| 136 |
|
AC_CHECK_LIB(posix4, sem_init) |
| 137 |
|
AC_CHECK_LIB(rt, timer_create) |
| 138 |
|
AC_CHECK_LIB(rt, shm_open) |
| 139 |
+ |
AC_CHECK_LIB(m, cos) |
| 140 |
|
|
| 141 |
|
dnl Do we need SDL? |
| 142 |
|
WANT_SDL=no |
| 422 |
|
dnl (end of code from openssh-3.2.2p1 configure.ac) |
| 423 |
|
|
| 424 |
|
|
| 425 |
+ |
dnl Check for systems where POSIX-style non-blocking I/O (O_NONBLOCK) |
| 426 |
+ |
dnl doesn't work or is unimplemented. On these systems (mostly older |
| 427 |
+ |
dnl ones), use the old BSD-style FIONBIO approach instead. [tcl.m4] |
| 428 |
+ |
AC_CACHE_CHECK([FIONBIO vs. O_NONBLOCK for non-blocking I/O], |
| 429 |
+ |
ac_cv_nonblocking_io, [ |
| 430 |
+ |
case "$host" in |
| 431 |
+ |
*-*-osf*) |
| 432 |
+ |
ac_cv_nonblocking_io=FIONBIO |
| 433 |
+ |
;; |
| 434 |
+ |
*-*-sunos4*) |
| 435 |
+ |
ac_cv_nonblocking_io=FIONBIO |
| 436 |
+ |
;; |
| 437 |
+ |
*-*-ultrix*) |
| 438 |
+ |
ac_cv_nonblocking_io=FIONBIO |
| 439 |
+ |
;; |
| 440 |
+ |
*) |
| 441 |
+ |
ac_cv_nonblocking_io=O_NONBLOCK |
| 442 |
+ |
;; |
| 443 |
+ |
esac |
| 444 |
+ |
]) |
| 445 |
+ |
if [[ "$ac_cv_nonblocking_io" = "FIONBIO" ]]; then |
| 446 |
+ |
AC_DEFINE(USE_FIONBIO, 1, [Define if BSD-style non-blocking I/O is to be used]) |
| 447 |
+ |
fi |
| 448 |
+ |
|
| 449 |
+ |
dnl Check whether compiler supports byte bit-fields |
| 450 |
+ |
AC_CACHE_CHECK([whether compiler supports byte bit-fields], |
| 451 |
+ |
ac_cv_have_byte_bitfields, [ |
| 452 |
+ |
AC_LANG_SAVE |
| 453 |
+ |
AC_LANG_CPLUSPLUS |
| 454 |
+ |
AC_TRY_RUN([ |
| 455 |
+ |
struct A { |
| 456 |
+ |
unsigned char b1:4; |
| 457 |
+ |
unsigned char b2:4; |
| 458 |
+ |
unsigned char c; |
| 459 |
+ |
unsigned short s; |
| 460 |
+ |
unsigned char a[4]; |
| 461 |
+ |
}; |
| 462 |
+ |
|
| 463 |
+ |
int main(void) { |
| 464 |
+ |
A a; |
| 465 |
+ |
return ! (sizeof(A) == 8 && &a.c == ((unsigned char *)&a + 1)); |
| 466 |
+ |
}], |
| 467 |
+ |
[ac_cv_have_byte_bitfields=yes], |
| 468 |
+ |
[ac_cv_have_byte_bitfields=no], |
| 469 |
+ |
dnl When cross-compiling, assume only GCC supports this |
| 470 |
+ |
[if [[ "$GCC" = "yes" ]]; then |
| 471 |
+ |
ac_cv_have_byte_bitfields="guessing yes" |
| 472 |
+ |
else |
| 473 |
+ |
ac_cv_have_byte_bitfields="guessing no" |
| 474 |
+ |
fi] |
| 475 |
+ |
) |
| 476 |
+ |
AC_LANG_RESTORE |
| 477 |
+ |
]) |
| 478 |
+ |
|
| 479 |
|
dnl AC_CHECK_FRAMEWORK($1=NAME, $2=INCLUDES) |
| 480 |
|
AC_DEFUN([AC_CHECK_FRAMEWORK], [ |
| 481 |
|
AS_VAR_PUSHDEF([ac_Framework], [ac_cv_framework_$1])dnl |
| 484 |
|
saved_LIBS="$LIBS" |
| 485 |
|
LIBS="$LIBS -framework $1" |
| 486 |
|
AC_TRY_LINK( |
