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authorPeter Simons <simons@cryp.to>2016-02-29 11:18:49 +0100
committerPeter Simons <simons@cryp.to>2016-02-29 11:18:49 +0100
commitcad4a83461884a5b32d9ba54b09bc5323b0858be (patch)
tree9b792661752da5e94db1c28913663dd030a63961 /m4/ax_fc_check_define.m4
parent4ca47060cbc32b9894931b8f3b76162c21f44efd (diff)
downloadautoconf-archive-cad4a83461884a5b32d9ba54b09bc5323b0858be.tar.gz
AX_FC_CHECK_DEFINE: initial version
Diffstat (limited to 'm4/ax_fc_check_define.m4')
-rw-r--r--m4/ax_fc_check_define.m452
1 files changed, 52 insertions, 0 deletions
diff --git a/m4/ax_fc_check_define.m4 b/m4/ax_fc_check_define.m4
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+# ===========================================================================
+# http://www.gnu.org/software/autoconf-archive/ax_fc_check_define.html
+# ===========================================================================
+#
+# SYNOPSIS
+#
+# AX_FC_CHECK_DEFINE([symbol], [ACTION-IF-FOUND], [ACTION-IF-NOT])
+#
+# DESCRIPTION
+#
+# This macro checks to see if the Fortran pre-processor has a symbol
+# defined.
+#
+# Consider a usage like:
+#
+# AC_FC_PP_DEFINE()
+# AX_FC_CHECK_DEFINE(__BIGGEST_ALIGNMENT__, [],
+# AX_APPEND_FLAG([${FC_DEFINE}__BIGGEST_ALIGNMENT__=64],
+# [FCFLAGS]))
+#
+# LICENSE
+#
+# Copyright (c) 2016 Timothy Brown <tbrown@freeshell.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. This file is offered as-is, without any
+# warranty.
+
+#serial 1
+
+AC_DEFUN([AX_FC_CHECK_DEFINE], [
+
+AS_VAR_PUSHDEF([ax_var],[ax_cv_defined_$1])dnl
+AC_LANG_PUSH([Fortran])
+ax_fc_check_define_srcext_save=$ac_fc_srcext
+AC_FC_PP_SRCEXT([F])
+AC_CACHE_CHECK([if $1 is defined], [ax_var],
+ AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [[
+#ifdef $1
+ integer :: ok
+#else
+ choke me
+#endif
+ ]])],
+ [AS_VAR_SET([ax_var], yes)],
+ [AS_VAR_SET([ax_var], no)]))
+AS_IF([test AS_VAR_GET([ax_var]) != "no"], [$2], [$3])
+ac_fc_srcext=$ax_fc_check_define_srcext_save
+AC_LANG_POP()dnl
+AS_VAR_POPDEF([ax_var])dnl
+])