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configure.in
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dnl Process this file with autoconf to produce a configure script.
AC_INIT()
AC_PREREQ(2.58)
AC_DEFUN([RUBY_MINGW32],
[case "$host_os" in
cygwin*)
AC_CACHE_CHECK(for mingw32 environment, rb_cv_mingw32,
[AC_TRY_CPP([
#ifndef __MINGW32__
# error
#endif
], rb_cv_mingw32=yes,rb_cv_mingw32=no)
rm -f conftest*])
test "$rb_cv_mingw32" = yes && target_os="mingw32"
;;
esac])
AC_DEFUN([RUBY_CPPOUTFILE],
[AC_CACHE_CHECK(whether ${CPP} accepts -o, rb_cv_cppoutfile,
[cppflags=$CPPFLAGS
CPPFLAGS='-o conftest.i'
AC_TRY_CPP([], rb_cv_cppoutfile=yes, rb_cv_cppoutfile=no)
CPPFLAGS=$cppflags
rm -f conftest*])
if test "$rb_cv_cppoutfile" = yes; then
CPPOUTFILE='-o conftest.i'
elif test "$rb_cv_cppoutfile" = no; then
CPPOUTFILE='> conftest.i'
elif test -n "$rb_cv_cppoutfile"; then
CPPOUTFILE="$rb_cv_cppoutfile"
fi
AC_SUBST(CPPOUTFILE)])
AC_DEFUN([RUBY_PROG_GNU_LD],
[AC_CACHE_CHECK(whether the linker is GNU ld, rb_cv_prog_gnu_ld,
[if `$CC $CFLAGS $CPPFLAGS $LDFLAGS --print-prog-name=ld 2>&1` -v 2>&1 | grep "GNU ld" > /dev/null; then
rb_cv_prog_gnu_ld=yes
else
rb_cv_prog_gnu_ld=no
fi
])
GNU_LD=$rb_cv_prog_gnu_ld
AC_SUBST(GNU_LD)])
rb_version=`grep RUBY_VERSION $srcdir/version.h`
MAJOR=`expr "$rb_version" : '#define RUBY_VERSION "\([0-9][0-9]*\)\.[0-9][0-9]*\.[0-9][0-9]*"'`
MINOR=`expr "$rb_version" : '#define RUBY_VERSION "[0-9][0-9]*\.\([0-9][0-9]*\)\.[0-9][0-9]*"'`
TEENY=`expr "$rb_version" : '#define RUBY_VERSION "[0-9][0-9]*\.[0-9][0-9]*\.\([0-9][0-9]*\)"'`
AC_SUBST(MAJOR)
AC_SUBST(MINOR)
AC_SUBST(TEENY)
dnl checks for alternative programs
AC_ARG_WITH(gcc, [ --without-gcc never use gcc], [
case $withval in
no) : ${CC=cc}
;;
yes) : ${CC=gcc}
;;
*) CC=$withval
;;
esac])
dnl If the user switches compilers, we can't believe the cache
if test ! -z "$ac_cv_prog_CC" -a ! -z "$CC" -a "$CC" != "$ac_cv_prog_CC"
then
AC_MSG_ERROR(cached CC is different -- throw away $cache_file
(it is also a good idea to do 'make clean' before compiling))
fi
if test "$program_prefix" = NONE; then
program_prefix=
fi
AC_CANONICAL_TARGET
target_os=`echo $target_os | sed 's/linux-gnu$/linux/;s/linux-gnu/linux-/'`
ac_install_sh='' # unusable for extension libraries.
dnl checks for fat-binary
AC_ARG_ENABLE(fat-binary,
[ --enable-fat-binary=ARCHS
build an Apple/NeXT Multi Architecture Binary (MAB);
ARCHS is a comma-delimited list of architectures for
which to build; if ARCHS is omitted, then the package
will be built for all architectures supported by the
platform ("ppc" for MacOS/X and Darwin; "ppc,i386"
for Rhapsody; "m68k,i386,sparc" for OpenStep;
"m68k,i386,sparc,hppa" for NextStep); if this option
is disabled or omitted entirely, then the package
will be built only for the target platform],
[fat_binary=$enableval], [fat_binary=no])
if test "$fat_binary" != no; then
AC_MSG_CHECKING([target architectures])
# Respect TARGET_ARCHS setting from environment if available.
if test -z "$TARGET_ARCHS"; then
# Respect ARCH given to --enable-fat-binary if present.
if test "$fat_binary" != yes; then
TARGET_ARCHS=`echo "$fat_binary" | tr ',' ' '`
else
# Choose a default set of architectures based upon platform.
case "$target_os" in
darwin*)
TARGET_ARCHS="ppc"
;;
rhapsody*)
TARGET_ARCHS="ppc i386"
;;
openstep*)
TARGET_ARCHS="m68k i386 sparc"
;;
nextstep*)
TARGET_ARCHS="m68k i386 sparc hppa"
;;
*)
TARGET_ARCHS=`arch`
esac
fi
fi
AC_MSG_RESULT([$TARGET_ARCHS])
# /usr/lib/arch_tool -archify_list $TARGET_ARCHS
ARCH_FLAG=
for archs in $TARGET_ARCHS
do
ARCH_FLAG="$ARCH_FLAG -arch $archs"
done
AC_DEFINE(NEXT_FAT_BINARY)
fi
case $target_cpu in
i?86) frame_address=yes;;
*) frame_address=no;;
esac
AC_ARG_ENABLE(frame-address,
[ --enable-frame-address use GCC __builtin_frame_address(). ],
[frame_address=$enableval])
if test $frame_address = yes; then
AC_DEFINE(USE_BUILTIN_FRAME_ADDRESS)
fi
AC_ARG_PROGRAM
dnl Checks for programs.