| 487 |
< |
[$2], [int main(void) { return 0; }], |
| 487 |
> |
[$2], [], |
| 488 |
|
[AS_VAR_SET(ac_Framework, yes)], [AS_VAR_SET(ac_Framework, no); LIBS="$saved_LIBS"] |
| 489 |
|
) |
| 490 |
|
]) |
| 545 |
|
DEFINES="$DEFINES -DBSD_COMP -D_POSIX_PTHREAD_SEMANTICS" |
| 546 |
|
;; |
| 547 |
|
irix*) |
| 493 |
– |
ETHERSRC=ether_unix.cpp |
| 548 |
|
AUDIOSRC=Irix/audio_irix.cpp |
| 549 |
|
EXTRASYSSRCS=Irix/unaligned.c |
| 496 |
– |
dnl IRIX headers work fine, but somehow don't define or use "STDC_HEADERS" |
| 497 |
– |
DEFINES="$DEFINES -DCRTSCTS=CNEW_RTSCTS -DB230400=B115200 -DSTDC_HEADERS" |
| 550 |
|
LIBS="$LIBS -laudio" |
| 551 |
|
WANT_ESD=no |
| 552 |
|
|
| 556 |
|
CFLAGS=`echo "$CFLAGS -IPA" | sed -e "s/-g//g"` |
| 557 |
|
AC_MSG_CHECKING(if "-IPA" works) |
| 558 |
|
dnl Do a test compile of an empty function |
| 559 |
< |
AC_TRY_COMPILE(,, [AC_MSG_RESULT(yes); HAVE_IPA=yes], AC_MSG_RESULT(no)) |
| 559 |
> |
AC_TRY_COMPILE([#if defined __GNUC__ |
| 560 |
> |
# error GCC does not support IPA yet |
| 561 |
> |
#endif],, [AC_MSG_RESULT(yes); HAVE_IPA=yes], AC_MSG_RESULT(no)) |
| 562 |
|
CFLAGS="$ocflags" |
| 563 |
|
;; |
| 564 |
|
darwin*) |
| 577 |
|
esac |
| 578 |
|
|
| 579 |
|
dnl Is the slirp library supported? |
| 580 |
< |
if [[ "x$ETHERSRC" = "xether_unix.cpp" ]]; then |
| 580 |
> |
case "$ac_cv_have_byte_bitfields" in |
| 581 |
> |
yes|"guessing yes") |
| 582 |
> |
CAN_SLIRP=yes |
| 583 |
> |
ETHERSRC=ether_unix.cpp |
| 584 |
> |
;; |
| 585 |
> |
esac |
| 586 |
> |
if [[ -n "$CAN_SLIRP" ]]; then |
| 587 |
|
AC_DEFINE(HAVE_SLIRP, 1, [Define if slirp library is supported]) |
| 588 |
|
SLIRP_SRCS="\ |
| 589 |
|
../slirp/bootp.c ../slirp/ip_output.c ../slirp/tcp_input.c \ |
| 1096 |
|
dnl A dummy program that returns always true |
| 1097 |
|
AC_PATH_PROG([BLESS], "true") |
| 1098 |
|
|
| 1099 |
+ |
dnl Check for linker script support |
| 1100 |
+ |
case $target_os:$target_cpu in |
| 1101 |
+ |
linux*:i?86) LINKER_SCRIPT_FLAGS="-Wl,-T,ldscripts/linux-i386.ld";; |
| 1102 |
+ |
linux*:x86_64) LINKER_SCRIPT_FLAGS="-Wl,-T,ldscripts/linux-x86_64.ld";; |
| 1103 |
+ |
darwin*:powerpc)LINKER_SCRIPT_FLAGS="-Wl,-seg1addr,0x78048000";; |
| 1104 |
+ |
esac |
| 1105 |
+ |
if [[ -n "$LINKER_SCRIPT_FLAGS" ]]; then |
| 1106 |
+ |
AC_CACHE_CHECK([whether linker script is usable], |
| 1107 |
+ |
ac_cv_linker_script_works, [ |
| 1108 |
+ |
AC_LANG_SAVE |
| 1109 |
+ |
AC_LANG_CPLUSPLUS |
| 1110 |
+ |
saved_LDFLAGS="$LDFLAGS" |
| 1111 |
+ |
LDFLAGS="$LDFLAGS $LINKER_SCRIPT_FLAGS" |
| 1112 |
+ |
AC_TRY_RUN( |
| 1113 |
+ |
[int main() {if ((char *)&main < (char *)0x70000000) return 1;}], |
