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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN"
"http://www.w3.org/TR/html4/strict.dtd">
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<title>
Autoconf Macro: ax_f90_library
</title>
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<hr>
<h1>
ax_f90_library
</h1>
<h2>
Synopsis
</h2>
<p class="indent" style="white-space:nowrap;">
<code>AX_F90_LIBRARY(LIBRARY, LIB-REGEXP, FUNCTION-BODY [, SEARCH-PATH [,
ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]])</code>
</p>
<h2>
Description
</h2>
<div class="indent">
<p>
Set up the compiler flags to link a given fortran 90 library LIBRARY is the
name of the library. LIB-REGEXP is a regular expression (used by find)
matched by the filename of the library, this is useful either if the
library filename does not follow the traditional libxxx.a or libxxx.so
pattern, or if some specific information is embedded into the name, like
compiler used, debugging status ...). FUNCTION-BODY is the body of a
function (including the 'use' statements and the call to a function defined
by the library) SEARCH-PATH is a colon-separated list of directories that
will be used as the base directoris for 'find' to look for the library
file. If empty, the search path will be composed of $prefix/lib,
$ac_default_prefix/lib, and $LD_LIBRARY_PATH. Two output variables named
F90_LDFLAGS_xxx and F90_LIBS_xxx will be set up with the proper flag for
substitution in Makefiles (xxx is built from the first argument, with
autoconf traditional escapes).
</p>
</div>
<h2>
Author
</h2>
<p class="indent">
Luc Maisonobe <luc@spaceroots.org>
</p>
<h2>
Last Modified
</h2>
<p class="indent">
2005-01-14
</p>
<h2>
M4 Source Code
</h2>
<div class="indent">
<pre class="m4source">
AC_DEFUN([AX_F90_LIBRARY],[
AS_VAR_PUSHDEF([ax_ldflags],[ax_f90_ldflags_$1])
AS_VAR_PUSHDEF([ax_libs],[ax_f90_libs_$1])
AC_MSG_CHECKING([$1 fortran 90 library])
AC_LANG_PUSH(Fortran)
AS_VAR_SET([ax_ldflags],"")
AS_VAR_SET([ax_libs],"not found")
if test "x$4" = x ; then
ax_search="$prefix:$ac_default_prefix"
for ax_base in "" `echo $LD_LIBRARY_PATH | tr ':' '\012'` ; do
if test "x$ax_base" != x ; then
changequote(,)dnl
ax_base=`echo $ax_base | sed 's,/[^/]*$,,'`
changequote([,])dnl
ax_search="${ax_search}:${ax_base}"
fi
done
else
ax_search="$4"
fi
ax_save_LDFLAGS="$LDFLAGS"
ax_save_LIBS="$LIBS"
for ax_base in `echo $ax_search | tr ':' '\012'` ; do
if test "AS_VAR_GET(ax_libs)" = "not found" ; then
for ax_lib in "" `find $ax_base -follow -name '$2' -print` ; do
if test "x$ax_lib" != x ; then
changequote(,)dnl
ax_dir=`echo $ax_lib | sed 's,/[^/]*$,,'`
ax_lib=`echo $ax_lib | sed 's,.*/\([^/]*\)$,\1,'`
changequote([,])dnl
case "$ax_lib" in
lib*)
changequote(,)dnl
ax_lib="`echo $ax_lib | sed 's,lib\(.*\)\.[^.]*$,\1,'`"
changequote([,])dnl
AS_VAR_SET([ax_ldflags],"-L $ax_dir")
AS_VAR_SET([ax_libs],"-l$ax_lib")
;;
*)
AS_VAR_SET([ax_ldflags],"")
AS_VAR_SET(ax_libs,"$ax_lib")
;;
esac
LDFLAGS="$ax_save_LDFLAGS AS_VAR_GET(ax_ldflags)"
LIBS="AS_VAR_GET(ax_libs) $ax_save_LIBS"
AC_LINK_IFELSE([program conftest_program
$3
end program conftest_program
],[],[AS_VAR_SET(ax_ldflags,"")
AS_VAR_SET(ax_libs,"not found")
])
fi
done
fi
done
AC_LANG_POP(Fortran)
AC_MSG_RESULT([AS_VAR_GET(ax_ldflags) AS_VAR_GET(ax_libs)])
if test "AS_VAR_GET(ax_libs)" = "not found"; then
AS_TR_SH(F90_LDFLAGS_$1)=""
AS_TR_SH(F90_LIBS_$1)=""
$5
else
AS_TR_SH(F90_LDFLAGS_$1)=AS_VAR_GET(ax_ldflags)
AS_TR_SH(F90_LIBS_$1)=AS_VAR_GET(ax_libs)
$6
fi
AC_SUBST(AS_TR_SH(F90_LDFLAGS_$1))
AC_SUBST(AS_TR_SH(F90_LIBS_$1))
AS_VAR_POPDEF([ax_libs])
AS_VAR_POPDEF([ax_ldflags])
])
</pre>
</div>
<h2>
License
</h2>
<div class="indent">
<span style="white-space:nowrap;">Copyright © 2005 Luc Maisonobe
<luc@spaceroots.org></span>
<p>
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.
</p>
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