diff options
Diffstat (limited to 'configure')
| -rwxr-xr-x | configure | 153 |
1 files changed, 135 insertions, 18 deletions
@@ -1,5 +1,5 @@ #! /bin/sh -# From configure.in Revision: 14708 . +# From configure.in Revision: 14767 . # Guess values for system-dependent variables and create Makefiles. # Generated by GNU Autoconf 2.59. # @@ -4884,16 +4884,15 @@ fi # -# clock_gettime (rt on Debian) +# clock_gettime (optional, rt on Debian) # - -echo "$as_me:$LINENO: checking for clock_gettime in -lrt" >&5 -echo $ECHO_N "checking for clock_gettime in -lrt... $ECHO_C" >&6 -if test "${ac_cv_lib_rt_clock_gettime+set}" = set; then +echo "$as_me:$LINENO: checking for library containing clock_gettime" >&5 +echo $ECHO_N "checking for library containing clock_gettime... $ECHO_C" >&6 +if test "${ac_cv_search_clock_gettime+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6 else - ac_check_lib_save_LIBS=$LIBS -LIBS="-lrt $LIBS" + ac_func_search_save_LIBS=$LIBS +ac_cv_search_clock_gettime=no cat >conftest.$ac_ext <<_ACEOF /* confdefs.h. */ _ACEOF @@ -4938,28 +4937,146 @@ if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); }; }; then - ac_cv_lib_rt_clock_gettime=yes + ac_cv_search_clock_gettime="none required" else echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 -ac_cv_lib_rt_clock_gettime=no fi rm -f conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext -LIBS=$ac_check_lib_save_LIBS -fi -echo "$as_me:$LINENO: result: $ac_cv_lib_rt_clock_gettime" >&5 -echo "${ECHO_T}$ac_cv_lib_rt_clock_gettime" >&6 -if test $ac_cv_lib_rt_clock_gettime = yes; then - cat >>confdefs.h <<_ACEOF -#define HAVE_LIBRT 1 +if test "$ac_cv_search_clock_gettime" = no; then + for ac_lib in rt; do + LIBS="-l$ac_lib $ac_func_search_save_LIBS" + cat >conftest.$ac_ext <<_ACEOF +/* confdefs.h. */ _ACEOF +cat confdefs.h >>conftest.$ac_ext +cat >>conftest.$ac_ext <<_ACEOF +/* end confdefs.h. */ - LIBS="-lrt $LIBS" +/* Override any gcc2 internal prototype to avoid an error. */ +#ifdef __cplusplus +extern "C" +#endif +/* We use char because int might match the return type of a gcc2 + builtin and then its argument prototype would still apply. */ +char clock_gettime (); +int +main () +{ +clock_gettime (); + ; + return 0; +} +_ACEOF +rm -f conftest.$ac_objext conftest$ac_exeext +if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5 + (eval $ac_link) 2>conftest.er1 + ac_status=$? + grep -v '^ *+' conftest.er1 >conftest.err + rm -f conftest.er1 + cat conftest.err >&5 + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); } && + { ac_try='test -z "$ac_c_werror_flag" + || test ! -s conftest.err' + { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 + (eval $ac_try) 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); }; } && + { ac_try='test -s conftest$ac_exeext' + { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 + (eval $ac_try) 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); }; }; then + ac_cv_search_clock_gettime="-l$ac_lib" +break +else + echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 fi +rm -f conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext + done +fi +LIBS=$ac_func_search_save_LIBS +fi +echo "$as_me:$LINENO: result: $ac_cv_search_clock_gettime" >&5 +echo "${ECHO_T}$ac_cv_search_clock_gettime" >&6 +if test "$ac_cv_search_clock_gettime" != no; then + test "$ac_cv_search_clock_gettime" = "none required" || LIBS="$ac_cv_search_clock_gettime $LIBS" + +fi + + + +# +# CLOCK_MONOTONIC clock for clock_gettime +# Normally defines _POSIX_TIMERS > 0 and _POSIX_MONOTONIC_CLOCK (for posix +# compliant systems) and __FreeBSD_cc_version >= 500005 (for FreeBSD +# >= 5.1.0, which does not have the posix defines (ref. r11983)) would be +# checked but some systems define them even when they do not support it +# (ref. bugreport:1003). +# +if test "$ac_cv_search_clock_gettime" != "no" ; then + echo "$as_me:$LINENO: checking whether CLOCK_MONOTONIC is supported and works" >&5 +echo $ECHO_N "checking whether CLOCK_MONOTONIC is supported and works... $ECHO_C" >&6 + if test "$cross_compiling" = yes; then + + echo "$as_me:$LINENO: result: guessing no" >&5 +echo "${ECHO_T}guessing no" >&6 + + +else + cat >conftest.$ac_ext <<_ACEOF + + #include <sys/time.h> + #include <time.h> + #include <unistd.h> + + int main(int argc, char** argv) + { + struct timespec tval; + return clock_gettime(CLOCK_MONOTONIC, &tval); + } + +_ACEOF +rm -f conftest$ac_exeext +if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5 + (eval $ac_link) 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); } && { ac_try='./conftest$ac_exeext' + { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 + (eval $ac_try) 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); }; }; then + echo "$as_me:$LINENO: result: yes" >&5 +echo "${ECHO_T}yes" >&6 + CFLAGS="$CFLAGS -DHAVE_MONOTONIC_CLOCK" + +else + echo "$as_me: program exited with status $ac_status" >&5 +echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + +( exit $ac_status ) + + # either it failed to compile (CLOCK_MONOTONIC undefined) + # or clock_gettime has returned a non-zero value + echo "$as_me:$LINENO: result: no" >&5 +echo "${ECHO_T}no" >&6 + +fi +rm -f core *.core gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext +fi +fi # |