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# CVC4_CHECK_FOR_CADICAL
# ------------------
# Look for CaDiCaL and link it in, but only if user requested.
AC_DEFUN([CVC4_CHECK_FOR_CADICAL], [
AC_MSG_CHECKING([whether user requested CaDiCaL support])
have_libcadical=0
CADICAL_LIBS=
CADICAL_LDFLAGS=
have_libcadical=0
if test "$with_cadical" = no; then
AC_MSG_RESULT([no, CaDiCaL disabled by user])
elif test -n "$with_cadical"; then
AC_MSG_RESULT([yes, CaDiCaL requested by user])
AC_ARG_VAR(CADICAL_HOME, [path to top level of CaDiCaL source tree])
AC_ARG_WITH(
[cadical-dir],
AS_HELP_STRING(
[--with-cadical-dir=PATH],
[path to top level of CaDiCaL source tree]
),
CADICAL_HOME="$withval",
[ if test -z "$CADICAL_HOME" && ! test -e "$ac_abs_confdir/cadical/build/libcadical.a"; then
AC_MSG_FAILURE([must give --with-cadical-dir=PATH, define environment variable CADICAL_HOME, or use contrib/get-cadical to setup CaDiCaL for CVC4!])
fi
]
)
# Check if CaDiCaL was installed via contrib/get-cadical
AC_MSG_CHECKING([whether CaDiCaL was already installed via contrib/get-cadical])
if test -z "$CADICAL_HOME" && test -e "$ac_abs_confdir/cadical/build/libcadical.a"; then
CADICAL_HOME="$ac_abs_confdir/cadical"
AC_MSG_RESULT([yes, $CADICAL_HOME])
else
AC_MSG_RESULT([no])
fi
if ! test -d "$CADICAL_HOME" || ! test -e "$CADICAL_HOME/build/libcadical.a" ; then
AC_MSG_FAILURE([either $CADICAL_HOME is not a CaDiCaL source tree or it's not yet built $CADICAL_HOME/build/libcadical.a])
fi
AC_MSG_CHECKING([how to link CaDiCaL])
CVC4_TRY_CADICAL
if test -z "$CADICAL_LIBS"; then
AC_MSG_FAILURE([cannot link against libcadical!])
else
AC_MSG_RESULT([$CADICAL_LIBS])
have_libcadical=1
fi
CADICAL_LDFLAGS="-L$CADICAL_HOME/build"
else
AC_MSG_RESULT([no, user didn't request CaDiCaL])
with_cadical=no
fi
])# CVC4_CHECK_FOR_CADICAL
# CVC4_TRY_CADICAL
# ------------------------------
# Try AC_CHECK_LIB(cadical) with the given linking libraries
AC_DEFUN([CVC4_TRY_CADICAL], [
if test -z "$CADICAL_LIBS"; then
AC_LANG_PUSH([C++])
cvc4_save_LIBS="$LIBS"
cvc4_save_LDFLAGS="$LDFLAGS"
cvc4_save_CPPFLAGS="$CPPFLAGS"
LDFLAGS="-L$CADICAL_HOME/build"
CPPFLAGS="$CPPFLAGS -I$CADICAL_HOME/src"
LIBS="-lcadical"
AC_LINK_IFELSE(
[AC_LANG_PROGRAM([[#include <cadical.hpp>]],
[[CaDiCaL::Solver test();]])], [CADICAL_LIBS="-lcadical"],
[CADICAL_LIBS=])
LDFLAGS="$cvc4_save_LDFLAGS"
CPPFLAGS="$cvc4_save_CPPFLAGS"
LIBS="$cvc4_save_LIBS"
AC_LANG_POP([C++])
fi
])# CVC4_TRY_CADICAL
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