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require 'mkmf'
def transact
old_libs = $libs.dup
old_defs = $defs.dup
result = yield
if !result
$libs = old_libs
$defs = old_defs
end
result
end
def check_header_library(hdr, libs)
if !have_header(hdr)
return nil
end
libs.each {|lib|
if have_library(lib, "initscr")
return [hdr, lib]
end
}
nil
end
dir_config('curses')
dir_config('ncurses')
dir_config('termcap')
have_library("mytinfo", "tgetent") if /bow/ =~ RUBY_PLATFORM
have_library("tinfo", "tgetent") or have_library("termcap", "tgetent")
header_library = nil
[
["ncurses.h", ["ncursesw", "ncurses"]],
["ncurses/curses.h", ["ncurses"]],
["curses_colr/curses.h", ["cur_colr"]],
["curses.h", ["curses"]],
].each {|hdr, libs|
header_library = transact { check_header_library(hdr, libs) }
if header_library
break;
end
}
if header_library
header, library = header_library
puts "header: #{header}"
puts "library: #{library}"
curses = [header]
if header == 'curses_colr/curses.h'
curses.unshift("varargs.h")
end
for f in %w(beep bkgd bkgdset curs_set deleteln doupdate flash
getbkgd getnstr init isendwin keyname keypad resizeterm
scrl set setscrreg ungetch
wattroff wattron wattrset wbkgd wbkgdset wdeleteln wgetnstr
wresize wscrl wsetscrreg
def_prog_mode reset_prog_mode timeout wtimeout nodelay
init_color wcolor_set use_default_colors newpad)
have_func(f) || (have_macro(f, curses) && $defs.push(format("-DHAVE_%s", f.upcase)))
end
flag = "-D_XOPEN_SOURCE_EXTENDED"
if try_static_assert("sizeof(char*)>sizeof(int)",
%w[stdio.h stdlib.h]+curses,
flag)
$defs << flag
end
have_var("ESCDELAY", curses)
have_var("TABSIZE", curses)
have_var("COLORS", curses)
have_var("COLOR_PAIRS", curses)
# SVR4 curses has a (undocumented) variable char *curses_version.
# ncurses and PDcurses has a function char *curses_version().
# Note that the original BSD curses doesn't provide version information.
prolog = cpp_include(curses)
if checking_for(checking_message('function curses_version', curses)) {
try_run(<<-"End")
#{prolog}
int main(int argc, char *argv[])
{
curses_version();
return EXIT_SUCCESS;
}
End
}
$defs << '-DHAVE_FUNC_CURSES_VERSION'
end
if checking_for(checking_message('variable curses_version', curses)) {
try_run(<<-"End")
#{prolog}
extern char *curses_version;
int main(int argc, char *argv[])
{
int i = 0;
for (i = 0; i < 100; i++) {
if (curses_version[i] == 0)
return 0 < i ? EXIT_SUCCESS : EXIT_FAILURE;
if (curses_version[i] & 0x80)
return EXIT_FAILURE;
}
return EXIT_FAILURE;
}
End
}
$defs << '-DHAVE_VAR_CURSES_VERSION'
end
create_makefile("curses")
end
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