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Diffstat (limited to 'm4/ndim-check-sh-functions.m4')
| -rw-r--r-- | m4/ndim-check-sh-functions.m4 | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/m4/ndim-check-sh-functions.m4 b/m4/ndim-check-sh-functions.m4 new file mode 100644 index 0000000..0b03dd7 --- /dev/null +++ b/m4/ndim-check-sh-functions.m4 @@ -0,0 +1,29 @@ +# version 1.11 +dnl NDIM_CHECK_SH_FUNCTIONS([ACTION-IF-SUPPORTED], +dnl [ACTION-IF-NOT-SUPPORTED)dnl +dnl +m4_pattern_forbid([NDIM_CHECK_SH_FUNCTIONS])dnl +AC_DEFUN([NDIM_CHECK_SH_FUNCTIONS],[dnl +NDIM_CHECK_SH_COMMAND_SUBSTITUTION([], [dnl +AC_MSG_ERROR([Sorry, POSIX sh with \$() required.])dnl +])dnl +AS_IF([test "x$ndim_sh_functions" = "x"], [dnl +AC_MSG_CHECKING([whether sh supports POSIX sh functions]) +ndim_sh_functions=no +test "x$(moo() { echo "meh"; }; moo)" = "xmeh" && ndim_sh_functions=yes +AC_MSG_RESULT([$ndim_sh_functions])]) +m4_ifval([$1], [ +if test "x$ndim_sh_functions" = "xyes"; then +$1 +fi +])dnl +m4_ifval([$2], [ +if test "x$ndim_sh_functions" = "xno"; then +$2 +fi +]) +])dnl +dnl +dnl Local Variables: +dnl mode: autoconf +dnl End: |