137 lines
3.3 KiB
Plaintext
137 lines
3.3 KiB
Plaintext
AC_DEFUN([AC_DEFINE_DIR], [
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test "x$prefix" = xNONE && prefix="$ac_default_prefix"
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test "x$exec_prefix" = xNONE && exec_prefix='${prefix}'
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last_ac_define_dir=`eval echo [$]$2`
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ac_define_dir=`eval echo [$]last_ac_define_dir`
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ac_define_dir_counter=0
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while test "x[$]last_ac_define_dir" != "x[$]ac_define_dir"; do
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last_ac_define_dir="[$]ac_define_dir"
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ac_define_dir=`eval echo [$]last_ac_define_dir`
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AS_VAR_ARITH([ac_define_dir_counter], [$ac_define_dir_counter + 1])
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AS_VAR_IF([ac_define_dir_counter], [128],
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[AC_MSG_ERROR([detected recusive directory expansion when expanding $1=[$]$2: [$]ac_define_dir])
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break])
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done
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$1="$ac_define_dir"
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AC_SUBST($1)
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ifelse($3, ,
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AC_DEFINE_UNQUOTED($1, "$ac_define_dir"),
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AC_DEFINE_UNQUOTED($1, "$ac_define_dir", $3))
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])
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AC_DEFUN([AC_SUBST_DIR], [
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ifelse($2,,,$1="[$]$2")
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$1=`(
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test "x$prefix" = xNONE && prefix="$ac_default_prefix"
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test "x$exec_prefix" = xNONE && exec_prefix="${prefix}"
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eval echo \""[$]$1"\"
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)`
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AC_SUBST($1)
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])
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dnl CHARYBDIS_C_GCC_TRY_FLAGS(<warnings>,<cachevar>)
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AC_DEFUN([CHARYBDIS_C_GCC_TRY_FLAGS],[
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AC_MSG_CHECKING([GCC flag(s) $1])
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if test "${GCC-no}" = yes
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then
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AC_CACHE_VAL($2,[
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oldcflags="${CXXFLAGS-}"
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CXXFLAGS="${CXXFLAGS-} ${CWARNS} $1 -Werror"
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AC_TRY_COMPILE([
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#include <string.h>
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#include <stdio.h>
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int main(void);
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],[
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(void)strcmp("a","b"); fprintf(stdout,"test ok\n");
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], [$2=yes], [$2=no])
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CXXFLAGS="${oldcflags}"])
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if test "x$$2" = xyes; then
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CWARNS="${CWARNS}$1 "
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AC_MSG_RESULT(ok)
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else
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$2=''
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AC_MSG_RESULT(no)
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fi
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else
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AC_MSG_RESULT(no, not using GCC)
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fi
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])
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AC_DEFUN([RB_CHECK_TIMER_CREATE],[AC_CACHE_CHECK([for a working timer_create(CLOCK_REALTIME)],
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[rb__cv_timer_create_works], [AC_TRY_RUN([
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#ifdef HAVE_TIME_H
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#include <time.h>
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#endif
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#ifdef HAVE_SIGNAL_H
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#include <signal.h>
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#endif
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#ifdef HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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int main(int argc, char *argv[])
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{
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#if HAVE_TIMER_CREATE
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struct sigevent ev;
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timer_t timer;
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ev.sigev_notify = SIGEV_SIGNAL;
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ev.sigev_signo = SIGVTALRM;
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if (timer_create(CLOCK_REALTIME, &ev, &timer) != 0) {
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return 1;
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}
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#else
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return 1;
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#endif
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return 0;
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}
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],
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[rb__cv_timer_create_works=yes],
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[rb__cv_timer_create_works=no],
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[rb__cv_timer_create_works=no])
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])
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case $rb__cv_timer_create_works in
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yes) AC_DEFINE([USE_TIMER_CREATE], 1,
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[Define to 1 if we can use timer_create(CLOCK_REALTIME,...)]);;
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esac
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])
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AC_DEFUN([RB_CHECK_TIMERFD_CREATE], [AC_CACHE_CHECK([for a working timerfd_create(CLOCK_REALTIME)],
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[rb__cv_timerfd_create_works], [AC_TRY_RUN([
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#ifdef HAVE_TIME_H
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#include <time.h>
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#endif
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#ifdef HAVE_SIGNAL_H
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#include <signal.h>
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#endif
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#ifdef HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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#ifdef HAVE_SYS_TIMERFD_H
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#include <sys/timerfd.h>
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#endif
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int main(int argc, char *argv[])
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{
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#if defined(HAVE_TIMERFD_CREATE) && defined(HAVE_SYS_TIMERFD_H)
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if (timerfd_create(CLOCK_REALTIME, 0) < 0) {
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return 1;
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}
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#else
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return 1;
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#endif
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return 0;
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}
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],
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[rb__cv_timerfd_create_works=yes],
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[rb__cv_timerfd_create_works=no],
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[rb__cv_timerfd_create_works=no])
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])
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case $rb__cv_timerfd_create_works in
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yes) AC_DEFINE([USE_TIMERFD_CREATE], 1,
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[Define to 1 if we can use timerfd_create(CLOCK_REALTIME,...)]);;
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esac
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])
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