AC_DEFUN(AC_ENABLE_DEBUG,
[
AC_ARG_ENABLE(debug,        [  --enable-debug          enable debug symbols in library],
[
if test "$enableval" = yes; then
  enable_debug=-g;
  AC_SUBST(enable_debug)
fi])
])

AC_DEFUN(AC_ENABLE_OPTIMIZATION,
[
AC_ARG_ENABLE(optimization, [  --enable-optimization   enable optimization],
[
if test "$enableval" = yes; then
  enable_optimization='-O3 -funroll-loops -fomit-frame-pointer';
  AC_SUBST(enable_optimization)
fi])
])

AC_DEFUN(AC_LEM_DATADIR,
[dnl
AC_ARG_WITH(datadir, [  --with-datadir[=path]   set dictionary directories], lem_datadir="$withval", lem_datadir="")
AC_SUBST(lem_datadir)
])

AC_DEFUN(AC_PCRE_INCLUDES,
[dnl
AC_ARG_WITH(pcre-includes, [  --with-pcre-includes[=path]   use Perl Compatible Regular Expressions includes from path], pcre_includes="$withval", pcre_includes="")
AC_MSG_CHECKING(for PCRE includes)
if test x$pcre_includes = x ; then
    for p in /usr/include /usr/include/pcre /usr/local/include /opt/include /usr/local/pcre/include; do
        if test -f "$p/pcre.h" ; then
            pcre_includes="$p"
        fi
    done
fi
if test x$pcre_includes = x ; then
    AC_MSG_ERROR(PCRE headers not found)
fi
AC_SUBST(pcre_includes)
AC_MSG_RESULT(found in $pcre_includes)
])


AC_DEFUN(AC_PCRE_LIBS,
[dnl
AC_ARG_WITH(pcre-libs, [  --with-pcre-libs[=path]   use Perl Compatible Regular Expressions libraries from path], pcre_libs="$withval", pcre_libs="")
AC_MSG_CHECKING(for PCRE libraries)
if test x$pcre_libs = x ; then
    for p in /lib /usr/lib /usr/local/lib /opt/lib /usr/local/pcre/libexec; do
        if test -f "$p/libpcre.so" ; then
            pcre_libs="$p"
        fi
    done
fi
if test x$pcre_libs = x ; then
    AC_MSG_ERROR(PCRE libraries not found)
fi
AC_SUBST(pcre_libs)
AC_MSG_RESULT(found in $pcre_libs)
])