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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426
|
AC_PREREQ([2.67])
AC_INIT(mpdecimal, 2.4.2, mpdecimal-bugs@bytereef.org, mpdecimal, http://www.bytereef.org/mpdecimal/index.html)
AC_CONFIG_HEADER(config.h)
AC_CONFIG_FILES([Makefile libmpdec/Makefile tests/Makefile libmpdec/mpdecimal.h])
AC_ARG_VAR(MACHINE, [force configuration: x64, uint128, ansi64, ppro, ansi32, ansi-legacy])
LIBSTATIC=libmpdec.a
LIBSONAME=libmpdec.so.2
LIBSHARED=libmpdec.so.2.4.2
AC_SUBST(LIBSTATIC)
AC_SUBST(LIBSONAME)
AC_SUBST(LIBSHARED)
# Apparently purely informational for this particular build:
AC_CANONICAL_HOST
AC_SUBST(build)
AC_SUBST(host)
# Language and compiler:
AC_LANG_C
saved_cflags=$CFLAGS
AC_PROG_CC
CFLAGS=$saved_cflags
# ar and ranlib:
AC_CHECK_TOOL(AR, ar, ar)
AC_PROG_RANLIB
AC_SUBST(RANLIB)
# System and machine type (only used for Solaris and Darwin):
AC_MSG_CHECKING(system as reported by uname -s)
ac_sys_system=`uname -s`
AC_MSG_RESULT($ac_sys_system)
# Checks for header files:
AC_HEADER_STDC
AC_CHECK_HEADERS(inttypes.h stdint.h)
# Type availability checks:
AC_TYPE_SIZE_T
AC_TYPE_INT32_T
AC_TYPE_INT64_T
AC_TYPE_UINT32_T
AC_TYPE_UINT64_T
AC_CHECK_TYPE(__uint128_t, AC_DEFINE(HAVE_UINT128_T, 1,
[Define if your compiler provides __uint128_t.]),,)
# Sizes of various types:
AC_CHECK_SIZEOF(size_t, 4)
AC_CHECK_SIZEOF(__uint128_t, 16)
# x64 with gcc asm:
AC_MSG_CHECKING(for x64 gcc inline assembler)
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[
__asm__ __volatile__ ("movq %rcx, %rax");
]])],[have_gcc_asm_for_x64=yes],[have_gcc_asm_for_x64=no])
AC_MSG_RESULT($have_gcc_asm_for_x64)
if test "$have_gcc_asm_for_x64" = yes; then
AC_DEFINE(HAVE_GCC_ASM_FOR_X64, 1,
[Define if we can use x64 gcc inline assembler.])
fi
# x87 with gcc asm:
AC_MSG_CHECKING(for x87 gcc inline assembler)
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[
unsigned short cw;
__asm__ __volatile__ ("fnstcw %0" : "=m" (cw));
__asm__ __volatile__ ("fldcw %0" : : "m" (cw));
]])],[have_gcc_asm_for_x87=yes],[have_gcc_asm_for_x87=no])
AC_MSG_RESULT($have_gcc_asm_for_x87)
if test "$have_gcc_asm_for_x87" = yes; then
AC_DEFINE(HAVE_GCC_ASM_FOR_X87, 1,
[Define if we can use x87 gcc inline assembler.])
fi
# Availability of -O2:
AC_MSG_CHECKING(for -O2)
saved_cflags="$CFLAGS"
CFLAGS="-O2"
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[
]])],[have_O2=yes],[have_O2=no])
AC_MSG_RESULT($have_O2)
CFLAGS="$saved_cflags"
# Install program:
AC_PROG_INSTALL
AC_SUBST(INSTALL)
# _FORTIFY_SOURCE wrappers for memmove and bcopy are incorrect:
# http://sourceware.org/ml/libc-alpha/2010-12/msg00009.html
AC_MSG_CHECKING(for glibc _FORTIFY_SOURCE/memmove bug)
saved_cflags="$CFLAGS"
CFLAGS="-O2 -D_FORTIFY_SOURCE=2"
if test "$have_O2" = no; then
CFLAGS=""
fi
AC_RUN_IFELSE([AC_LANG_SOURCE([[
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
void foo(void *p, void *q) { memmove(p, q, 19); }
int main() {
char a[32] = "123456789000000000";
foo(&a[9], a);
if (strcmp(a, "123456789123456789000000000") != 0)
return 1;
foo(a, &a[9]);
if (strcmp(a, "123456789000000000") != 0)
return 1;
return 0;
}
]])],
[have_glibc_memmove_bug=no],
[have_glibc_memmove_bug=yes],
[have_glibc_memmove_bug=undefined])
CFLAGS="$saved_cflags"
AC_MSG_RESULT($have_glibc_memmove_bug)
if test "$have_glibc_memmove_bug" = yes; then
AC_DEFINE(HAVE_GLIBC_MEMMOVE_BUG, 1,
[Define if glibc has incorrect _FORTIFY_SOURCE wrappers
for memmove and bcopy.])
