mhd_check_cc_ldflag.m4 (1615B)
1 # SYNOPSIS 2 # 3 # MHD_CHECK_CC_LDFLAG([FLAG-TO-TEST], [VARIABLE-TO-PREPEND-LDFLAGS], 4 # [ACTION-IF-SUPPORTED], [ACTION-IF-NOT-SUPPORTED]) 5 # 6 # DESCRIPTION 7 # 8 # This macro checks whether the specific compiler flag is supported. 9 # The check is performing by prepending FLAG-TO-TEST to LDFLAGS, then 10 # prepending value of VARIABLE-TO-PREPEND-LDFLAGS (if any) to LDFLAGS, and 11 # then performing compile and link test. If test succeed without warnings, 12 # then the flag is considered to be supported. Otherwise, if compile and link 13 # without test flag can be done without any warning, the flag is considered 14 # to be unsuppoted. 15 # 16 # Example usage: 17 # 18 # MHD_CHECK_CC_LDFLAG([-pie], [additional_LDFLAGS], 19 # [additional_LDFLAGS="${additional_LDFLAGS} -pie"]) 20 # 21 # Defined cache variable used in check so if any test will not work 22 # correctly on some platform, user may simply fix it by giving cache 23 # variable in configure parameters, for example: 24 # 25 # ./configure mhd_cv_cc_fl_supp__wshadow=no 26 # 27 # This simplify building from source on exotic platforms as patching 28 # of configure.ac is not required to change results of tests. 29 # 30 # LICENSE 31 # 32 # Copyright (c) 2022 Karlson2k (Evgeny Grin) <k2k@narod.ru> 33 # 34 # Copying and distribution of this file, with or without modification, are 35 # permitted in any medium without royalty provided the copyright notice 36 # and this notice are preserved. This file is offered as-is, without any 37 # warranty. 38 39 #serial 1 40 41 AC_DEFUN([MHD_CHECK_CC_LDFLAG],[dnl 42 _MHD_CHECK_CC_XFLAG([$1],[$2],[$3],[$4],[[LDFLAGS]])dnl 43 ])