diff options
Diffstat (limited to 'm4/ax_restore_flags.m4')
| -rw-r--r-- | m4/ax_restore_flags.m4 | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/m4/ax_restore_flags.m4 b/m4/ax_restore_flags.m4 new file mode 100644 index 0000000..7379460 --- /dev/null +++ b/m4/ax_restore_flags.m4 @@ -0,0 +1,54 @@ +# SPDX-License-Identifier: FSFAP +# +# =========================================================================== +# https://www.gnu.org/software/autoconf-archive/ax_restore_flags.html +# =========================================================================== +# +# SYNOPSIS +# +# AX_RESTORE_FLAGS([namespace]) +# +# DESCRIPTION +# +# Restore common compilation flags from temporary variables. +# +# Compilation flags includes: CPPFLAGS, CFLAGS, CXXFLAGS, LDFLAGS, LIBS, +# OBJCFLAGS. +# +# By default these flags are restored to a global (empty) namespace, but +# user could restore from specific NAMESPACE by using +# AX_RESTORE_FLAGS(NAMESPACE) macro. +# +# Typical usage is like: +# +# AX_SAVE_FLAGS(mypackage) +# CPPFLAGS="-Imypackagespath ${CPPFLAGS}" +# dnl ... do some detection ... +# AX_RESTORE_FLAGS(mypackage) +# +# LICENSE +# +# Copyright (c) 2009 Filippo Giunchedi <filippo@esaurito.net> +# Copyright (c) 2011 The Board of Trustees of the Leland Stanford Junior University +# Copyright (c) 2011 Russ Allbery <rra@stanford.edu> +# Copyright (c) 2013 Bastien ROUCARIES <roucaries.bastien+autoconf@gmail.com> +# +# 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 7 + +# save one flag in name space +AC_DEFUN([_AX_RESTORE_ONE_FLAG],[dnl + AS_VAR_PUSHDEF([_ax_restore_flag_var], [$2[]_$1[]_ax_save_flags]) + AS_VAR_COPY($2[],_ax_restore_flag_var) + AS_VAR_POPDEF([_ax_restore_flag_var]) +]) + +AC_DEFUN([AX_RESTORE_FLAGS], [dnl + m4_foreach([FLAG], dnl + [_AX_SAVE_FLAGS_LIST()], dnl + [_AX_RESTORE_ONE_FLAG([$1],FLAG)]) +]) |