##### http://autoconf-archive.cryp.to/ax_f90_header.html
#
# SYNOPSIS
#
#   AX_F90_HEADER(HEADER, HEADER-REGEXP, FUNCTION-BODY [, SEARCH-PATH [, ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]])
#
# DESCRIPTION
#
#   Set up the compiler flags to use a given fortran 90 header. HEADER
#   is the name of the header. HEADER-REGEXP is a regular expression
#   (used by find) matched by the filename of the header. FUNCTION-BODY
#   is the body of a function (including the 'use' statement and the
#   call to a function defined by the module) SEARCH-PATH is a
#   colon-separated list of directories that will be recursively
#   searched for header files. If empty, the search path will be
#   composed of $prefix, $ac_default_prefix, and all directories
#   exactly one level *above* the directories in $LD_LIBRARY_PATH (the
#   rationale is that when libraries are put in /some/path/lib, the
#   headers are often put in a directory like /some/path/include). An
#   output variable named F90_HEADER_xxx will be set up with the proper
#   flag for substitution in Makefiles (xxx is built from the first
#   argument, with autoconf traditional escapes).
#
# LAST MODIFICATION
#
#   2005-01-14
#
# COPYLEFT
#
#   Copyright (c) 2005 Luc Maisonobe <luc@spaceroots.org>
#
#   Copying and distribution of this file, with or without
#   modification, are permitted in any medium without royalty provided
#   the copyright notice and this notice are preserved.

AC_DEFUN([AX_F90_HEADER],[
 AX_F90_INTERNAL_HEADMOD([$1 fortran 90 header],[$2],-I,
                         [$3],AS_TR_SH(F90_HEADER_$1),[$4],[$5],[$6])
])