Hello All,
I have run into severe cross-compilation issues with screen 4.2.1 as
well. It's simply not possible out of the box since the configure script
will always try to execute some (cross-)compiled test programs which
will fail if host and target systems are not compatible. Because I
really wanted to use screen on my arm board (yes, it's a Raspberry Pi )
I have patched the configuration to make cross-compiling possible. Your
mileage may vary and I'm sure there are nicer ways to do it, but I
managed to get a fully functional cross-compiled screen application
running on my Pi. I have decided to post my efforts here so that others
can use it as well.
The patch is attached to this mail. In case it's not working the patch
file can also be retrieved from:
http://www.no-sense.net/~eric/screen.patch
The patch modifies both configure and configure.in but the changes were
made in configure.in only, the configure script was created by running
the included ./autogen.sh script. The user will need to manually supply
the information which was previously retrieved by running test programs.
If the information is not provided configure will still attempt to build
and execute a test program and it will still fail. Thus native builds
are not affected at all by this patch, the behaviour will be exactly as
before.
Here are the commands I used to cross-compile screen for my Raspberry Pi:
patch -Np0 < screen.patch
ac_cv_fifo=yes \
ac_cv_fifobr=no \
ac_cv_sock=yes \
ac_cv_socknofs=no \
ac_cv_select_broken=no \
ac_cv_terminfo=yes \
ac_cv_memmove_handles_overlap=yes \
../configure --host=arm-linux-gnueabihf --with-pty-mode=0620
--with-pty-group=14 <some other options>
Explanation of the new variables:
ac_cv_fifo - whether your target system supports fifo's. Usually yes for
GNU/Linux.
ac_cv_fifobr - whether the fifo implementation is broken or not. Usually
no for GNU/Linux.
ac_cv_sock - whether your target system supports (domain) sockets.
Usually yes for GNU/Linux.
ac_cv_socknofs - whether domain sockets create an entry in the file
system. Yes for GNU/Linux.
ac_cv_select_broken - whether select returns the right value (i.e.
number of fd's). Usually yes.
ac_cv_terminfo - whether to use terminfo or termcap. Check this. if
ncurses installed, say yes.
ac_cv_memmove_handles_overlap - whether memmove can handle overlapping
source and destination. Check this. Yes for recent GNU/Linux.
ac_cv_bcopy_handles_overlap - same as above for bcopy. Only used if
ac_cv_memmove_handles_overlap is set to no.
ac_cv_memcpy_handles_overlap - same as above for memcpy. Only used if
the previous two are set to no.
the --with-pty-mode and -group settings are needed to avoid another test
program to be run. Mode is advised to be set to 0620 and the pty group
is group 14 (tty) on my target system. Please change accordingly
Just in case a screen developer finds this good to include in the screen
repository, I hereby donate the attached patch to the screen developer
team.
Regards,
Eric.
--- configure.in.org 2014-04-26 12:58:35.000000000 +0200
+++ configure.in 2014-09-12 16:26:40.000000000 +0200
@@ -47,31 +47,6 @@
AC_ISC_POSIX
AC_USE_SYSTEM_EXTENSIONS
-AC_TRY_RUN(main(){exit(0);},,[
-if test $CC != cc ; then
