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-rw-r--r--Zend/Zend.m41
1 files changed, 1 insertions, 0 deletions
diff --git a/Zend/Zend.m4 b/Zend/Zend.m4
index d64d580724..9da6a53e4c 100644
--- a/Zend/Zend.m4
+++ b/Zend/Zend.m4
@@ -183,6 +183,7 @@ dnl extra check to avoid C++ preprocessor testing if in non-ZTS mode
if test "$ZEND_EXPERIMENTAL_ZTS" = "yes"; then
AC_PROG_CXX
+AC_PROG_CXXCPP
AC_LANG_CPLUSPLUS
AC_CHECK_HEADER(stdiostream.h, [ AC_DEFINE(HAVE_STDIOSTREAM_H, [], Whether you have stdiostream.h) ])