AC_DEFUN(ah_HAVE_GETCONF, [AC_ARG_WITH(getconf, [ --with-getconf Enable automagical buildtime configuration], [if test "$withval" = "yes"; then AC_PATH_PROG(GETCONF, getconf) elif test ! "$withval" = "no";then AC_MSG_CHECKING([getconf]) AC_MSG_RESULT([$withval]) GETCONF=$withval fi], [AC_PATH_PROG(GETCONF, getconf)] ) AC_SUBST(GETCONF) ]) dnl ah_GET_CONF(variable, value ..., [default]) AC_DEFUN(ah_GET_GETCONF, [AC_REQUIRE([ah_HAVE_GETCONF]) 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 ah_GET_GETCONF(NUM_CPUS, SC_NPROCESSORS_ONLN _NPROCESSORS_ONLN, 1) elif test ! "$withval" = "no";then NUM_CPUS=$withval elif test "$withval" = "no";then NUM_CPUS=1 fi], [ah_GET_GETCONF(NUM_CPUS, SC_NPROCESSORS_ONLN _NPROCESSORS_ONLN, 1)] ) ah_NUM_CPUS_msg="$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 $NUM_CPUS = 1 ;then default_PROC_MULTIPLY=1 else default_PROC_MULTIPLY=2 fi AC_MSG_RESULT([$ah_NUM_CPUS_msg]) AC_SUBST(NUM_CPUS) ]) AC_DEFUN(ah_PROC_MULTIPLY, [AC_REQUIRE([ah_NUM_CPUS]) AC_MSG_CHECKING([processor multiplier]) AC_ARG_WITH(proc-multiply, [ --with-proc-multiply Multiply this * number of cpus for parallel making(default 2).], [if test "$withval" = "yes"; then PROC_MULTIPLY=$default_PROC_MULTIPLY elif test ! "$withval" = "no";then PROC_MULTIPLY=$withval fi], [PROC_MULTIPLY=$default_PROC_MULTIPLY] ) AC_MSG_RESULT([$PROC_MULTIPLY]) AC_SUBST(PROC_MULTIPLY) ]) 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_ARG_WITH(procs, [ --with-procs The number of processes to run in parallel during make(num_cpus * multiplier).], [if test "$withval" = "yes"; then NUM_PROCS=`expr $NUM_CPUS \* $PROC_MULTIPLY` elif test ! "$withval" = "no";then NUM_PROCS=$withval fi], [NUM_PROCS=`expr $NUM_CPUS \* $PROC_MULTIPLY`] ) AC_MSG_RESULT([$NUM_PROCS]) AC_SUBST(NUM_PROCS) ]) AC_DEFUN(ah_GLIBC_VER, [AC_MSG_CHECKING([glibc version]) dummy=if$$ cat <<_GLIBC_>$dummy.c #include <features.h> #include <stdio.h> int main(int argc, char **argv) { printf("libc6.%d",__GLIBC_MINOR__); exit(0); } _GLIBC_ ${CC-cc} $dummy.c -o $dummy if test "$?" = 0; then GLIBC_VER=`./$dummy` AC_MSG_RESULT([$GLIBC_VER]) GLIBC_VER="-$GLIBC_VER" else AC_MSG_WARN([cannot determine GNU C library minor version number]) fi rm -f $dummy $dummy.c AC_SUBST(GLIBC_VER) ]) AC_DEFUN(ah_LIBSTDCPP_VER, [AC_MSG_CHECKING([libstdc++ version]) dummy=if$$ cat <<_LIBSTDCPP_>$dummy.cc #include <features.h> #include <stdio.h> int main(int argc, char **argv) { exit(0); } _LIBSTDCPP_ ${CXX-c++} $dummy.cc -o $dummy if test "$?" = 0; then soname=`objdump -p ./$dummy |grep NEEDED|grep libstd` LIBSTDCPP_VER=`echo $soname | sed -e 's/.*NEEDED.*libstdc++-libc.*-\(.*\).so.\(.*\)/\2-\1/'` fi rm -f $dummy $dummy.cc if test -z "$LIBSTDCPP_VER"; then AC_MSG_WARN([cannot determine standard C++ library version number]) else AC_MSG_RESULT([$LIBSTDCPP_VER]) LIBSTDCPP_VER="-$LIBSTDCPP_VER" fi AC_SUBST(LIBSTDCPP_VER) ])