786fd2f09e22e209fa61eb72cb2c Mon Sep 17 00:00:00 2001
From: Willem Jan Palenstijn <Willem.Jan.Palenstijn@cwi.nl>
Date: Wed, 25 Feb 2015 10:43:43 +0100
Subject: Clean up configure check for nvcc

---
 build/linux/configure.ac | 45 +++++++++++++++++++--------------------------
 1 file changed, 19 insertions(+), 26 deletions(-)

diff --git a/build/linux/configure.ac b/build/linux/configure.ac
index a33b0bc..bf033f4 100644
--- a/build/linux/configure.ac
+++ b/build/linux/configure.ac
@@ -92,48 +92,41 @@ else
   AC_MSG_RESULT([yes, libboost_unit_test_framework-mt])
   LIBS_BOOSTUTF="-lboost_unit_test_framework-mt"
 fi
-# TODO: do something with the result
 
 
 # nvcc, cuda
 
 AC_ARG_WITH(cuda, [[  --with-cuda=path        path of CUDA SDK (optional)]],,)
 
-NVCC_PATH=$PATH
-if test x"$with_cuda" != x; then
-  NVCC_PATH="$with_cuda/bin:$NVCC_PATH"
+if test x"$with_cuda" != xno; then
+  NVCC_PATH=$PATH
+  if test x"$with_cuda" != x -a x"$with_cuda" != xyes; then
+    NVCC_PATH="$with_cuda/bin:$NVCC_PATH"
+  fi
+  AC_PATH_PROG([NVCC], [nvcc], [no], [$NVCC_PATH])
+else
+  NVCC=no
 fi
-AC_PATH_PROG([NVCC], [nvcc], [no], [$NVCC_PATH])
-# TODO: do something with the result
 
 HAVECUDA=no
 if test x"$NVCC" != xno; then
   HAVECUDA=yes
   BACKUP_CUDA_LDFLAGS="$LDFLAGS"
-  if test x"$with_cuda" != x; then
-    LDFLAGS_CUDA="-L$with_cuda/lib"
+  if test x"$with_cuda" != x -a x"$with_cuda" != xyes; then
+    case $host_cpu in
+    x86_64)
+      LDFLAGS_CUDA="-L$with_cuda/lib64"
+      ;;
+    *)
+      LDFLAGS_CUDA="-L$with_cuda/lib"
+      ;;
+    esac
     CPPFLAGS_CUDA="-I$with_cuda/include"
     LDFLAGS="$LDFLAGS $LDFLAGS_CUDA"
   fi
   AC_CHECK_LIB(cudart,cudaMalloc, ,HAVECUDA=no)
   AC_CHECK_LIB(cufft,cufftPlan1d, ,HAVECUDA=no)
 
-  if test x"$HAVECUDA" = xno; then
-    # try lib64 instead of lib
-
-    HAVECUDA=yes
-    LDFLAGS="$BACKUP_CUDA_LDFLAGS"
-
-    # prevent cached values from being used
-    unset ac_cv_lib_cudart_cudaMalloc
-    unset ac_cv_lib_cufft_cufftPlan1d
-
-    LDFLAGS_CUDA="-L$with_cuda/lib64"
-    LDFLAGS="$LDFLAGS $LDFLAGS_CUDA"
-    AC_CHECK_LIB(cudart,cudaMalloc, ,HAVECUDA=no)
-    AC_CHECK_LIB(cufft,cufftPlan1d, ,HAVECUDA=no)
-  fi
-
   LDFLAGS="$BACKUP_CUDA_LDFLAGS"
   unset BACKUP_CUDA_LDFLAGS
   # TODO: check for cuda headers?
@@ -142,11 +135,11 @@ if test x"$NVCC" != xno; then
 fi
 
 NVCCFLAGS=""
-AC_MSG_CHECKING([if nvcc works])
 if test x"$HAVECUDA" = xyes; then
+  AC_MSG_CHECKING([if nvcc works])
   ASTRA_CHECK_NVCC(HAVECUDA,NVCCFLAGS)
+  AC_MSG_RESULT($HAVECUDA)
 fi
-AC_MSG_RESULT($HAVECUDA)
 
 AC_ARG_WITH(cuda_compute, [[  --with-cuda-compute=archs  comma separated list of CUDA compute models (optional)]],,)
 if test x"$HAVECUDA" = xyes; then
-- 
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