diff options
Diffstat (limited to 'm4/sanity.m4')
| -rw-r--r-- | m4/sanity.m4 | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/m4/sanity.m4 b/m4/sanity.m4 new file mode 100644 index 000000000..65ca99993 --- /dev/null +++ b/m4/sanity.m4 @@ -0,0 +1,19 @@ +# +# Check to make sure that the build environment is sane. +# + +AC_DEFUN(AM_SANITY_CHECK, +[AC_MSG_CHECKING([whether build environment is sane]) +echo timestamp > conftestfile +# Do this in a subshell so we don't clobber the current shell's +# arguments. FIXME: maybe try `-L' hack like GETLOADAVG test? +if (set X `ls -t $srcdir/configure conftestfile`; test "[$]2" = conftestfile) +then + # Ok. + : +else + AC_MSG_ERROR([newly created file is older than distributed files! +Check your system clock]) +fi +rm -f conftest* +AC_MSG_RESULT(yes)]) |