1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
|
# -*- Autoconf -*-
# Process this file with autoconf to produce a configure script.
AC_INIT(cpplib, [ ], gcc-bugs@gcc.gnu.org, cpplib)
AC_CONFIG_SRCDIR(ucnid.h)
AC_CONFIG_MACRO_DIR(../config)
AC_CANONICAL_SYSTEM
# Checks for programs.
AC_PROG_MAKE_SET
AC_PROG_INSTALL
AC_PROG_CC
AC_PROG_CXX
AC_PROG_RANLIB
AC_CHECK_TOOL(AR, ar)
AC_USE_SYSTEM_EXTENSIONS
AC_SYS_LARGEFILE
MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
AC_CHECK_PROGS([ACLOCAL], [aclocal], [$MISSING aclocal])
AC_CHECK_PROGS([AUTOCONF], [autoconf], [$MISSING autoconf])
AC_CHECK_PROGS([AUTOHEADER], [autoheader], [$MISSING autoheader])
if test -z "$ETAGS"; then
ETAGS=etags
fi
AC_SUBST([ETAGS])
# Figure out what compiler warnings we can enable.
# See config/warnings.m4 for details.
ACX_PROG_CC_WARNING_OPTS([-W -Wall -Wno-narrowing -Wwrite-strings \
-Wmissing-format-attribute], [warn])
ACX_PROG_CC_WARNING_OPTS([-Wstrict-prototypes -Wmissing-prototypes \
-Wold-style-definition -Wc++-compat], [c_warn])
ACX_PROG_CC_WARNING_ALMOST_PEDANTIC([-Wno-long-long])
# Disable exceptions and RTTI if building with g++
ACX_PROG_CC_WARNING_OPTS(
m4_quote(m4_do([-fno-exceptions -fno-rtti])), [noexception_flags])
# Only enable with --enable-werror-always until existing warnings are
# corrected.
ACX_PROG_CC_WARNINGS_ARE_ERRORS([manual])
# Dependency checking.
ZW_CREATE_DEPDIR
AC_LANG_PUSH([C++])
AC_COMPILE_IFELSE([AC_LANG_SOURCE([int i;])], [],
[AC_MSG_ERROR([C++ compiler missing or inoperational])])
AC_LANG_POP([C++])
ZW_PROG_COMPILER_DEPENDENCIES([CXX])
# Checks for header files.
AC_HEADER_TIME
ACX_HEADER_STRING
AC_CHECK_HEADERS(locale.h fcntl.h limits.h stddef.h \
stdlib.h strings.h string.h sys/file.h unistd.h)
# Checks for typedefs, structures, and compiler characteristics.
AC_C_BIGENDIAN
AC_C_CONST
AC_C_INLINE
AC_FUNC_OBSTACK
AC_TYPE_OFF_T
AC_TYPE_SIZE_T
AC_TYPE_SSIZE_T
AC_TYPE_UINTPTR_T
AC_CHECK_TYPE(ptrdiff_t, int)
AC_TYPE_UINT64_T
if test x"$ac_cv_c_uint64_t" = x"no"; then
AC_MSG_ERROR([uint64_t not found])
fi
AC_STRUCT_TM
AC_CHECK_SIZEOF(int)
AC_CHECK_SIZEOF(long)
define(libcpp_UNLOCKED_FUNCS, clearerr_unlocked feof_unlocked dnl
ferror_unlocked fflush_unlocked fgetc_unlocked fgets_unlocked dnl
fileno_unlocked fprintf_unlocked fputc_unlocked fputs_unlocked dnl
fread_unlocked fwrite_unlocked getchar_unlocked getc_unlocked dnl
putchar_unlocked putc_unlocked)
AC_CHECK_FUNCS(libcpp_UNLOCKED_FUNCS)
AC_CHECK_DECLS([abort, asprintf, basename(char *), errno, getopt, vasprintf])
AC_CHECK_DECLS(m4_split(m4_normalize(libcpp_UNLOCKED_FUNCS)))
# Checks for library functions.
AC_FUNC_ALLOCA
AC_HEADER_STDC
AM_LANGINFO_CODESET
ZW_GNU_GETTEXT_SISTER_DIR
AC_CACHE_CHECK(for uchar, gcc_cv_type_uchar,
[AC_TRY_COMPILE([
#include <sys/types.h>
],
[if ((uchar *)0) return 0;
if (sizeof(uchar)) return 0;],
ac_cv_type_uchar=yes, ac_cv_type_uchar=no)])
if test $ac_cv_type_uchar = yes; then
AC_DEFINE(HAVE_UCHAR, 1,
[Define if <sys/types.h> defines \`uchar'.])
fi
AC_CHECK_SIZEOF(ino_t)
AC_CHECK_SIZEOF(dev_t)
# g++ on Solaris 10+ defines _XOPEN_SOURCE=600, which exposes a different
# iconv() prototype.
AC_LANG_PUSH([C++])
AM_ICONV
AC_LANG_POP([C++])
# More defines and substitutions.
PACKAGE="$PACKAGE_TARNAME"
AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE", [Define to the name of this package.])
