netcdf-c/oc2/ocdebug.c
Dennis Heimbigner c68c4c804d Fix undefined references when using Visual Studio
Fix Issue https://github.com/Unidata/netcdf-c/issues/1725.
Replace PR https://github.com/Unidata/netcdf-c/pull/1726
Also replace PR https://github.com/Unidata/netcdf-c/pull/1694

The general problem is that under Visual Studio, we are seeing
a number of undefined reference and other scoping errors.
The reason is that the code is not properly using Visual Studio
_declspec() declarations.

The basic solution is to ensure that when compiling the code itself
one needs to ensure that _declspec(dllexport) is used. There
are several sets of macros to handle this, but they all rely
on the flag DLL_EXPORT being define when the code is compiled,
but not being defined when the code is used via a .h file.

As a test, I modified XGetOpt.c to build properly. I also
fixed the oc2 library to properly _declspec things like ocdebug.

I also made some misc. changes to get all the tests to run
if cygwin is installed (to get bash, sed, etc).

Misc. Changes:
* Put XGetOpt.c into libsrc and copy at build time
  to the other directories where it is needed.
2020-05-18 19:36:28 -06:00

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C

/* Copyright 2018, UCAR/Unidata and OPeNDAP, Inc.
See the COPYRIGHT file for more information. */
#include "config.h"
#ifdef HAVE_STDARG_H
#include <stdarg.h>
#endif
#include "ocinternal.h"
#include "ocdebug.h"
#ifdef OCCATCHERROR
/* Place breakpoint here to catch errors close to where they occur*/
OCerror
ocbreakpoint(OCerror err) {return err;}
OCerror
occatch(OCerror err)
{
if(err == 0) return err;
return ocbreakpoint(err);
}
#endif
int
xxdrerror(void)
{
nclog(NCLOGERR,"xdr failure");
return OCCATCH(OC_EDATADDS);
}
void*
occalloc(size_t size, size_t nelems)
{
return ocmalloc(size*nelems);
}
void*
ocmalloc(size_t size)
{
void* memory = calloc(size,1); /* use calloc to zero memory*/
if(memory == NULL) nclog(NCLOGERR,"ocmalloc: out of memory");
return memory;
}
void
ocfree(void* mem)
{
if(mem != NULL) free(mem);
}
int
ocpanic(const char* fmt, ...)
{
va_list args;
if(fmt != NULL) {
va_start(args, fmt);
vfprintf(stderr, fmt, args);
fprintf(stderr, "\n" );
va_end( args );
} else {
fprintf(stderr, "panic" );
}
fprintf(stderr, "\n" );
fflush(stderr);
return 0;
}
CURLcode
ocreportcurlerror(OCstate* state, CURLcode cstat)
{
if(cstat != CURLE_OK) {
fprintf(stderr,"CURL Error: %s",curl_easy_strerror(cstat));
if(state != NULL)
fprintf(stderr," ; %s",state->error.curlerrorbuf);
fprintf(stderr,"\n");
}
fflush(stderr);
return cstat;
}