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#ifdef HAVE_LIBZ
#include <zlib.h>
int main()
{
unsigned long compressedSize = 0;
unsigned char cd[100];
const unsigned char ud[100] = "";
unsigned long uncompressedSize = 0;
// Call zlib's compress function.
if(compress(cd, &compressedSize, ud, uncompressedSize) != Z_OK)
{
return 0;
}
return 1;
}
#endif
#ifdef HAVE_LIBJPEG
#include <stdio.h>
#include <jpeglib.h>
int main()
{
struct jpeg_decompress_struct cinfo;
jpeg_create_decompress(&cinfo);
jpeg_read_header(&cinfo, TRUE);
return 1;
}
#endif
#ifdef HAVE_LIBPNG
#include <png.h>
int main()
{
png_structp png_ptr = png_create_read_struct
(PNG_LIBPNG_VER_STRING, (png_voidp)NULL,
NULL, NULL);
png_infop info_ptr = png_create_info_struct(png_ptr);
png_set_sig_bytes(png_ptr, 8);
png_read_info(png_ptr, info_ptr);
return 0;
}
#endif
#ifdef HAVE_PNG_H
#include <png.h>
int main() { retunr 0;}
#endif
#ifdef HAVE_PNG_GET_VALID
#include <png.h>
int main()
{
png_structp png_ptr = png_create_read_struct
(PNG_LIBPNG_VER_STRING, (png_voidp)NULL,
NULL, NULL);
png_infop info_ptr = png_create_info_struct(png_ptr);
png_get_valid(png_ptr, info_ptr, PNG_INFO_tRNS);
return 0;
}
#endif
#ifdef HAVE_PNG_SET_TRNS_TO_ALPHA
#include <png.h>
int main()
{
png_structp png_ptr = png_create_read_struct
(PNG_LIBPNG_VER_STRING, (png_voidp)NULL,
NULL, NULL);
png_set_tRNS_to_alpha(png_ptr);
return 0;
}
#endif
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