fi
# suncc is dectected as cc:
case $ac_sys_system in
sun*|Sun*)
case $CC in
cc)
CC=suncc
;;
esac
esac
# Compiler dependent settings:
MPD_WARN=
MPD_OPT="-O2"
MPD_PGEN=
MPD_PUSE=
case $CC in
*gcc*)
MPD_WARN="-Wall -W -Wno-unknown-pragmas -std=c99 -pedantic"
MPD_OPT="-O2"
MPD_PGEN="-fprofile-generate -fprofile-values"
MPD_PUSE="-fprofile-use -freorder-blocks"
;;
*icc*)
AR=xiar
MPD_WARN="-Wall -Wno-unknown-pragmas"
MPD_OPT="-O2"
MPD_PGEN="-wd11505 -prof-gen"
MPD_PUSE="-wd11505 -prof-use"
;;
*clang*)
MPD_WARN="-Wall -W -Wno-unknown-pragmas"
MPD_OPT="-O2"
;;
*suncc*)
MPD_OPT="-O2"
;;
*ccomp*)
MPD_CONFIG="-DCONFIG_32 -DANSI -DLEGACY_COMPILER"
MPD_OPT="-fstruct-passing -fstruct-assign"
LD="gcc"
LDFLAGS="-m32"
;;
esac
# Values for the MPD_HEADER_CONFIG variable:
CONFIG_64="
/* ABI: 64-bit */
#ifdef CONFIG_32
#error \"cannot use CONFIG_32 with 64-bit header.\"
#endif
#ifndef CONFIG_64
#define CONFIG_64
#endif"
CONFIG_32="
/* ABI: 32-bit */
#ifdef CONFIG_64
#error \"cannot use CONFIG_64 with 32-bit header.\"
#endif
#ifndef CONFIG_32
#define CONFIG_32
#endif"
CONFIG_32_LEGACY="
/* ABI: 32-bit */
#ifdef CONFIG_64
#error \"cannot use CONFIG_64 with 32-bit header.\"
#endif
#ifndef CONFIG_32
#define CONFIG_32
#endif
/* libmpdec was compiled without support for int64_t */
#ifndef LEGACY_COMPILER
#define LEGACY_COMPILER
#endif"
CONFIG_UNIVERSAL="
/* Mac OS X: support for building universal binaries */
#if defined(CONFIG_64) || defined(CONFIG_32)
#error \"cannot use CONFIG_64 or CONFIG_32 with universal header.\"
#endif
#if defined(__ppc__)
#define CONFIG_32
#define ANSI
#elif defined(__ppc64__)
#define CONFIG_64
#define ANSI
#elif defined(__i386__)
#define CONFIG_32
#define ANSI
#elif defined(__x86_64__)
#define CONFIG_64
#define ASM
#else
#error \"unknown architecture for universal build.\"
#endif"
CONFIG_FULLCOV="
/* DO NOT USE IN PRODUCTION! */
#if defined(CONFIG_64) || !defined(CONFIG_32)
#error \"CONFIG_32 must be defined for full coverage.\"
#endif"
# Auto-detect machine dependent settings:
M64=
M32=
if test -n "$MACHINE"; then
M64="-m64 "
M32="-m32 "
case "$MACHINE" in
x64|uint128|ansi64|full_coverage|ppro|ansi32|ansi-legacy|universal)
: ;;
*)
echo "configure: error: invalid MACHINE variable: $MACHINE"
exit 1 ;;
esac
elif test $ac_cv_sizeof_size_t -eq 8; then
if test $have_gcc_asm_for_x64 = yes; then
MACHINE="x64"
elif test $ac_cv_type___uint128_t = yes; then
MACHINE="uint128"
else
MACHINE="ansi64"
fi
else
# Macros for detecting uint64_t and int64_t are unreliable:
case $CC in
*ccomp*)
MACHINE="ansi-legacy"
;;
*)
MACHINE="ansi32"
;;
esac
if test $have_gcc_asm_for_x87 = yes; then
case $CC in
*gcc*|*clang*) # icc >= 11.0 works as well
case $ac_sys_system in
darwin*|Darwin*)
;;
*)
MACHINE="ppro"
;;
esac
;;
esac
fi
fi
# Set configuration variables:
MPD_PREC=9
MPD_DPREC=18
CONFIGURE_LDFLAGS=
case "$MACHINE" in
x64)
MPD_HEADER_CONFIG=$CONFIG_64
MPD_CONFIG=$M64"-DCONFIG_64 -DASM"
CONFIGURE_LDFLAGS=$M64
MPD_PREC=19
MPD_DPREC=38
;;
uint128)
MPD_HEADER_CONFIG=$CONFIG_64
MPD_CONFIG=$M64"-DCONFIG_64 -DANSI -DHAVE_UINT128_T"
CONFIGURE_LDFLAGS=$M64
MPD_PREC=19
MPD_DPREC=38
;;
ansi64)
MPD_HEADER_CONFIG=$CONFIG_64
MPD_CONFIG=$M64"-DCONFIG_64 -DANSI"
CONFIGURE_LDFLAGS=$M64
MPD_PREC=19
MPD_DPREC=38
;;
full_coverage)
