# modified version of the Autoconf Macro, you may extend this special
# exception to the GPL to apply to your modified version as well.
-#serial 1
+#serial 2
-AC_DEFUN([AX_CXX_CSTDINT],
- [
+AC_DEFUN([AX_CXX_CSTDINT], [
AC_REQUIRE([AC_PROG_CXX])
AC_REQUIRE([AC_PROG_CXXCPP])
- AC_MSG_CHECKING(the location of cstdint)
- AC_LANG_PUSH([C++])
- save_CXXFLAGS="${CXXFLAGS}"
- CXXFLAGS="${CXX_STANDARD} ${CXXFLAGS}"
- ac_cv_cxx_cstdint=""
+ AC_CACHE_CHECK([for location of cstdint], [ac_cv_cxx_cstdint], [
+ AC_LANG_PUSH([C++])
+ save_CXXFLAGS="${CXXFLAGS}"
+ CXXFLAGS="${CXX_STANDARD} ${CXXFLAGS}"
- AC_LANG_PUSH([C++])
-# AC_CACHE_CHECK([for location of cstdint], [ac_cv_cxx_cstdint],
-# [
-# Look for cstdint
- AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <cstdint>], [ uint32_t t ])],
- [ac_cv_cxx_cstdint="<cstdint>"],
- [
-# Look for tr1/cstdint
- AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <tr1/cstdint>], [ uint32_t t ])],
- [ac_cv_cxx_cstdint="<tr1/cstdint>"],
- [
-# Look for boost/cstdint.hpp
- AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <boost/cstdint.hpp>], [ uint32_t t ])],
- [ac_cv_cxx_cstdint="<boost/cstdint.hpp>"])
+ AC_COMPILE_IFELSE([
+ AC_LANG_PROGRAM([#include <cstdint>], [ uint32_t t ])],
+ [ac_cxx_cstdint_cstdint="<cstdint>"])
- ])
- ])
-# ])
+ AC_COMPILE_IFELSE([
+ AC_LANG_PROGRAM([#include <tr1/cstdint>], [ uint32_t t ])],
+ [ac_cxx_cstdint_tr1_cstdint="<tr1/cstdint>"])
- AC_LANG_POP()
+ AC_COMPILE_IFELSE([
+ AC_LANG_PROGRAM([#include <boost/cstdint.hpp>], [ uint32_t t ])],
+ [ac_cxx_cstdint_boost_cstdint_hpp="<boost/cstdint.hpp>"])
- CXXFLAGS="${save_CXXFLAGS}"
- if test -n "$ac_cv_cxx_cstdint"; then
- AC_MSG_RESULT([$ac_cv_cxx_cstdint])
- else
- ac_cv_cxx_cstdint="<stdint.h>"
- AC_MSG_WARN([Could not find a cstdint header.])
- AC_MSG_RESULT([$ac_cv_cxx_cstdint])
- fi
+ AC_LANG_POP
+ CXXFLAGS="${save_CXXFLAGS}"
- AC_DEFINE_UNQUOTED(CSTDINT_H,$ac_cv_cxx_cstdint, [the location of <cstdint>])
+ AS_IF([test -n "$ac_cxx_cstdint_cstdint"], [ac_cv_cxx_cstdint=$ac_cxx_cstdint_cstdint],
+ [test -n "$ac_cxx_cstdint_tr1_cstdint"], [ac_cv_cxx_cstdint=$ac_cxx_cstdint_tr1_cstdint],
+ [test -n "$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([$ac_cv_cxx_cstdint])
+ ],[
+ ac_cv_cxx_cstdint="<stdint.h>"
+ AC_MSG_WARN([Could not find a cstdint header.])
+ AC_MSG_RESULT([$ac_cv_cxx_cstdint])
+ ])
+
+AC_DEFINE_UNQUOTED([CSTDINT_H],[$ac_cv_cxx_cstdint], [the location of <cstdint>])
])