Hello, I am trying to reproduce the problem reported as "#898: GHC compiles against Apple's readline, giving error". On my PPC Mac OS X 10.3 Panther, however, I have managed to build ghc-6.6 without running into this particular problem. Initially without gnu readline, the resulting GHCi is, of course, without readline support. And after installing readline 5.1 via Darwin/MacPorts into /opt/local, I can re-build and this time get a GHCi with readline support, provided I "./configure --with-readline-includes=/opt/local/include/ --with-readline-libraries=/opt/local/lib". The reason for the error is stated as "The bug is really that Apple symlinks libreadline to libedit", but my system does not contain such a symlink. Is it possible to set up this masquerading on a Mac OS X 10.3? Or would I need to upgrade to 10.4? Or could something else again be required? Thanks and regards Thorkil On Saturday 04 November 2006 00:14, Deborah Goldsmith wrote:
On Oct 30, 2006, at 2:40 PM, Deborah Goldsmith wrote:
I think I have this partially figured out.
The following patch to libraries/readline/configure.ac seems to do the trick for Darwin:
--- configure.ac.save 2006-10-10 12:09:04.000000000 -0700 +++ configure.ac 2006-11-02 17:32:50.000000000 -0800 @@ -43,7 +43,10 @@ dnl ** is our readline really readline, or is it BSD's libedit? if test x"$HaveLibReadline" = xYES ; then - AC_CHECK_LIB(readline, rl_readline_version, ReadlineIsLibedit=NO, ReadlineIsLibedit=YES) + AC_CHECK_DECL(rl_readline_version, ReadlineIsLibedit=NO, ReadlineIsLibedit=YES, +[#include
+#include +]) fi if test $HaveLibTermcap = YES && test x"$HaveLibReadline" = xYES && test x"$ReadlineIsLibedit" = xNO ; then @@ -56,9 +59,12 @@ AC_SUBST(READLINE_LIBS) if test x"$HaveLibReadline" = xYES && test x"$ReadlineIsLibedit" = xNO ; then - AC_CHECK_LIB(readline, rl_erase_empty_line, + AC_CHECK_DECL(rl_erase_empty_line, [AC_DEFINE([HAVE_READLINE_4], [1], [Define to 1 if readline has version >= 4.0.])], - [AC_DEFINE([HAVE_READLINE_4], [0], [Define to 1 if readline has version >= 4.0.])]) + [AC_DEFINE([HAVE_READLINE_4], [0], [Define to 1 if readline has version >= 4.0.])], +[#include +#include +]) AC_CHECK_LIB(readline, rl_free_undo_list, [AC_DEFINE([HAVE_READLINE_4_2], [1], [Define to 1 if readline has version >= 4.2.])], [AC_DEFINE([HAVE_READLINE_4_2], [0], [Define to 1 if readline has version >= 4.2.])]) When I build with this patch after configuring to look for GNU readline in /usr/local, everything works. I don't know if this particular patch will work well on other systems. Maybe folks could try it out?
Thanks, Deborah
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