blob: d1f05cb47ac76470434880e068b4a88592cd5cb8 (
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--- nsprpub/configure.in
+++ nsprpub/configure.in
@@ -57,7 +57,7 @@
USE_USER_PTHREADS=
USE_NSPR_THREADS=
USE_N32=
-USE_64=
+USE_64=maybe
USE_CPLUS=
USE_IPV6=
USE_MDUPDATE=
@@ -222,11 +222,26 @@
fi ])
AC_ARG_ENABLE(64bit,
- [ --enable-64bit Enable 64-bit support (on certain platforms)],
- [ if test "$enableval" = "yes"; then
- USE_64=1
+ [ --disable-64bit Disable 64-bit support (on 64-bit platforms)],
+ [ if test "$enableval" = "no"; then
+ USE_64=
+ else
+ USE_64=1
fi ])
+if test "${USE_64}"; then
+ AC_MSG_CHECKING(for 64-bit OS)
+ AC_TRY_COMPILE([],[int assert[(sizeof(long) == 8) ? 1: -1]],
+ result="yes", result="no")
+ AC_MSG_RESULT("$result")
+ if test "$result" = "no" && test "$USE_64" = 1; then
+ AC_MSG_ERROR([Can't --enable-64bit on non 64-bit platforms])
+ fi
+ if test "$result" = "yes"; then
+ USE_64=1
+ fi
+fi
+
AC_ARG_ENABLE(mdupdate,
[ --enable-mdupdate Enable use of certain compilers' mdupdate feature],
[ if test "$enableval" = "yes"; then
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