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| author | Alexey Neyman <stilor@att.net> | 2018-01-06 18:31:15 -0800 |
|---|---|---|
| committer | Alexey Neyman <stilor@att.net> | 2018-04-07 12:02:33 -0700 |
| commit | 896bc2d17313f32a968efb09917cc3eb2b4e3ed8 (patch) | |
| tree | 3735dcf860ee30ffc86c04122bdc7fc0dd4b5be4 /m4/ax_require_defined.m4 | |
| parent | 7c3422675909ea8b117f94a26170af06a265477e (diff) | |
| download | crosstool-ng-896bc2d17313f32a968efb09917cc3eb2b4e3ed8.tar.gz crosstool-ng-896bc2d17313f32a968efb09917cc3eb2b4e3ed8.tar.bz2 crosstool-ng-896bc2d17313f32a968efb09917cc3eb2b4e3ed8.zip | |
Split local helper macros into separate m4's
... which are then picked up via aclocal.
Signed-off-by: Alexey Neyman <stilor@att.net>
Diffstat (limited to 'm4/ax_require_defined.m4')
| -rw-r--r-- | m4/ax_require_defined.m4 | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/m4/ax_require_defined.m4 b/m4/ax_require_defined.m4 new file mode 100644 index 00000000..17c3eab7 --- /dev/null +++ b/m4/ax_require_defined.m4 @@ -0,0 +1,37 @@ +# =========================================================================== +# https://www.gnu.org/software/autoconf-archive/ax_require_defined.html +# =========================================================================== +# +# SYNOPSIS +# +# AX_REQUIRE_DEFINED(MACRO) +# +# DESCRIPTION +# +# AX_REQUIRE_DEFINED is a simple helper for making sure other macros have +# been defined and thus are available for use. This avoids random issues +# where a macro isn't expanded. Instead the configure script emits a +# non-fatal: +# +# ./configure: line 1673: AX_CFLAGS_WARN_ALL: command not found +# +# It's like AC_REQUIRE except it doesn't expand the required macro. +# +# Here's an example: +# +# AX_REQUIRE_DEFINED([AX_CHECK_LINK_FLAG]) +# +# LICENSE +# +# Copyright (c) 2014 Mike Frysinger <vapier@gentoo.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 2 + +AC_DEFUN([AX_REQUIRE_DEFINED], [dnl + m4_ifndef([$1], [m4_fatal([macro ]$1[ is not defined; is a m4 file missing?])]) +])dnl AX_REQUIRE_DEFINED |