Created attachment 66631 [details]
tarball of a cnd project

Here is the code from the example.
The issues are as follows:
1) In the declaration of the squaref pointer, squaref is highlighted. This is due to #139600
2) exit() usages are highlighted
3) sleep() usages are highlighted


#include <stdio.h>
#include <dlfcn.h>

int main(int argc, char **argv) {
	void *handle;
        int i = 1;
/*	double (*cosine)(double); */
	int (*squaref)(int);
	const char *error;
/*	handle = dlopen ("/lib/libm.so.5", RTLD_LAZY); */
	handle = dlopen ("/home/gordonp/NetBeansProjects/DlopenTest_1/shared/dist/Debug/GNU-Solaris-x86/libshared.so", RTLD_LAZY);
	if (!handle) {
		fputs (dlerror(), stderr);
		exit(1);
	}

	squaref = dlsym(handle, "square");
	if ((error = dlerror()) != NULL)  {
		fputs(error, stderr);
		exit(1);
	}

        while (i > 0) {
            printf("Try %d\n", i++);
            printf("    %d\n", (*squaref)(1));
            printf("    %d\n", (*squaref)(2));
            printf("    %d\n", (*squaref)(3));
            sleep(5);
        }
	dlclose(handle);
}

The issue (1) is described in #139600

As to (2) and (3), the file in the example really does *not* include necessary headers.
Try preprocessing in with -E option and you'll see that neither exit nor sleep are declared.

GNU C compiler silently compiles such code.
Sun C compiler compiles it, but issues warnings.

So the solution for this issue is as follows:
for C files, in the case of undeclared function calls, change error message to warning.

I'm changing the summary, since (1) is just a duplicate of #139600.

This bug was reported against NetBeans IDE 6.0 or an older release, or against a non-maintained module. NetBeans team does not have enough resources to get to this issue, therefore we are closing the issue as a WONTFIX. If you are interested in providing a patch for this bug, please see our NetFIX guidelines for how to proceed. 

We apologize for any inconvenience.


Thank you.
The NetBeans Team