if test x"${build}" != x"${host}"; then
AC_CHECK_TOOL(CC, gcc)
fi
AC_PROG_CC
AC_PROG_CXX
AC_PROG_GCC_TRADITIONAL
RUBY_PROG_GNU_LD
RUBY_CPPOUTFILE
: ${OUTFLAG='-o '}
AC_SUBST(OUTFLAG)
RUBY_MINGW32
AC_CHECK_TOOL(RANLIB, ranlib, :)
AC_CHECK_TOOL(AR, ar)
if test -z "$AR"; then
AC_CHECK_PROGS(AR, aal, ar)
fi
AC_CHECK_TOOL(AS, as)
ASFLAGS=$ASFLAGS
AC_SUBST(ASFLAGS)
case "$target_os" in
cygwin*|mingw*)
AC_CHECK_TOOL(NM, nm)
AC_CHECK_TOOL(WINDRES, windres)
AC_CHECK_TOOL(DLLWRAP, dllwrap)
target_cpu=`echo $target_cpu | sed s/i.86/i386/`
case "$target_os" in
mingw*)
test "$rb_cv_msvcrt" = "" && unset rb_cv_msvcrt
AC_CHECK_TOOL(OBJDUMP, objdump)
AC_CACHE_CHECK(for mingw32 runtime DLL, rb_cv_msvcrt, [
AC_TRY_LINK([#include <stdio.h>],
[FILE* volatile f = stdin; return 0;],
[rb_cv_msvcrt=`$OBJDUMP -p conftest$ac_exeext |
tr A-Z a-z |
sed -n '/^[[ ]]*dll name: \(msvc.*\)\.dll$/{s//\1/p;q;}'`],
[rb_cv_msvcrt=msvcrt])
test "$rb_cv_msvcrt" = "" && rb_cv_msvcrt=msvcrt])
esac
: ${enable_shared=yes}
;;
aix*)
AC_CHECK_TOOL(NM, nm, /usr/ccs/bin/nm, /usr/ccs/bin:$PATH)
;;
hiuxmpp*)
# by TOYODA Eizi <[email protected]>
AC_DEFINE(__HIUX_MPP__)
;;
esac
AC_PROG_LN_S
AC_PROG_MAKE_SET
AC_PROG_INSTALL
# checks for UNIX variants that set C preprocessor variables
AC_AIX
AC_MINIX
AC_SUBST(RM, ['rm -f'])
AC_SUBST(CP, ['cp'])
if $as_mkdir_p; then
AC_SUBST(MAKEDIRS, ['mkdir -p'])
else
AC_SUBST(MAKEDIRS, ['install -d'])
fi
dnl check for large file stuff
AC_SYS_LARGEFILE
case "$target_os" in
mingw*)
ac_cv_type_off_t=yes
ac_cv_sizeof_off_t=8
;;
esac
AC_CHECK_TYPES([long long, off_t])
AC_CHECK_SIZEOF(int, 4)
AC_CHECK_SIZEOF(short, 2)
AC_CHECK_SIZEOF(long, 4)
AC_CHECK_SIZEOF(long long, 0)
AC_CHECK_SIZEOF(__int64, 0)
AC_CHECK_SIZEOF(off_t, 0)
AC_CHECK_SIZEOF(void*, 4)
AC_CHECK_SIZEOF(float, 4)
AC_CHECK_SIZEOF(double, 8)
AC_CHECK_SIZEOF(time_t, 0)
for id in pid_t gid_t uid_t; do
AC_CHECK_TYPE($id, [typ=$id], [typ=int])
AC_DEFINE_UNQUOTED(rb_$id, $typ)
done
AC_CACHE_CHECK(for prototypes, rb_cv_have_prototypes,
[AC_TRY_COMPILE([int foo(int x) { return 0; }], [return foo(10);],
rb_cv_have_prototypes=yes,
rb_cv_have_prototypes=no)])
if test "$rb_cv_have_prototypes" = yes; then
AC_DEFINE(HAVE_PROTOTYPES)
fi
AC_CACHE_CHECK(token paste string, rb_cv_tokenpaste,
[AC_TRY_COMPILE([#define paste(a,b) a##b],
[int xy = 1; return paste(x,y);],
rb_cv_tokenpaste=ansi,
rb_cv_tokenpaste=knr)])
