-AC_DEFUN(ah_HAVE_GETCONF,
+AC_DEFUN([ah_HAVE_GETCONF],
[AC_ARG_WITH(getconf,
[ --with-getconf Enable automagical buildtime configuration],
[if test "$withval" = "yes"; then
])
dnl ah_GET_CONF(variable, value ..., [default])
-AC_DEFUN(ah_GET_GETCONF,
+AC_DEFUN([ah_GET_GETCONF],
[AC_REQUIRE([ah_HAVE_GETCONF])
if test ! -z "$GETCONF";then
old_args="[$]@"
eval $1="$3"
fi
])
-AC_DEFUN(ah_NUM_CPUS,
+AC_DEFUN([ah_NUM_CPUS],
[AC_MSG_CHECKING([number of cpus])
AC_ARG_WITH(cpus,
[ --with-cpus The number of cpus to be used for building(see --with-procs, default 1)],
AC_MSG_RESULT([$ah_NUM_CPUS_msg])
AC_SUBST(NUM_CPUS)
])
-AC_DEFUN(ah_PROC_MULTIPLY,
+AC_DEFUN([ah_PROC_MULTIPLY],
[AC_REQUIRE([ah_NUM_CPUS])
AC_MSG_CHECKING([processor multiplier])
AC_ARG_WITH(proc-multiply,
AC_SUBST(PROC_MULTIPLY)
])
-AC_DEFUN(ah_NUM_PROCS,
+AC_DEFUN([ah_NUM_PROCS],
[AC_REQUIRE([ah_PROC_MULTIPLY])
AC_REQUIRE([ah_NUM_CPUS])
AC_MSG_CHECKING([number of processes to run during make])
AC_MSG_RESULT([$NUM_PROCS])
AC_SUBST(NUM_PROCS)
])
+
+AC_DEFUN([ah_GCC3DEP],[
+ AC_MSG_CHECKING(if $CXX -MD works)
+ touch gcc3dep.cc
+ ${CXX-c++} -MD -o gcc3dep_test.o -c gcc3dep.cc
+ rm -f gcc3dep.cc gcc3dep_test.o
+ if test -e gcc3dep.d; then
+ rm -f gcc3dep.d
+ GCC_MD=input
+ GCC3DEP=
+ elif test -e gcc3dep_test.d; then
+ rm -f gcc3dep_test.d
+ GCC_MD=output
+ GCC3DEP=yes
+ else
+ AC_MSG_ERROR(no)
+ fi
+ AC_MSG_RESULT([yes, for $GCC_MD])
+ AC_SUBST(GCC3DEP)
+])