I am working on a server. I have included the http-parser.h header file and used their code for how to use it. However, when I compile I get the following errors:
'my_url_callback' undeclared
'my_header_field_callback' undeclared
'my_socket' undeclared
I assumed that these were defined in the header file. Apparently, I was mistaken. How should I declare these?
Related
When I compile the extension I've got, I'm getting
error: ‘work_mem’ undeclared (first use in this function)
17 | Tuplestorestate *tupstore = tuplestore_begin_heap(true, false, work_mem);
What header includes work_mem?
The work_mem symbol is provided by misadmin.h you will have to add that header into your .c file.
#include "miscadmin.h"
I am working on Red Hat 6 with kernal version 2.6.32 , I am trying build glib 2.5 on my machine. And fail with following error:-
Log:-
../../gio/gfile.c: In function ‘splice_stream_with_progress’:
../../gio/gfile.c:3019: error: ‘F_SETPIPE_SZ’ undeclared (first use in this function)
../../gio/gfile.c:3019: error: (Each undeclared identifier is reported only once
../../gio/gfile.c:3019: error: for each function it appears in.)
../../gio/gfile.c:3023: error: ‘F_GETPIPE_SZ’ undeclared (first use in this function)
make[4]: *** [libgio_2_0_la-gfile.lo] Error 1
I can find the solution of at F_SETPIPE_SZ undeclared , placing #define _GNU_SOURCE before all includes in file gfile.c, But it didn't work. As mentioned in second answer: Older kernels (e.g. 2.6.32 as used in RHEL6) don't have them and we need bypass it in whatever you're building. How could we do that?
Appreciate your help .
Thanks in Advance.
The bug is fixed in this commit.
architectures without F_SETPIPE_SZ and F_GETPIPE_SZ such as or1k.
If those variables are undefined, put back previous behavior, buffer
size set to 1024 * 64
https://gitlab.gnome.org/GNOME/glib/-/commit/0beb62f564072f3585762c9c55fe894485993b62
You can apply the patch to your code.
I am trying to setup Dhrystone where I am getting the following error.
error: ‘HZ’ undeclared (first use in this function)
I don't the significance of HZ variable. I can compile the code straightaway by commenting the code which includes HZ variable. But is it the right way to do. Please help me in this regard.
I am tring to capture video using libvidcap in mac
I got the following errors while installing libvidcap:
quicktime/sg_manager.c:73: error: 'struct sg_source' has no member named 'channel'
quicktime/sg_manager.c:74: error: 'sgDeviceListIncludeInputs' undeclared (first use in this function)
quicktime/sg_manager.c:75: error: 'device_list' undeclared (first use in this function)
quicktime/sg_manager.c:82: error: 'dlr' undeclared (first use in this function)
quicktime/sg_manager.c:103: error: 'SGDeviceInputListPtr' undeclared (first use in this function)
quicktime/sg_manager.c:103: error: expected ';' before 'ilr'
quicktime/sg_manager.c:109: error: 'ilr' undeclared (first use in this function)
quicktime/sg_manager.c:128: warning: implicit declaration of function 'SGDisposeDeviceList'
quicktime/sg_manager.c:128: error: 'struct sg_source' has no member named 'grabber'
I added the QuickTime/QuickTimeComponents.h header in my source, but this did not solve the problem. What else do I need to do?
./configure CFLAGS="-arch i386" LDFLAGS="-arch i386"
Here's a simple example:
#include <stdlib.h>
int main(void) {
_set_error_mode(_OUT_TO_STDERR);
return EXIT_SUCCESS;
}
When compiling this program, I get the following problems:
main.c: In function 'main':
main.c:4: error: implicit declaration of function '_set_error_mode'
main.c:4: error: '_OUT_TO_STDERR' undeclared (first use in this function)
main.c:4: error: (Each undeclared identifier is reported only once
main.c:4: error: for each function it appears in.)
The header does contain the function declaration and the macro:
_CRTIMP int __cdecl __MINGW_NOTHROW _set_error_mode (int);
# define _OUT_TO_STDERR 1
How come I get the errors? Notice that I also used the EXIT_SUCCESS macro which is also defined in the same stdlib.h header but for some reason GCC doesn't complain about it. Odd.
I'm using MinGW + GCC on a Vista machine.
Your code snippet works fine for me with MinGW 3.4.5
Are you sure you have your include file path set correctly? Maybe the wrong stdlib.h is being processed. Alternatively, maybe MingGW isn't defining __MSVCRT__ which is necessary to get that function prototype (MinGW seems to define that automatically for me - I'm not sure how one would turn it off).
edit:
tyranid's comment seems to have the answer - if I specify the -ansi option, I get the exact same set of errors as in your example.
Setting to CW and will delete if tyranid posts an answer.