# -*- mode: autoconf -*-

AC_PREREQ(2.69)

AC_INIT(pmbw, 0.6)
AC_CONFIG_SRCDIR(pmbw.cc)
AC_CONFIG_AUX_DIR(acscripts)

AM_INIT_AUTOMAKE(foreign)
AM_MAINTAINER_MODE

# set debug info flag if no optimization flags are set.

if test "$CXXFLAGS" == ""; then
    CXXFLAGS="-g -O2"
fi

# check for programs.

AC_PROG_CXX
AC_LANG([C++])

# test support for -march=x86-64 (older gcc's don't have it)

save_cxxflags="$CXXFLAGS"
CXXFLAGS="$CXXFLAGS -march=x86-64"
AC_MSG_CHECKING([whether $CXX supports -march=x86-64])
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([])],
  [AC_MSG_RESULT([yes])],
  [AC_MSG_RESULT([no]); CXXFLAGS="$save_cxxflags"]
)

# check for libraries.

AC_CHECK_LIB(pthread, pthread_mutex_init,
  [LIBS="$LIBS -lpthread"],
  [AC_MSG_ERROR(pthread library needed!)]
)

AC_CHECK_LIB(rt, clock_gettime,
  [LIBS="$LIBS -lrt"],
  [AC_MSG_ERROR(rt library needed!)]
)

# transform Makefiles

AC_OUTPUT([Makefile])