diff options
Diffstat (limited to 'm4/fstypename.m4')
-rw-r--r-- | m4/fstypename.m4 | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/m4/fstypename.m4 b/m4/fstypename.m4 new file mode 100644 index 000000000..b0166c161 --- /dev/null +++ b/m4/fstypename.m4 @@ -0,0 +1,41 @@ +#serial 1 + +dnl From Jim Meyering. +dnl +dnl See if struct statfs has the f_fstypename member. +dnl If so, define HAVE_F_FSTYPENAME_IN_STATFS. +dnl + +AC_DEFUN(jm_FSTYPENAME, + [ + AC_CACHE_CHECK([for f_fstypename in struct statfs], + fu_cv_sys_f_fstypename_in_statfs, + [ + AC_TRY_COMPILE( + [ +#include <sys/types.h> +#include <sys/mount.h> + ], + [struct statfs s; int i = sizeof s.f_fstypename;], + fu_cv_sys_f_fstypename_in_statfs=yes, + fu_cv_sys_f_fstypename_in_statfs=no + ) + ] + ) + + if test $fu_cv_sys_f_fstypename_in_statfs = yes; then + if test x = y; then + # This code is deliberately never run via ./configure. + # FIXME: this is a hack to make autoheader put the corresponding + # HAVE_* undef for this symbol in config.h.in. This saves me the + # trouble of having to maintain the #undef in acconfig.h manually. + AC_CHECK_FUNCS(F_FSTYPENAME_IN_STATFS) + fi + # Defining it this way (rather than via AC_DEFINE) short-circuits the + # autoheader check -- autoheader doesn't know it's already been taken + # care of by the hack above. + ac_kludge=HAVE_F_FSTYPENAME_IN_STATFS + AC_DEFINE_UNQUOTED($ac_kludge) + fi + ] +) |