configure.ac

AC_INIT([libgerlumph], [0.1], [gvernard@astro.rug.nl])
AC_LANG(C++)
AC_CONFIG_AUX_DIR(aux-dist)
AM_INIT_AUTOMAKE([foreign subdir-objects])
AC_CONFIG_MACRO_DIRS([m4])
AC_PREFIX_DEFAULT($PWD)

AC_PROG_CXX

LT_INIT([disable-static])



##########################################################################
ac_new_CPPFLAGS="-Iinclude"
ac_new_LDFLAGS=""
ac_new_LIBS=""

AC_ARG_WITH([fftw3],
    [AS_HELP_STRING([--with-fftw3=prefix],[give the path to the fftw3 library and header files.])],
    [
	ac_new_CPPFLAGS+=" -I${withval}/include"
	ac_new_LDFLAGS+=" -L${withval}/lib -Wl,-rpath -Wl,${withval}/lib"
	ac_new_LIBS+=" -lfftw3"
    ],
    [
	AC_CHECK_LIB(fftw3,main,[],[AC_MSG_ERROR("you need to have the fftw3 library installed.")])
	AC_CHECK_HEADERS(fftw3.h,[],[AC_MSG_ERROR("you need to have the fftw3 header files installed.")])
    ])

AC_ARG_WITH([CCfits],
    [AS_HELP_STRING([--with-CCfits=prefix],[give the path to the CCfits library and header files.])],
    [
	ac_new_CPPFLAGS+=" -I${withval}/include"
	ac_new_LDFLAGS+=" -L${withval}/lib -Wl,-rpath -Wl,${withval}/lib"
	ac_new_LIBS+=" -lCCfits"
    ],
    [
	AC_CHECK_LIB(CCfits,main,[],[AC_MSG_ERROR("you need to have the CCfits library installed.")],[-lcfitsio])
	AC_CHECK_HEADERS(CCfits/CCfits.h,[],[AC_MSG_ERROR("you need to have the CCfits header files installed.")])
    ])

AC_ARG_WITH([cfitsio],
    [AS_HELP_STRING([--with-cfitsio=prefix],[give the path to the cfitsio library and header files.])],
    [
	ac_new_CPPFLAGS+=" -I${withval}/include"
	ac_new_LDFLAGS+=" -L${withval}/lib -Wl,-rpath -Wl,${withval}/lib"
	ac_new_LIBS+=" -lcfitsio"
    ],
    [
	AC_CHECK_LIB(cfitsio,main,[],[AC_MSG_ERROR("you need to have the cfitsio library installed.")])
	AC_CHECK_HEADERS(fitsio.h,[],[AC_MSG_ERROR("you need to have the cfitsio header files installed.")])
    ])

AC_ARG_WITH([png],
    [AS_HELP_STRING([--with-png=prefix],[give the path to the png library and header files.])],
    [
	ac_new_CPPFLAGS+=" -I${withval}/include"
	ac_new_LDFLAGS+=" -L${withval}/lib -Wl,-rpath -Wl,${withval}/lib"
	ac_new_LIBS+=" -lpng"
    ],
    [
	AC_CHECK_LIB(png,main,[],[AC_MSG_ERROR("you need to have the png library installed.")])
	AC_CHECK_HEADERS(png.h,[],[AC_MSG_ERROR("you need to have the png header files installed.")])
    ])

CPPFLAGS+="$ac_new_CPPFLAGS"
LDFLAGS+="$ac_new_LDFLAGS"
LIBS+="$ac_new_LIBS"

AC_SUBST([CPPFLAGS])
AC_SUBST([LDFLAGS])
AC_SUBST([LIBS])
##########################################################################


##########################################################################
AC_ARG_WITH([map-path],
    [AS_HELP_STRING([--with-map-path=prefix],[give the path to the gerlumph maps])],
    [MAP_PATHSET=1],
    [MAP_PATHSET=0])
	
# if optional parameter used, extend path flags for compliler and linker
if test $MAP_PATHSET = 1 ; then
    MAP_PATH="$with_map_path"
else
    AC_MSG_ERROR([You need to provide the MAP_PATH to comile the gerlumph++ library!])
fi

AC_SUBST([MAP_PATH])
##########################################################################


##########################################################################
AC_ARG_ENABLE([gpu],
	[AS_HELP_STRING([--enable-gpu],[replace convolutions on the CPU (fftw) by the GPU (cufft)])],
	[
	if test "$enable_gpu" = "no"; then
	   GPU_SET=0
	else
	   GPU_SET=1
	fi
	],
	[GPU_SET=0])
AM_CONDITIONAL([WITH_GPU], [test $GPU_SET = 1])
    
CUDA_CFLAGS="-std=c++11 --compiler-options '-fPIC' -Wno-deprecated-gpu-targets"
CUDA_LIBS="-lcudart -lcufft"
NVCC="nvcc"

AC_SUBST(CUDA_CFLAGS)
AC_SUBST(CUDA_LIBS)
AC_SUBST(NVCC)
##########################################################################


AC_CONFIG_FILES([Makefile])

AC_OUTPUT