[LIBS="-lcln"
case "${ac_cv_header_cln_cln_h}" in
"yes")
- AC_TRY_LINK([#include <cln/cln.h>],
+ AC_TRY_LINK([#include <cln/cl_integer.h>],
[doublefactorial(2);],
ginac_cv_lib_cln_link="-lcln",
ginac_cv_lib_cln_link="fail")
;;
*)
- AC_TRY_LINK([#include <cln.h>],
+ AC_TRY_LINK([#include <cl_integer.h>],
[doublefactorial(2);],
ginac_cv_lib_cln_link="-lcln",
ginac_cv_lib_cln_link="fail")
"fail")
LIBS="${saved_LIBS}"
AC_MSG_RESULT([no])
- AC_MSG_ERROR([You either need to set \$LDFLAGS or update CLN])
- ;;
-dnl should never ever get here:
- *)
- LIBS="${saved_LIBS}"
- AC_MSG_WARN([you found a bug in the configure script!])
+ GINAC_ERROR([I could not successfully link a test-program against libcln.
+ You either need to set \$LDFLAGS or install/update the CLN library.])
;;
esac
])
+
+dnl Usage: GINAC_TERMCAP
+dnl libreadline is based on the termcap functions.
+dnl Some systems have tgetent(), tgetnum(), tgetstr(), tgetflag(), tputs(),
+dnl tgoto() in libc, some have it in libtermcap, some have it in libncurses.
+dnl When both libtermcap and libncurses exist, we prefer the latter, because
+dnl libtermcap is being phased out.
+AC_DEFUN(GINAC_TERMCAP,
+[LIBTERMCAP=
+AC_CHECK_FUNCS(tgetent)
+if test "x$ac_cv_func_tgetent" = "xyes"; then
+ :
+else
+ AC_CHECK_LIB(ncurses, tgetent, LIBTERMCAP="-lncurses")
+ if test -z "$LIBTERMCAP"; then
+ AC_CHECK_LIB(termcap, tgetent, LIBTERMCAP="-ltermcap")
+ fi
+fi
+AC_SUBST(LIBTERMCAP)
+])
+
+dnl Usage: GINAC_ERROR(message)
+dnl This macro displays the warning "message" and sets the flag ginac_error
+dnl to yes.
+AC_DEFUN(GINAC_ERROR,[
+ginac_error_txt="$ginac_error_txt
+** $1
+"
+ginac_error=yes])
+
+dnl Usage: GINAC_WARNING(message)
+dnl This macro displays the warning "message" and sets the flag ginac_warning
+dnl to yes.
+AC_DEFUN(GINAC_WARNING,[
+ginac_warning_txt="$ginac_warning_txt
+== $1
+"
+ginac_warning=yes])
+
+dnl Usage: GINAC_CHECK_ERRORS
+dnl (preferably to be put at end of configure.in)
+dnl This macro displays a warning message if GINAC_ERROR or GINAC_WARNING
+dnl has occured previously.
+AC_DEFUN(GINAC_CHECK_ERRORS,[
+if test "x${ginac_error}" = "xyes"; then
+ echo "**** The following problems have been detected by configure."
+ echo "**** Please check the messages below before running \"make\"."
+ echo "**** (see the section 'Common Problems' in the INSTALL file)"
+ echo "$ginac_error_txt"
+ if test "x${ginac_warning_txt}" != "x"; then
+ echo "${ginac_warning_txt}"
+ fi
+ echo "deleting cache ${cache_file}"
+ rm -f $cache_file
+ else
+ if test x$ginac_warning = xyes; then
+ echo "=== The following minor problems have been detected by configure."
+ echo "=== Please check the messages below before running \"make\"."
+ echo "=== (see the section 'Common Problems' in the INSTALL file)"
+ echo "$ginac_warning_txt"
+ fi
+ echo "Configuration of GiNaC $VERSION done. Now type \"make\"."
+fi])