1 #---------------------------------------------------------------------------
5 # Copyright (c) 2013 Daniel Stenberg <daniel@haxx.se>
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.
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.
19 #---------------------------------------------------------------------------
24 dnl _XC_PROG_CC_PREAMBLE
25 dnl -------------------------------------------------
28 AC_DEFUN([_XC_PROG_CC_PREAMBLE], [
29 xc_prog_cc_prev_IFS=$IFS
30 xc_prog_cc_prev_LIBS=$LIBS
31 xc_prog_cc_prev_CFLAGS=$CFLAGS
32 xc_prog_cc_prev_LDFLAGS=$LDFLAGS
33 xc_prog_cc_prev_CPPFLAGS=$CPPFLAGS
37 dnl _XC_PROG_CC_POSTLUDE
38 dnl -------------------------------------------------
41 AC_DEFUN([_XC_PROG_CC_POSTLUDE], [
42 IFS=$xc_prog_cc_prev_IFS
43 LIBS=$xc_prog_cc_prev_LIBS
44 CFLAGS=$xc_prog_cc_prev_CFLAGS
45 LDFLAGS=$xc_prog_cc_prev_LDFLAGS
46 CPPFLAGS=$xc_prog_cc_prev_CPPFLAGS
51 AC_SUBST([LDFLAGS])dnl
52 AC_SUBST([CPPFLAGS])dnl
57 dnl -------------------------------------------------
60 AC_DEFUN([_XC_PROG_CC], [
61 AC_REQUIRE([_XC_PROG_CC_PREAMBLE])dnl
62 AC_REQUIRE([XC_CHECK_BUILD_FLAGS])dnl
63 AC_REQUIRE([AC_PROG_INSTALL])dnl
64 AC_REQUIRE([AC_PROG_CC])dnl
65 AC_REQUIRE([AM_PROG_CC_C_O])dnl
66 AC_REQUIRE([AC_PROG_CPP])dnl
67 AC_REQUIRE([_XC_PROG_CC_POSTLUDE])dnl
72 dnl -------------------------------------------------
75 dnl Checks for C compiler and C preprocessor programs,
76 dnl while doing some previous sanity validation on user
77 dnl provided LIBS, LDFLAGS, CPPFLAGS and CFLAGS values
78 dnl that must succeed in order to continue execution.
80 dnl This sets variables CC and CPP, while preventing
81 dnl LIBS, LDFLAGS, CFLAGS, CPPFLAGS and IFS from being
82 dnl unexpectedly changed by underlying macros.
84 AC_DEFUN([XC_CHECK_PROG_CC], [
86 AC_BEFORE([$0],[_XC_PROG_CC_PREAMBLE])dnl
87 AC_BEFORE([$0],[AC_PROG_INSTALL])dnl
88 AC_BEFORE([$0],[AC_PROG_CC])dnl
89 AC_BEFORE([$0],[AM_PROG_CC_C_O])dnl
90 AC_BEFORE([$0],[AC_PROG_CPP])dnl
91 AC_BEFORE([$0],[AC_PROG_LIBTOOL])dnl
92 AC_BEFORE([$0],[AM_INIT_AUTOMAKE])dnl
93 AC_BEFORE([$0],[_XC_PROG_CC_POSTLUDE])dnl
94 AC_REQUIRE([_XC_PROG_CC])dnl