In Rocky Linux 9.2 got error "unknown type name ‘bool’"

[rodolfojcj]

When using the DAHDI linux complete 3.2.0 tar.gz file or the master branch sources, trying to compile the tools component on Rocky Linux 9.2 fails with error messages like these:

dahdi_cfg.c:148:8: error: unknown type name ‘bool’
  148 | static bool _are_all_spans_assigned(const char *device_path)
      |        ^~~~
dahdi_cfg.c: In function ‘_are_all_spans_assigned’:
dahdi_cfg.c:162:24: error: ‘false’ undeclared (first use in this function)
  162 |                 return false;
      |                        ^~~~~
dahdi_cfg.c:53:1: note: ‘false’ is defined in header ‘<stdbool.h>’; did you forget to ‘#include <stdbool.h>’?
   52 | #include "dahdi_tools_version.h"
  +++ |+#include <stdbool.h>
   53 | 
dahdi_cfg.c:162:24: note: each undeclared identifier is reported only once for each function it appears in
  162 |                 return false;
      |                        ^~~~~
dahdi_cfg.c:182:43: error: ‘true’ undeclared (first use in this function)
  182 |         return (span_count > 0) ? false : true;
      |                                           ^~~~
dahdi_cfg.c:182:43: note: ‘true’ is defined in header ‘<stdbool.h>’; did you forget to ‘#include <stdbool.h>’?
dahdi_cfg.c: At top level:
dahdi_cfg.c:191:8: error: unknown type name ‘bool’
  191 | static bool are_all_spans_assigned(void)
      |        ^~~~
dahdi_cfg.c: In function ‘are_all_spans_assigned’:
dahdi_cfg.c:195:9: error: unknown type name ‘bool’
  195 |         bool res = true;
      |         ^~~~
dahdi_cfg.c:195:9: note: ‘bool’ is defined in header ‘<stdbool.h>’; did you forget to ‘#include <stdbool.h>’?
dahdi_cfg.c:195:20: error: ‘true’ undeclared (first use in this function)
  195 |         bool res = true;
      |                    ^~~~
dahdi_cfg.c:195:20: note: ‘true’ is defined in header ‘<stdbool.h>’; did you forget to ‘#include <stdbool.h>’?
dahdi_cfg.c: At top level:
dahdi_cfg.c:226:8: error: unknown type name ‘bool’
  226 | static bool wait_for_all_spans_assigned(unsigned long timeout_sec)
      |        ^~~~
dahdi_cfg.c: In function ‘wait_for_all_spans_assigned’:
dahdi_cfg.c:228:9: error: unknown type name ‘bool’
  228 |         bool all_assigned = are_all_spans_assigned();
      |         ^~~~
dahdi_cfg.c:228:9: note: ‘bool’ is defined in header ‘<stdbool.h>’; did you forget to ‘#include <stdbool.h>’?
dahdi_cfg.c: In function ‘main’:
dahdi_cfg.c:1596:17: error: unknown type name ‘bool’
 1596 |                 bool all_assigned = wait_for_all_spans_assigned(5);
      |                 ^~~~
dahdi_cfg.c:1596:17: note: ‘bool’ is defined in header ‘<stdbool.h>’; did you forget to ‘#include <stdbool.h>’?
make[3]: *** [Makefile:985: dahdi_cfg.o] Error 1

The running Linux kernel version looks like this:

Linux localhost.localdomain 5.14.0-284.25.1.el9_2.x86_64 #1 SMP PREEMPT_DYNAMIC Wed Aug 2 14:53:30 UTC 2023 x86_64 x86_64 x86_64 GNU/Linux

[rodolfojcj]

The possible cause of the error is the same already detailed in the comment at asterisk/dahdi-linux#36 (comment) for the related dahdi-linux component.

[rodolfojcj]

The attached file dahdi-tools-issue-17-fix-24sept2023.zip has a possible fix to this issue.

I tested it with:

• Ubuntu 23.04, kernel 6.2.0-20-generic
• Ubuntu 22.10, kernel 5.19.0-43-generic
• Ubuntu 22.04, kernel 5.15.0-73-generic
• Ubuntu 20.04, kernel 5.4.0-150-generic
• Ubuntu 18.04, kernel 4.15.0-212-generic
• Ubuntu 16.04, kernel 4.4.0-210-generic
• Debian 12, kernel 6.1.0-10-amd64
• Debian 11, kernel 5.10.0-23-amd64
• Debian 10, kernel 4.19.0-24-amd64
• CentOS 7.9.2009 3.10.0-1160.95.1.el7.x86_64
• Rocky Linux 9.2, kernel 5.14.0-284.25.1.el9_2.x86_64
• Rocky Linux 8.8, kernel 4.18.0-477.21.1.el8_8.x86_64

In all those cases the compilation is successful.

Thanks in advance for any developer of this project that may review and possibly apply this fix for the master branch.