diff options
Diffstat (limited to 'configure.in')
| -rw-r--r-- | configure.in | 34 |
1 files changed, 22 insertions, 12 deletions
diff --git a/configure.in b/configure.in index 1392277539..527b076205 100644 --- a/configure.in +++ b/configure.in @@ -179,6 +179,12 @@ PGAC_ARG_BOOL(enable, spinlocks, yes, [do not use spinlocks]) # +# Atomic operations +# +PGAC_ARG_BOOL(enable, atomics, yes, + [do not use atomic operations]) + +# # --enable-debug adds -g to compiler flags # PGAC_ARG_BOOL(enable, debug, no, @@ -936,6 +942,13 @@ else *** Not using spinlocks will cause poor performance.]) fi +if test "$enable_atomics" = yes; then + AC_DEFINE(HAVE_ATOMICS, 1, [Define to 1 if you want to use atomics if available.]) +else + AC_MSG_WARN([ +*** Not using atomic operations will cause poor performance.]) +fi + if test "$with_gssapi" = yes ; then if test "$PORTNAME" != "win32"; then AC_SEARCH_LIBS(gss_init_sec_context, [gssapi_krb5 gss 'gssapi -lkrb5 -lcrypto'], [], @@ -1003,7 +1016,7 @@ AC_SUBST(UUID_LIBS) ## dnl sys/socket.h is required by AC_FUNC_ACCEPT_ARGTYPES -AC_CHECK_HEADERS([crypt.h dld.h fp_class.h getopt.h ieeefp.h ifaddrs.h langinfo.h poll.h pwd.h sys/ioctl.h sys/ipc.h sys/poll.h sys/pstat.h sys/resource.h sys/select.h sys/sem.h sys/shm.h sys/socket.h sys/sockio.h sys/tas.h sys/time.h sys/un.h termios.h ucred.h utime.h wchar.h wctype.h]) +AC_CHECK_HEADERS([atomic.h crypt.h dld.h fp_class.h getopt.h ieeefp.h ifaddrs.h langinfo.h poll.h pwd.h sys/ioctl.h sys/ipc.h sys/poll.h sys/pstat.h sys/resource.h sys/select.h sys/sem.h sys/shm.h sys/socket.h sys/sockio.h sys/tas.h sys/time.h sys/un.h termios.h ucred.h utime.h wchar.h wctype.h]) # On BSD, test for net/if.h will fail unless sys/socket.h # is included first. @@ -1467,17 +1480,6 @@ fi AC_CHECK_FUNCS([strtoll strtoq], [break]) AC_CHECK_FUNCS([strtoull strtouq], [break]) -AC_CACHE_CHECK([for builtin locking functions], pgac_cv_gcc_int_atomics, -[AC_TRY_LINK([], - [int lock = 0; - __sync_lock_test_and_set(&lock, 1); - __sync_lock_release(&lock);], - [pgac_cv_gcc_int_atomics="yes"], - [pgac_cv_gcc_int_atomics="no"])]) -if test x"$pgac_cv_gcc_int_atomics" = x"yes"; then - AC_DEFINE(HAVE_GCC_INT_ATOMICS, 1, [Define to 1 if you have __sync_lock_test_and_set(int *) and friends.]) -fi - # Lastly, restore full LIBS list and check for readline/libedit symbols LIBS="$LIBS_including_readline" @@ -1746,6 +1748,14 @@ AC_CHECK_TYPES([int8, uint8, int64, uint64], [], [], # C, but is missing on some old platforms. AC_CHECK_TYPES(sig_atomic_t, [], [], [#include <signal.h>]) +# Check for various atomic operations now that we have checked how to declare +# 64bit integers. +PGAC_HAVE_GCC__SYNC_CHAR_TAS +PGAC_HAVE_GCC__SYNC_INT32_TAS +PGAC_HAVE_GCC__SYNC_INT32_CAS +PGAC_HAVE_GCC__SYNC_INT64_CAS +PGAC_HAVE_GCC__ATOMIC_INT32_CAS +PGAC_HAVE_GCC__ATOMIC_INT64_CAS if test "$PORTNAME" != "win32" then |