Hey all:

I've been running Slack as a server for a while now, but I'm just now starting to develop on it. I'm having trouble getting anything to compile. Of course I started out with the most basic:

#include <stdio.h>

int main(int argc, char** argv) {
printf("Hello World!\n");

return 0;
}


upon compiling I get a load of errors originating from stdio.h

Any ideas??

Your headers are out of sync with you libs? Make sure you've got the latest of both.

/# cat purkcl.c
#include <stdio.h>
int main(int argc, char** argv) {
printf("Hello World!\n");
return 0;
}
/# a.out
Hello World!
/#

works here.
post the errors.

% gcc hello.c
In file included from hello.c:1:
/usr/lib/gcc-lib/i486-slackware-linux/3.2.3/include/stdio.h:37:23: features.h: No such file or directory
In file included from /usr/lib/gcc-lib/i486-slackware-linux/3.2.3/include/stdio.h:43,
from hello.c:1:
/usr/lib/gcc-lib/i486-slackware-linux/3.2.3/include/stddef.h:213: syntax error before "typedef"
/usr/lib/gcc-lib/i486-slackware-linux/3.2.3/include/stdio.h:45:25: bits/types.h: No such file or directory
In file included from hello.c:1:
/usr/lib/gcc-lib/i486-slackware-linux/3.2.3/include/stdio.h:55: syntax error before "typedef"
/usr/lib/gcc-lib/i486-slackware-linux/3.2.3/include/stdio.h:71: syntax error before "typedef"
/usr/lib/gcc-lib/i486-slackware-linux/3.2.3/include/stdio.h:81:19: libio.h: No such file or directory
/usr/lib/gcc-lib/i486-slackware-linux/3.2.3/include/stdio.h:97: syntax error before "typedef"
/usr/lib/gcc-lib/i486-slackware-linux/3.2.3/include/stdio.h:147:28: bits/stdio_lim.h: No such file or directory
/usr/lib/gcc-lib/i486-slackware-linux/3.2.3/include/stdio.h:151: syntax error before "extern"
/usr/lib/gcc-lib/i486-slackware-linux/3.2.3/include/stdio.h:161: syntax error before "extern"
/usr/lib/gcc-lib/i486-slackware-linux/3.2.3/include/stdio.h:161: syntax error before "__THROW"
/usr/lib/gcc-lib/i486-slackware-linux/3.2.3/include/stdio.h:163: syntax error before "__THROW"
/usr/lib/gcc-lib/i486-slackware-linux/3.2.3/include/stdio.h:167: syntax error before "__BEGIN_NAMESPACE_STD"
/usr/lib/gcc-lib/i486-slackware-linux/3.2.3/include/stdio.h:170: syntax error before "extern"
/usr/lib/gcc-lib/i486-slackware-linux/3.2.3/include/stdio.h:170: syntax error before "__THROW"
/usr/lib/gcc-lib/i486-slackware-linux/3.2.3/include/stdio.h:180: syntax error before "__THROW"
/usr/lib/gcc-lib/i486-slackware-linux/3.2.3/include/stdio.h:207: syntax error before "__BEGIN_NAMESPACE_STD"
/usr/lib/gcc-lib/i486-slackware-linux/3.2.3/include/stdio.h:209: syntax error before "extern"
/usr/lib/gcc-lib/i486-slackware-linux/3.2.3/include/stdio.h:209: syntax error before "__THROW"
/usr/lib/gcc-lib/i486-slackware-linux/3.2.3/include/stdio.h:211: syntax error before "__THROW"
/usr/lib/gcc-lib/i486-slackware-linux/3.2.3/include/stdio.h:225: syntax error before "__BEGIN_NAMESPACE_STD"
/usr/lib/gcc-lib/i486-slackware-linux/3.2.3/include/stdio.h:228: syntax error before "extern"
