1 # -*- Autoconf -*- 2 # Process this file with autoconf to produce a configure script. 3 4 AC_INIT(cpplib, [ ], gcc-bugs (a] gcc.gnu.org, cpplib) 5 AC_CONFIG_SRCDIR(ucnid.h) 6 AC_CONFIG_MACRO_DIR(../config) 7 AC_CANONICAL_SYSTEM 8 9 # Checks for programs. 10 AC_PROG_MAKE_SET 11 AC_PROG_INSTALL 12 AC_PROG_CC 13 AC_PROG_CXX 14 AC_PROG_RANLIB 15 AC_CHECK_TOOL(AR, ar) 16 17 AC_USE_SYSTEM_EXTENSIONS 18 AC_SYS_LARGEFILE 19 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 25 if test -z "$ETAGS"; then 26 ETAGS=etags 27 fi 28 AC_SUBST([ETAGS]) 29 30 # Figure out what compiler warnings we can enable. 31 # See config/warnings.m4 for details. 32 33 ACX_PROG_CC_WARNING_OPTS([-W -Wall -Wno-narrowing -Wwrite-strings \ 34 -Wmissing-format-attribute], [warn]) 35 ACX_PROG_CC_WARNING_OPTS([-Wstrict-prototypes -Wmissing-prototypes \ 36 -Wold-style-definition -Wc++-compat], [c_warn]) 37 ACX_PROG_CC_WARNING_ALMOST_PEDANTIC([-Wno-long-long]) 38 39 # Disable exceptions and RTTI if building with g++ 40 ACX_PROG_CC_WARNING_OPTS( 41 m4_quote(m4_do([-fno-exceptions -fno-rtti])), [noexception_flags]) 42 43 # Only enable with --enable-werror-always until existing warnings are 44 # corrected. 45 ACX_PROG_CC_WARNINGS_ARE_ERRORS([manual]) 46 47 # Dependency checking. 48 ZW_CREATE_DEPDIR 49 AC_LANG_PUSH([C++]) 50 AC_COMPILE_IFELSE([AC_LANG_SOURCE([int i;])], [], 51 [AC_MSG_ERROR([C++ compiler missing or inoperational])]) 52 AC_LANG_POP([C++]) 53 ZW_PROG_COMPILER_DEPENDENCIES([CXX]) 54 55 # Checks for header files. 56 AC_HEADER_TIME 57 ACX_HEADER_STRING 58 59 AC_CHECK_HEADERS(locale.h fcntl.h limits.h stddef.h \ 60 stdlib.h strings.h string.h sys/file.h unistd.h) 61 62 # Checks for typedefs, structures, and compiler characteristics. 63 AC_C_BIGENDIAN 64 AC_C_CONST 65 AC_C_INLINE 66 AC_FUNC_OBSTACK 67 AC_TYPE_OFF_T 68 AC_TYPE_SIZE_T 69 AC_TYPE_SSIZE_T 70 AC_TYPE_UINTPTR_T 71 AC_CHECK_TYPE(ptrdiff_t, int) 72 AC_TYPE_UINT64_T 73 if test x"$ac_cv_c_uint64_t" = x"no"; then 74 AC_MSG_ERROR([uint64_t not found]) 75 fi 76 AC_STRUCT_TM 77 AC_CHECK_SIZEOF(int) 78 AC_CHECK_SIZEOF(long) 79 define(libcpp_UNLOCKED_FUNCS, clearerr_unlocked feof_unlocked dnl 80 ferror_unlocked fflush_unlocked fgetc_unlocked fgets_unlocked dnl 81 fileno_unlocked fprintf_unlocked fputc_unlocked fputs_unlocked dnl 82 fread_unlocked fwrite_unlocked getchar_unlocked getc_unlocked dnl 83 putchar_unlocked putc_unlocked) 84 AC_CHECK_FUNCS(libcpp_UNLOCKED_FUNCS setlocale) 85 AC_CHECK_DECLS([abort, asprintf, basename(char *), errno, getopt, vasprintf]) 86 AC_CHECK_DECLS(m4_split(m4_normalize(libcpp_UNLOCKED_FUNCS))) 87 88 # Checks for library functions. 89 AC_FUNC_ALLOCA 90 AC_HEADER_STDC 91 AM_LANGINFO_CODESET 92 ZW_GNU_GETTEXT_SISTER_DIR 93 94 AC_CACHE_CHECK(for uchar, gcc_cv_type_uchar, 95 [AC_TRY_COMPILE([ 96 #include <sys/types.h> 97 ], 98 [if ((uchar *)0) return 0; 99 if (sizeof(uchar)) return 0;], 100 ac_cv_type_uchar=yes, ac_cv_type_uchar=no)]) 101 if test $ac_cv_type_uchar = yes; then 102 AC_DEFINE(HAVE_UCHAR, 1, 103 [Define if <sys/types.h> defines \`uchar'.]) 104 fi 105 106 AC_CHECK_SIZEOF(ino_t) 107 AC_CHECK_SIZEOF(dev_t) 108 109 # g++ on Solaris 10+ defines _XOPEN_SOURCE=600, which exposes a different 110 # iconv() prototype. 111 AC_LANG_PUSH([C++]) 112 AM_ICONV 113 AC_LANG_POP([C++]) 114 115 # More defines and substitutions. 116 PACKAGE="$PACKAGE_TARNAME" 117 AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE", [Define to the name of this package.]) 