if test "$rb_cv_tokenpaste" = ansi; then
AC_DEFINE(TOKEN_PASTE(x,y),[x##y])
else
AC_DEFINE(TOKEN_PASTE(x,y),[x/**/y])
fi
AC_CACHE_CHECK(for variable length prototypes and stdarg.h, rb_cv_stdarg,
[AC_TRY_COMPILE([
#include <stdarg.h>
int foo(int x, ...) {
va_list va;
va_start(va, x);
va_arg(va, int);
va_arg(va, char *);
va_arg(va, double);
return 0;
}
], [return foo(10, "", 3.14);],
rb_cv_stdarg=yes,
rb_cv_stdarg=no)])
if test "$rb_cv_stdarg" = yes; then
AC_DEFINE(HAVE_STDARG_PROTOTYPES)
fi
AC_DEFUN([RUBY_FUNC_ATTRIBUTE], [dnl
m4_ifval([$2], dnl
[AS_VAR_PUSHDEF([attrib],[$2])], dnl
[AS_VAR_PUSHDEF([attrib],[FUNC_]AS_TR_CPP($1))] dnl
)dnl
m4_ifval([$3], dnl
[AS_VAR_PUSHDEF([rbcv],[$3])], dnl
[AS_VAR_PUSHDEF([rbcv],[rb_cv_func_][$1])]dnl
)dnl
AC_CACHE_CHECK(for [$1] function attribute, rbcv,
[rbcv=x
if test "${ac_c_werror_flag+set}"; then
rb_c_werror_flag="$ac_c_werror_flag"
else
unset rb_c_werror_flag
fi
ac_c_werror_flag=yes
for mac in "__attribute__ (($1)) x" "x __attribute__ (($1))" "__declspec($1) x" x; do
AC_TRY_COMPILE(
[#define ]attrib[(x) $mac
]attrib[(void conftest_attribute_check(void));], [],
[rbcv="$mac"; break])
done
if test "${rb_c_werror_flag+set}"; then
ac_c_werror_flag="$rb_c_werror_flag"
else
unset ac_c_werror_flag
fi
])
AC_DEFINE_UNQUOTED(attrib[(x)], $rbcv)
AS_VAR_POPDEF([attrib])
AS_VAR_POPDEF([rbcv])
])
RUBY_FUNC_ATTRIBUTE(noreturn, NORETURN)
RUBY_FUNC_ATTRIBUTE(deprecated, DEPRECATED)
RUBY_FUNC_ATTRIBUTE(noinline, NOINLINE)
RUBY_FUNC_ATTRIBUTE(stdcall)
RUBY_FUNC_ATTRIBUTE(cdecl)
AC_CACHE_CHECK([for RUBY_EXTERN], rb_cv_ruby_extern,
[rb_cv_ruby_extern=no
for mac in "__attribute__((dllimport))" "__declspec(dllimport)"; do
AC_TRY_COMPILE(
[extern $mac void conftest(void);],
[rb_cv_ruby_extern="extern $mac"; break])
done])
test "x$rb_cv_ruby_extern" = xno || AC_DEFINE_UNQUOTED(RUBY_EXTERN, $rb_cv_ruby_extern)
XCFLAGS="$XCFLAGS -DRUBY_EXPORT"
dnl Check whether we need to define sys_nerr locally
AC_CHECK_DECLS([sys_nerr], [], [], [$ac_includes_default
#include <errno.h>])
dnl whether link libc_r or not
AC_ARG_WITH(libc_r,
[ --with-libc_r link libc_r if possible (FreeBSD only)], [
case $withval in
yes) with_libc_r=yes;;
*) with_libc_r=no;;
esac], [with_libc_r=no])
AC_ARG_ENABLE(pthread,
[ --enable-pthread use pthread library.],
[enable_pthread=$enableval], [enable_pthread=no])
dnl Checks for libraries.
