[site-conf] Add the tests for the squeak vm

diff --git a/contrib/site-conf/aclocal.m4 b/contrib/site-conf/aclocal.m4
index 65b9fa3..277c895 100644 (file)
--- 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 bd5ce4d..fb342b0 100644 (file)
--- 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 (file)
index 0000000..9d16f46
--- /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)])
+