# $Id: Head.U,v 3.0.1.9 1997/02/28 15:02:09 ram Exp $
#
-# Generated on Tue Oct 31 16:26:33 EET 2000 [metaconfig 3.0 PL70]
+# Generated on Thu Nov 16 16:33:41 EET 2000 [metaconfig 3.0 PL70]
# (with additional metaconfig patches by perlbug@perl.org)
cat >/tmp/c1$$ <<EOF
cpprun=''
cppstdin=''
crosscompile=''
+d__fwalk=''
d_access=''
d_accessx=''
d_alarm=''
d_fchmod=''
d_fchown=''
d_fcntl=''
+d_fcntl_can_lock=''
d_fd_macros=''
d_fd_set=''
d_fds_bits=''
d_fseeko=''
d_fsetpos=''
d_fstatfs=''
+d_fsync=''
d_ftello=''
d_ftime=''
d_gettimeod=''
d_getnbyname=''
d_getnent=''
d_getnetprotos=''
+d_getpagsz=''
d_getpent=''
d_getpgid=''
d_getpgrp2=''
d_safebcpy=''
d_safemcpy=''
d_sanemcmp=''
+d_sbrkproto=''
d_select=''
d_sem=''
d_semctl=''
rp="I see a config.sh file. Shall I use it to set the defaults?"
. UU/myread
case "$ans" in
- n*|N*) echo "OK, I'll ignore it."; mv config.sh config.sh.old;;
+ n*|N*) echo "OK, I'll ignore it."
+ mv config.sh config.sh.old
+ myuname="$newmyuname"
+ ;;
*) echo "Fetching default answers from your old config.sh file..." >&4
tmp_n="$n"
tmp_c="$c"
esac
;;
next*) osname=next ;;
- NonStop-UX) osname=nonstopux ;;
+ nonstop-ux) osname=nonstopux ;;
POSIX-BC | posix-bc ) osname=posix-bc
osvers="$3"
;;
;;
esac
test "$override" && . ./optdef.sh
-myuname="$newmyuname"
: Restore computed paths
for file in $loclist $trylist; do
. ./myread
perladmin="$ans"
+: determine whether to only install version-specific parts.
+echo " "
+$cat <<EOM
+Do you want to install only the version-specific parts of the perl
+distribution? Usually you do *not* want to do this.
+EOM
+case "$versiononly" in
+"$define"|[Yy]*|true) dflt='y' ;;
+*) dflt='n';
+esac
+rp="Do you want to install only the version-specific parts of perl?"
+. ./myread
+case "$ans" in
+[yY]*) val="$define";;
+*) val="$undef" ;;
+esac
+set versiononly
+eval $setvar
+
: figure out how to guarantee perl startup
case "$startperl" in
'')
a shell by starting the script with a single ':' character.
EOH
- dflt="$binexp/perl"
+ case "$versiononly" in
+ "$define") dflt="$binexp/perl$version";;
+ *) dflt="$binexp/perl";;
+ esac
rp='What shall I put after the #! to start up perl ("none" to not use #!)?'
. ./myread
case "$ans" in
installvendorbin="$vendorbinexp"
fi
-: determine whether to only install version-specific parts.
-echo " "
-$cat <<EOM
-Do you want to install only the version-specific parts of the perl
-distribution? Usually you do *not* want to do this.
-EOM
-case "$versiononly" in
-"$define"|[Yy]*|true) dflt='y' ;;
-*) dflt='n';
-esac
-rp="Do you want to install only the version-specific parts of perl?"
-. ./myread
-case "$ans" in
-[yY]*) val="$define";;
-*) val="$undef" ;;
-esac
-set versiononly
-eval $setvar
-
: see if qgcvt exists
set qgcvt d_qgcvt
eval $inlibc
;;
esac
+: see if _fwalk exists
+set fwalk d__fwalk
+eval $inlibc
+
: Initialize h_fcntl
h_fcntl=false
set fcntl d_fcntl
eval $inlibc
+echo " "
+: See if fcntl-based locking works.
+$cat >try.c <<'EOCP'
+#include <stdlib.h>
+#include <unistd.h>
+#include <fcntl.h>
+int main() {
+#if defined(F_SETLK) && defined(F_SETLKW)
+ struct flock flock;
+ int retval, fd;
+ fd = open("try.c", O_RDONLY);
+ flock.l_type = F_RDLCK;
+ flock.l_whence = SEEK_SET;
+ flock.l_start = flock.l_len = 0;
+ retval = fcntl(fd, F_SETLK, &flock);
+ close(fd);
+ (retval < 0 ? exit(2) : exit(0));
+#else
+ exit(2);
+#endif
+}
+EOCP
+echo "Checking if fcntl-based file locking works... "
+case "$d_fcntl" in
+"$define")
+ set try
+ if eval $compile_ok; then
+ if ./try; then
+ echo "Yes, it seems to work."
