diff options
Diffstat (limited to 'm4/ndim-check-sh-command-substitution.m4')
| -rw-r--r-- | m4/ndim-check-sh-command-substitution.m4 | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/m4/ndim-check-sh-command-substitution.m4 b/m4/ndim-check-sh-command-substitution.m4 new file mode 100644 index 0000000..de2e80c --- /dev/null +++ b/m4/ndim-check-sh-command-substitution.m4 @@ -0,0 +1,26 @@ +dnl NDIM_CHECK_SH_COMMAND_SUBSTITUTION([ACTION-IF-SUPPORTED], +dnl [ACTION-IF-NOT-SUPPORTED)dnl +dnl +m4_pattern_forbid([NDIM_CHECK_SH_COMMAND_SUBSTITUTION])dnl +AC_DEFUN([NDIM_CHECK_SH_COMMAND_SUBSTITUTION],[dnl +AS_IF([test "x$ndim_sh_command_substitution" = "x"], [dnl +AC_MSG_CHECKING([\$(cmd) type sh command substition]) +ndim_sh_command_substitution=no +test "x$(pwd)" = "x`pwd`" && test "y$(echo "foobar")" = "y`echo foobar`" \ + && ndim_sh_command_substitution=yes +AC_MSG_RESULT([$ndim_sh_command_substitution])]) +m4_ifval([$1], [ +if test "x$ndim_sh_command_substitution" = "xyes"; then +$1 +fi +])dnl +m4_ifval([$2], [ +if test "x$ndim_sh_command_substitution" = "xno"; then +$2 +fi +]) +])dnl +dnl +dnl Local Variables: +dnl mode: autoconf +dnl End: |