diff options
Diffstat (limited to 'js/src/ctypes/libffi/m4/ax_configure_args.m4')
| -rw-r--r-- | js/src/ctypes/libffi/m4/ax_configure_args.m4 | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/js/src/ctypes/libffi/m4/ax_configure_args.m4 b/js/src/ctypes/libffi/m4/ax_configure_args.m4 new file mode 100644 index 0000000000..9237efea7a --- /dev/null +++ b/js/src/ctypes/libffi/m4/ax_configure_args.m4 @@ -0,0 +1,49 @@ +# =========================================================================== +# https://www.gnu.org/software/autoconf-archive/ax_configure_args.html +# =========================================================================== +# +# SYNOPSIS +# +# AX_CONFIGURE_ARGS +# +# DESCRIPTION +# +# Helper macro for AX_ENABLE_BUILDDIR. +# +# The traditional way of starting a subdir-configure is running the script +# with ${1+"$@"} but since autoconf 2.60 this is broken. Instead we have +# to rely on eval'ing $ac_configure_args however some old autoconf +# versions do not provide that. To ensure maximum portability of autoconf +# extension macros this helper can be AC_REQUIRE'd so that +# $ac_configure_args will always be present. +# +# Sadly, the traditional "exec $SHELL" of the enable_builddir macros is +# spoiled now and must be replaced by "eval + exit $?". +# +# Example: +# +# AC_DEFUN([AX_ENABLE_SUBDIR],[dnl +# AC_REQUIRE([AX_CONFIGURE_ARGS])dnl +# eval $SHELL $ac_configure_args || exit $? +# ...]) +# +# LICENSE +# +# Copyright (c) 2008 Guido U. Draheim <guidod@gmx.de> +# +# Copying and distribution of this file, with or without modification, are +# permitted in any medium without royalty provided the copyright notice +# and this notice are preserved. This file is offered as-is, without any +# warranty. + +#serial 14 + +AC_DEFUN([AX_CONFIGURE_ARGS],[ + # [$]@ is unusable in 2.60+ but earlier autoconf had no ac_configure_args + if test "${ac_configure_args+set}" != "set" ; then + ac_configure_args= + for ac_arg in ${1+"[$]@"}; do + ac_configure_args="$ac_configure_args '$ac_arg'" + done + fi +]) |