Signed-off-by: Karel Zak <kzak@redhat.com>
dnl Convert some ac_cv_header_* variables to have_*
dnl
+have_linux_version_h=$ac_cv_header_linux_version_h
have_linux_blkzoned_h=$ac_cv_header_linux_blkzoned_h
have_linux_btrfs_h=$ac_cv_header_linux_btrfs_h
have_linux_raw_h=$ac_cv_header_linux_raw_h
have_sys_signalfd_h=$ac_cv_header_sys_signalfd_h
have_utmpx_h=$ac_cv_header_utmpx_h
+AS_CASE([$linux_os:$have_linux_version_h],
+ [yes:no],
+ [AC_MSG_ERROR([kernel headers required on Linux])]
+)
+
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
#include <time.h>
#include <unistd.h>