AC_PREREQ(2.61)
AC_INIT([stressapptest], [1.0.4_autoconf], [opensource@google.com])

AC_ARG_WITH(static, [  --with-static            enable static linking])

if test "$with_static" == "yes"
then
	AC_MSG_NOTICE([Compiling with staticaly linked libraries.])
	LIBS="$LIBS -static"
else
	AC_MSG_NOTICE([Compiling with dynamically linked libraries.])
fi

AC_CANONICAL_HOST
AC_CANONICAL_BUILD
# Checking for target cpu and setting custom configuration
# for the different platforms
AC_CANONICAL_TARGET
case x"$target_cpu" in
  "xx86_64")
    AC_DEFINE([STRESSAPPTEST_CPU_X86_64],[],
              [Defined if the target CPU is x86_64])
    ;;
  "xi686")
    AC_DEFINE([STRESSAPPTEST_CPU_I686],[],
              [Defined if the target CPU is i686])
    ;;
  "xpowerpc")
    AC_DEFINE([STRESSAPPTEST_CPU_PPC],[],
              [Defined if the target CPU is PowerPC])
    ;;
  "xarmv7a")
    AC_DEFINE([STRESSAPPTEST_CPU_ARMV7A],[],
              [Defined if the target CPU is armv7a])
    ;;
  *)
    AC_MSG_ERROR([$target_cpu is not supported! Try x86_64, i686, powerpc, or armv7a])
    ;;
esac

_os=`uname`
## The following allows like systems to share settings. This is not meant to
## imply that these OS are the same thing. From OpenOffice dmake configure.in
case "$_os" in
  "Linux")
    OS_VERSION=linux
    AC_DEFINE([STRESSAPPTEST_OS_LINUX],[],
              [Defined if the target OS is Linux])
    ;;
  "Darwin")
    OS_VERSION=macosx
    AC_DEFINE([STRESSAPPTEST_OS_DARWIN],[],
              [Defined if the target OS is OSX])
    ;;
  "FreeBSD")
    OS_VERSION=bsd
    AC_DEFINE([STRESSAPPTEST_OS_BSD],[],
              [Defined if the target OS is BSD based])
    ;;
  "NetBSD")
    OS_VERSION=bsd
    AC_DEFINE([STRESSAPPTEST_OS_BSD],[],
              [Defined if the target OS is BSD based])
    ;;
  *)
    AC_MSG_ERROR([$_os operating system is not suitable to build dmake!])
    ;;
esac

AM_INIT_AUTOMAKE([-Wall -Werror foreign])
AC_CONFIG_SRCDIR([src/])
AC_CONFIG_HEADER([src/stressapptest_config.h])

# Checks for programs.
#  Don't generate CXXFLAGS defaults: if CXXFLAGS are unset
#  AC_PROG_CXX will override them with unwanted defaults.
CXXFLAGS="$CXXFLAGS"
AC_PROG_CXX
AC_PROG_CC

#Getting user and host info
username=$(whoami)
AC_MSG_CHECKING([user ID])
AC_MSG_RESULT([$username])

hostname=$(uname -n)
AC_MSG_CHECKING([host name])
AC_MSG_RESULT([$hostname])

timestamp=$(date)
AC_MSG_CHECKING([current timestamp])
AC_MSG_RESULT([$timestamp])

AC_DEFINE_UNQUOTED([STRESSAPPTEST_TIMESTAMP],
                   "$username @ $hostname on $timestamp",
                   [Timestamp when ./configure was executed])

#Default cxxflags
CXXFLAGS="$CXXFLAGS -DCHECKOPTS"
CXXFLAGS="$CXXFLAGS -Wreturn-type -Wunused -Wuninitialized -Wall -Wno-psabi"
CXXFLAGS="$CXXFLAGS -O3 -funroll-all-loops  -funroll-loops -DNDEBUG"

# Checks for header files.
AC_HEADER_DIRENT
AC_HEADER_STDC
# Skip malloc.h to prevent redefinition of HAVE_MALLOC_H on some platforms
AC_CHECK_HEADERS([arpa/inet.h fcntl.h netdb.h stdint.h stdlib.h string.h sys/ioctl.h sys/socket.h sys/time.h unistd.h], [], [AC_MSG_FAILURE([Missing some header files.])])
AC_CHECK_HEADERS([pthread.h])
AC_SEARCH_LIBS([pthread_create], [pthread])
AC_CHECK_HEADERS([libaio.h])
AC_SEARCH_LIBS([io_setup], [aio])
AC_CHECK_HEADERS([sys/shm.h])
AC_SEARCH_LIBS([shm_open], [rt])

# Checks for typedefs, structures, and compiler characteristics.
AC_HEADER_STDBOOL
AC_C_CONST
AC_C_INLINE
AC_TYPE_PID_T
AC_C_RESTRICT
AC_TYPE_SIZE_T
AC_TYPE_SSIZE_T
AC_HEADER_TIME
AC_TYPE_UINT16_T
AC_C_VOLATILE


# Checks for library functions.
AC_FUNC_CLOSEDIR_VOID
AC_PROG_GCC_TRADITIONAL
AC_FUNC_SELECT_ARGTYPES
AC_TYPE_SIGNAL
AC_FUNC_STRERROR_R
AC_FUNC_VPRINTF
AC_CHECK_FUNCS([ftruncate gettimeofday memset munmap select socket strtol strtoull])
AC_CHECK_FUNCS([mmap64 posix_memalign rand_r sched_getaffinity])

AC_CONFIG_FILES([Makefile src/Makefile])
AC_OUTPUT