mhd_check_add_cc_cflags.m4 (1396B)
1 # SYNOPSIS 2 # 3 # MHD_CHECK_ADD_CC_CFLAGS([FLAGS-TO-TEST], [VARIABLE-TO-EXTEND]) 4 # 5 # DESCRIPTION 6 # 7 # This macro checks whether the specific compiler flags are supported. 8 # The FLAGS-TO-TEST parameter is whitespace-separated flagto to test. 9 # The flags are tested one-by-one, all supported flags are added to the 10 # VARIABLE-TO-EXTEND. 11 # Every flag check is performing by appending one flag to the value of 12 # VARIABLE-TO-EXTEND (CFLAGS if not specified), then prepending result to 13 # CFLAGS (unless VARIABLE-TO-EXTEND is CFLAGS), and then performing compile 14 # and link test. If test succeed without warnings, then the flag is added to 15 # VARIABLE-TO-EXTEND. Otherwise, if compile and link without test flag cannot 16 # be done without any warning, the flag is considered to be unsuppoted. 17 # 18 # Example usage: 19 # 20 # MHD_CHECK_ADD_CC_CFLAGS([-Wshadow -Walloc-zero -Winit-self], 21 # [additional_CFLAGS]) 22 # 23 # 24 # LICENSE 25 # 26 # Copyright (c) 2022 Karlson2k (Evgeny Grin) <k2k@narod.ru> 27 # 28 # Copying and distribution of this file, with or without modification, are 29 # permitted in any medium without royalty provided the copyright notice 30 # and this notice are preserved. This file is offered as-is, without any 31 # warranty. 32 33 #serial 1 34 35 AC_DEFUN([MHD_CHECK_ADD_CC_CFLAGS],[dnl 36 m4_foreach_w([test_flag],[$1], 37 [MHD_CHECK_ADD_CC_CFLAG([test_flag],[$2]) 38 ])dnl 39 ])