configure.ac

dnl
dnl configure.in
dnl 
dnl SMO - Storage Optimizer (experimental)
dnl 
dnl Copyright (C) 2014-2016 Somashekaracharya G B
dnl
dnl See file LICENSE
dnl

AC_PREREQ(2.13)

AC_INIT(smo, 0.1, [violinholmes@gmail.com])
AC_CONFIG_AUX_DIR([.])
AC_CONFIG_MACRO_DIR([m4])

AM_INIT_AUTOMAKE()
dnl AM_SILENT_RULES([yes])
AM_CONFIG_HEADER(config.h)

dnl clan, candl, cloog are all configured with 64-bit data type support
dnl NOTE: configuring these 64-bit data type support has nothing to do with arch
dnl being 32-bit/64-bit
CFLAGS="$CLAGS -Wall"
if test CC = icc; then
    LDFLAGS="$LDFLAGS -lirc -limf"
fi

debug="false"
dnl debugging flag
AC_ARG_ENABLE(debug,
              [  --enable-debug  enable compilation with debugging info ],
              debug="true")

if test $debug = "true"; then
    CFLAGS="$CFLAGS -g -DDEBUG"
fi

dnl check for programs
AC_CHECK_PROG(CC,gcc,gcc)
AC_PROG_CXX
dnl AC_CHECK_PROG(CXX,g++,g++)
AC_CHECK_PROG(LD,ld,ld)
AC_PROG_INSTALL
AC_PROG_LN_S
AC_PROG_LIBTOOL

dnl check for some compiler characteristics
dnl MC_CHECK_GUIDING_DECLS
AC_SUBST(GUIDING_DECLS)

dnl check for typedefs, structures, compiler features
AC_C_CONST

AC_CHECK_HEADERS(math.h stdlib.h stdio.h assert.h string.h)

dnl set SOURCE_DIR to current directory
SOURCE_DIR=`pwd`
AC_SUBST(SOURCE_DIR)

AC_CHECK_PROG(CP,cp,cp)
AC_CHECK_PROG(RM,rm,rm -f)
AC_CHECK_PROG(MV,mv,mv)
AC_CHECK_PROG(CAT,cat,cat)
AC_CHECK_PROG(AR,ar,ar)
AC_CHECK_PROG(STRIP,strip,strip)
AC_CHECK_PROG(SED,sed,sed)

dnl Offer --with-gmp-prefix.
AC_ARG_WITH(gmp-prefix,
            AC_HELP_STRING([--with-gmp-prefix=DIR],
                           [DIR Location of GMP package]),
                           [CPPFLAGS="${CPPFLAGS} -I$withval/include";
                            LDFLAGS="${LDFLAGS} -L$withval/lib";
                            LIBS="-lgmp $LIBS";
                            GMP_PREFIX="$withval";
                            ])

AC_CHECK_HEADER(gmp.h,
                [AC_CHECK_LIB(gmp,main,
                 [poly_cv_gmpfatal="no"],
                 [poly_cv_gmpfatal="yes"])],
                 [poly_cv_gmpfatal="yes"])

dnl Request arch flag
ARCHGIVEN="false"
AC_ARG_WITH(gcc-arch,
			AC_HELP_STRING([--with-gcc-arch=ARCH],
						   [ARCH Architecture to compile smo for (march, mcpu etc.]),
						   [ARCHGIVEN="true";
						   ARCH="$withval";])
	
archopts=""
if test $ARCHGIVEN = "true"; then
    archopts="--with-gcc-arch=$ARCH"
fi
						   
if test "$poly_cv_gmpfatal" = "yes"; then
    AC_MSG_ERROR([GMP not found])
    else
        AC_CHECK_DECLS(mp_get_memory_functions,[],[
                                                AC_LIBOBJ(mp_get_memory_functions)
                                                ],[#include <gmp.h>
                                                   ])
        fi



AC_SUBST(ISL_INCLUDE)
AC_SUBST(ISL_LDFLAGS)
AC_SUBST(ISL_LIBADD)

dnl Provide --with-isl-prefix
AC_ARG_WITH(isl-prefix,
            AC_HELP_STRING([--with-isl-prefix=DIR],
              	             [DIR location where isl is installed]),
              [isl_prefix=$withval;
               ISL_INCLUDE="-I$withval/include";
               ISL_LDFLAGS="-L$withval/lib";
               ISL_LIBADD="$withval/lib/libisl.la";
               external_isl=true
               ],
              [external_isl=false])
AM_CONDITIONAL(EXTERNAL_ISL, test x$external_isl = xtrue)

if test x$external_isl = xfalse; then
dnl Configuring isl
dnl the current isl submodule still supports the piplib
dnl options, but the trunk of isl doesn't
echo ""
echo "======================"
echo "Configuring isl"
echo "======================"
configureopts="--with-gmp=system \
--with-gmp-prefix=$GMP_PREFIX \
--with-gmp-exec-prefix=$GMP_PREFIX \
--with-piplib=no \
--prefix=$prefix"
(cd isl/
 ./configure ${configureopts} ${archopts}
)
fi

dnl Offer --with-clang-prefix
AC_ARG_WITH(clang-prefix,
    AC_HELP_STRING([--with-clang-prefix=DIR], [DIR location of clang install]),
    [
        CLANG_PREFIX="$withval";
        external_clang=true
    ],
    [external_clang=false]
)

AM_CONDITIONAL(EXTERNAL_CLANG, test x$external_clang = xtrue)

dnl Configure PET
echo -e "\n=========================="
echo "Configuring PET"
echo "=========================="

if test x$external_clang = xtrue; then
    configureopts="CXXFLAGS=-fno-rtti --with-clang-prefix=$CLANG_PREFIX --with-clang-exec-prefix=$CLANG_PREFIX --with-isl-builddir=../isl --prefix=$prefix"
else
    configureopts="CXXFLAGS=-fno-rtti --with-isl-builddir=../isl --prefix=$prefix"
fi

(cd pet && ./configure ${configureopts})


AC_PATH_PROGS(BASH, bash)

AC_CONFIG_FILES([getversion.sh], [chmod +x ./getversion.sh])
AC_CONFIG_COMMANDS([version.h],
                   [echo '#define SMO_VERSION "'`./getversion.sh`'"' > src/version.h])

AC_OUTPUT(Makefile \
          src/Makefile \
          )

echo " /*-----------------------------------------------*"
echo "  *           SMO configuration is OK             *"
echo "  *-----------------------------------------------*/"
echo "Your system is ready to compile SMO"
echo "Run 'make' next to compile"
echo "Use src/smo (see README)"