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-rw-r--r--tool/m4/ruby_default_arch.m410
1 files changed, 10 insertions, 0 deletions
diff --git a/tool/m4/ruby_default_arch.m4 b/tool/m4/ruby_default_arch.m4
new file mode 100644
index 0000000000..6efb72d297
--- /dev/null
+++ b/tool/m4/ruby_default_arch.m4
@@ -0,0 +1,10 @@
+AC_DEFUN([RUBY_DEFAULT_ARCH], [
+AC_MSG_CHECKING([arch option])
+AS_CASE([$1],
+ [*64], [ARCH_FLAG=-m64],
+ [[i[3-6]86]], [ARCH_FLAG=-m32],
+ [AC_MSG_ERROR(unknown target architecture: $target_archs)]
+ )
+AC_MSG_RESULT([$ARCH_FLAG])
+])
+dnl