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| author | P. J. McDermott <pj@pehjota.net> | 2021-09-26 13:10:40 (EDT) |
|---|---|---|
| committer | P. J. McDermott <pj@pehjota.net> | 2021-09-26 13:10:40 (EDT) |
| commit | 24ae2474ba22315acf42770df42fa70e9fc905e4 (patch) | |
| tree | b7bccbee95ea0a6a05c94943c3f583592ce278cc | |
| parent | d4c7d63e4cf73dc7543046e8779cca771095d589 (diff) | |
| download | mazefight-24ae2474ba22315acf42770df42fa70e9fc905e4.zip mazefight-24ae2474ba22315acf42770df42fa70e9fc905e4.tar.gz mazefight-24ae2474ba22315acf42770df42fa70e9fc905e4.tar.bz2 | |
m4/ax_prepend_flag.m4: New file
Now needed for AX_CFLAGS_WARN_ALL().
Fixes:
configure.ac:55: error: macro AX_PREPEND_FLAG is not defined; is a m4 file missing?
m4/ax_require_defined.m4:35: AX_REQUIRE_DEFINED is expanded from...
m4/ax_cflags_warn_all.m4:84: AX_FLAGS_WARN_ALL is expanded from...
m4/ax_cflags_warn_all.m4:142: AX_CFLAGS_WARN_ALL is expanded from...
configure.ac:55: the top level
| -rw-r--r-- | m4/.gitignore | 1 | ||||
| -rw-r--r-- | m4/ax_prepend_flag.m4 | 51 |
2 files changed, 52 insertions, 0 deletions
diff --git a/m4/.gitignore b/m4/.gitignore index 10db6cc..7bcdce7 100644 --- a/m4/.gitignore +++ b/m4/.gitignore @@ -3,6 +3,7 @@ !/ax_append_flag.m4 !/ax_cflags_warn_all.m4 !/ax_check_compile_flag.m4 +!/ax_prepend_flag.m4 !/ax_require_defined.m4 !/gcc_version.m4 !/gl_manywarnings.m4 diff --git a/m4/ax_prepend_flag.m4 b/m4/ax_prepend_flag.m4 new file mode 100644 index 0000000..adac8c5 --- /dev/null +++ b/m4/ax_prepend_flag.m4 @@ -0,0 +1,51 @@ +# =========================================================================== +# https://www.gnu.org/software/autoconf-archive/ax_prepend_flag.html +# =========================================================================== +# +# SYNOPSIS +# +# AX_PREPEND_FLAG(FLAG, [FLAGS-VARIABLE]) +# +# DESCRIPTION +# +# FLAG is added to the front of the FLAGS-VARIABLE shell variable, with a +# space added in between. +# +# If FLAGS-VARIABLE is not specified, the current language's flags (e.g. +# CFLAGS) is used. FLAGS-VARIABLE is not changed if it already contains +# FLAG. If FLAGS-VARIABLE is unset in the shell, it is set to exactly +# FLAG. +# +# NOTE: Implementation based on AX_APPEND_FLAG. +# +# LICENSE +# +# Copyright (c) 2008 Guido U. Draheim <guidod@gmx.de> +# Copyright (c) 2011 Maarten Bosmans <mkbosmans@gmail.com> +# Copyright (c) 2018 John Zaitseff <J.Zaitseff@zap.org.au> +# +# 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 2 + +AC_DEFUN([AX_PREPEND_FLAG], +[dnl +AC_PREREQ(2.64)dnl for _AC_LANG_PREFIX and AS_VAR_SET_IF +AS_VAR_PUSHDEF([FLAGS], [m4_default($2,_AC_LANG_PREFIX[FLAGS])]) +AS_VAR_SET_IF(FLAGS,[ + AS_CASE([" AS_VAR_GET(FLAGS) "], + [*" $1 "*], [AC_RUN_LOG([: FLAGS already contains $1])], + [ + FLAGS="$1 $FLAGS" + AC_RUN_LOG([: FLAGS="$FLAGS"]) + ]) + ], + [ + AS_VAR_SET(FLAGS,[$1]) + AC_RUN_LOG([: FLAGS="$FLAGS"]) + ]) +AS_VAR_POPDEF([FLAGS])dnl +])dnl AX_PREPEND_FLAG |