#                                               -*- Autoconf -*-
# Process this file with autoconf to produce a configure script.

AC_PREREQ(2.59)
AC_INIT([XQilla],[1.0],[])
AC_CONFIG_AUX_DIR(autotools)
AC_CANONICAL_TARGET([])
AM_INIT_AUTOMAKE(XQilla, 1.0,)
AC_CONFIG_SRCDIR([src/runtime/Result.cpp])
AC_CONFIG_HEADERS([src/config/xqilla_config_unix.h])

# Check debug option
AC_MSG_CHECKING(if --enable-debug option specified)
AC_ARG_ENABLE(debug,
        [AS_HELP_STRING(--enable-debug,Build a debugging version.)],
        [xqilla_cv_debug="$enable_debug"], [xqilla_cv_debug="no"])
AC_MSG_RESULT($xqilla_cv_debug)

# Don't override anything if it's already set from the environment.
optimize_def="-O"
case $host_os in
aix4.3.*|aix5*)
        optimize_def="-O2"
        CC=${CC-"xlc_r"}
        CPPFLAGS="$CPPFLAGS -D_THREAD_SAFE"
        LDFLAGS="$LDFLAGS -Wl,-brtl";;
bsdi3*) CC=${CC-"shlicc2"}
        LIBS="$LIBS -lipc";;
cygwin*)
        CPPFLAGS="$CPPFLAGS -D_GNU_SOURCE -D_REENTRANT";;
freebsd*)
        CPPFLAGS="$CPPFLAGS -D_THREAD_SAFE"
        LDFLAGS="$LDFLAGS -pthread";;
gnu*|k*bsd*-gnu|linux*)
        optimize_def="-O2"
        CPPFLAGS="$CPPFLAGS -D_GNU_SOURCE -D_REENTRANT";;
hpux*)  CPPFLAGS="$CPPFLAGS -D_REENTRANT";;
irix*)  optimize_def="-O2"
        CPPFLAGS="$CPPFLAGS -D_SGI_MP_SOURCE";;
mpeix*) CPPFLAGS="$CPPFLAGS -D_POSIX_SOURCE -D_SOCKET_SOURCE"
        LIBS="$LIBS -lsocket -lsvipc";;
osf*)   CPPFLAGS="$CPPFLAGS -pthread";;
*qnx*)  AC_DEFINE(HAVE_QNX)
        AH_TEMPLATE(HAVE_QNX, [Define to 1 if building on QNX.]);;
solaris*)
        CPPFLAGS="$CPPFLAGS -D_REENTRANT";;
esac

# Set CFLAGS/CXXFLAGS.  We MUST set the flags before we call autoconf
# compiler configuration macros, because if we don't, they set CFLAGS
# to no optimization and -g, which isn't what we want.
if test "$xqilla_cv_debug" = "yes"; then
        AC_DEFINE(DEBUG)
        AH_TEMPLATE(DEBUG, [Define to 1 if you want a debugging version.])
        
        CFLAGS="$CFLAGS -g"
        CXXFLAGS="$CXXFLAGS -g"
else
	CFLAGS=${CFLAGS-$optimize_def}
	CXXFLAGS=${CXXFLAGS-"$CFLAGS"}
fi

# Check Xerces library name
AC_MSG_CHECKING([if --with-xerces=DIR option specified])
AC_ARG_WITH(xerces,
        [AS_HELP_STRING(--with-xerces=DIR,Path of Xerces. [DIR="../xerces-c-src"])],
        [with_xerces="$withval"], [with_xerces="no"])
AC_MSG_RESULT($with_xerces)
if test "$with_xerces" = "no"; then
        with_xerces="/usr/local"
fi
if test `ls $with_xerces/lib/libxerces-c.*2[[6-7]].* 2>/dev/null | wc -l` -gt 0 ; then
        AC_MSG_CHECKING([for Xerces C++ version from source tree])
        xerces_version=`ls "$with_xerces"/lib/libxerces-c.*[[0-9]][[0-9]].* | tail -1 | sed 's/.*xerces-c.*\([[0-9]]\)\([[0-9]]\).*/\1.\2/'`
        AC_MSG_RESULT([$xerces_version])
        xerces_lib="$with_xerces/lib"
        xerces_include="$with_xerces/src"
        xerces_library="xerces-c"
elif test `ls $with_xerces/lib/libxerces-c*2[[6-7]].* 2>/dev/null | wc -l` -gt 0 ; then
        AC_MSG_CHECKING([for Xerces C++ version from source tree])
        xerces_version=`ls "$with_xerces"/lib/libxerces-c*[[0-9]][[0-9]].* | tail -1 | sed 's/.*xerces-c*\([[0-9]]\)\([[0-9]]\).*/\1.\2/'`
        AC_MSG_RESULT([$xerces_version])
        xerces_lib="$with_xerces/lib"
        xerces_include="$with_xerces/src"
        xerces_library="xerces-c"
else
        AC_MSG_ERROR([Xerces-C++ is required to build XQuery.  $with_xerces not a valid, supported Xerces tree.  You must specify the path where Xerces is installed with --with-xerces.])
fi
AC_SUBST(xerces_include)
AC_SUBST(xerces_lib)

# Checks for programs.
AC_PROG_CXX
AC_PROG_CC
AC_PROG_LIBTOOL
AC_PROG_CPP
AC_PROG_INSTALL
AC_PROG_LN_S
AC_PROG_MAKE_SET
#AC_PROG_RANLIB
AC_PROG_YACC
AM_PROG_LEX

# Check for unicode support in flex
AC_MSG_CHECKING([unicode support in flex])
flex --help | grep "\-U" > /dev/null
if test "$?" -eq "0"
	then AC_MSG_RESULT([found])
        else AC_MSG_WARN([not found. XQilla requires a version of flex supporting the -U (16-bit unicode) flag if you need to rebuild the lexer.])
fi

# Set up extra compiler flags for GCC
if test "$GXX" = "yes"; then
  if test "$xqilla_cv_debug" = "yes"; then
    CXXFLAGS="$CXXFLAGS -Wall -ftemplate-depth-50 ${targetoptions}"
    CFLAGS="$CFLAGS -Wall ${targetoptions}"
  else
    CXXFLAGS="$CXXFLAGS -ftemplate-depth-50 ${targetoptions}"
    CFLAGS="$CFLAGS ${targetoptions}"
  fi
fi

# Checks for libraries.
AC_CHECK_LIB(pthread,pthread_create)
AC_CHECK_LIB(socket,connect)
AC_CHECK_LIB(nsl,gethostbyname)

# Checks for header files.
AC_FUNC_ALLOCA
AC_HEADER_STDC
AC_CHECK_HEADERS([limits.h malloc.h stddef.h stdlib.h string.h sys/time.h sys/timeb.h wchar.h])

# Checks for typedefs, structures, and compiler characteristics.
AC_HEADER_STDBOOL
AC_C_CONST
AC_C_INLINE
AC_TYPE_SIZE_T
AC_HEADER_TIME
AC_STRUCT_TM
AC_CHECK_TYPES([ptrdiff_t])

# Checks for library functions.
AC_FUNC_ERROR_AT_LINE
AC_FUNC_MKTIME
AC_CHECK_FUNCS([floor ftime gettimeofday memmove memset pow sqrt strchr strstr tzset])

AC_CONFIG_FILES([Makefile include/Makefile])
AC_OUTPUT