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4f4e53dd PB |
1 | # -*- Autoconf -*- |
2 | # Process this file with autoconf to produce a configure script. | |
3 | ||
4f4e53dd PB |
4 | AC_INIT(cpplib, [ ], gcc-bugs@gcc.gnu.org, cpplib) |
5 | AC_CONFIG_SRCDIR(ucnid.h) | |
88fa57d7 | 6 | AC_CONFIG_MACRO_DIR(../config) |
4f4e53dd | 7 | AC_CANONICAL_SYSTEM |
4f4e53dd PB |
8 | |
9 | # Checks for programs. | |
018a4785 ZW |
10 | AC_PROG_MAKE_SET |
11 | AC_PROG_INSTALL | |
4f4e53dd | 12 | AC_PROG_CC |
f1bf410c | 13 | AC_PROG_CXX |
4f4e53dd | 14 | AC_PROG_RANLIB |
731c4ce0 | 15 | AC_CHECK_TOOL(AR, ar) |
4f4e53dd | 16 | |
0e1a989c | 17 | AC_USE_SYSTEM_EXTENSIONS |
480767a9 ILT |
18 | AC_SYS_LARGEFILE |
19 | ||
078e3ffe PB |
20 | MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing |
21 | AC_CHECK_PROGS([ACLOCAL], [aclocal], [$MISSING aclocal]) | |
22 | AC_CHECK_PROGS([AUTOCONF], [autoconf], [$MISSING autoconf]) | |
23 | AC_CHECK_PROGS([AUTOHEADER], [autoheader], [$MISSING autoheader]) | |
24 | ||
018a4785 ZW |
25 | # Figure out what compiler warnings we can enable. |
26 | # See config/warnings.m4 for details. | |
27 | ||
25339f10 | 28 | ACX_PROG_CC_WARNING_OPTS([-W -Wall -Wno-narrowing -Wwrite-strings \ |
f1bf410c JQ |
29 | -Wmissing-format-attribute], [warn]) |
30 | ACX_PROG_CC_WARNING_OPTS([-Wstrict-prototypes -Wmissing-prototypes \ | |
31 | -Wold-style-definition -Wc++-compat], [c_warn]) | |
018a4785 ZW |
32 | ACX_PROG_CC_WARNING_ALMOST_PEDANTIC([-Wno-long-long]) |
33 | ||
e9411247 MM |
34 | # Disable exceptions and RTTI if building with g++ |
35 | ACX_PROG_CC_WARNING_OPTS( | |
36 | m4_quote(m4_do([-fno-exceptions -fno-rtti])), [noexception_flags]) | |
37 | ||
018a4785 ZW |
38 | # Only enable with --enable-werror-always until existing warnings are |
39 | # corrected. | |
40 | ACX_PROG_CC_WARNINGS_ARE_ERRORS([manual]) | |
41 | ||
f610dd5f ZW |
42 | # Dependency checking. |
43 | ZW_CREATE_DEPDIR | |
ff5dfc48 | 44 | AC_LANG_PUSH([C++]) |
22e05272 | 45 | AC_COMPILE_IFELSE([AC_LANG_SOURCE([int i;])], [], |
ff5dfc48 JR |
46 | [AC_MSG_ERROR([C++ compiler missing or inoperational])]) |
47 | AC_LANG_POP([C++]) | |
f1bf410c | 48 | ZW_PROG_COMPILER_DEPENDENCIES([CXX]) |
f610dd5f | 49 | |
4f4e53dd PB |
50 | # Checks for header files. |
51 | AC_HEADER_TIME | |
52 | ACX_HEADER_STRING | |
f1bf410c | 53 | |
0e1a989c | 54 | AC_CHECK_HEADERS(locale.h fcntl.h limits.h stddef.h \ |
f1bf410c | 55 | stdlib.h strings.h string.h sys/file.h unistd.h) |
4f4e53dd PB |
56 | |
57 | # Checks for typedefs, structures, and compiler characteristics. | |
246a2fcb | 58 | AC_C_BIGENDIAN |
4f4e53dd PB |
59 | AC_C_CONST |
60 | AC_C_INLINE | |
61 | AC_FUNC_OBSTACK | |
62 | AC_TYPE_OFF_T | |
63 | AC_TYPE_SIZE_T | |
246a2fcb RH |
64 | AC_TYPE_SSIZE_T |
65 | AC_TYPE_UINTPTR_T | |
66 | AC_CHECK_TYPE(ptrdiff_t, int) | |
edf6ddf6 RB |
67 | AC_TYPE_UINT64_T |
68 | if test x"$ac_cv_c_uint64_t" = x"no"; then | |
69 | AC_MSG_ERROR([uint64_t not found]) | |
70 | fi | |
4f4e53dd PB |
71 | AC_STRUCT_TM |
72 | AC_CHECK_SIZEOF(int) | |
73 | AC_CHECK_SIZEOF(long) | |
0d667716 KG |
74 | define(libcpp_UNLOCKED_FUNCS, clearerr_unlocked feof_unlocked dnl |
75 | ferror_unlocked fflush_unlocked fgetc_unlocked fgets_unlocked dnl | |
