dnl Check for data types which are needed by the hash function
dnl (golden_ratio_hash).
-AC_CHECK_SIZEOF(long, 4)
-AC_CHECK_SIZEOF(long long, 8)
-AC_CHECK_SIZEOF(long double, 12)
+AC_CHECK_SIZEOF(int)
+AC_CHECK_SIZEOF(long)
+AC_CHECK_SIZEOF(long long)
+AC_CHECK_SIZEOF(long double)
+AC_CHECK_SIZEOF(void *)
dnl Switch to C++ language mode for the following libraries and headers.
AC_LANG([C++])
dnl Documentation needs only be built when extending it, so never mind if it
dnl cannot find those helpers:
AC_PATH_PROG(DOXYGEN, doxygen, "")
+AM_CONDITIONAL(CONFIG_DOXYGEN, [test ! -z "$DOXYGEN"])
AC_PATH_PROG(LATEX, latex, "")
AC_PATH_PROG(PDFLATEX, pdflatex, "")
AC_PATH_PROG(MAKEINDEX, makeindex, "")
AC_PATH_PROG(DVIPS, dvips, "")
+AM_CONDITIONAL(CONFIG_TEX, [test ! \( -z "$LATEX" -o -z $"PDFLATEX" -o -z "$MAKEINDEX" -o -z "$DVIPS" \)])
AC_PATH_PROG(FIG2DEV, fig2dev, "")
+AM_CONDITIONAL(CONFIG_FIG2DEV, [test ! -z "$FIG2DEV"])
dnl Output makefiles etc.
AC_CONFIG_FILES([