curses configure checks fail if only /usr/include/ncursesw/curses.h is installed

[doko42]

BPO	15268
Nosy	@doko42, @vstinner
Files	curses.diff curses2.diff curses3.diff 4-CROSS-avoid-ncursesw-include-path-hack.patch: skip search in /usr/include/ncursesw if cross-build

^{Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.}

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GitHub fields:

assignee = None
closed_at = None
created_at = <Date 2012-07-07.01:04:27.235>
labels = ['build']
title = 'curses configure checks fail if only /usr/include/ncursesw/curses.h is installed'
updated_at = <Date 2012-10-17.17:09:25.958>
user = 'https://github.com/doko42'

bugs.python.org fields:

activity = <Date 2012-10-17.17:09:25.958>
actor = 'Arfrever'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = ['Build']
creation = <Date 2012-07-07.01:04:27.235>
creator = 'doko'
dependencies = []
files = ['26276', '26277', '26278', '26567']
hgrepos = []
issue_num = 15268
keywords = ['patch', 'needs review']
message_count = 7.0
messages = ['164765', '164766', '164767', '164769', '164771', '164780', '166732']
nosy_count = 7.0
nosy_names = ['doko', 'vstinner', 'rpetrov', 'Arfrever', 'devurandom', 'python-dev', 'Justin.Venus']
pr_nums = []
priority = 'normal'
resolution = None
stage = None
status = 'open'
superseder = None
type = None
url = 'https://bugs.python.org/issue15268'
versions = ['Python 3.3']

[doko42]

the curses configure checks fail if only /usr/include/ncursesw/curses.h is installed (on a Debian/Ubuntu system, uninstall the libncurses5-dev package, and install the libncursesw5-dev package).

The attached patch adds -I/usr/include/ncursesw to CPPFLAGS for the tests.

I assume that most buildbot systems still have an /usr/include/curses.h installed, so the tests do the intended thing, because the features tested are the same in ncurses and ncursesw, but basically the wrong headers are used for these tests if both /usr/include/curses.h and /usr/include/ncursesw/curses.h are installed.

[python-dev]

New changeset 707761d59a4a by doko in branch 'default':

• Issue bpo-15268: Search curses.h in /usr/include/ncursesw.
  http://hg.python.org/cpython/rev/707761d59a4a

[doko42]

can be closed if we don't bother to use the "wrong" header for the checks

[doko42]

and only add the dir for the curses.h and nurses.h header checks

[doko42]

and a variant, which moves all curses header related check together (curses3.diff)

[JustinVenus]

I have a similar issue on Solaris and a patch[1] to fix it attached to bpo-3786.

1. http://bugs.python.org/file26171/bug3786.patch

[rpetrov]

Matthias, do not use hack if cross-build