76 | fileno_unlocked fprintf_unlocked fputc_unlocked fputs_unlocked dnl | |
77 | fread_unlocked fwrite_unlocked getchar_unlocked getc_unlocked dnl | |
78 | putchar_unlocked putc_unlocked) | |
79 | AC_CHECK_FUNCS(libcpp_UNLOCKED_FUNCS) | |
c3f247f4 RW |
80 | AC_CHECK_DECLS([abort, asprintf, basename(char *), errno, getopt, vasprintf]) |
81 | AC_CHECK_DECLS(m4_split(m4_normalize(libcpp_UNLOCKED_FUNCS))) | |
4f4e53dd PB |
82 | |
83 | # Checks for library functions. | |
84 | AC_FUNC_ALLOCA | |
85 | AC_HEADER_STDC | |
86 | AM_LANGINFO_CODESET | |
87 | ZW_GNU_GETTEXT_SISTER_DIR | |
88 | ||
89 | AC_CACHE_CHECK(for uchar, gcc_cv_type_uchar, | |
90 | [AC_TRY_COMPILE([ | |
f78ce0c2 | 91 | #include <sys/types.h> |
4f4e53dd PB |
92 | ], |
93 | [if ((uchar *)0) return 0; | |
94 | if (sizeof(uchar)) return 0;], | |
95 | ac_cv_type_uchar=yes, ac_cv_type_uchar=no)]) | |
96 | if test $ac_cv_type_uchar = yes; then | |
97 | AC_DEFINE(HAVE_UCHAR, 1, | |
98 | [Define if <sys/types.h> defines \`uchar'.]) | |
99 | fi | |
100 | ||
5b6d595b RO |
101 | # g++ on Solaris 10+ defines _XOPEN_SOURCE=600, which exposes a different |
102 | # iconv() prototype. | |
0823efed DN |
103 | AC_LANG_PUSH([C++]) |
104 | AM_ICONV | |
105 | AC_LANG_POP([C++]) | |
078e3ffe PB |
106 | |
107 | # More defines and substitutions. | |
39b8ce7f | 108 | PACKAGE="$PACKAGE_TARNAME" |
078e3ffe PB |
109 | AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE", [Define to the name of this package.]) |
110 | AC_SUBST(PACKAGE) | |
111 | ||
112 | if test "x$enable_nls" != xno; then | |
113 | USED_CATALOGS='$(CATALOGS)' | |
114 | else | |
115 | USED_CATALOGS= | |
116 | fi | |
117 | AC_SUBST(USED_CATALOGS) | |
118 | ||
119 | AC_ARG_ENABLE(maintainer-mode, | |
120 | [ --enable-maintainer-mode enable rules only needed by maintainers],, | |
121 | enable_maintainer_mode=no) | |
122 | ||
123 | if test "x$enable_maintainer_mode" = xno; then | |
124 | MAINT='#' | |
125 | else | |
126 | MAINT= | |
127 | fi | |
128 | AC_SUBST(MAINT) | |
129 | ||
1a80db97 JJ |
130 | # Enable expensive internal checks |
131 | is_release= | |
132 | if test -f $srcdir/../gcc/DEV-PHASE \ | |
133 | && test x"`cat $srcdir/../gcc/DEV-PHASE`" != xexperimental; then | |
134 | is_release=yes | |
135 | fi | |
4f4e53dd | 136 | |
1a80db97 JJ |
137 | AC_ARG_ENABLE(checking, |
138 | [AS_HELP_STRING([[--enable-checking[=LIST]]], | |
139 | [enable expensive run-time checks. With LIST, | |
140 | enable only specific categories of checks. | |
141 | Categories are: yes,no,all,none,release. | |
142 | Flags are: misc,valgrind or other strings])], | |
143 | [ac_checking_flags="${enableval}"],[ | |
144 | # Determine the default checks. | |
145 | if test x$is_release = x ; then | |
146 | ac_checking_flags=yes | |
147 | else | |
148 | ac_checking_flags=release | |
149 | fi]) | |
150 | IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS," | |
151 | for check in release $ac_checking_flags | |
152 | do | |
153 | case $check in | |
154 | # these set all the flags to specific states | |
3549e181 JJ |
155 | yes|all) ac_checking=1 ; ac_assert_checking=1 ; ac_valgrind_checking= ;; |
156 | no|none) ac_checking= ; ac_assert_checking= ; ac_valgrind_checking= ;; | |
157 | release) ac_checking= ; ac_assert_checking=1 ; ac_valgrind_checking= ;; | |