| 1114 |
+ |
[ac_cv_linker_script_works=yes], |
| 1115 |
+ |
[ac_cv_linker_script_works=no], |
| 1116 |
+ |
dnl When cross-compiling, assume it works |
| 1117 |
+ |
[ac_cv_linker_script_works="guessing yes"] |
| 1118 |
+ |
) |
| 1119 |
+ |
AC_LANG_RESTORE |
| 1120 |
+ |
if [[ "$ac_cv_linker_script_works" = "no" ]]; then |
| 1121 |
+ |
LDFLAGS="$saved_LDFLAGS" |
| 1122 |
+ |
LINKER_SCRIPT_FLAGS="" |
| 1123 |
+ |
fi |
| 1124 |
+ |
]) |
| 1125 |
+ |
fi |
| 1126 |
+ |
AC_TRANSLATE_DEFINE(HAVE_LINKER_SCRIPT, "$ac_cv_linker_script_works", |
| 1127 |
+ |
[Define if there is a linker script to relocate the executable above 0x70000000.]) |
| 1128 |
+ |
|
| 1129 |
|
dnl Determine the addressing mode to use |
| 1130 |
|
if [[ "x$WANT_NATIVE_M68K" = "xyes" ]]; then |
| 1131 |
|
ADDRESSING_MODE="real" |
| 1203 |
|
dnl Check for GCC 2.7 or higher. |
| 1204 |
|
HAVE_GCC27=no |
| 1205 |
|
AC_MSG_CHECKING(for GCC 2.7 or higher) |
| 1206 |
< |
AC_EGREP_CPP(xyes, |
| 1207 |
< |
[#if __GNUC__ - 1 > 1 || __GNUC_MINOR__ - 1 > 5 |
| 1208 |
< |
xyes |
| 1209 |
< |
#endif |
| 1210 |
< |
], [AC_MSG_RESULT(yes); HAVE_GCC27=yes], AC_MSG_RESULT(no)) |
| 1206 |
> |
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#if ! (__GNUC__ - 1 > 1 || __GNUC_MINOR__ - 1 > 5) |
| 1207 |
> |
# error gcc < 2.7 |
| 1208 |
> |
#endif |
| 1209 |
> |
]])], |
| 1210 |
> |
[AC_MSG_RESULT(yes); HAVE_GCC27=yes], |
| 1211 |
> |
[AC_MSG_RESULT(no)]) |
| 1212 |
|
|
| 1213 |
|
dnl Check for GCC 3.0 or higher. |
| 1214 |
|
HAVE_GCC30=no |
| 1215 |
|
AC_MSG_CHECKING(for GCC 3.0 or higher) |
| 1216 |
< |
AC_EGREP_CPP(xyes, |
| 1217 |
< |
[#if __GNUC__ >= 3 |
| 1218 |
< |
xyes |
| 1219 |
< |
#endif |
| 1220 |
< |
], [AC_MSG_RESULT(yes); HAVE_GCC30=yes], AC_MSG_RESULT(no)) |
| 1216 |
> |
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#if ! (__GNUC__ >= 3) |
| 1217 |
> |
# error gcc < 3 |
| 1218 |
> |
#endif |
| 1219 |
> |
]])], |
| 1220 |
> |
[AC_MSG_RESULT(yes); HAVE_GCC30=yes], |
| 1221 |
> |
[AC_MSG_RESULT(no)]) |
| 1222 |
|
|
| 1223 |
|
dnl Check for ICC. |
| 1224 |
|
AC_MSG_CHECKING(for ICC) |
| 1284 |
|
CFLAGS="$SAVED_CFLAGS" |
| 1285 |
|
fi |
| 1286 |
|
|
| 1287 |
< |
dnl Add -mdynamic-no-pic for MacOS X |
| 1288 |
< |
if [[ "x$HAVE_GCC30" = "xyes" ]]; then |
| 1287 |
> |
dnl Add -mdynamic-no-pic for MacOS X (XXX icc10 will support MacOS X) |
| 1288 |
> |
if [[ "x$HAVE_GCC30" = "xyes" -a "x$HAVE_ICC" = "xno" ]]; then |
| 1289 |
|
SAVED_CFLAGS="$CFLAGS" |
| 1290 |
|
CFLAGS="$CFLAGS -mdynamic-no-pic" |
| 1291 |
|
AC_CACHE_CHECK([whether the compiler supports -mdynamic-no-pic], |
