[Buildroot] [PATCH 1/1] ncurses: fix gcc 5 compile issue for real

[Yann E. MORIN]

Mikhail, All,

On 2015-07-24 16:00 +0300, kyak spake thusly:
> The previous patch didn't work in all cases. The new patch is taken from
> upstream: http://ncurses.scripts.mit.edu/?p=ncurses.git;a=commit;h=97bb4678dc03e753290b39bbff30ba2825df9517
> 
> Fetch from: http://ncurses.scripts.mit.edu/?p=ncurses.git;a=blobdiff;f=ncurses/base/MKlib_gen.sh;h=b91398c740a266f10edbbce19f19c52b9709556f;hp=d8cc3c9751faa157d0c8cb8e16fbe4217703966b;hb=97bb4678dc03e753290b39bbff30ba2825df9517;hpb=762520a7930d7f698d542628d3c04bc201f7dac2
> 
> Signed-off-by: Thomas E. Dickey <dickey at invisible-island.net>
> Signed-off-by: Mikhail Peselnik <bas at bmail.ru>

Reviewed-by: "Yann E. MORIN" <yann.morin.1998 at free.fr>

Regards,
Yann E. MORIN.

> ---
>  package/ncurses/0002-gcc-5.x-MKlib_gen.patch | 60 +++++++++++++---------------
>  1 file changed, 28 insertions(+), 32 deletions(-)
> 
> diff --git a/package/ncurses/0002-gcc-5.x-MKlib_gen.patch b/package/ncurses/0002-gcc-5.x-MKlib_gen.patch
> index 0771208..fca7624 100644
> --- a/package/ncurses/0002-gcc-5.x-MKlib_gen.patch
> +++ b/package/ncurses/0002-gcc-5.x-MKlib_gen.patch
> @@ -1,33 +1,29 @@
> -Fix GCC 5.x preprocessor failure
> -
> -Building ncurses 5.9 with GCC 5.x fails with a syntax error, caused by
> -earlier preprocessing. This failure is more likely when building for
> -host (e.g. host-ncurses) that recently updated to GCC 5.x.
> -
> -This patch is taken from the following link (more information is also
> -available here):
> -https://groups.google.com/forum/#!topic/sage-trac/U31shviuqzk
> -
> -Signed-off-by: Doug Kehn <rdkehn at yahoo.com>
> -
> -Index: b/ncurses/base/MKlib_gen.sh
> -===================================================================
> ---- a/ncurses/base/MKlib_gen.sh
> -+++ b/ncurses/base/MKlib_gen.sh
> -@@ -62,7 +62,15 @@ if test "${LC_MESSAGES+set}" = set; then
> - if test "${LC_CTYPE+set}"    = set; then LC_CTYPE=C;    export LC_CTYPE;    fi
> - if test "${LC_COLLATE+set}"  = set; then LC_COLLATE=C;  export LC_COLLATE;  fi
> - 
> --preprocessor="$1 -DNCURSES_INTERNALS -I../include"
> -+# Work around "unexpected" output of GCC 5.1.0's cpp w.r.t. #line directives
> -+# by simply suppressing them:
> -+case `$1 -dumpversion 2>/dev/null` in
> -+	5.[01].*)  # assume a "broken" one
> -+		preprocessor="$1 -P -DNCURSES_INTERNALS -I../include"
> -+		;;
> -+	*)
> -+		preprocessor="$1 -DNCURSES_INTERNALS -I../include"
> -+esac
> - AWK="$2"
> - USE="$3"
> +--- a/ncurses/base/MKlib_gen.sh.orig	2015-07-23 21:52:32.239481505 +0300
> ++++ b/ncurses/base/MKlib_gen.sh	2015-07-23 21:53:20.772966587 +0300
> +@@ -437,11 +437,22 @@
> + 	-e 's/gen_$//' \
> + 	-e 's/  / /g' >>$TMP
>   
> ++cat >$ED1 <<EOF
> ++s/  / /g
> ++s/^ //
> ++s/ $//
> ++s/P_NCURSES_BOOL/NCURSES_BOOL/g
> ++EOF
> ++
> ++# A patch discussed here:
> ++#       https://gcc.gnu.org/ml/gcc-patches/2014-06/msg02185.html
> ++# introduces spurious #line markers.  Work around that by ignoring the system's
> ++# attempt to define "bool" and using our own symbol here.
> ++sed -e 's/bool/P_NCURSES_BOOL/g' $TMP > $ED2
> ++cat $ED2 >$TMP
> ++
> + $preprocessor $TMP 2>/dev/null \
> +-| sed \
> +-	-e 's/  / /g' \
> +-	-e 's/^ //' \
> +-	-e 's/_Bool/NCURSES_BOOL/g' \
> ++| sed -f $ED1 \
> + | $AWK -f $AW2 \
> + | sed -f $ED3 \
> + | sed \
> -- 
> 2.4.6
> 
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