[swift-users] SwiftPM: import ncurses -> conflicting types

[Bouke Haarsma]

In hindsight it just looks so easy -- I already found those headers in 
the SDK. Thanks!

On 2016-12-29 05:53:22 +0000, Ankit Aggarwal via swift-users said:

> ncurses is already present in the macOS sdk, so you don't need to 
> install it via brew.
> 
> In CNCurses package, create a file called "shim.h":
> $ cat shim.h
> #include "ncurses.h"
> 
> and change the modulemap to this:
> $ cat module.modulemap
> module CNCurses [system] {
>   header "shim.h"
>   link "ncurses"
>   export *
> }
> 
>> On 29-Dec-2016, at 1:25 AM, Bouke Haarsma via swift-users 
>> <swift-users at swift.org> wrote:
>> 
>> Hi all,
>> 
>> I'm trying to build something with ncurses. There's this outdated 
>> tutorial: 
>> http://dev.iachieved.it/iachievedit/ncurses-with-swift-on-linux/. In 
>> order to build, a system module map was provided here: 
>> https://github.com/iachievedit/CNCURSES. This assumes 
>> `/usr/include/ncurses.h`, which is not available on MacOS 10.12. So 
>> I've installed ncurses through homebrew and updated the modulemap: 
>> https://github.com/Bouke/CNCurses. Sadly though, it doesn't work and I 
>> can't figure out how to get it working.
>> 
>>> brew install homebrew/dupes/ncurses
>> 
>> Module map:
>> 
>>> module CNCurses [system] {
>>> header "/usr/local/Cellar/ncurses/6.0_2/include/ncurses.h"
>>> link "ncurses"
>>> export *
>>> }
>> 
>> I'm building with the following command, the flags taken from the 
>> package provided ncurses.pc:
>> 
>>> swift build \
>>> 	-Xcc -D_DARWIN_C_SOURCE \
>>> 	-Xcc -I/usr/local/Cellar/ncurses/6.0_2/include \
>>> 	-Xcc -I/usr/local/Cellar/ncurses/6.0_2/include/ncursesw \
>>> 	-Xlinker -L/usr/local/Cellar/ncurses/6.0_2/lib
>> 
>> This produces the following error message (shortened):
>> 
>>> Compile Swift Module 'TermDraw' (1 sources)
>>> <module-includes>:1:9: note: in file included from <module-includes>:1:
>>> #import "/usr/local/Cellar/ncurses/6.0_2/include/ncurses.h"
>>> ^
>>> /usr/local/Cellar/ncurses/6.0_2/include/ncurses.h:60:10: error: 
>>> 'ncursesw/ncurses_dll.h' file not found with <angled> include; use 
>>> "quotes" instead
>>> #include <ncursesw/ncurses_dll.h>
>>> ^
>>> <module-includes>:1:9: note: in file included from <module-includes>:1:
>>> #import "/usr/local/Cellar/ncurses/6.0_2/include/ncurses.h"
>>> ^
>>> /usr/local/Cellar/ncurses/6.0_2/include/ncurses.h:653:45: error: 
>>> conflicting types for 'keyname'
>>> extern NCURSES_EXPORT(NCURSES_CONST char *) keyname (int);              
>>> /* implemented */
>>> ^
>>> /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.12.sdk/usr/include/curses.h:598:45: 
>>> note: previous declaration is here
>>> extern NCURSES_EXPORT(NCURSES_CONST char *) keyname (int);              
>>> /* implemented */
>>> ^
>>> <module-includes>:1:9: note: in file included from <module-includes>:1:
>>> #import "/usr/local/Cellar/ncurses/6.0_2/include/ncurses.h"
>>> ^
>> 
>> (and goes on for quite a few other conflicting types)
>> 
>> Any help on getting this to build is greatly appreciated. Example code 
>> can be found here: https://github.com/Bouke/TermDraw
>> 
>> ---
>> Thanks,
>> Bouke
>> 
>> 
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