case "$target_os" in
nextstep*) ;;
openstep*) ;;
rhapsody*) ;;
darwin*) LIBS="-lobjc $LIBS";;
hpux*) LIBS="-lm $LIBS"
ac_cv_c_inline=no;;
human*) ac_cv_func_getpgrp_void=yes
ac_cv_func_setitimer=no
;;
beos*) ac_cv_func_link=no;;
cygwin*) rb_cv_have_daylight=no
ac_cv_var_tzname=no
ac_cv_func__setjmp=no
ac_cv_func_setitimer=no
;;
mingw*) LIBS="-lshell32 -lws2_32 $LIBS"
ac_cv_header_a_out_h=no
ac_cv_header_pwd_h=no
ac_cv_header_utime_h=no
ac_cv_header_sys_ioctl_h=no
ac_cv_header_sys_param_h=no
ac_cv_header_sys_resource_h=no
ac_cv_header_sys_select_h=no
ac_cv_header_sys_time_h=no
ac_cv_header_sys_times_h=no
ac_cv_func_times=yes
ac_cv_func_waitpid=yes
ac_cv_func_fsync=yes
ac_cv_func_snprintf=yes
ac_cv_func_vsnprintf=yes
ac_cv_func_seekdir=yes
ac_cv_func_telldir=yes
ac_cv_func_isinf=yes
ac_cv_func_isnan=yes
ac_cv_func_finite=yes
ac_cv_func_link=yes
ac_cv_func_truncate=yes
ac_cv_func_fseeko=yes
ac_cv_func_ftello=yes
ac_cv_lib_crypt_crypt=no
ac_cv_func_getpgrp_void=no
ac_cv_func_setpgrp_void=yes
ac_cv_func_memcmp_working=yes
ac_cv_lib_dl_dlopen=no
rb_cv_binary_elf=no
rb_cv_negative_time_t=no
enable_pthread=no
;;
os2-emx*) LIBS="-lm $LIBS"
ac_cv_lib_dir_opendir=no;;
msdosdjgpp*) LIBS="-lm $LIBS"
ac_cv_func_getpgrp_void=yes
ac_cv_func_setitimer=no
ac_cv_sizeof_rlim_t=4
ac_cv_func_fork=no
;;
bsdi*) LIBS="-lm $LIBS"
ac_cv_sizeof_rlim_t=8;;
freebsd*) LIBS="-lm $LIBS"
AC_CACHE_CHECK([whether -lxpg4 has to be linked],
rb_cv_lib_xpg4_needed,
[AC_TRY_CPP([
#include <osreldate.h>
#if __FreeBSD_version < 400020 || \
(__FreeBSD_version >= 500000 && __FreeBSD_version < 500005)
#error needs libxpg4
#endif
],
rb_cv_lib_xpg4_needed=no,
rb_cv_lib_xpg4_needed=yes,
rb_cv_lib_xpg4_needed=yes)])
if test "$rb_cv_lib_xpg4_needed" = yes; then
AC_CHECK_LIB(xpg4, setlocale)
fi
if test "$with_libc_r" = yes; then
AC_CACHE_CHECK([whether libc_r is supplementary to libc],
rb_cv_supplementary_lib_c_r,
[AC_TRY_CPP([
#include <osreldate.h>
#if 500016 <= __FreeBSD_version
#error libc_r is supplementary to libc
#endif
],
rb_cv_supplementary_lib_c_r=no,
rb_cv_supplementary_lib_c_r=yes,
rb_cv_supplementary_lib_c_r=yes)])
if test "$rb_cv_supplementary_lib_c_r" = yes; then
MAINLIBS="-lc_r $MAINLIBS"
fi
fi
;;
dragonfly*) LIBS="-lm $LIBS"
;;
bow) ac_cv_func_setitimer=no
;;
superux*) ac_cv_func_setitimer=no
;;
solaris*2.10) if test -z "$GCC"; then
ac_cv_func_isinf=yes
fi
LIBS="-lm $LIBS"
;;
*) LIBS="-lm $LIBS";;
esac
AC_CHECK_LIB(crypt, crypt)
AC_CHECK_LIB(dl, dlopen) # Dynamic linking for SunOS/Solaris and SYSV
AC_CHECK_LIB(dld, shl_load) # Dynamic linking for HP-UX
AC_CHECK_LIB(socket, socketpair) # SunOS/Solaris
case "$target_cpu" in
alpha*) case "$target_os"::"$GCC" in
*::yes) CFLAGS="-mieee $CFLAGS" ;; # gcc
osf*) CFLAGS="-ieee $CFLAGS" ;; # ccc
esac ;;
esac
dnl Checks for header files.
AC_HEADER_DIRENT
AC_HEADER_STDC
AC_HEADER_SYS_WAIT
AC_CHECK_HEADERS(stdlib.h string.h unistd.h limits.h sys/file.h sys/ioctl.h sys/syscall.h\
fcntl.h sys/fcntl.h sys/select.h sys/time.h sys/times.h sys/param.h\
syscall.h pwd.h grp.h a.out.h utime.h memory.h direct.h sys/resource.h \
sys/mkdev.h sys/utime.h netinet/in_systm.h float.h ieeefp.h pthread.h \
ucontext.h intrinsics.h)
dnl Check additional types.
AC_CHECK_SIZEOF(rlim_t, 0, [
#ifdef HAVE_SYS_TYPES_H
# include <sys/types.h>
#endif
#ifdef HAVE_SYS_TIME_H
# include <sys/time.h>
#endif
#ifdef HAVE_SYS_RESOURCE_H
# include <sys/resource.h>
#endif
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
#include <stdio.h>
])
dnl Checks for typedefs, structures, and compiler characteristics.
AC_TYPE_SIZE_T
AC_STRUCT_ST_BLKSIZE
AC_STRUCT_ST_BLOCKS
AC_STRUCT_ST_RDEV
AC_CHECK_TYPE(fd_mask, [AC_DEFINE(HAVE_RB_FD_INIT, 1)])
AC_CACHE_CHECK(for stack end address, rb_cv_stack_end_address,
[rb_cv_stack_end_address=no
for addr in __libc_stack_end _SEND; do
AC_TRY_LINK(
[extern void *$addr;],
[if (!$addr) return 1;],
[rb_cv_stack_end_address="$addr"; break])
done])
if test $rb_cv_stack_end_address != no; then
AC_DEFINE_UNQUOTED(STACK_END_ADDRESS, $rb_cv_stack_end_address)
fi
dnl Checks for library functions.
