AC_PREREQ([2.69])

AC_INIT([examples],[0.0],[Michele Martone])

AC_COPYRIGHT([Copyright (c) 2022-2022, Michele Martone])

AM_INIT_AUTOMAKE

AC_CHECK_PROGS([GREP],[ggrep grep],[false],[])

AM_CONDITIONAL([HAVE_GREP],[test x"$GREP" != x"false" ])

AC_LANG(C++)

AC_PROG_CXX(icpx amdclang++ clang++ g++ c++)

AC_OPENMP

CXXFLAGS_backup="$CXXFLAGS"; # opencl flags needed to detect its header

CXXFLAGS="$OPENMP_CXXFLAGS $CXXFLAGS";

AC_CONFIG_HEADERS([config.h])

AC_CHECK_HEADERS([omp.h])

AC_CHECK_FUNC([omp_get_place_num], AC_DEFINE([HAVE_OMP_GET_PLACE_NUM], [1], [omp_get_place_num]))

AC_CHECK_FUNC([omp_get_team_num])

if test x"$ac_cv_func_omp_get_team_num" != x"yes"; then

date;

dnl AC_CHECK_LIB([OpenMP],[omp_get_team_num],[LIBS+=' -lOpenCL'],[true])

fi

CXXFLAGS="$CXXFLAGS_backup"; # restore

dnl

AC_CACHE_CHECK([whether you have C++17],

[have_cv_cxx17], AC_RUN_IFELSE([AC_LANG_SOURCE([[

#include <cassert>

int main() { assert(__cplusplus> 201600L) ; }

]])],[have_cv_cxx17=yes],[have_cv_cxx17=no],[have_cv_cxx17=no]))

if test X$have_cv_cxx17 = Xyes ; then

AC_MSG_NOTICE([Using >= C++17.])

else

AC_MSG_NOTICE([Using < C++17.])

fi

dnl

AC_CACHE_CHECK([whether you have C++20],

[have_cv_cxx20], AC_RUN_IFELSE([AC_LANG_SOURCE([[

#include <cassert>

int main() { assert(__cplusplus> 201703L) ; }

]])],[have_cv_cxx20=yes],[have_cv_cxx20=no],[have_cv_cxx20=no]))

if test X$have_cv_cxx20 = Xyes ; then

AC_MSG_NOTICE([Using >= C++20.])

else

AC_MSG_NOTICE([Using < C++20.])

fi

dnl

AC_CHECK_LIB([asan],[__asan_init],[true],[true])

AM_CONDITIONAL([HAVE_ASAN],[test x"$ac_cv_lib_asan___asan_init" = x"yes" ])

AM_CONDITIONAL([HAVE_GTEST],[test x"$want_gtest" == x"yes" ])

AM_CONDITIONAL([HAVE_CPP17],[test x"$have_cv_cxx17" == x"yes" ])

AM_CONDITIONAL([HAVE_CPP20],[test x"$have_cv_cxx20" == x"yes" ])

AM_CONDITIONAL([HAVE_OPENMP],[test x"$ac_cv_header_omp_h" == x"yes" ])

AC_CONFIG_FILES([Makefile])

AC_OUTPUT

AC_MSG_NOTICE([Created a Makefile])