From 32c960bdc61e26521507f2d629ba4da8a4db842e Mon Sep 17 00:00:00 2001 From: Paul Eggert Date: Sun, 3 Jan 2021 12:32:27 -0800 Subject: [PATCH] Mention -lcurses problem on AIX * etc/PROBLEMS: Describe problem with Emacs 27 and -lcurses. Do not merge to master. --- etc/PROBLEMS | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/etc/PROBLEMS b/etc/PROBLEMS index 2ab76e50bd..7499726678 100644 --- a/etc/PROBLEMS +++ b/etc/PROBLEMS @@ -2879,6 +2879,19 @@ A solution is to link with GCC, like this: Since the .o object files already exist, this will not recompile Emacs with GCC, but just restart by trying again to link temacs. +*** Building Emacs with -lcurses fails with undefined symbols like BC. + +The 'configure' script attempts to use several terminal libraries, +including tinfo, ncurses, and terminfo, and curses (in that order). +If it happens to choose the long-obsolete curses library, Emacs will +not link correctly. Emacs 28 is expected to work around this problem; +in the meantime you can work around it by installing tinfo, ncurses or +terminfo instead. + +This problem can happen on AIX 7.2 if you build with IBM's compiler XLC, +as AIX's ncurses library suffers from the libgcc problem mentioned above. +To work around this, configure and build with GCC. + *** Sun with acc: Link failure when using acc on a Sun. To use acc, you need additional options just before the libraries, such as -- 2.27.0