AC_TYPE_GETGROUPS
AC_TYPE_SIGNAL
AC_FUNC_ALLOCA
AC_FUNC_MEMCMP
AC_REPLACE_FUNCS(dup2 memmove strcasecmp strncasecmp strerror strftime\
strchr strstr strtoul crypt flock\
isnan finite isinf hypot acosh erf)
AC_CHECK_FUNCS(fmod killpg wait4 waitpid fork spawnv syscall chroot fsync getcwd eaccess\
truncate chsize times utimes fcntl lockf lstat link symlink readlink\
setitimer setruid seteuid setreuid setresuid setproctitle socketpair\
setrgid setegid setregid setresgid issetugid pause lchown lchmod\
getpgrp setpgrp getpgid setpgid initgroups getgroups setgroups\
getpriority getrlimit setrlimit sysconf\
dlopen sigprocmask sigaction _setjmp vsnprintf snprintf\
setsid telldir seekdir fchmod mktime timegm cosh sinh tanh log2\
setuid setgid daemon select_large_fdset setenv unsetenv)
AC_ARG_ENABLE(setreuid,
[ --enable-setreuid use setreuid()/setregid() according to need even if obsolete.],
[use_setreuid=$enableval])
if test "$use_setreuid" = yes; then
AC_DEFINE(USE_SETREUID)
AC_DEFINE(USE_SETREGID)
fi
AC_STRUCT_TIMEZONE
AC_CACHE_CHECK(for struct tm.tm_gmtoff, rb_cv_member_struct_tm_tm_gmtoff,
[AC_TRY_COMPILE([#include <time.h>],
[struct tm t; t.tm_gmtoff = 3600;],
[rb_cv_member_struct_tm_tm_gmtoff=yes],
[rb_cv_member_struct_tm_tm_gmtoff=no])])
if test "$rb_cv_member_struct_tm_tm_gmtoff" = yes; then
AC_DEFINE(HAVE_STRUCT_TM_TM_GMTOFF)
fi
AC_CACHE_CHECK(for external int daylight, rb_cv_have_daylight,
[AC_TRY_LINK([#include <time.h>
int i;],
[i = daylight;],
rb_cv_have_daylight=yes,
rb_cv_have_daylight=no)])
if test "$rb_cv_have_daylight" = yes; then
AC_DEFINE(HAVE_DAYLIGHT)
fi
AC_CACHE_CHECK(for negative time_t for gmtime(3), rb_cv_negative_time_t,
[AC_TRY_RUN([
#include <time.h>
void
check(tm, y, m, d, h, s)
struct tm *tm;
int y, m, d, h, s;
{
if (!tm ||
tm->tm_year != y ||
tm->tm_mon != m-1 ||
tm->tm_mday != d ||
tm->tm_hour != h ||
tm->tm_sec != s) {
exit(1);
}
}
int
main()
{
time_t t = -1;
struct tm *tm;
check(gmtime(&t), 69, 12, 31, 23, 59);
t = ~(time_t)0 << 31;
check(gmtime(&t), 1, 12, 13, 20, 52);
return 0;
}
],
rb_cv_negative_time_t=yes,
rb_cv_negative_time_t=no,
rb_cv_negative_time_t=yes)])
if test "$rb_cv_negative_time_t" = yes; then
AC_DEFINE(NEGATIVE_TIME_T)
fi
if test "$ac_cv_func_sigprocmask" = yes && test "$ac_cv_func_sigaction" = yes; then
AC_DEFINE(POSIX_SIGNAL)
else
AC_CACHE_CHECK(for BSD signal semantics, rb_cv_bsd_signal,
[AC_TRY_RUN([
#include <stdio.h>
#include <signal.h>
void
sig_handler(dummy)
int dummy;
{
}
int
main()
{
signal(SIGINT, sig_handler);
kill(getpid(), SIGINT);
kill(getpid(), SIGINT);
return 0;
}
],
rb_cv_bsd_signal=yes,
rb_cv_bsd_signal=no,
rb_cv_bsd_signal=no)])
if test "$rb_cv_bsd_signal" = yes; then
AC_DEFINE(BSD_SIGNAL)
fi
fi
AC_FUNC_GETPGRP
AC_FUNC_SETPGRP
AC_C_BIGENDIAN
AC_C_CONST
AC_C_CHAR_UNSIGNED
AC_C_INLINE
AC_C_VOLATILE
if test x"$target_cpu" = xia64; then
AC_LIBOBJ([ia64])
AC_CACHE_CHECK(for __libc_ia64_register_backing_store_base,
rb_cv___libc_ia64_register_backing_store_base,
[rb_cv___libc_ia64_register_backing_store_base=no
