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FreeBSD: Fix to build APPLEN #170

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@kiyolee kiyolee commented Jun 1, 2024

Some tweaks to get APPLEN target to build on FreeBSD.
Not yet verify if the build actually works on FreeBSD.

# so that the code can include "minizip/zip.h" explicitly.
target_include_directories(appleii PUBLIC
${CMAKE_CURRENT_BINARY_DIR} # for config.h
${MINIZIP_INCLUDE_DIRS}/..
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I see the issue, but it is not limited to FreeBSD. What happens if I install https://packages.ubuntu.com/noble/libzip-dev ?
There must be a more general solution

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@audetto audetto Jun 1, 2024

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I have tried and there are no issues. The reason must be

  1. if I want minizip, then I add -I/usr/include/minizip and although zip.h is ambiguous, this explicit -I wins over the default one (used by libzip)
  2. If I want zip, no problem as I do not add the minizip -I
  3. I can't use them both.

So, the issue is probably related to a user who have both libzip and minizip in /usr/local which breaks the (weak) order of includes.

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@audetto audetto Jun 1, 2024

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OK, now I see better. In FreeBSD they are all installed in /usr/local so they cannot coexist.
Which is really odd, maybe nobody is using it, someone should file a bug.

The fact is that the command pkg-config minizip -cflags in FreeBSD returns -I/usr/local/include/minizip.

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I think it is exactly the order of -I problem. pkg-config is returning the right path for minizip. But some other libs is likely returning the common /usr/local/include and happens to be earlier in the include path. The kind of problem does happen to FreeBSD ports occasionally too. Ideally for FreeBSD /usr/local/include should always be the last path. But that's very difficult to control. Neither is to have /usr/local/include/minizip always in front, just not obvious to me how within CMake that can be done reliably. If all Linux distros always put minizip headers in its own subdirectory, the hack here could work universally and so in AppleWin code we could simply #include <minizip/zip.h>.

@@ -25,6 +25,9 @@ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#ifndef _MSC_VER
#include <arpa/inet.h>
#include <netdb.h>
#ifdef __FreeBSD__
#include <sys/socket.h> // AF_INET.
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no need to add ifdef, I will commit this.

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@kiyolee kiyolee Jun 1, 2024

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Agree with that. This is just to explain the PR.
Should I update my PR? Or would you just fix your code in your way and drop the PR?
That's totally fine to me.

@@ -7,6 +7,9 @@
#include <sys/types.h>
#include <sys/socket.h>
#include <netdb.h>
#ifdef __FreeBSD__
#include <netinet/in.h> // sockaddr_in.
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will commit

@@ -75,6 +75,9 @@ typedef int socklen_t;
#include <fcntl.h>
#include <sys/types.h>
#include <errno.h>
#ifdef __FreeBSD__
#include <netinet/in.h> // sockaddr_in.
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no need of the ifdef, but this has to go to AppleWin

@kiyolee
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kiyolee commented Jun 1, 2024

FYI: APPLEN does run on FreeBSD, at least can boot DOS 3.3.

@audetto
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audetto commented Jun 2, 2024

Hi

the minizip issue is odd. I have found an alternative solution.
It is not as stable as yours, but I can pretend it does not exist.

https://github.com/audetto/AppleWin/tree/freebsd2

I will try to upstream it to AppleWin, they should not care.

I have opened an issue madler/zlib#977, feel free to chip in.

Then, as you say it works, but the ncurse F scan codes must be all over the place.

@audetto
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audetto commented Jun 2, 2024

Actually it is Shift-F behaving oddly, so I added F4 to exit.

@kiyolee
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kiyolee commented Jun 2, 2024

An alternative solution is to drop minizip detection at all on FreeBSD. Very likely /usr/local/include would already be in the include path and #include <minizip/zip.h> might just work. That may work for Linux too as /usr/include is always there in the include path anyway.

@kiyolee
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kiyolee commented Jun 2, 2024

Actually it is Shift-F behaving oddly, so I added F4 to exit.

I could only Ctrl+\ (Quit signal) to exit which is not nice.

@audetto
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audetto commented Jun 4, 2024

The most elegant solution would be to move minizip down 1 level inside AW, so that we all include it the same.

I see you have updated it recently, do you fancy proposing a new PR upstream?

@audetto
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audetto commented Nov 3, 2024

minizip has removed the source of ambiguity.

madler/zlib@7e6f078

so, I will try to change AppleWin upstream for the new layout of minizip, otherwise I will just incorporate these changes. directly.

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2 participants