/usr/lib/gcc-lib/i486-slackware-linux/3.2.3/include/stdio.h:229: syntax error before "__THROW"
/usr/lib/gcc-lib/i486-slackware-linux/3.2.3/include/stdio.h:233: syntax error before "__THROW"
/usr/lib/gcc-lib/i486-slackware-linux/3.2.3/include/stdio.h:280: syntax error before "__BEGIN_NAMESPACE_STD"
/usr/lib/gcc-lib/i486-slackware-linux/3.2.3/include/stdio.h:283: syntax error before "extern"
/usr/lib/gcc-lib/i486-slackware-linux/3.2.3/include/stdio.h:283: syntax error before "__THROW"
/usr/lib/gcc-lib/i486-slackware-linux/3.2.3/include/stdio.h:288: syntax error before "__THROW"
/usr/lib/gcc-lib/i486-slackware-linux/3.2.3/include/stdio.h:302: syntax error before "__BEGIN_NAMESPACE_STD"
/usr/lib/gcc-lib/i486-slackware-linux/3.2.3/include/stdio.h:304: syntax error before "extern"
/usr/lib/gcc-lib/i486-slackware-linux/3.2.3/include/stdio.h:305: syntax error before "__THROW"
/usr/lib/gcc-lib/i486-slackware-linux/3.2.3/include/stdio.h:307: syntax error before "__THROW"
/usr/lib/gcc-lib/i486-slackware-linux/3.2.3/include/stdio.h:310: syntax error before "__THROW"
/usr/lib/gcc-lib/i486-slackware-linux/3.2.3/include/stdio.h:314: syntax error before "_G_va_list"
/usr/lib/gcc-lib/i486-slackware-linux/3.2.3/include/stdio.h:316: syntax error before "_G_va_list"
/usr/lib/gcc-lib/i486-slackware-linux/3.2.3/include/stdio.h:320: syntax error before "_G_va_list"
/usr/lib/gcc-lib/i486-slackware-linux/3.2.3/include/stdio.h:358: syntax error before "__BEGIN_NAMESPACE_STD"
/usr/lib/gcc-lib/i486-slackware-linux/3.2.3/include/stdio.h:360: syntax error before "extern"
/usr/lib/gcc-lib/i486-slackware-linux/3.2.3/include/stdio.h:361: syntax error before "__THROW"
/usr/lib/gcc-lib/i486-slackware-linux/3.2.3/include/stdio.h:363: syntax error before "__THROW"
/usr/lib/gcc-lib/i486-slackware-linux/3.2.3/include/stdio.h:366: syntax error before "__THROW"
/usr/lib/gcc-lib/i486-slackware-linux/3.2.3/include/stdio.h:388: syntax error before "__BEGIN_NAMESPACE_STD"
/usr/lib/gcc-lib/i486-slackware-linux/3.2.3/include/stdio.h:390: syntax error before "extern"
/usr/lib/gcc-lib/i486-slackware-linux/3.2.3/include/stdio.h:390: syntax error before "__THROW"
/usr/lib/gcc-lib/i486-slackware-linux/3.2.3/include/stdio.h:391: syntax error before "__THROW"
/usr/lib/gcc-lib/i486-slackware-linux/3.2.3/include/stdio.h:394: syntax error before "__THROW"
/usr/lib/gcc-lib/i486-slackware-linux/3.2.3/include/stdio.h:413: syntax error before "__BEGIN_NAMESPACE_STD"
/usr/lib/gcc-lib/i486-slackware-linux/3.2.3/include/stdio.h:415: syntax error before "extern"
/usr/lib/gcc-lib/i486-slackware-linux/3.2.3/include/stdio.h:415: syntax error before "__THROW"
/usr/lib/gcc-lib/i486-slackware-linux/3.2.3/include/stdio.h:416: syntax error before "__THROW"
/usr/lib/gcc-lib/i486-slackware-linux/3.2.3/include/stdio.h:419: syntax error before "__THROW"
/usr/lib/gcc-lib/i486-slackware-linux/3.2.3/include/stdio.h:447: syntax error before "__BEGIN_NAMESPACE_STD"