AC_TRY_LINK(
[extern unsigned long __libc_ia64_register_backing_store_base;],
[unsigned long p = __libc_ia64_register_backing_store_base;
printf("%ld\n", p);],
[rb_cv___libc_ia64_register_backing_store_base=yes])])
if test $rb_cv___libc_ia64_register_backing_store_base = yes; then
AC_DEFINE(HAVE___LIBC_IA64_REGISTER_BACKING_STORE_BASE)
fi
fi
AC_CACHE_CHECK(whether right shift preserve sign bit, rb_cv_rshift_sign,
[AC_TRY_RUN([
int
main()
{
if (-1==(-1>>1))
return 0;
return 1;
}
],
rb_cv_rshift_sign=yes,
rb_cv_rshift_sign=no,
rb_cv_rshift_sign=yes)])
if test "$rb_cv_rshift_sign" = yes; then
AC_DEFINE(RSHIFT(x,y), ((x)>>(int)y))
else
AC_DEFINE(RSHIFT(x,y), (((x)<0) ? ~((~(x))>>y) : (x)>>y))
fi
AC_MSG_CHECKING(read count field in FILE structures)
AC_CACHE_VAL(rb_cv_fcnt,
[for fcnt in dnl
_cnt dnl
__cnt dnl
_r dnl
readCount dnl
_rcount dnl for emx0.9c
; do
AC_TRY_COMPILE([#include <stdio.h>
],
[FILE *f = stdin; f->$fcnt = 0;],
rb_cv_fcnt="$fcnt"; break,
rb_cv_fcnt="not found")
done])
if test "$rb_cv_fcnt" = "not found"; then
AC_MSG_RESULT([not found(OK if using GNU libc)])
else
AC_MSG_RESULT($rb_cv_fcnt)
AC_DEFINE_UNQUOTED(FILE_COUNT, $rb_cv_fcnt)
fi
AC_MSG_CHECKING(read buffer ptr field in FILE structures)
AC_CACHE_VAL(rb_cv_frptr,
[for frptr in dnl
_IO_read_ptr dnl
_ptr dnl
__ptr dnl
bufpos dnl
_p dnl
; do
AC_TRY_COMPILE([#include <stdio.h>
],
[FILE *f = stdin; char buf[256]; f->$frptr = buf;],
rb_cv_frptr="$frptr"; break,
rb_cv_frptr="not found")
done])
if test "$rb_cv_frptr" = "not found"; then
AC_MSG_RESULT([not found])
else
AC_MSG_RESULT($rb_cv_frptr)
AC_DEFINE_UNQUOTED(FILE_READPTR, $rb_cv_frptr)
if test "$rb_cv_fcnt" = "not found"; then
AC_MSG_CHECKING(read buffer end field in FILE structures)
AC_CACHE_VAL(rb_cv_frend,
[for frend in dnl
_IO_read_end dnl
bufread dnl
; do
AC_TRY_COMPILE([#include <stdio.h>
],
[FILE *f = stdin; char buf[256]; f->$frend = buf;],
rb_cv_frend="$frend"; break,
rb_cv_frend="not found")
done])
if test "$rb_cv_frend" = "not found"; then
AC_MSG_RESULT([not found])
else
AC_MSG_RESULT($rb_cv_frend)
AC_DEFINE_UNQUOTED(FILE_READEND, $rb_cv_frend)
fi
fi
fi
AC_CACHE_CHECK([whether st_ino is huge], rb_cv_huge_st_ino,
[AC_COMPILE_IFELSE([AC_LANG_BOOL_COMPILE_TRY([
#include <sys/stat.h>
struct stat test_stat;
], [sizeof(test_stat.st_ino)>sizeof(long)])],
rb_cv_huge_st_ino=yes,
rb_cv_huge_st_ino=no)
])
if test $rb_cv_huge_st_ino = yes; then
AC_DEFINE(HUGE_ST_INO)
fi
if test "$ac_cv_func_sysconf" = yes; then
AC_DEFUN([RUBY_CHECK_SYSCONF], [dnl
AC_CACHE_CHECK([whether _SC_$1 is supported], rb_cv_have_sc_[]m4_tolower($1),
[AC_TRY_COMPILE([#include <unistd.h>
],
[_SC_$1 >= 0],
rb_cv_have_sc_[]m4_tolower($1)=yes,
rb_cv_have_sc_[]m4_tolower($1)=no)
])
if test "$rb_cv_have_sc_[]m4_tolower($1)" = yes; then
AC_DEFINE(HAVE__SC_$1)
fi
])
RUBY_CHECK_SYSCONF(CLK_TCK)
fi
case "$target_cpu" in
m68*|i?86|ia64|sparc*|alpha*) rb_cv_stack_grow_dir=-1;;
hppa*) rb_cv_stack_grow_dir=+1;;
esac
AC_CACHE_CHECK(stack growing direction, rb_cv_stack_grow_dir,