1a80db97 | 158 | # these enable particular checks |
3549e181 | 159 | assert) ac_assert_checking=1 ;; |
1a80db97 JJ |
160 | misc) ac_checking=1 ;; |
161 | valgrind) ac_valgrind_checking=1 ;; | |
162 | # accept | |
163 | *) ;; | |
164 | esac | |
165 | done | |
166 | IFS="$ac_save_IFS" | |
167 | ||
168 | if test x$ac_checking != x ; then | |
7ec491c0 MM |
169 | AC_DEFINE(CHECKING_P, 1, |
170 | [Define to 1 if you want more run-time sanity checks.]) | |
171 | else | |
172 | AC_DEFINE(CHECKING_P, 0) | |
4f4e53dd PB |
173 | fi |
174 | ||
3549e181 JJ |
175 | if test x$ac_assert_checking != x ; then |
176 | AC_DEFINE(ENABLE_ASSERT_CHECKING, 1, | |
177 | [Define if you want assertions enabled. This is a cheap check.]) | |
178 | fi | |
179 | ||
1a80db97 JJ |
180 | if test x$ac_valgrind_checking != x ; then |
181 | AC_DEFINE(ENABLE_VALGRIND_CHECKING, 1, | |
182 | [Define if you want to workaround valgrind (a memory checker) warnings about | |
183 | possible memory leaks because of libcpp use of interior pointers.]) | |
184 | fi | |
185 | ||
5dc99c46 SB |
186 | AC_ARG_ENABLE(canonical-system-headers, |
187 | [ --enable-canonical-system-headers | |
188 | enable or disable system headers canonicalization], | |
189 | [], | |
190 | enable_canonical_system_headers=yes) | |
191 | if test $enable_canonical_system_headers != no; then | |
192 | AC_DEFINE(ENABLE_CANONICAL_SYSTEM_HEADERS, | |
193 | 1, [Define to enable system headers canonicalization.]) | |
194 | fi | |
195 | ||
6f173e52 RH |
196 | case $target in |
197 | i?86-* | x86_64-*) | |
198 | AC_TRY_COMPILE([], [asm ("pcmpestri %0, %%xmm0, %%xmm1" : : "i"(0))], | |
199 | [AC_DEFINE([HAVE_SSE4], [1], | |
200 | [Define to 1 if you can assemble SSE4 insns.])]) | |
201 | esac | |
202 | ||
459260ec DM |
203 | # Enable --enable-host-shared. |
204 | AC_ARG_ENABLE(host-shared, | |
205 | [AS_HELP_STRING([--enable-host-shared], | |
206 | [build host code as shared libraries])], | |
207 | [PICFLAG=-fPIC], [PICFLAG=]) | |
208 | AC_SUBST(PICFLAG) | |
209 | ||
051da742 L |
210 | # Enable Intel CET on Intel CET enabled host if jit is enabled. |
211 | GCC_CET_HOST_FLAGS(CET_HOST_FLAGS) | |
212 | case x$enable_languages in | |
213 | *jit*) | |
214 | ;; | |
215 | *) | |
216 | CET_HOST_FLAGS= | |
217 | ;; | |
218 | esac | |
219 | AC_SUBST(CET_HOST_FLAGS) | |
220 | ||
ceb17928 ML |
221 | AC_ARG_ENABLE(valgrind-annotations, |
222 | [AS_HELP_STRING([--enable-valgrind-annotations], | |
223 | [enable valgrind runtime interaction])], [], | |
224 | [enable_valgrind_annotations=no]) | |
225 | if test x$enable_valgrind_annotations != xno \ | |
226 | || test x$ac_valgrind_checking != x; then | |
227 | if (test $have_valgrind_h = no \ | |
228 | && test $gcc_cv_header_memcheck_h = no \ | |
229 | && test $gcc_cv_header_valgrind_memcheck_h = no); then | |
230 | AC_MSG_ERROR([*** Can't find valgrind/memcheck.h, memcheck.h or valgrind.h]) | |
231 | fi | |
232 | AC_DEFINE(ENABLE_VALGRIND_ANNOTATIONS, 1, | |
233 | [Define to get calls to the valgrind runtime enabled.]) | |
234 | fi | |
235 | ||
078e3ffe PB |
236 | # Output. |
237 | ||
238 | AC_CONFIG_HEADERS(config.h:config.in, [echo timestamp > stamp-h1]) | |
4f4e53dd PB |
239 | AC_CONFIG_FILES(Makefile) |
240 | AC_OUTPUT |