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authorBjörn Gustavsson <[email protected]>2010-10-18 16:39:59 +0200
committerBjörn Gustavsson <[email protected]>2011-01-17 15:23:38 +0100
commite31af112f63b11622d6a3a49cb444d5613af2f1f (patch)
tree99972deacdd447774d5892bccc06389843885f48 /erts/configure.in
parentec325cc785916c6a4991fe2e03747a97b7e1ae75 (diff)
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Pass the external word size to the beam_makeops script
Giving the beam_makeops script access to the external word size (=the size of instruction words) will allow it to pack more operands into a word for the 64 bits emulator.
Diffstat (limited to 'erts/configure.in')
-rw-r--r--erts/configure.in5
1 files changed, 5 insertions, 0 deletions
diff --git a/erts/configure.in b/erts/configure.in
index 6e983a07b0..627f734409 100644
--- a/erts/configure.in
+++ b/erts/configure.in
@@ -580,6 +580,11 @@ AC_SUBST(WFLAGS)
AC_SUBST(CFLAG_RUNTIME_LIBRARY_PATH)
AC_CHECK_SIZEOF(void *) # Needed for ARCH and smp checks below
+if test "x$ac_cv_sizeof_void_p" = x8; then
+ AC_SUBST(EXTERNAL_WORD_SIZE, 64)
+else
+ AC_SUBST(EXTERNAL_WORD_SIZE, 32)
+fi
dnl
dnl Figure out operating system and cpu architecture