+ val="$define"
+ else
+ echo "Nope, it didn't work."
+ val="$undef"
+ fi
+ else
+ echo "I'm unable to compile the test program, so I'll assume not."
+ val="$undef"
+ fi
+ ;;
+*) val="$undef";
+ echo "Nope, since you don't even have fcntl()."
+ ;;
+esac
+set d_fcntl_can_lock
+eval $setvar
+$rm -f try*
+
+
hasfield='varname=$1; struct=$2; field=$3; shift; shift; shift;
while $test $# -ge 2; do
case "$1" in
eval $inlibc
+: see if fsync exists
+set fsync d_fsync
+eval $inlibc
+
: see if ftello exists
set ftello d_ftello
eval $inlibc
set d_getnetprotos getnetent $i_netdb netdb.h
eval $hasproto
+: see if getpagesize exists
+set getpagesize d_getpagsz
+eval $inlibc
+
: see if getprotobyname exists
set getprotobyname d_getpbyname
charsize="$ans"
$rm -f try.c try
+: check for volatile keyword
+echo " "
+echo 'Checking to see if your C compiler knows about "volatile"...' >&4
+$cat >try.c <<'EOCP'
+int main()
+{
+ typedef struct _goo_struct goo_struct;
+ goo_struct * volatile goo = ((goo_struct *)0);
+ struct _goo_struct {
+ long long_int;
+ int reg_int;
+ char char_var;
+ };
+ typedef unsigned short foo_t;
+ char *volatile foo;
+ volatile int bar;
+ volatile foo_t blech;
+ foo = foo;
+}
+EOCP
+if $cc -c $ccflags try.c >/dev/null 2>&1 ; then
+ val="$define"
+ echo "Yup, it does."
+else
+ val="$undef"
+ echo "Nope, it doesn't."
+fi
+set d_volatile
+eval $setvar
+$rm -f try.*
+
echo " "
$echo "Choosing the C types to be used for Perl's internal types..." >&4
;;
esac
-$echo "Checking whether your NVs can preserve your UVs..." >&4
+$echo "Checking how many bits of your UVs your NVs can preserve..." >&4
+: volatile so that the compiler has to store it out to memory.
+if test X"$d_volatile" = X"$define"; then
+ volatile=volatile
+fi
$cat <<EOP >try.c
#include <stdio.h>
-int main() {
- $uvtype k = ($uvtype)~0, l;
- $nvtype d;
- l = k;
- d = ($nvtype)l;
- l = ($uvtype)d;
- if (l == k)
- printf("preserve\n");
- exit(0);
-}
-EOP
-set try
-if eval $compile; then
- case "`./try$exe_ext`" in
- preserve) d_nv_preserves_uv="$define" ;;
- esac
-fi
-case "$d_nv_preserves_uv" in
-$define) $echo "Yes, they can." 2>&1 ;;
-*) $echo "No, they can't." 2>&1
- d_nv_preserves_uv="$undef"
- ;;
-esac
-
-$rm -f try.* try
-
-case "$d_nv_preserves_uv" in
-"$define") d_nv_preserves_uv_bits=`expr $uvsize \* 8` ;;
-*) $echo "Checking how many bits of your UVs your NVs can preserve..." >&4
- $cat <<EOP >try.c
-#include <stdio.h>
+#include <sys/types.h>
+#include <signal.h>
+#ifdef SIGFPE
+$volatile int bletched = 0;
+$signal_t blech(s) int s; { bletched = 1; }
+#endif
int main() {
$uvtype u = 0;
+ $nvtype d;
int n = 8 * $uvsize;
int i;
+#ifdef SIGFPE
+ signal(SIGFPE, blech);
+#endif
+
for (i = 0; i < n; i++) {
u = u << 1 | ($uvtype)1;
- if (($uvtype)($nvtype)u != u)
+ d = ($nvtype)u;
+ if (($uvtype)d != u)
+ break;
+ if (d <= 0)
+ break;
+ d = ($nvtype)(u - 1);
+ if (($uvtype)d != (u - 1))
break;
+#ifdef SIGFPE
+ if (bletched) {
+ break;
+#endif
+ }
}
- printf("%d\n", i);
+ printf("%d\n", ((i == n) ? -n : i));
exit(0);
}
EOP
- set try
- if eval $compile; then
- d_nv_preserves_uv_bits="`./try$exe_ext`"
- fi
- case "$d_nv_preserves_uv_bits" in
- [1-9]*) $echo "Your NVs can preserve $d_nv_preserves_uv_bits bits of your UVs." 2>&1 ;;
- *) $echo "Can't figure out how many bits your NVs preserve." 2>&1
- d_nv_preserves_uv_bits="$undef"
- ;;
- esac
