Global use of the compiler option '-isystem' was removed from the top
level Makefile with Linux commit ('isystem: delete global -isystem
compile option'
04e85bbf7). This results with an error due to not
finding "stdarg.h" when building the openafs kernel module.
.../src/rx/rx_kcommon.h:143:12: fatal error: stdarg.h: No such file or
directory
143 | # include "stdarg.h"
| ^~~~~~~~~~
Linux-5.15, introduced a copy of stdarg.h as 'linux/stdarg.h' in commit
('isystem: ship and use stdarg.h'
c0891ac15)
Add a test for the linux/stdarg.h include file and if available, use
"linux/stdarg.h" instead of "stdarg.h" within the Linux kernel module.
Change-Id: I5215182c8240034bd739688a88a9410b74f93c8f
Reviewed-on: https://gerrit.openafs.org/14844
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Benjamin Kaduk <kaduk@mit.edu>
AC_CHECK_LINUX_HEADER([seq_file.h])
AC_CHECK_LINUX_HEADER([sched/signal.h])
AC_CHECK_LINUX_HEADER([uaccess.h])
+AC_CHECK_LINUX_HEADER([stdarg.h])
])
# if defined(AFS_FBSD_ENV)
# include "machine/stdarg.h"
# else
-# include "stdarg.h"
+# if defined(HAVE_LINUX_STDARG_H)
+# include "linux/stdarg.h"
+# else
+# include "stdarg.h"
+# endif
# endif
#endif
#ifdef KERNEL