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-rw-r--r--m4/macros/os_cppflags.m418
1 files changed, 18 insertions, 0 deletions
diff --git a/m4/macros/os_cppflags.m4 b/m4/macros/os_cppflags.m4
new file mode 100644
index 000000000000..cd8ae8ba1655
--- /dev/null
+++ b/m4/macros/os_cppflags.m4
@@ -0,0 +1,18 @@
+dnl ######################################################################
+dnl Specify additional cpp options based on the OS and the compiler
+AC_DEFUN([AMU_OS_CPPFLAGS],
+[
+AC_CACHE_CHECK(additional preprocessor flags,
+ac_cv_os_cppflags,
+[
+case "${host_os}" in
+# off for now, posix may be a broken thing for nextstep3...
+# nextstep* )
+# ac_cv_os_cppflags="-D_POSIX_SOURCE"
+# ;;
+ * ) ac_cv_os_cppflags="" ;;
+esac
+])
+CPPFLAGS="$CPPFLAGS $ac_cv_os_cppflags"
+])
+dnl ======================================================================