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GCC: General Macro for BSD

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# 1  
Old 08-25-2014
BSD [Solved] GCC: General Macro for BSD
Is there a universal macro for any BSD system. I am currently on FreeBSD where __FreeBSD__ is defined. It looks like on NetBSD systems __NetBSD__ is defined. I have tried using __BSD__ but doesn't appear to exists. Is there a universal way of testing if you are using any BSD system with GCC? According to this page I should be able to use BSD, but this is not working for me.

test.c:
PHP Code:
#include <stdio.h>

int main(void) {
#if defined(unix)
    printf("Hello unix!\n");
#endif

#if defined(UNIX)
    printf("Hello UNIX!\n");
#endif

#if defined(__unix__)
    printf("Hello __unix__!\n");
#endif

#if defined(__UNIX__)
    printf("Hello __UNIX__!\n");
#endif

#if defined(__BSD__)
    printf("Hello __BSD__!\n");
#endif

#if defined(BSD)
    printf("Hello BSD!\n");
#endif

#if defined(__FreeBSD__)
    printf("Hello FreeBSD!\n");
#endif

#if !defined(__FreeBSD__)
    printf("Not Hello FreeBSD!\n");
#endif

#if defined(__NetBSD__)
    printf("Hello NetBSD!\n");
#endif

#if defined(__WIN32__) || defined(__WIN64__)
    printf("Hello Windows!\n");
#endif

#if defined(__LINUX__)
    printf("Hello Linux!\n");
#endif
    } 
Output:
Quote:
Hello FreeBSD!
Hello All!


--- Edit ---

Sorry, I wasn't paying attention. I need to include [cmd]sys/param.h[/cmd].

--- Note ---

I am also posting this question to the FreeBSD forums: https://forums.freebsd.org/viewtopic...266740#p266740
Last edited by AntumDeluge; 08-25-2014 at 04:12 PM.. Reason: Solved
# 2  
Old 08-25-2014
You can do it like #if defined(__SOMETHING__) || defined(__SOMETHINGELSE__) || defined(__THIRDTHING__)
# 3  
Old 08-26-2014
Thanks Corona, I realize that. I just wanted to test each macro individually.
# 4  
Old 08-26-2014
Code:
cpp -dM /dev/null

This User Gave Thanks to achenle For This Post:
AntumDeluge
# 5  
Old 08-27-2014
BSD
Thank you achenle. That command is very helpful. Is there a way to include the defines "sys/param.h" in that command?
# 6  
Old 08-27-2014
Code:
cpp -dM <<"EOF"
#include <sys/param.h>

/* as much more code as you want */
EOF

This User Gave Thanks to Corona688 For This Post:
AntumDeluge
# 7  
Old 08-28-2014
Thank you Corona, perfect. That helps me understand stdin a bit better as well.
This User Gave Thanks to AntumDeluge For This Post:
Corona688
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