# modified version of the Autoconf Macro, you may extend this special
# exception to the GPL to apply to your modified version as well.
-#serial 2
+#serial 3
AC_DEFUN([AX_CXX_CSTDINT], [
CXXFLAGS="${CXX_STANDARD} ${CXXFLAGS}"
AC_COMPILE_IFELSE([
- AC_LANG_PROGRAM([#include <cstdint>], [ uint32_t t ])],
+ AC_LANG_PROGRAM([#include <cstdint>], [
+ uint32_t t
+ ])],
[ac_cxx_cstdint_cstdint="<cstdint>"])
- AC_COMPILE_IFELSE([
- AC_LANG_PROGRAM([#include <tr1/cstdint>], [ uint32_t t ])],
- [ac_cxx_cstdint_tr1_cstdint="<tr1/cstdint>"])
+ AS_IF([test -z "$ac_cxx_cstdint_cstdint"],[
+ AC_COMPILE_IFELSE([
+ AC_LANG_PROGRAM([#include <tr1/cstdint>], [ uint32_t t ])],
+ [ac_cxx_cstdint_tr1_cstdint="<tr1/cstdint>"])
- AC_COMPILE_IFELSE([
- AC_LANG_PROGRAM([#include <boost/cstdint.hpp>], [ uint32_t t ])],
- [ac_cxx_cstdint_boost_cstdint_hpp="<boost/cstdint.hpp>"])
+ AS_IF([test -z "$ac_cxx_cstdint_tr1_cstdint"],[
+ AC_COMPILE_IFELSE([
+ AC_LANG_PROGRAM([#include <boost/cstdint.hpp>], [ uint32_t t ])],
+ [ac_cxx_cstdint_boost_cstdint_hpp="<boost/cstdint.hpp>"])
+ ])
+ ])
AC_LANG_POP
AX_RESTORE_FLAGS