AC_SUBST(PACKAGE)
if test "x$enable_nls" != xno; then
USED_CATALOGS='$(CATALOGS)'
else
USED_CATALOGS=
fi
AC_SUBST(USED_CATALOGS)
AC_ARG_ENABLE(maintainer-mode,
[ --enable-maintainer-mode enable rules only needed by maintainers],,
enable_maintainer_mode=no)
if test "x$enable_maintainer_mode" = xno; then
MAINT='#'
else
MAINT=
fi
AC_SUBST(MAINT)
# Enable expensive internal checks
is_release=
if test -f $srcdir/../gcc/DEV-PHASE \
&& test x"`cat $srcdir/../gcc/DEV-PHASE`" != xexperimental; then
is_release=yes
fi
AC_ARG_ENABLE(checking,
[AS_HELP_STRING([[--enable-checking[=LIST]]],
[enable expensive run-time checks. With LIST,
enable only specific categories of checks.
Categories are: yes,no,all,none,release.
Flags are: misc,valgrind or other strings])],
[ac_checking_flags="${enableval}"],[
# Determine the default checks.
if test x$is_release = x ; then
ac_checking_flags=yes
else
ac_checking_flags=release
fi])
IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
for check in release $ac_checking_flags
do
case $check in
# these set all the flags to specific states
yes|all) ac_checking=1 ; ac_assert_checking=1 ; ac_valgrind_checking= ;;
no|none) ac_checking= ; ac_assert_checking= ; ac_valgrind_checking= ;;
release) ac_checking= ; ac_assert_checking=1 ; ac_valgrind_checking= ;;
# these enable particular checks
assert) ac_assert_checking=1 ;;
misc) ac_checking=1 ;;
valgrind) ac_valgrind_checking=1 ;;
# accept
*) ;;
esac
done
IFS="$ac_save_IFS"
if test x$ac_checking != x ; then
AC_DEFINE(CHECKING_P, 1,
[Define to 1 if you want more run-time sanity checks.])
else
AC_DEFINE(CHECKING_P, 0)
fi
if test x$ac_assert_checking != x ; then
AC_DEFINE(ENABLE_ASSERT_CHECKING, 1,
[Define if you want assertions enabled. This is a cheap check.])
fi
if test x$ac_valgrind_checking != x ; then
AC_DEFINE(ENABLE_VALGRIND_CHECKING, 1,
[Define if you want to workaround valgrind (a memory checker) warnings about
possible memory leaks because of libcpp use of interior pointers.])
fi
AC_ARG_ENABLE(canonical-system-headers,
[ --enable-canonical-system-headers
enable or disable system headers canonicalization],
[],
enable_canonical_system_headers=yes)
if test $enable_canonical_system_headers != no; then
AC_DEFINE(ENABLE_CANONICAL_SYSTEM_HEADERS,
1, [Define to enable system headers canonicalization.])
fi
case $target in
i?86-* | x86_64-*)
AC_TRY_COMPILE([], [asm ("pcmpestri %0, %%xmm0, %%xmm1" : : "i"(0))],
[AC_DEFINE([HAVE_SSE4], [1],
[Define to 1 if you can assemble SSE4 insns.])])
esac
# Enable --enable-host-shared.
AC_ARG_ENABLE(host-shared,
[AS_HELP_STRING([--enable-host-shared],
[build host code as shared libraries])],
[PICFLAG=-fPIC], [PICFLAG=])
AC_SUBST(PICFLAG)
# Enable Intel CET on Intel CET enabled host if jit is enabled.
GCC_CET_HOST_FLAGS(CET_HOST_FLAGS)
case x$enable_languages in
*jit*)
;;
*)
CET_HOST_FLAGS=
;;
esac
AC_SUBST(CET_HOST_FLAGS)
AC_ARG_ENABLE(valgrind-annotations,
[AS_HELP_STRING([--enable-valgrind-annotations],
[enable valgrind runtime interaction])], [],
[enable_valgrind_annotations=no])
if test x$enable_valgrind_annotations != xno \
|| test x$ac_valgrind_checking != x; then
if (test $have_valgrind_h = no \
&& test $gcc_cv_header_memcheck_h = no \
&& test $gcc_cv_header_valgrind_memcheck_h = no); then
AC_MSG_ERROR([*** Can't find valgrind/memcheck.h, memcheck.h or valgrind.h])
fi
AC_DEFINE(ENABLE_VALGRIND_ANNOTATIONS, 1,
[Define to get calls to the valgrind runtime enabled.])
fi
# Output.
AC_CONFIG_HEADERS(config.h:config.in, [echo timestamp > stamp-h1])
AC_CONFIG_FILES(Makefile)
AC_OUTPUT
|
