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dnl Process this file with autoconf to produce a configure script.
AC_INIT(netlist.h)
AC_CONFIG_HEADER(config.h)
AC_CONFIG_HEADER(_pli_types.h)

AC_CANONICAL_HOST
dnl Checks for programs.
AC_PROG_CC
AC_PROG_CXX
AC_CHECK_TOOL(STRIP, strip, true)
AC_CHECK_PROGS(XGPERF,gperf,none)
if test "$XGPERF" = "none"
then
echo ""
        echo "*** Warning: No suitable gperf found. ***"
echo " The gperf package is essential for building ivl from"
echo " CVS sources, or modifying the parse engine of ivl itself."
echo " You can get away without it when simply building from"
echo " snapshots or major releases."
echo ""
fi

AC_CHECK_PROGS(LEX,flex,none)
if test "$LEX" = "none"
then
echo "*** Error: No suitable flex found. ***"
        echo " Please install the 'flex' package."
        exit 1
fi

AC_CHECK_PROGS(YACC,bison,none)
if test "$YACC" = "none"
then
echo "*** Error: No suitable bison found. ***"
        echo " Please install the 'bison' package."
        exit 1
fi

AC_EXEEXT
AC_SUBST(EXEEXT)

# Combined check for Microsoft-related bogosities; sets WIN32 if found
AX_WIN32

# vvp32 is by default disabled
#enable_vvp32=no
AC_SUBST(enable_vvp32)


AC_LANG_CPLUSPLUS

AC_CHECK_HEADERS(getopt.h malloc.h inttypes.h libiberty.h iosfwd sys/wait.h)

AC_CHECK_LIB(z, gzwrite)
AC_CHECK_LIB(z, gzwrite, HAVE_LIBZ=yes, HAVE_LIBZ=no)
AC_SUBST(HAVE_LIBZ)
if test "$WIN32" = "yes"; then
AC_CHECK_LIB(bz2, main)
else
AC_CHECK_LIB(bz2, BZ2_bzdopen)
fi

AC_MSG_CHECKING(for sys/times)
AC_TRY_LINK(
#include <unistd.h>
#include <sys/times.h>
,{clock_t a = times(0)/sysconf(_SC_CLK_TCK);},
do_times=yes
AC_DEFINE(HAVE_TIMES,1),
do_times=no
)
AC_MSG_RESULT($do_times)

# --
# Look for a dl library to use. First look for the standard dlopen
# functions, and failing that look for the HP specific shl_load function.

AC_CHECK_HEADERS(dlfcn.h dl.h, break)

DLLIB=''
AC_CHECK_LIB(dl,dlopen,[DLLIB=-ldl])
if test -z "$DLLIB" ; then
AC_CHECK_LIB(dld,shl_load,[DLLIB=-ldld])
fi
AC_SUBST(DLLIB)

AC_PROG_INSTALL

AC_LANG_C
AC_C_BIGENDIAN

# $host

AX_LD_EXTRALIBS

# Compiler option for position independent code, needed whan making shared objects.
# CFLAGS inherited by cadpli/Makefile?
AX_C_PICFLAG

# may modify CPPFLAGS and CFLAGS
AX_CPP_PRECOMP

# Linker option used when compiling the target
AX_LD_RDYNAMIC

# linker options when building a shared library
AX_LD_SHAREDLIB_OPTS

#######################
## test for underscores. The vpi module loader needs to know this
## in order to know the name of the start symbol for the .vpi module.
#######################

AX_C_UNDERSCORES_LEADING
AX_C_UNDERSCORES_TRAILING

#######################
## end of test for underscores
#######################

AX_CPP_IDENT

# If not otherwise specified, set the libdir64 variable
# to the same as libdir.
AC_MSG_CHECKING(for libdir64 path)
if test x${libdir64} = x
then
libdir64="${libdir}"
fi
AC_SUBST(libdir64)
AC_MSG_RESULT(${libdir64})

# where to put vpi subdirectories
AC_MSG_CHECKING(for VPI subdirectories)
if test x${vpidir1} = x
then
vpidir1="."
fi

AC_SUBST(vpidir1)
AC_SUBST(vpidir2)
AC_MSG_RESULT(${vpidir1} ${vpidir2})

# XXX disable tgt-fpga for the moment
AC_CONFIG_SUBDIRS(vvp vpi tgt-stub tgt-null tgt-vvp libveriuser cadpli)

AC_OUTPUT(Makefile ivlpp/Makefile driver/Makefile driver-vpi/Makefile tgt-null/Makefile tgt-verilog/Makefile tgt-pal/Makefile)
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