[AC_TRY_RUN([
/* recurse to get rid of inlining */
static int
stack_growup_p(addr, n)
volatile int *addr, n;
{
volatile int end;
if (n > 0)
return *addr = stack_growup_p(addr, n - 1);
else
return (&end > addr);
}
int main()
{
int x;
return stack_growup_p(&x, 10);
}
], rb_cv_stack_grow_dir=-1, rb_cv_stack_grow_dir=+1, rb_cv_stack_grow_dir=0)])
AC_DEFINE_UNQUOTED(STACK_GROW_DIRECTION, $rb_cv_stack_grow_dir)
if test x"$enable_pthread" = xyes; then
for pthread_lib in pthread pthreads c c_r; do
AC_CHECK_LIB($pthread_lib, pthread_kill,
rb_with_pthread=yes, rb_with_pthread=no)
if test "$rb_with_pthread" = "yes"; then break; fi
done
if test x"$rb_with_pthread" = xyes; then
AC_DEFINE(_REENTRANT)
AC_DEFINE(_THREAD_SAFE)
AC_DEFINE(HAVE_LIBPTHREAD)
case $pthread_lib in
c)
;;
c_r)
MAINLIBS="-pthread $MAINLIBS"
;;
*)
LIBS="-l$pthread_lib $LIBS"
;;
esac
else
AC_MSG_WARN("Don't know how to find pthread library on your system -- thread support disabled")
fi
AC_CHECK_FUNCS(nanosleep)
if test x"$ac_cv_func_nanosleep" = xno; then
AC_CHECK_LIB(rt, nanosleep)
if test x"$ac_cv_lib_rt_nanosleep" = xyes; then
AC_DEFINE(HAVE_NANOSLEEP)
fi
fi
fi
if test x"$ac_cv_header_ucontext_h" = xyes; then
if test x"$rb_with_pthread" = xyes; then
AC_CHECK_FUNCS(getcontext setcontext)
fi
fi
dnl default value for $KANJI
DEFAULT_KCODE="KCODE_NONE"
AC_ARG_WITH(default-kcode,
[ --with-default-kcode=CODE specify default value for \$KCODE (utf8|euc|sjis|none)],
[case $withval in
utf8) DEFAULT_KCODE="KCODE_UTF8";;
euc) DEFAULT_KCODE="KCODE_EUC";;
sjis) DEFAULT_KCODE="KCODE_SJIS";;
none) DEFAULT_KCODE="KCODE_NONE";;
*) AC_MSG_WARN($withval is not valid kcode; ignored);;
esac])
AC_DEFINE_UNQUOTED(DEFAULT_KCODE, $DEFAULT_KCODE)
dnl wheather use dln_a_out or not
AC_ARG_WITH(dln-a-out,
[ --with-dln-a-out use dln_a_out if possible], [
case $withval in
yes) with_dln_a_out=yes;;
*) with_dln_a_out=no;;
esac], [with_dln_a_out=no])
AC_CACHE_CHECK(whether ELF binaries are produced, rb_cv_binary_elf,
[AC_TRY_RUN([
/* Test for whether ELF binaries are produced */
#include <fcntl.h>
#include <stdlib.h>
main() {
char buffer[4];
int i=open("conftest",O_RDONLY);
if(i==-1)
exit(1); /* fail */
if(read(i,&buffer[0],4)<4)
exit(1); /* fail */
if(buffer[0] != 127 || buffer[1] != 'E' ||
buffer[2] != 'L' || buffer[3] != 'F')
exit(1); /* fail */
exit(0); /* succeed (yes, it's ELF) */
}
],
rb_cv_binary_elf=yes,
rb_cv_binary_elf=no,
rb_cv_binary_elf=yes)])
if test "$rb_cv_binary_elf" = yes; then
AC_DEFINE(USE_ELF)
fi
case "$target_os" in
linux* | gnu* | k*bsd*-gnu | bsdi*)
if test "$rb_cv_binary_elf" = no; then
with_dln_a_out=yes
else
LDFLAGS="$LDFLAGS -rdynamic"
fi;;
esac
LIBEXT=a
AC_SUBST(DLDFLAGS)dnl
AC_SUBST(ARCH_FLAG)dnl
AC_SUBST(STATIC)dnl
AC_SUBST(CCDLFLAGS)dnl
AC_SUBST(LDSHARED)dnl
AC_SUBST(LDSHAREDXX)dnl
AC_SUBST(DLEXT)dnl
AC_SUBST(DLEXT2)dnl
AC_SUBST(LIBEXT)dnl
STATIC=
: ${LIBPATHFLAG=' -L"%s"'}
: ${PATHFLAG=''}
if test "$with_dln_a_out" != yes; then
rb_cv_dlopen=unknown
