diff options
Diffstat (limited to 'erts/configure.in')
| -rw-r--r-- | erts/configure.in | 37 |
1 files changed, 28 insertions, 9 deletions
diff --git a/erts/configure.in b/erts/configure.in index 5fa1245b13..6278af3a2e 100644 --- a/erts/configure.in +++ b/erts/configure.in @@ -123,6 +123,14 @@ AC_ARG_ENABLE(threads, *) enable_threads=yes ;; esac ], enable_threads=unknown) +AC_ARG_ENABLE(halfword-emulator, +[ --enable-halfword-emulator enable halfword emulator (only for 64bit builds) + --disable-halfword-emulator disable halfword emulator (only for 64bit builds)], +[ case "$enableval" in + no) enable_halfword_emualtor=no ;; + *) enable_halfword_emulator=yes ;; + esac ], enable_halfword_emulator=unknown) + AC_ARG_ENABLE(smp-support, [ --enable-smp-support enable smp support --disable-smp-support disable smp support], @@ -749,6 +757,25 @@ esac AC_SUBST(LIBCARBON) +dnl Check if we should/can build a halfword emulator + +AC_MSG_CHECKING(if we are building a halfword emulator (32bit heap on 64bit machine)) +if test "$enable_halfword_emulator" = "yes"; then + if test "$ARCH" = "amd64"; then + AC_DEFINE(HALFWORD_HEAP_EMULATOR, [1], + [Define if building a halfword-heap 64bit emulator]) + AC_MSG_RESULT([yes]) + else + AC_MSG_ERROR(no; halfword emulator not supported on this architecture) + fi +else + AC_MSG_RESULT([no]) +fi + + + + + dnl some tests below will call this if we haven't already - and autoconf dnl can't handle those tests being done conditionally at runtime AC_PROG_CPP @@ -1666,7 +1693,7 @@ AC_CHECK_FUNCS([getnameinfo getipnodebyname getipnodebyaddr gethostbyname2]) AC_CHECK_FUNCS([ieee_handler fpsetmask finite isnan isinf res_gethostbyname dlopen \ pread pwrite writev memmove strerror strerror_r strncasecmp \ - gethrtime localtime_r gmtime_r mremap memcpy mallopt \ + gethrtime localtime_r gmtime_r mmap mremap memcpy mallopt \ sbrk _sbrk __sbrk brk _brk __brk \ flockfile fstat strlcpy strlcat setsid posix2time setlocale nl_langinfo poll]) if test "X$host" = "Xwin32"; then @@ -1698,7 +1725,6 @@ if test $disable_vfork = true; then fi AC_FUNC_VPRINTF -AC_FUNC_MMAP dnl The AC_DEFINEs are necessary for autoheader to work. :-( dnl for gzio @@ -3702,13 +3728,6 @@ dnl so it is - be adoptable fi ;; *) - if test "$cross_compiling" = "yes"; then - case "$with_ssl" in - "$erl_xcomp_sysroot"*) ;; - *) AC_MSG_ERROR([Invalid path to option --with-ssl=PATH (not a subdirectory to cross system root)]);; - esac - fi - # Option given with PATH to package if test ! -d "$with_ssl" ; then AC_MSG_ERROR(Invalid path to option --with-ssl=PATH) |