118 AC_SUBST(PACKAGE) 119 120 if test "x$enable_nls" != xno; then 121 USED_CATALOGS='$(CATALOGS)' 122 else 123 USED_CATALOGS= 124 fi 125 AC_SUBST(USED_CATALOGS) 126 127 AC_ARG_ENABLE(maintainer-mode, 128 [ --enable-maintainer-mode enable rules only needed by maintainers],, 129 enable_maintainer_mode=no) 130 131 if test "x$enable_maintainer_mode" = xno; then 132 MAINT='#' 133 else 134 MAINT= 135 fi 136 AC_SUBST(MAINT) 137 138 # Enable expensive internal checks 139 is_release= 140 if test -f $srcdir/../gcc/DEV-PHASE \ 141 && test x"`cat $srcdir/../gcc/DEV-PHASE`" != xexperimental; then 142 is_release=yes 143 fi 144 145 AC_ARG_ENABLE(checking, 146 [AS_HELP_STRING([[--enable-checking[=LIST]]], 147 [enable expensive run-time checks. With LIST, 148 enable only specific categories of checks. 149 Categories are: yes,no,all,none,release. 150 Flags are: misc,valgrind or other strings])], 151 [ac_checking_flags="${enableval}"],[ 152 # Determine the default checks. 153 if test x$is_release = x ; then 154 ac_checking_flags=yes 155 else 156 ac_checking_flags=release 157 fi]) 158 IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS," 159 for check in release $ac_checking_flags 160 do 161 case $check in 162 # these set all the flags to specific states 163 yes|all) ac_checking=1 ; ac_assert_checking=1 ; ac_valgrind_checking= ;; 164 no|none) ac_checking= ; ac_assert_checking= ; ac_valgrind_checking= ;; 165 release) ac_checking= ; ac_assert_checking=1 ; ac_valgrind_checking= ;; 166 # these enable particular checks 167 assert) ac_assert_checking=1 ;; 168 misc) ac_checking=1 ;; 169 valgrind) ac_valgrind_checking=1 ;; 170 # accept 171 *) ;; 172 esac 173 done 174 IFS="$ac_save_IFS" 175 176 if test x$ac_checking != x ; then 177 AC_DEFINE(CHECKING_P, 1, 178 [Define to 1 if you want more run-time sanity checks.]) 179 else 180 AC_DEFINE(CHECKING_P, 0) 181 fi 182 183 if test x$ac_assert_checking != x ; then 184 AC_DEFINE(ENABLE_ASSERT_CHECKING, 1, 185 [Define if you want assertions enabled. This is a cheap check.]) 186 fi 187 188 AC_ARG_ENABLE(canonical-system-headers, 189 [ --enable-canonical-system-headers 190 enable or disable system headers canonicalization], 191 [], 192 enable_canonical_system_headers=yes) 193 if test $enable_canonical_system_headers != no; then 194 AC_DEFINE(ENABLE_CANONICAL_SYSTEM_HEADERS, 195 1, [Define to enable system headers canonicalization.]) 196 fi 197 198 case $target in 199 i?86-* | x86_64-*) 200 AC_TRY_COMPILE([], [asm ("pcmpestri %0, %%xmm0, %%xmm1" : : "i"(0))], 201 [AC_DEFINE([HAVE_SSE4], [1], 202 [Define to 1 if you can assemble SSE4 insns.])]) 203 esac 204 205 # Enable --enable-host-shared. 206 AC_ARG_ENABLE(host-shared, 207 [AS_HELP_STRING([--enable-host-shared], 208 [build host code as shared libraries])]) 209 AC_SUBST(enable_host_shared) 210 211 # Enable --enable-host-pie. 212 AC_ARG_ENABLE(host-pie, 213 [AS_HELP_STRING([--enable-host-pie], 214 [build host code as PIE])]) 215 AC_SUBST(enable_host_pie) 216 217 if test x$enable_host_shared = xyes; then 218 PICFLAG=-fPIC 219 elif test x$enable_host_pie = xyes; then 220 PICFLAG=-fPIE 221 else 222 PICFLAG= 223 fi 224 225 AC_SUBST(PICFLAG) 226 227 # Enable Intel CET on Intel CET enabled host if jit is enabled. 228 GCC_CET_HOST_FLAGS(CET_HOST_FLAGS) 229 case x$enable_languages in 230 *jit*) 231 ;; 232 *) 233 CET_HOST_FLAGS= 234 ;; 235 esac 236 AC_SUBST(CET_HOST_FLAGS) 237 238 AC_ARG_ENABLE(valgrind-annotations, 239 [AS_HELP_STRING([--enable-valgrind-annotations], 240 [enable valgrind runtime interaction])], [], 241 [enable_valgrind_annotations=no]) 242 if test x$enable_valgrind_annotations != xno \ 243 || test x$ac_valgrind_checking != x; then 244 AC_DEFINE(ENABLE_VALGRIND_WORKAROUNDS, 1, 245 [Define if you want to workaround Valgrind warnings about 246 possible memory leaks because of libcpp use of interior pointers.]) 247 fi 248 249 # Output. 250 251 AC_CONFIG_HEADERS(config.h:config.in, [echo timestamp > stamp-h1]) 252 AC_CONFIG_FILES(Makefile) 253 AC_OUTPUT 254
Indexes created Sat Feb 28 05:31:39 UTC 2026