m4/Mk.m4

   1 # arch-tag: ace75c56-7f84-4e88-b2d4-31fada4e6122
   2
   3 AC_DEFUN([BHMK_MAKE_CHECK],[
   4
   5 AC_PROG_MAKE_SET
   6 AC_MSG_CHECKING([whether ${MAKE-make} supports per-target variable appending])
   7 AC_CACHE_VAL(ac_cv_prog_make_target_var_append,
   8 [cat >conftest.make <<\_ACEOF
   9 foo = bar
  10 all: foo += baz
  11 all:
  12         @echo 'ac_maketemp="${foo}"'
  13 _ACEOF
  14 # GNU make sometimes prints "make[1]: Entering...", which would confuse us.
  15 eval `${MAKE-make} -f conftest.make 2>/dev/null | grep temp=`
  16 if test -n "$ac_maketemp"; then
  17   eval ac_cv_prog_make_target_var_append=yes
  18 else
  19   eval ac_cv_prog_make_target_var_append=no
  20 fi
  21 rm -f conftest.make])
  22 if eval "test \"`echo '$ac_cv_prog_make_target_var_append'`\" = yes"; then
  23   AC_MSG_RESULT([yes])
  24 else
  25   AC_MSG_RESULT([no])
  26 fi
  27 MAKE_TARGET_VAR_APPEND=$ac_cv_prog_make_target_var_append
  28 AC_SUBST([MAKE_TARGET_VAR_APPEND])
  29
  30 ])