# Formerly ansi64c32, for testing only!
MPD_HEADER_CONFIG=$CONFIG_FULLCOV
MPD_CONFIG=$M64"-DCONFIG_32 -DANSI"
CONFIGURE_LDFLAGS=$M64
;;
ppro)
MPD_HEADER_CONFIG=$CONFIG_32
MPD_CONFIG=$M32"-DCONFIG_32 -DPPRO -DASM"
CONFIGURE_LDFLAGS=$M32
# Some versions of gcc miscompile inline asm:
# http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46491
# http://gcc.gnu.org/ml/gcc/2010-11/msg00366.html
case $CC in
*gcc*)
AC_MSG_CHECKING(for gcc ipa-pure-const bug)
saved_cflags="$CFLAGS"
CFLAGS="-O2"
AC_RUN_IFELSE([AC_LANG_SOURCE([[
__attribute__((noinline)) int
foo(int *p) {
int r;
asm ( "movl \$6, (%1)\n\t"
"xorl %0, %0\n\t"
: "=r" (r) : "r" (p) : "memory"
);
return r;
}
int main() {
int p = 8;
if ((foo(&p) ? : p) != 6)
return 1;
return 0;
}
]])],
[have_ipa_pure_const_bug=no],
[have_ipa_pure_const_bug=yes],
[have_ipa_pure_const_bug=undefined])
CFLAGS="$saved_cflags"
AC_MSG_RESULT($have_ipa_pure_const_bug)
if test "$have_ipa_pure_const_bug" = yes; then
MPD_CONFIG="$MPD_CONFIG -fno-ipa-pure-const"
AC_DEFINE(HAVE_IPA_PURE_CONST_BUG, 1,
[Define if gcc has the ipa-pure-const bug.])
fi
;;
esac
;;
ansi32)
MPD_HEADER_CONFIG=$CONFIG_32
MPD_CONFIG=$M32"-DCONFIG_32 -DANSI"
CONFIGURE_LDFLAGS=$M32
;;
ansi-legacy)
MPD_HEADER_CONFIG=$CONFIG_32_LEGACY
MPD_CONFIG=$M32"-DCONFIG_32 -DANSI -DLEGACY_COMPILER"
CONFIGURE_LDFLAGS=$M32
;;
universal)
MPD_HEADER_CONFIG=$CONFIG_UNIVERSAL
MPD_CONFIG="-DUNIVERSAL"
esac
# Substitute variables and generate output:
if test -z "$LD"; then
LD="$CC"
fi
AC_SUBST(LD)
AC_SUBST(AR)
AC_SUBST(MPD_HEADER)
AC_SUBST(MPD_WARN)
AC_SUBST(MPD_CONFIG)
AC_SUBST(MPD_HEADER_CONFIG)
AC_SUBST(MPD_OPT)
AC_SUBST(MPD_PGEN)
AC_SUBST(MPD_PUSE)
AC_SUBST(MPD_PREC)
AC_SUBST(MPD_DPREC)
if test -z "$CFLAGS"; then
CONFIGURE_CFLAGS="$MPD_WARN $MPD_CONFIG $MPD_OPT"
else
CONFIGURE_CFLAGS="$MPD_WARN $MPD_CONFIG $MPD_OPT $CFLAGS"
fi
if test "$have_glibc_memmove_bug" = yes; then
CONFIGURE_CFLAGS="$CONFIGURE_CFLAGS -U_FORTIFY_SOURCE"
fi
if test -n "$LDFLAGS"; then
CONFIGURE_LDFLAGS="$LDFLAGS"
fi
AC_SUBST(CONFIGURE_CFLAGS)
AC_SUBST(CONFIGURE_LDFLAGS)
AC_OUTPUT
GLIBC_MEMMOVE_BUG_WARN="
***************************** WARNING *********************************
Detected glibc _FORTIFY_SOURCE/memmove bug. See:
http://sourceware.org/ml/libc-alpha/2010-12/msg00009.html
Enabling -U_FORTIFY_SOURCE workaround. If -D_FORTIFY_SOURCE is also
present in the command line, make sure that the order of the two
options is:
... -D_FORTIFY_SOURCE=2 ... -U_FORTIFY_SOURCE ...
A better solution is to upgrade glibc or to report the bug to your
OS vendor.
***************************** WARNING *********************************
"
if test "$have_glibc_memmove_bug" = yes; then
echo "$GLIBC_MEMMOVE_BUG_WARN"
fi
|