Re: host-ncurses 5.9 compiling fails on fedora 22 x86_64 distribution

[Thomas Dickey]

On Mon, Jun 08, 2015 at 04:11:51PM +0000, Mike Gran wrote:
> On Monday, June 8, 2015 5:17 AM, FengHaibo <address@hidden> wrote:
> 
> 
> 
> >In fact I reported this issue to fedora release team and have no answer
> >there, so looking help from ncurses, all other open source packages
> >used are compiled well, only ncurses has the problem. Attached the
> >generated lib_gen.c

ncurses has a complicated configure script...

> >As I checked, the error seems to be because automatically generated
> >lib_gen.c has some syntax error like:
> >NCURSES_EXPORT(int) (attroff) (int z)
> >{
> >        T((T_CALLED("attroff(%s)"), _traceattr2(0,(chtype)z)));
> >returnCode(wattr_off(stdscr, (attr_t)(z),
> ># 39 "_19107.c" 3 4
> > ((void *)0)
> ># 39 "_19107.c"
> >));
> >}
> >
> >
> >But in an old fedora version compiling, the line "# 39 "_19107.c""
> >doesn't exist. This file is generated by a shell in ncurses, named
> >MKlib_gen.sh
> >
> >
> >Please kindly help to check this issue as it breaks my daily coding
> Hi Thomas, et al.  This looks like the porting problem
> described here: https://gcc.gnu.org/gcc-5/porting_to.html

This looks like the issue which (I think) was fixed in 

        http://invisible-island.net/ncurses/NEWS.html#t20141206

The fix would be to use a recent snapshot (with the caution about
using --with-abi-version=5, if you want ncurses5, rather than ncurses6,
of course):

        http://invisible-island.net/datafiles/current/ncurses.tar.gz

> They say it is solved by adding the "-P" CFLAG to scripts that
> automatically generate code.

Actually that's not much of a solution - I try to avoid using compiler
specific options to make code _portable_ (but it would have been nice if
it was documented last summer when the problem was introduced).

-- 
Thomas E. Dickey <address@hidden>
http://invisible-island.net
ftp://invisible-island.net

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