- $rm -f try.* try
+set try
+
+d_nv_preserves_uv="$undef"
+if eval $compile; then
+ d_nv_preserves_uv_bits="`./try$exe_ext`"
+fi
+case "$d_nv_preserves_uv_bits" in
+\-[1-9]*)
+ d_nv_preserves_uv_bits=`expr 0 - $d_nv_preserves_uv_bits`
+ $echo "Your NVs can preserve all $d_nv_preserves_uv_bits bits of your UVs." 2>&1
+ d_nv_preserves_uv="$define"
;;
+[1-9]*) $echo "Your NVs can preserve only $d_nv_preserves_uv_bits bits of your UVs." 2>&1
+ d_nv_preserves_uv="$undef" ;;
+*) $echo "Can't figure out how many bits your NVs preserve." 2>&1
+ d_nv_preserves_uv_bits="$undef" ;;
esac
+$rm -f try.* try
+
: check for off64_t
echo " "
set d_sanemcmp
eval $setvar
+: see if prototype for sbrk is available
+echo " "
+set d_sbrkproto sbrk $i_unistd unistd.h
+eval $hasproto
+
: see if select exists
set select d_select
eval $inlibc
: see if _ptr and _cnt from stdio act std
echo " "
-if $contains '_IO_fpos_t' `./findhdr stdio.h` `./findhdr libio.h` >/dev/null 2>&1 ; then
+
+if $contains '_lbfsize' `./findhdr stdio.h` >/dev/null 2>&1 ; then
+ echo "(Looks like you have stdio.h from BSD.)"
+ case "$stdio_ptr" in
+ '') stdio_ptr='((fp)->_p)'
+ ptr_lval=$define
+ ;;
+ *) ptr_lval=$d_stdio_ptr_lval;;
+ esac
+ case "$stdio_cnt" in
+ '') stdio_cnt='((fp)->_r)'
+ cnt_lval=$define
+ ;;
+ *) cnt_lval=$d_stdio_cnt_lval;;
+ esac
+ case "$stdio_base" in
+ '') stdio_base='((fp)->_ub._base ? (fp)->_ub._base : (fp)->_bf._base)';;
+ esac
+ case "$stdio_bufsiz" in
+ '') stdio_bufsiz='((fp)->_ub._base ? (fp)->_ub._size : (fp)->_bf._size)';;
+ esac
+elif $contains '_IO_fpos_t' `./findhdr stdio.h` `./findhdr libio.h` >/dev/null 2>&1 ; then
echo "(Looks like you have stdio.h from Linux.)"
case "$stdio_ptr" in
'') stdio_ptr='((fp)->_IO_read_ptr)'
'') stdio_bufsiz='((fp)->_cnt + (fp)->_ptr - (fp)->_base)';;
esac
fi
+
: test whether _ptr and _cnt really work
echo "Checking how std your stdio is..." >&4
$cat >try.c <<EOP
#include <stdio.h>
/* Can we scream? */
/* Eat dust sed :-) */
+/* In the buffer space, no one can hear you scream. */
#define FILE_ptr(fp) $stdio_ptr
#define FILE_cnt(fp) $stdio_cnt
+#include <sys/types.h>
int main() {
FILE *fp = fopen("try.c", "r");
- char c = getc(fp);
+ int c;
char *ptr;
size_t cnt;
+ if (!fp) {
+ puts("Fail even to read");
+ exit(1);
+ }
+ c = getc(fp); /* Read away the first # */
+ if (c == EOF) {
+ puts("Fail even to read");
+ exit(1);
+ }
if (!(
18 <= FILE_cnt(fp) &&
strncmp(FILE_ptr(fp), "include <stdio.h>\n", 18) == 0
puts("Fail even to read");
exit (1);
}
- ptr = FILE_ptr(fp);
- cnt = FILE_cnt(fp);
+ ptr = (char*) FILE_ptr(fp);
+ cnt = (size_t)FILE_cnt(fp);
- FILE_ptr(fp)+= 42;
+ FILE_ptr(fp) += 42;
- if (FILE_ptr(fp) != (ptr + 42)) {
+ if ((char*)FILE_ptr(fp) != (ptr + 42)) {
printf("Fail ptr check %p != %p", FILE_ptr(fp), (ptr + 42));
exit (1);
}
set d_void_closedir
eval $setvar
$rm -f closedir*
-: check for volatile keyword
-echo " "
-echo 'Checking to see if your C compiler knows about "volatile"...' >&4
-$cat >try.c <<'EOCP'
-int main()
-{
- typedef struct _goo_struct goo_struct;
- goo_struct * volatile goo = ((goo_struct *)0);
- struct _goo_struct {
- long long_int;
- int reg_int;
- char char_var;
- };
- typedef unsigned short foo_t;
- char *volatile foo;
- volatile int bar;
- volatile foo_t blech;
- foo = foo;
-}
-EOCP
-if $cc -c $ccflags try.c >/dev/null 2>&1 ; then
- val="$define"
- echo "Yup, it does."