-AC_NOTE(Your $CC failed - restarting with CC=cc)
-AC_NOTE()
-CC=cc
-export CC
-exec $0 $configure_args
-fi
-])
-
-AC_TRY_RUN(main(){exit(0);},,
-exec 5>&2
-eval $ac_link
-AC_NOTE(CC=$CC; CFLAGS=$CFLAGS; LIBS=$LIBS;)
-AC_NOTE($ac_compile)
-AC_MSG_ERROR(Can't run the compiler - sorry))
-
-AC_TRY_RUN([
-main()
-{
- int __something_strange_();
- __something_strange_(0);
-}
-],AC_MSG_ERROR(Your compiler does not set the exit status - sorry))
-
AC_PROG_AWK
AC_PROG_INSTALL
@@ -306,7 +281,8 @@
dnl **** FIFO tests ****
dnl
-AC_CHECKING(fifos)
+AC_CACHE_CHECK([fifos], [ac_cv_fifo],
+ [
AC_TRY_RUN([
/* For select - According to POSIX 1003.1-2001 */
#include <sys/select.h>
@@ -371,12 +347,14 @@
exit(1);
exit(0);
}
-], AC_NOTE(- your fifos are usable) fifo=1,
-AC_NOTE(- your fifos are not usable))
+], AC_NOTE(- your fifos are usable) ac_cv_fifo=yes,
+AC_NOTE(- your fifos are not usable) ac_cv_fifo=no )
rm -f /tmp/conftest*
+])
-if test -n "$fifo"; then
-AC_CHECKING(for broken fifo implementation)
+if test x"$ac_cv_fifo" = xyes; then
+AC_CACHE_CHECK([for broken fifo implementation], [ac_cv_fifobr],
+ [
AC_TRY_RUN([
/* For select - According to POSIX 1003.1-2001 */
#include <sys/select.h>
@@ -419,9 +397,14 @@
exit(1);
exit(0);
}
-], AC_NOTE(- your implementation is ok),
-AC_NOTE(- you have a broken implementation) AC_DEFINE(BROKEN_PIPE) fifobr=1)
+], AC_NOTE(- your implementation is ok) ac_cv_fifobr=no,
+AC_NOTE(- you have a broken implementation) ac_cv_fifobr=yes)
rm -f /tmp/conftest*
+])
+fi
+
+if test "x$ac_cv_fifobr" = "xyes" ; then
+ AC_DEFINE(BROKEN_PIPE)
fi
dnl
@@ -430,7 +413,8 @@
dnl may need LIBS="$LIBS -lsocket" here
dnl
-AC_CHECKING(sockets)
+AC_CACHE_CHECK([sockets], [ac_cv_sock],
+ [
AC_TRY_RUN([
/* For select - According to POSIX 1003.1-2001 */
#include <sys/select.h>
@@ -481,12 +465,14 @@
exit(1);
exit(0);
}
-], AC_NOTE(- your sockets are usable) sock=1,
-AC_NOTE(- your sockets are not usable))
+], AC_NOTE(- your sockets are usable) ac_cv_sock=yes,
+AC_NOTE(- your sockets are not usable) ac_cv_sock=no )
rm -f /tmp/conftest*
+ ])
-if test -n "$sock"; then
-AC_CHECKING(socket implementation)
+if test x"$ac_cv_sock" = xyes; then
+AC_CACHE_CHECK([if domain sockets are stored in file system], [ac_cv_socknofs],
+ [
AC_TRY_RUN([
/* For select - According to POSIX 1003.1-2001 */
#include <sys/select.h>
@@ -519,22 +505,26 @@
close(s);
exit(0);
}
-],AC_NOTE(- you are normal),
-AC_NOTE(- unix domain sockets are not kept in the filesystem)
-AC_DEFINE(SOCK_NOT_IN_FS) socknofs=1)
+],AC_NOTE(- you are normal) av_cv_socknofs=no,
+AC_NOTE(- unix domain sockets are not kept in the filesystem) av_cv_socknofs=yes)
rm -f /tmp/conftest*
+ ])
+fi
+
+if test "x$ac_cv_socknofs" = "xyes" ; then
+ AC_DEFINE(SOCK_NOT_IN_FS)
fi
dnl
dnl **** choose sockets or fifos ****
dnl
-if test -n "$fifo"; then
- if test -n "$sock"; then
+if test x"$ac_cv_fifo" = xyes; then
+ if test x"$ac_cv_sock" = xyes; then
if test -n "$nore"; then
AC_NOTE(- hmmm... better take the fifos)
AC_DEFINE(NAMEDPIPE)
- elif test -n "$fifobr"; then
+ elif test x"$ac_cv_fifobr" = xyes; then
AC_NOTE(- as your fifos are broken lets use the sockets.)
else
AC_NOTE(- both sockets and fifos usable. let's take sockets.)
