mirror of
https://git.gnunet.org/libmicrohttpd.git
synced 2026-09-25 04:09:31 +03:00
86 lines
3.6 KiB
Plaintext
86 lines
3.6 KiB
Plaintext
# SYNOPSIS
|
|
#
|
|
# MHD_FIND_ADD_CC_CFLAG([VARIABLE-TO-EXTEND],
|
|
# [FLAG1-TO-TEST], [FLAG2-TO-TEST], ...)
|
|
#
|
|
# DESCRIPTION
|
|
#
|
|
# This macro checks whether the specific compiler flags are supported.
|
|
# The flags are checked one-by-one. The checking is stopped when the first
|
|
# supported flag found.
|
|
# The checks are performing by appending FLAGx-TO-TEST to the value of
|
|
# VARIABLE-TO-EXTEND (CFLAGS if not specified), then prepending result to
|
|
# CFLAGS (unless VARIABLE-TO-EXTEND is CFLAGS), and then performing compile
|
|
# and link test. If test succeed without warnings, then the flag is added to
|
|
# VARIABLE-TO-EXTEND and next flags are not checked. If compile-link cycle
|
|
# cannot be performed without warning with all tested flags, no flag is
|
|
# added to the VARIABLE-TO-EXTEND.
|
|
#
|
|
# Example usage:
|
|
#
|
|
# MHD_CHECK_CC_CFLAG([additional_CFLAGS],
|
|
# [-ggdb3], [-g3], [-ggdb], [-g])
|
|
#
|
|
# Note: Unlike others MHD_CHECK_*CC_CFLAG* macro, this macro uses another
|
|
# order of parameters.
|
|
#
|
|
# LICENSE
|
|
#
|
|
# Copyright (c) 2022 Karlson2k (Evgeny Grin) <k2k@narod.ru>
|
|
#
|
|
# 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([MHD_FIND_ADD_CC_CFLAG],[dnl
|
|
_MHD_FIND_ADD_CC_XFLAG([[CFLAGS]],[],[],$@)])
|
|
|
|
|
|
# SYNOPSIS
|
|
#
|
|
# _MHD_FIND_ADD_CC_XFLAG([CFLAGS|LDFLAGS],
|
|
# [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND],
|
|
# [VARIABLE-TO-EXTEND],
|
|
# [FLAG1-TO-TEST], [FLAG2-TO-TEST], ...)
|
|
#
|
|
AC_DEFUN([_MHD_FIND_ADD_CC_XFLAG],[dnl
|
|
AC_PREREQ([2.64])dnl for m4_ifnblank
|
|
AC_LANG_ASSERT([C])dnl
|
|
m4_if(m4_eval([$# >= 5]), [0], [m4_fatal([$0: Macro must have at least five parameters])])dnl
|
|
m4_ifblank([$5],[m4_fatal([$0: Fifth macro argument must not be empty])])dnl
|
|
m4_ifnblank([$2$3],[m4_newline([m4_n([AS_UNSET([mhd_cc_found_flag])])])])dnl
|
|
m4_bmatch(_mhd_norm_expd([$1]), [^\(CFLAGS\|LDFLAGS\)$],[],dnl
|
|
[m4_fatal([$0: First macro argument must be either 'CFLAGS' or 'LDFLAGS; ']_mhd_norm_expd([$1])[' is not supported])])dnl
|
|
m4_ifnblank([$4],[_MHD_FIND_ADD_CC_XFLAG_BODY(m4_ifnblank([$2$3],[mhd_cc_found_flag]),[$1],[$4],m4_shiftn([4],$@))],dnl
|
|
[_MHD_FIND_ADD_CC_XFLAG_BODY(m4_ifnblank([$2$3],[mhd_cc_found_flag]),[$1],[$1],m4_shiftn([4],$@))])dnl
|
|
m4_ifnblank([$2$3],[
|
|
AS_IF([test -n "${mhd_cc_found_flag}"],[$2],[$3])
|
|
AS_UNSET([mhd_cc_found_flag])
|
|
])dnl
|
|
])dnl
|
|
])
|
|
|
|
|
|
# SYNOPSIS
|
|
#
|
|
# _MHD_FIND_ADD_CC_XFLAG_BODY([VAR-TO-SET],
|
|
# [CFLAGS|LDFLAGS],
|
|
# [VARIABLE-TO-EXTEND],
|
|
# [FLAG1-TO-TEST], [FLAG2-TO-TEST], ...)
|
|
#
|
|
m4_define([_MHD_FIND_ADD_CC_XFLAG_BODY],[dnl
|
|
m4_version_prereq([2.64])dnl for m4_ifnblank
|
|
m4_if([$#],[0],[m4_fatal([$0: no parameters])])dnl
|
|
m4_bmatch(_mhd_norm_expd([$2]),[^\(CFLAGS\|LDFLAGS\)$],[],dnl
|
|
[m4_fatal([$0: Second macro argument must be either 'CFLAGS' or 'LDFLAGS; ']_mhd_norm_expd([$2])[' is not supported])])dnl
|
|
m4_if([$#],[1],[m4_fatal([$0: not enough parameters])])dnl
|
|
m4_if([$#],[2],[m4_fatal([$0: not enough parameters])])dnl
|
|
m4_if([$#],[3],[m4_fatal([$0: not enough parameters])])dnl
|
|
m4_if([$#],[4],[m4_ifnblank([$4],[_MHD_CHECK_ADD_CC_XFLAG([$4],[$3],m4_ifnblank([$1],[$1="_mhd_norm_expd([$4])"]),[],[$2])])],
|
|
[m4_ifnblank([$4],[_MHD_CHECK_ADD_CC_XFLAG([$4],[$3],m4_ifnblank([$1],[$1="_mhd_norm_expd([$4])"]),[$0([$1],[$2],[$3],m4_shiftn([4],$@))],[$2])],
|
|
[$0([$1],[$2],[$3],m4_shiftn([4],$@))])])dnl
|
|
])
|