AC_INIT(src/huti_cg.src)

dnl AC_PREREQ(2.59c)

AC_CANONICAL_HOST
AC_CANONICAL_TARGET

AM_INIT_AUTOMAKE(hutiter, 4.0.1)

sinclude(acx_elmer.m4)
ACX_DEBUG

AC_PROG_CC([xlc pathcc icc cc gcc])
AC_PROG_FC([xlf90 pathf90 ifort f90 g95])
AC_PROG_F77([xlf pathf90 ifort f77 g77])

AC_STDC_HEADERS

AM_MAINTAINER_MODE

AC_PROG_RANLIB



dnl It is important to do this before *_WRAPPERS, because the ldflags might be different for 32 and 64 bits
ACX_CHECK_B64FLAGS

AC_F77_WRAPPERS
AC_FC_WRAPPERS

dnl case "$ac_cv_fc_mangling" in
dnl   "upper case, no underscore, no extra underscore" | \
dnl   "upper case, no underscores")
dnl     AC_DEFINE(LINKTYP, 2, "Mangling: upper case, no underscore, no extra underscore") ;;
dnl   "lower case, no underscore, no extra underscore" | \
dnl   "lower case, no underscores" )
dnl     AC_DEFINE(LINKTYP, 3, "Mangling: lower case, no underscore, no extra underscore") ;;
dnl   "lower case, underscore, no extra underscore" | \
dnl   "lower case, single underscores")
dnl     AC_DEFINE(LINKTYP, 1, "Mangling: lower case, underscore, no extra underscore") ;;
dnl   "lower case, underscore, extra underscore" | \
dnl   "lower case, double underscores")
dnl     AC_DEFINE(LINKTYP, 1, "Mangling: lower case, underscore, extra underscore") ;;
dnl   *)
dnl     AC_MSG_ERROR([Unknown sort of Fortran name mangling. You compiler is most likely not worthy of existence, all attempts to use is are futile.]) ;;
dnl esac

LIBS="-L. $LIBS -L$prefix/lib"
CFLAGS="$CFLAGS -I$prefix/include"
CXXFLAGS="$CXXFLAGS -I$prefix/include"
FCFLAGS="$FCFLAGS -I. -I$prefix/include"

ACX_LANG_COMPILER_MS

AM_CONDITIONAL(USING_MS_C_COMPILER, test "$acx_cv_c_compiler_ms" = "yes")

sinclude(acx_blas.m4)
sinclude(acx_lapack.m4)

dnl through in obsolete fortran runtime if found. otherwise hope for the best. (netlib blas and lapack might need this)
AC_CHECK_LIB(g2c, e_wsfe)
ACX_BLAS([], [AC_MSG_ERROR([BLAS was not found!])])
dnl ACX_LAPACK([], [AC_MSG_ERROR([LAPACK was not found!])])

LIBS="$BLAS_LIBS $LIBS $FCLIBS $FLIBS"

dnl aix xl* compiler family needs some help with preprocessing
case "$FC" in
  *xlf*)
    FCFLAGS="$FCFLAGS -qsuffix=cpp=F90"
  ;;
esac

# there are a lot of function pointers declared (without __stdcall) wrong in the 
# *.c files. This kludge fixes them for now. 
if test "$acx_cv_c_compiler_ms" = "yes"; then
   CFLAGS="$CFLAGS -Gz"
fi

AC_CONFIG_HEADER(config.h) 

AC_SUBST(AM_FCFLAGS) 
AC_SUBST(FCFLAGS)

AC_OUTPUT([
Makefile
include/Makefile
examples/Makefile
examples/ex1/Makefile
src/Makefile])