@@ -543,7 +533,7 @@
AC_NOTE(- using named pipes, of course)
AC_DEFINE(NAMEDPIPE)
fi
-elif test -n "$sock"; then
+elif test x"$ac_cv_sock" = xyes; then
AC_NOTE(- using unix-domain sockets, of course)
else
AC_MSG_ERROR(you have neither usable sockets nor usable pipes -> no screen)
@@ -553,7 +543,8 @@
dnl **** check the select implementation ****
dnl
-AC_CHECKING(select return value)
+AC_CACHE_CHECK([if select is broken], [ac_cv_select_broken],
+ [
AC_TRY_RUN([
/* For select - According to POSIX 1003.1-2001 */
#include <sys/select.h>
@@ -647,8 +638,13 @@
exit(1);
exit(0);
}
-],AC_NOTE(- select is ok),
-AC_NOTE(- select can't count) AC_DEFINE(SELECT_BROKEN))
+],AC_NOTE(- select is ok) ac_cv_select_broken=no,
+AC_NOTE(- select can't count) ac_cv_select_broken=yes)
+ ])
+
+if test x"$ac_cv_select_broken" = xyes; then
+ AC_DEFINE(SELECT_BROKEN)
+fi
dnl
dnl **** termcap or terminfo ****
@@ -685,12 +681,20 @@
AC_TRY_LINK(,tgetent((char *)0, (char *)0);,,
AC_MSG_ERROR(!!! no tgetent - no screen)))))))))
+AC_CACHE_CHECK([whether we talk terminfo], [ac_cv_terminfo],
+ [
AC_TRY_RUN([
main()
{
exit(strcmp(tgoto("%p1%d", 0, 1), "1") ? 0 : 1);
-}], AC_NOTE(- you use the termcap database),
-AC_NOTE(- you use the terminfo database) AC_DEFINE(TERMINFO))
+}], AC_NOTE(- you use the termcap database) ac_cv_terminfo=no ,
+AC_NOTE(- you use the terminfo database) ac_cv_terminfo=yes)
+ ])
+
+if test "x$ac_cv_terminfo" = "xyes" ; then
+ AC_DEFINE(TERMINFO)
+fi
+
AC_CHECKING(ospeed)
AC_TRY_LINK(extern short ospeed;,ospeed=5;,,AC_DEFINE(NEED_OSPEED))
@@ -1169,51 +1173,72 @@
AC_CHECKING(fdwalk)
AC_TRY_LINK([#include <stdlib.h>], [fdwalk(NULL, NULL);],AC_DEFINE(HAVE_FDWALK))
-AC_CHECKING(whether memcpy/memmove/bcopy handles overlapping arguments)
-AC_TRY_RUN([
+[bcopy_test_prog='
+#include "confdefs.h"
+#ifdef HAVE_STRING_H
+# include <string.h>
+#endif
+#if STDC_HEADERS
+# include <stdlib.h>
+# include <stddef.h>
+#endif
main() {
char buf[10];
strcpy(buf, "abcdefghi");
- bcopy(buf, buf + 2, 3);
+ mch_memmove(buf, buf + 2, 3);
if (strncmp(buf, "ababcf", 6))
exit(1);
strcpy(buf, "abcdefghi");
- bcopy(buf + 2, buf, 3);
+ mch_memmove(buf + 2, buf, 3);
if (strncmp(buf, "cdedef", 6))
exit(1);
exit(0); /* libc version works properly. */
-}], AC_DEFINE(USEBCOPY))
+}']
-AC_TRY_RUN([
-#define bcopy(s,d,l) memmove(d,s,l)
-main() {
- char buf[10];
- strcpy(buf, "abcdefghi");
- bcopy(buf, buf + 2, 3);
- if (strncmp(buf, "ababcf", 6))
- exit(1);
- strcpy(buf, "abcdefghi");
- bcopy(buf + 2, buf, 3);
- if (strncmp(buf, "cdedef", 6))
- exit(1);
- exit(0); /* libc version works properly. */
-}], AC_DEFINE(USEMEMMOVE))
+dnl Check for memmove() before bcopy(), makes memmove() be used when both are
+dnl present, fixes problem with incompatibility between Solaris 2.4 and 2.5.