AC_MSG_CHECKING(whether OS depend dynamic link works)
if test "$GCC" = yes; then
case "$target_os" in
nextstep*) CCDLFLAGS="$CCDLFLAGS -fno-common";;
openstep*) CCDLFLAGS="$CCDLFLAGS -fno-common";;
rhapsody*) CCDLFLAGS="$CCDLFLAGS -fno-common";;
darwin*) CCDLFLAGS="$CCDLFLAGS -fno-common";;
human*|bsdi*|beos*|cygwin*|mingw*|aix*|interix*) ;;
*) CCDLFLAGS="$CCDLFLAGS -fPIC";;
esac
else
case "$target_os" in
hpux*) CCDLFLAGS="$CCDLFLAGS +Z";;
solaris*|irix*) CCDLFLAGS="$CCDLFLAGS -KPIC" ;;
sunos*) CCDLFLAGS="$CCDLFLAGS -PIC" ;;
esix*|uxpds*) CCDLFLAGS="$CCDLFLAGS -KPIC" ;;
*) : ${CCDLFLAGS=""} ;;
esac
fi
case "$target_os" in
hpux*) DLDFLAGS="$DLDFLAGS -E"
: ${LDSHARED='ld -b'}
XLDFLAGS="$XLDFLAGS -Wl,-E"
: ${LIBPATHENV=SHLIB_PATH}
rb_cv_dlopen=yes;;
solaris*) if test "$GCC" = yes; then
: ${LDSHARED='$(CC) -shared'}
if test "$rb_cv_prog_gnu_ld" = yes; then
LDFLAGS="$LDFLAGS -Wl,-E"
fi
else
: ${LDSHARED='ld -G'}
fi
rb_cv_dlopen=yes;;
sunos*) : ${LDSHARED='ld -assert nodefinitions'}
rb_cv_dlopen=yes;;
irix*) : ${LDSHARED='ld -shared'}
rb_cv_dlopen=yes;;
sysv4*) : ${LDSHARED='ld -G'}
rb_cv_dlopen=yes;;
nto-qnx*) : ${LDSHARED="qcc -shared"}
rb_cv_dlopen=yes ;;
esix*|uxpds*) : ${LDSHARED="ld -G"}
rb_cv_dlopen=yes ;;
osf*) : ${LDSHARED="ld -shared -expect_unresolved \"*\""}
rb_cv_dlopen=yes ;;
bsdi3*) case "$CC" in
*shlicc*) : ${LDSHARED="$CC -r"}
rb_cv_dlopen=yes ;;
esac ;;
linux* | gnu* | k*bsd*-gnu | netbsd* | bsdi*)
: ${LDSHARED='${CC} -shared'}
if test "$rb_cv_binary_elf" = yes; then
LDFLAGS="$LDFLAGS -Wl,-export-dynamic"
fi
rb_cv_dlopen=yes ;;
interix*) : ${LDSHARED="$CC -shared"}
XLDFLAGS="$XLDFLAGS -Wl,-E"
LIBPATHFLAG=" -L'%1\$-s'"
rb_cv_dlopen=yes ;;
freebsd*|dragonfly*) : ${LDSHARED="$CC -shared"}
if test "$rb_cv_binary_elf" = yes; then
LDFLAGS="$LDFLAGS -rdynamic"
DLDFLAGS="$DLDFLAGS "'-Wl,-soname,$(.TARGET)'
else
test "$GCC" = yes && test "$rb_cv_prog_gnu_ld" = yes || LDSHARED="ld -Bshareable"
fi
rb_cv_dlopen=yes ;;
openbsd*) : ${LDSHARED="\$(CC) -shared ${CCDLFLAGS}"}
if test "$rb_cv_binary_elf" = yes; then
LDFLAGS="$LDFLAGS -Wl,-E"
fi
rb_cv_dlopen=yes ;;
nextstep*) : ${LDSHARED='cc -r -nostdlib'}
LDFLAGS="$LDFLAGS -u libsys_s"
rb_cv_dlopen=yes ;;
openstep*) : ${LDSHARED='cc -dynamic -bundle -undefined suppress'}
: ${LDFLAGS=""}
rb_cv_dlopen=yes ;;
rhapsody*) : ${LDSHARED='cc -dynamic -bundle -undefined suppress'}
: ${LDFLAGS=""}
rb_cv_dlopen=yes ;;
darwin*) : ${LDSHARED='cc -dynamic -bundle -undefined suppress -flat_namespace'}
: ${LDFLAGS=""}
: ${LIBPATHENV=DYLD_LIBRARY_PATH}
rb_cv_dlopen=yes ;;
aix*) if test "$GCC" = yes; then
: ${LDSHARED='gcc -shared'}
DLDFLAGS='-Wl,-G -eInit_$(TARGET)'
LDFLAGS='-Wl,-brtl -Wl,-bE:ruby.imp'
else
: ${LDSHARED='/usr/ccs/bin/ld'}
DLDFLAGS='-G -eInit_$(TARGET)'
LDFLAGS="-brtl -bE:ruby.imp"
fi
: ${ARCHFILE="ruby.imp"}
TRY_LINK='$(CC) $(LDFLAGS) -oconftest $(INCFLAGS) -I$(hdrdir) $(CPPFLAGS)'
TRY_LINK="$TRY_LINK"' $(CFLAGS) $(src) $(LIBPATH) $(LOCAL_LIBS) $(LIBS)'
: ${LIBPATHENV=SHLIB_PATH}
rb_cv_dlopen=yes ;;
human*) : ${DLDFLAGS=''}