* installing *source* package ‘read.dbc’ ...
** this is package ‘read.dbc’ version ‘1.1.1’
** using staged installation
** libs
using C compiler: ‘Debian clang version 21.1.5 (1)’
clang-21 -std=gnu23 -I"/home/hornik/tmp/R-d-clang-21/include" -DNDEBUG   -I/usr/local/include -DUSE_TYPE_CHECKING_STRICT -D_FORTIFY_SOURCE=3   -fpic  -g -O3 -Wall -pedantic -c blast.c -o blast.o
clang-21 -std=gnu23 -I"/home/hornik/tmp/R-d-clang-21/include" -DNDEBUG   -I/usr/local/include -DUSE_TYPE_CHECKING_STRICT -D_FORTIFY_SOURCE=3   -fpic  -g -O3 -Wall -pedantic -c dbc2dbf.c -o dbc2dbf.o
clang-21 -std=gnu23 -I"/home/hornik/tmp/R-d-clang-21/include" -DNDEBUG   -I/usr/local/include -DUSE_TYPE_CHECKING_STRICT -D_FORTIFY_SOURCE=3   -fpic  -g -O3 -Wall -pedantic -c dbf2dbc.c -o dbf2dbc.o
dbf2dbc.c:56:5: error: use of undeclared identifier 'uint16_t'
   56 |     uint16_t header_size = header_bytes[0] | (header_bytes[1] << 8);
      |     ^~~~~~~~
dbf2dbc.c:60:54: error: use of undeclared identifier 'header_size'
   60 |     unsigned char *hdr_buf = (unsigned char *)malloc(header_size);
      |                                                      ^~~~~~~~~~~
dbf2dbc.c:67:27: error: use of undeclared identifier 'header_size'
   67 |     if (fread(hdr_buf, 1, header_size, in.f) != header_size) {
      |                           ^~~~~~~~~~~
dbf2dbc.c:67:49: error: use of undeclared identifier 'header_size'
   67 |     if (fread(hdr_buf, 1, header_size, in.f) != header_size) {
      |                                                 ^~~~~~~~~~~
dbf2dbc.c:74:28: error: use of undeclared identifier 'header_size'
   74 |     if (fwrite(hdr_buf, 1, header_size, out.f) != header_size) {
      |                            ^~~~~~~~~~~
dbf2dbc.c:74:51: error: use of undeclared identifier 'header_size'
   74 |     if (fwrite(hdr_buf, 1, header_size, out.f) != header_size) {
      |                                                   ^~~~~~~~~~~
6 errors generated.
make: *** [/home/hornik/tmp/R-d-clang-21/etc/Makeconf:202: dbf2dbc.o] Error 1
ERROR: compilation failed for package ‘read.dbc’
* removing ‘/srv/hornik/tmp/CRAN_pretest/read.dbc.Rcheck/read.dbc’