mhd_find_add_cc_ldflag_ifelse.m4 (1893B)
1 # SPDX-License-Identifier: FSFAP 2 # 3 # SYNOPSIS 4 # 5 # MHD_FIND_ADD_CC_LDFLAG_IFELSE([ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND], 6 # [VARIABLE-TO-EXTEND], 7 # [FLAG1-TO-TEST], [FLAG2-TO-TEST], ...) 8 # 9 # DESCRIPTION 10 # 11 # This macro checks whether the specific compiler flags are supported. 12 # The flags are checked one-by-one. The checking is stopped when the first 13 # supported flag found. 14 # The checks are performing by appending FLAGx-TO-TEST to the value of 15 # VARIABLE-TO-EXTEND (LDFLAGS if not specified), then prepending result to 16 # LDFLAGS (unless VARIABLE-TO-EXTEND is LDFLAGS), and then performing compile 17 # and link test. If test succeed without warnings, then the flag is added to 18 # VARIABLE-TO-EXTEND and next flags are not checked. If compile-link cycle 19 # cannot be performed without warning with all tested flags, no flag is 20 # added to the VARIABLE-TO-EXTEND. 21 # If any suitable flag is found, ACTION-IF-FOUND is executed otherwise 22 # ACTION-IF-NOT-FOUND is executed. Found flag (if any) is available as 23 # value of shell variable $mhd_cc_found_flag during action execution. 24 # 25 # Example usage: 26 # 27 # MHD_CHECK_CC_LDFLAG([],[AC_MSG_WARN([Stripping is not supported]), 28 # [additional_LDFLAGS], 29 # [-Wl,--strip-all], [-Wl,--strip-debug]) 30 # 31 # Note: Unlike others MHD_CHECK_*CC_LDFLAG* macro, this macro uses another 32 # order of parameters. 33 # 34 # LICENSE 35 # 36 # Copyright (c) 2022 Karlson2k (Evgeny Grin) <k2k@narod.ru> 37 # 38 # Copying and distribution of this file, with or without modification, are 39 # permitted in any medium without royalty provided the copyright notice 40 # and this notice are preserved. This file is offered as-is, without any 41 # warranty. 42 43 #serial 1 44 45 AC_DEFUN([MHD_FIND_ADD_CC_LDFLAG_IFELSE],[dnl 46 _MHD_FIND_ADD_CC_XFLAG([[LDFLAGS]],$@)])