/usr/lib/gcc-lib/i486-slackware-linux/3.2.3/include/stdio.h:449: syntax error before "extern"
/usr/lib/gcc-lib/i486-slackware-linux/3.2.3/include/stdio.h:450: syntax error before "__THROW"
/usr/lib/gcc-lib/i486-slackware-linux/3.2.3/include/stdio.h:454: syntax error before "__THROW"
/usr/lib/gcc-lib/i486-slackware-linux/3.2.3/include/stdio.h:484: syntax error before "__BEGIN_NAMESPACE_STD"
/usr/lib/gcc-lib/i486-slackware-linux/3.2.3/include/stdio.h:486: syntax error before "extern"
/usr/lib/gcc-lib/i486-slackware-linux/3.2.3/include/stdio.h:487: syntax error before "__THROW"
/usr/lib/gcc-lib/i486-slackware-linux/3.2.3/include/stdio.h:490: syntax error before "__THROW"
/usr/lib/gcc-lib/i486-slackware-linux/3.2.3/include/stdio.h:494: syntax error before "__THROW"
/usr/lib/gcc-lib/i486-slackware-linux/3.2.3/include/stdio.h:499: syntax error before "__THROW"
/usr/lib/gcc-lib/i486-slackware-linux/3.2.3/include/stdio.h:502: syntax error before "__THROW"
/usr/lib/gcc-lib/i486-slackware-linux/3.2.3/include/stdio.h:520: syntax error before "__BEGIN_NAMESPACE_STD"
/usr/lib/gcc-lib/i486-slackware-linux/3.2.3/include/stdio.h:522: syntax error before "extern"
/usr/lib/gcc-lib/i486-slackware-linux/3.2.3/include/stdio.h:522: syntax error before "__THROW"
/usr/lib/gcc-lib/i486-slackware-linux/3.2.3/include/stdio.h:524: syntax error before "__THROW"
/usr/lib/gcc-lib/i486-slackware-linux/3.2.3/include/stdio.h:526: syntax error before "__THROW"
/usr/lib/gcc-lib/i486-slackware-linux/3.2.3/include/stdio.h:553: syntax error before "__BEGIN_NAMESPACE_STD"
/usr/lib/gcc-lib/i486-slackware-linux/3.2.3/include/stdio.h:556: syntax error before "extern"
/usr/lib/gcc-lib/i486-slackware-linux/3.2.3/include/stdio.h:556: syntax error before "fpos_t"
/usr/lib/gcc-lib/i486-slackware-linux/3.2.3/include/stdio.h:559: syntax error before '*' token
/usr/lib/gcc-lib/i486-slackware-linux/3.2.3/include/stdio.h:582: syntax error before "__BEGIN_NAMESPACE_STD"
/usr/lib/gcc-lib/i486-slackware-linux/3.2.3/include/stdio.h:584: syntax error before "extern"
/usr/lib/gcc-lib/i486-slackware-linux/3.2.3/include/stdio.h:584: syntax error before "__THROW"
/usr/lib/gcc-lib/i486-slackware-linux/3.2.3/include/stdio.h:586: syntax error before "__THROW"
/usr/lib/gcc-lib/i486-slackware-linux/3.2.3/include/stdio.h:588: syntax error before "__THROW"
/usr/lib/gcc-lib/i486-slackware-linux/3.2.3/include/stdio.h:599: syntax error before "__BEGIN_NAMESPACE_STD"
/usr/lib/gcc-lib/i486-slackware-linux/3.2.3/include/stdio.h:601: syntax error before "extern"
/usr/lib/gcc-lib/i486-slackware-linux/3.2.3/include/stdio.h:601: syntax error before "__THROW"
/usr/lib/gcc-lib/i486-slackware-linux/3.2.3/include/stdio.h:608:30: bits/sys_errlist.h: No such file or directory
/usr/lib/gcc-lib/i486-slackware-linux/3.2.3/include/stdio.h:686: syntax error before "__END_DECLS"
hello.c:3: syntax error before "int"

upgrade to gcc3.3.3 wich is the current gcc