diff options
| -rw-r--r-- | contrib/site-conf/aclocal.m4 | 1 | ||||
| -rw-r--r-- | contrib/site-conf/configure.ac | 4 | ||||
| -rw-r--r-- | contrib/site-conf/m4/squeak.m4 | 15 |
3 files changed, 20 insertions, 0 deletions
diff --git a/contrib/site-conf/aclocal.m4 b/contrib/site-conf/aclocal.m4 index 65b9fa316a..277c895a37 100644 --- a/contrib/site-conf/aclocal.m4 +++ b/contrib/site-conf/aclocal.m4 @@ -53,3 +53,4 @@ m4_include([m4/ssh.m4]) m4_include([m4/startupnotification.m4]) m4_include([m4/sudo.m4]) m4_include([m4/xffm.m4]) +m4_include([m4/squeak.m4]) diff --git a/contrib/site-conf/configure.ac b/contrib/site-conf/configure.ac index bd5ce4dfad..fb342b061a 100644 --- a/contrib/site-conf/configure.ac +++ b/contrib/site-conf/configure.ac @@ -8,4 +8,8 @@ AC_GNU_SOURCE OE_CHECK_BUILTIN OE_CHECK_GNU +AC_C_DOUBLE_ALIGNMENT +AC_C_DOUBLE_ORDER + + AC_OUTPUT([]) diff --git a/contrib/site-conf/m4/squeak.m4 b/contrib/site-conf/m4/squeak.m4 new file mode 100644 index 0000000000..9d16f468b4 --- /dev/null +++ b/contrib/site-conf/m4/squeak.m4 @@ -0,0 +1,15 @@ +# Tests from squeak +AC_DEFUN([AC_C_DOUBLE_ALIGNMENT], +[AC_CACHE_CHECK([whether unaligned access to doubles is ok], ac_cv_double_align, + AC_TRY_RUN([f(int i){*(double *)i=*(double *)(i+4);} + int main(){char b[[12]];f(b);return 0;}], + ac_cv_double_align="yes", ac_cv_double_align="no")) +test "$ac_cv_double_align" = "no" && AC_DEFINE(DOUBLE_WORD_ALIGNMENT)]) + +AC_DEFUN([AC_C_DOUBLE_ORDER], +[AC_CACHE_CHECK([whether doubles are stored in Squeak order], ac_cv_double_order, + AC_TRY_RUN([union { double d; int i[[2]]; } d; + int main(void) { d.d= 1.0; return d.i[[0]] == 0; }], + ac_cv_double_order="yes", ac_cv_double_order="no")) +test "$ac_cv_double_order" = "no" && AC_DEFINE(DOUBLE_WORD_ORDER)]) + |