ax_prog_nasm_opt.m4

# ===========================================================================
#     https://www.gnu.org/software/autoconf-archive/ax_prog_nasm_opt.html
# ===========================================================================
#
# SYNOPSIS
#
#   AX_PROG_NASM_OPT(option, var_name)
#
# DESCRIPTION
#
#   This macro checks if the NASM assembler accepts the given option. If
#   yes, the option is appended to the variable 'var_name', otherwise
#   'var_name' is unchanged.
#
#   Example:
#
#     AX_PROG_NASM_OPT([-f obj], [NASM_OPTS])
#
# LICENSE
#
#   Copyright (c) 2007,2009,2022 Bogdan Drozdowski <bogdro@users.sourceforge.net>
#
#   This program is free software: you can redistribute it and/or modify it
#   under the terms of the GNU Lesser General Public License as published by
#   the Free Software Foundation, either version 3 of the License, or (at
#   your option) any later version.
#
#   This program is distributed in the hope that it will be useful, but
#   WITHOUT ANY WARRANTY; without even the implied warranty of
#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser
#   General Public License for more details.
#
#   You should have received a copy of the GNU Lesser General Public License
#   along with this program. If not, see <https://www.gnu.org/licenses/>.
#
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#serial 11

AC_DEFUN([AX_PROG_NASM_OPT],[
	AC_REQUIRE([AX_PROG_NASM])dnl
	AC_MSG_CHECKING([if NASM '$nasm' accepts $1])
	AS_IF([test "x$nasm" = "xno"],
		[
			AC_MSG_RESULT([no])
			AC_MSG_WARN([NASM assembler not found])
		],
		[
			AS_ECHO '' > conftest.asm
			AS_IF([$nasm $$2 $1 conftest.asm > conftest.err],
				[$2="$$2 $1"
				AC_MSG_RESULT([yes])],
				[AC_MSG_RESULT([no])]
			)
		]
	)
])