-else
- val="$undef"
- echo "Nope, it doesn't."
-fi
-set d_volatile
-eval $setvar
-$rm -f try.*
-
: see if there is a wait4
set wait4 d_wait4
eval $inlibc
set d_socklen_t
eval $setvar
+: see if this is a socks.h system
+set socks.h i_socks
+eval $inhdr
+
: check for type of the size argument to socket calls
case "$d_socket" in
"$define")
Checking to see what type is the last argument of accept().
EOM
- hdrs="$define sys/types.h $d_socket sys/socket.h"
yyy=''
case "$d_socklen_t" in
"$define") yyy="$yyy socklen_t"
for xxx in $yyy; do
case "$socksizetype" in
'') try="extern int accept(int, struct sockaddr *, $xxx *);"
- if ./protochk "$try" $hdrs; then
- echo "Your system accepts '$xxx *' for the last argument of accept()."
- socksizetype="$xxx"
- fi
+ case "$usesocks" in
+ "$define")
+ if ./protochk "$try" $i_systypes sys/types.h $d_socket sys/socket.h literal '#define INCLUDE_PROTOTYPES' $i_socks socks.h.; then
+ echo "Your system accepts '$xxx *' for the last argument of accept()."
+ socksizetype="$xxx"
+ fi
+ ;;
+ *) if ./protochk "$try" $i_systypes sys/types.h $d_socket sys/socket.h; then
+ echo "Your system accepts '$xxx *' for the last argument of accept()."
+ socksizetype="$xxx"
+ fi
+ ;;
+ esac
;;
esac
done
set shadow.h i_shadow
eval $inhdr
-: see if this is a socks.h system
-set socks.h i_socks
-eval $inhdr
-
: see if stdarg is available
echo " "
if $test `./findhdr stdarg.h`; then
d_PRIu64='$d_PRIu64'
d_PRIx64='$d_PRIx64'
d_SCNfldbl='$d_SCNfldbl'
+d__fwalk='$d__fwalk'
d_access='$d_access'
d_accessx='$d_accessx'
d_alarm='$d_alarm'
d_fchmod='$d_fchmod'
d_fchown='$d_fchown'
d_fcntl='$d_fcntl'
+d_fcntl_can_lock='$d_fcntl_can_lock'
d_fd_macros='$d_fd_macros'
d_fd_set='$d_fd_set'
d_fds_bits='$d_fds_bits'
d_fsetpos='$d_fsetpos'
d_fstatfs='$d_fstatfs'
d_fstatvfs='$d_fstatvfs'
+d_fsync='$d_fsync'
d_ftello='$d_ftello'
d_ftime='$d_ftime'
d_getcwd='$d_getcwd'
d_getnbyname='$d_getnbyname'
d_getnent='$d_getnent'
d_getnetprotos='$d_getnetprotos'
+d_getpagsz='$d_getpagsz'
d_getpbyname='$d_getpbyname'
d_getpbynumber='$d_getpbynumber'
d_getpent='$d_getpent'
d_safebcpy='$d_safebcpy'
d_safemcpy='$d_safemcpy'
d_sanemcmp='$d_sanemcmp'
+d_sbrkproto='$d_sbrkproto'
d_sched_yield='$d_sched_yield'
d_scm_rights='$d_scm_rights'
d_seekdir='$d_seekdir'
projects / p5sagit/p5-mst-13.2.git / blobdiff