#18301: ncurses fails to build with GCC 5.x
----------------------------------+-------------------------------------
Reporter: leif | Owner: leif
Type: defect | Status: new
Priority: critical | Milestone: sage-6.7
Component: packages: standard | Keywords: syntax error, cpp
Merged in: | Authors: Leif Leonhardy
Reviewers: | Report Upstream: N/A
Work issues: | Branch:
Commit: | Dependencies:
Stopgaps: |
----------------------------------+-------------------------------------
{{{
...
gcc-5.1 -DHAVE_CONFIG_H -I../ncurses -I../../ncurses -I. -I../include
-I../../ncurses/../include -I/foo/sage-6.6-gcc-5.1.0/local/include
-D_GNU_SOURCE -DNDEBUG -O2 --param max-inline-insns-single=1200 -fPIC -c
../ncurses/lib_gen.c -o ../obj_s/lib_gen.o
In file included from ../../ncurses/curses.priv.h:321:0,
from ../ncurses/lib_gen.c:19:
_3081.c:837:15: error: expected ')' before 'int'
../include/curses.h:1622:56: note: in definition of macro 'mouse_trafo'
#define mouse_trafo(y,x,to_screen) wmouse_trafo(stdscr,y,x,to_screen)
^
Makefile:1323: recipe for target '../obj_s/lib_gen.o' failed
make[1]: *** [../obj_s/lib_gen.o] Error 1
make[1]: Leaving directory '/tmp/sage-build-
tmp/ncurses-5.9.20131221/src/narrow/ncurses'
Makefile:111: recipe for target 'all' failed
make: *** [all] Error 2
Error building ncurses (narrow).
}}}
(`build/pkgs/ncurses/patches/ncurses-5.9.20131221_work_around_broken_GNU_cpp_5.x.patch`,
self-explanatory:)
{{{
#!patch
Building ncurses with GCC 5.1 (or more precisely, with its 'cpp') fails
with
a syntax error, caused by earlier preprocessing.
(I'm not entirely sure whether it's a GCC bug or rather caused by a new
feature which breaks further processing with 'awk' and 'sed'; I *think*
at least the 'awk' inline script "AW2" simply isn't prepared for the
changed
output of 'cpp' w.r.t. line directives [1]. Anyway, the patch fixes the
issue.)
[1] https://gcc.gnu.org/gcc-5/porting_to.html
--- ncurses-5.9.20131221/ncurses/base/MKlib_gen.sh 2011-06-04
21:14:08.000000000 +0200
+++ ncurses-5.9.20131221/ncurses/base/MKlib_gen.sh 2015-04-26
00:47:06.911680782 +0200
@@ -62,7 +62,15 @@
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"
}}}
--
Ticket URL: <http://trac.sagemath.org/ticket/18301>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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