# 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 4
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 "$ac_cxx_cstdint_tr1_cstdint"],[
+ AC_COMPILE_IFELSE([
+ AC_LANG_PROGRAM([#include <boost/cstdint.hpp>], [ uint32_t t ])],
+ [ac_cxx_cstdint_boost_cstdint_hpp="<boost/cstdint.hpp>"])
+ ])
+ ])
AC_LANG_POP
AX_RESTORE_FLAGS
[test -n "$ac_cxx_cstdint_boost_cstdint_hpp"], [ac_cv_cxx_cstdint=$ac_cxx_cstdint_boost_cstdint_hpp])
])
- AS_IF([test -n "$ac_cv_cxx_cstdint"], [AC_MSG_RESULT([$ac_cv_cxx_cstdint])], [
+ AS_IF([test -n "$ac_cv_cxx_cstdint"], [:], [
ac_cv_cxx_cstdint="<stdint.h>"
AC_MSG_WARN([Could not find a cstdint header.])
- AC_MSG_RESULT([$ac_cv_cxx_cstdint])
])
AC_DEFINE_UNQUOTED([CSTDINT_H],[$ac_cv_cxx_cstdint], [the location of <cstdint>])