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bpo-45067 - Verify the version of ncurses for extended color support feature usage. (GH-28260)

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* issue45067 - Fix _curses compilation in CentOS 7. Verify the version of ncurses
for extended color support feature usage.

The function extended_color_content was introduced in 2017.  The ncurses-devel
package in CentOS 7 had a older version ncurses resulted in compilation error.
For compiling ncurses with extended color support, we verify the version of the
ncurses library.

Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com>
Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
This commit is contained in:
Senthil Kumaran 2021-09-09 11:32:11 -07:00 • committed by GitHub
parent 7366854135
commit 794430700d
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2 changed files with 7 additions and 2 deletions
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5
Misc/NEWS.d/next/Build/2021-09-09-16-45-26.bpo-45067.mFmY92.rst Normal file
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@ -0,0 +1,5 @@
The ncurses function extended_color_content was introduced in 2017.
https://invisible-island.net/ncurses/NEWS.html#index-t20170401) The
ncurses-devel package in CentOS 7 had a older version ncurses resulted in
compilation error. For compiling ncurses with extended color support, we
verify the version of the ncurses library >= 20170401.

4
Modules/_cursesmodule.c
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@ -135,11 +135,11 @@ typedef chtype attr_t; /* No attr_t type is available */
#define STRICT_SYSV_CURSES #define STRICT_SYSV_CURSES
#endif #endif
#if NCURSES_EXT_COLORS+0 && NCURSES_EXT_FUNCS+0 #if NCURSES_EXT_FUNCS+0 >= 20170401 && NCURSES_EXT_COLORS+0 >= 20170401
#define _NCURSES_EXTENDED_COLOR_FUNCS 1 #define _NCURSES_EXTENDED_COLOR_FUNCS 1
#else #else
#define _NCURSES_EXTENDED_COLOR_FUNCS 0 #define _NCURSES_EXTENDED_COLOR_FUNCS 0
#endif /* defined(NCURSES_EXT_COLORS) && defined(NCURSES_EXT_FUNCS) */ #endif
#if _NCURSES_EXTENDED_COLOR_FUNCS #if _NCURSES_EXTENDED_COLOR_FUNCS
#define _CURSES_COLOR_VAL_TYPE int #define _CURSES_COLOR_VAL_TYPE int