AC_SUBST(GETCONF)
])
-AC_DEFUN(ah_NUM_CPUS,
+dnl ah_GET_CONF(variable, value ..., [default])
+AC_DEFUN(ah_GET_GETCONF,
[AC_REQUIRE([ah_HAVE_GETCONF])
- AC_MSG_CHECKING([number of cpus])
- NUM_CPUS=
+ if test ! -z "$GETCONF";then
+ old_args="[$]@"
+ set -- $2
+ while eval test -z \"\$$1\" -a ! -z \"[$]1\";do
+ eval $1=`$GETCONF "[$]1" 2>/dev/null`
+ shift
+ done
+ fi
+ if eval test -z \"\$$1\" -o \"\$$1\" = "-1";then
+ eval $1="$3"
+ fi
+])
+AC_DEFUN(ah_NUM_CPUS,
+ [AC_MSG_CHECKING([number of cpus])
AC_ARG_WITH(cpus,
[ --with-cpus The number of cpus to be used for building(see --with-procs, default 1)],
- [if test "$withval" = "yes"; then
- if test ! -z "$GETCONF";then
- NUM_CPUS=`$GETCONF _NPROCESSORS_ONLN 2>/dev/null`
- fi
+ [
+ if test "$withval" = "yes"; then
+ ah_GET_GETCONF(NUM_CPUS, SC_NPROCESSORS_ONLN _NPROCESSORS_ONLN, 1)
elif test ! "$withval" = "no";then
NUM_CPUS=$withval
+ elif test "$withval" = "no";then
+ NUM_CPUS=1
fi],
- [if test ! -z "$GETCONF";then
- NUM_CPUS=`$GETCONF _NPROCESSORS_ONLN 2>/dev/null`
- ]
+ [ah_GET_GETCONF(NUM_CPUS, SC_NPROCESSORS_ONLN _NPROCESSORS_ONLN, 1)]
)
- if test -z "$NUM_CPUS"; then
+ ah_NUM_CPUS_msg="$NUM_CPUS"
+ if test "$NUM_CPUS" = "0"; then
+ # broken getconf, time to bitch.
+ ah_NUM_CPUS_msg="found 0 cpus. Has someone done a lobotomy?"
NUM_CPUS=1
fi
if test $NUM_CPUS = 1 ;then
else
default_PROC_MULTIPLY=2
fi
- AC_MSG_RESULT([$NUM_CPUS])
+ AC_MSG_RESULT([$ah_NUM_CPUS_msg])
AC_SUBST(NUM_CPUS)
])
AC_DEFUN(ah_PROC_MULTIPLY,
AC_MSG_RESULT([$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)
+])