1#--------------------------------------------------------------------------- 2# 3# xc-cc-check.m4 4# 5# Copyright (C), Daniel Stenberg <daniel@haxx.se> 6# 7# Permission to use, copy, modify, and distribute this software for any 8# purpose with or without fee is hereby granted, provided that the above 9# copyright notice and this permission notice appear in all copies. 10# 11# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 12# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 13# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 14# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 15# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 16# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 17# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 18# 19# SPDX-License-Identifier: ISC 20# 21#--------------------------------------------------------------------------- 22 23# serial 1 24 25 26dnl _XC_PROG_CC_PREAMBLE 27dnl ------------------------------------------------- 28dnl Private macro. 29 30AC_DEFUN([_XC_PROG_CC_PREAMBLE], [ 31 xc_prog_cc_prev_IFS=$IFS 32 xc_prog_cc_prev_LIBS=$LIBS 33 xc_prog_cc_prev_CFLAGS=$CFLAGS 34 xc_prog_cc_prev_LDFLAGS=$LDFLAGS 35 xc_prog_cc_prev_CPPFLAGS=$CPPFLAGS 36]) 37 38 39dnl _XC_PROG_CC_POSTLUDE 40dnl ------------------------------------------------- 41dnl Private macro. 42 43AC_DEFUN([_XC_PROG_CC_POSTLUDE], [ 44 IFS=$xc_prog_cc_prev_IFS 45 LIBS=$xc_prog_cc_prev_LIBS 46 CFLAGS=$xc_prog_cc_prev_CFLAGS 47 LDFLAGS=$xc_prog_cc_prev_LDFLAGS 48 CPPFLAGS=$xc_prog_cc_prev_CPPFLAGS 49 AC_SUBST([CC])dnl 50 AC_SUBST([CPP])dnl 51 AC_SUBST([LIBS])dnl 52 AC_SUBST([CFLAGS])dnl 53 AC_SUBST([LDFLAGS])dnl 54 AC_SUBST([CPPFLAGS])dnl 55]) 56 57 58dnl _XC_PROG_CC 59dnl ------------------------------------------------- 60dnl Private macro. 61 62AC_DEFUN([_XC_PROG_CC], [ 63 AC_REQUIRE([_XC_PROG_CC_PREAMBLE])dnl 64 AC_REQUIRE([XC_CHECK_BUILD_FLAGS])dnl 65 AC_REQUIRE([AC_PROG_INSTALL])dnl 66 AC_REQUIRE([AC_PROG_CC])dnl 67 AC_REQUIRE([AM_PROG_CC_C_O])dnl 68 AC_REQUIRE([AC_PROG_CPP])dnl 69 AC_REQUIRE([_XC_PROG_CC_POSTLUDE])dnl 70]) 71 72 73dnl XC_CHECK_PROG_CC 74dnl ------------------------------------------------- 75dnl Public macro. 76dnl 77dnl Checks for C compiler and C preprocessor programs, 78dnl while doing some previous sanity validation on user 79dnl provided LIBS, LDFLAGS, CPPFLAGS and CFLAGS values 80dnl that must succeed in order to continue execution. 81dnl 82dnl This sets variables CC and CPP, while preventing 83dnl LIBS, LDFLAGS, CFLAGS, CPPFLAGS and IFS from being 84dnl unexpectedly changed by underlying macros. 85 86AC_DEFUN([XC_CHECK_PROG_CC], [ 87 AC_PREREQ([2.50])dnl 88 AC_BEFORE([$0],[_XC_PROG_CC_PREAMBLE])dnl 89 AC_BEFORE([$0],[AC_PROG_INSTALL])dnl 90 AC_BEFORE([$0],[AC_PROG_CC])dnl 91 AC_BEFORE([$0],[AM_PROG_CC_C_O])dnl 92 AC_BEFORE([$0],[AC_PROG_CPP])dnl 93 AC_BEFORE([$0],[AC_PROG_LIBTOOL])dnl 94 AC_BEFORE([$0],[AM_INIT_AUTOMAKE])dnl 95 AC_BEFORE([$0],[_XC_PROG_CC_POSTLUDE])dnl 96 AC_REQUIRE([_XC_PROG_CC])dnl 97]) 98