+AC_CACHE_CHECK([whether memmove handles overlaps],[ac_cv_memmove_handles_overlap],
+ [
+ AC_TRY_RUN([#define mch_memmove(s,d,l) memmove(d,s,l) $bcopy_test_prog],
+ [
+ ac_cv_memmove_handles_overlap=yes
+ ],[
+ ac_cv_memmove_handles_overlap=no
+ ])
+ ])
-AC_TRY_RUN([
-#define bcopy(s,d,l) memcpy(d,s,l)
-main() {
- char buf[10];
- strcpy(buf, "abcdefghi");
- bcopy(buf, buf + 2, 3);
- if (strncmp(buf, "ababcf", 6))
- exit(1);
- strcpy(buf, "abcdefghi");
- bcopy(buf + 2, buf, 3);
- if (strncmp(buf, "cdedef", 6))
- exit(1);
- exit(0); /* libc version works properly. */
-}], AC_DEFINE(USEMEMCPY))
+if test "x$ac_cv_memmove_handles_overlap" = "xyes" ; then
+ AC_DEFINE(USEMEMMOVE)
+else
+ AC_CACHE_CHECK([whether bcopy handles overlaps],[ac_cv_bcopy_handles_overlap],
+ [
+ AC_TRY_RUN([#define mch_bcopy(s,d,l) bcopy(d,s,l) $bcopy_test_prog],
+ [
+ ac_cv_bcopy_handles_overlap=yes
+ ],[
+ ac_cv_bcopy_handles_overlap=no
+ ])
+ ])
+
+ if test "x$ac_cv_bcopy_handles_overlap" = "xyes" ; then
+ AC_DEFINE(USEBCOPY)
+ else
+ AC_CACHE_CHECK([whether memcpy handles overlaps],[ac_cv_memcpy_handles_overlap],
+ [
+ AC_TRY_RUN([#define mch_memcpy(s,d,l) memcpy(d,s,l) $bcopy_test_prog],
+ [
+ ac_cv_memcpy_handles_overlap=yes
+ ],[
+ ac_cv_memcpy_handles_overlap=no
+ ])
+ ])
+
+ if test "x$ac_cv_memcpy_handles_overlap" = "xyes" ; then
+ AC_DEFINE(USEMEMCPY)
+ fi
+ fi
+fi
AC_SYS_LONG_FILE_NAMES
@@ -1299,8 +1324,6 @@
dnl Ptx bug workaround -- insert -lc after -ltermcap
test -n "$seqptx" && LIBS="-ltermcap -lc -lsocket -linet -lnsl -lsec -lseq"
-AC_TRY_RUN(main(){exit(0);},,AC_MSG_ERROR(Can't run the compiler - internal error. Sorry.))
-
ETCSCREENRC=
AC_MSG_CHECKING(for the global screenrc file)
AC_ARG_WITH(sys-screenrc, [ --with-sys-screenrc=path to the global screenrc file], [ ETCSCREENRC="${withval}" ])
--- configure.org 2014-09-12 17:53:00.000000000 +0200
+++ configure 2014-09-12 17:53:10.000000000 +0200
@@ -3657,86 +3657,6 @@
-if test "$cross_compiling" = yes; then :
- { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
-as_fn_error $? "cannot run test program while cross compiling
-See \`config.log' for more details" "$LINENO" 5; }
-else
- cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h. */
-main(){exit(0);}
-_ACEOF
-if ac_fn_c_try_run "$LINENO"; then :
-
-else
-
-if test $CC != cc ; then
-echo "Your $CC failed - restarting with CC=cc" 1>&6
-
-echo "" 1>&6
-
-CC=cc
-export CC
-exec $0 $configure_args
-fi
-
-fi
-rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
- conftest.$ac_objext conftest.beam conftest.$ac_ext
-fi
-
-
-if test "$cross_compiling" = yes; then :
- { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
-as_fn_error $? "cannot run test program while cross compiling
-See \`config.log' for more details" "$LINENO" 5; }
-else
- cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h. */
-main(){exit(0);}
-_ACEOF
-if ac_fn_c_try_run "$LINENO"; then :
-
-else
- exec 5>&2
-eval $ac_link
-echo "CC=$CC; CFLAGS=$CFLAGS; LIBS=$LIBS;" 1>&6
-
-echo "$ac_compile" 1>&6
-
-as_fn_error $? "Can't run the compiler - sorry" "$LINENO" 5
-fi
-rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
- conftest.$ac_objext conftest.beam conftest.$ac_ext
-fi
-
-
-if test "$cross_compiling" = yes; then :
- { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
-as_fn_error $? "cannot run test program while cross compiling
-See \`config.log' for more details" "$LINENO" 5; }
-else
- cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h. */
-
-main()
-{
- int __something_strange_();
- __something_strange_(0);
-}
-
-_ACEOF
-if ac_fn_c_try_run "$LINENO"; then :
- as_fn_error $? "Your compiler does not set the exit status - sorry" "$LINENO" 5
-fi
-rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
- conftest.$ac_objext conftest.beam conftest.$ac_ext
-fi
-
-
for ac_prog in gawk mawk nawk awk
do
# Extract the first word of "$ac_prog", so it can be a program name with args.
@@ -4397,8 +4317,12 @@
rm -f core conftest.err conftest.$ac_objext \
conftest$ac_exeext conftest.$ac_ext
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking fifos..." >&5
-$as_echo "$as_me: checking fifos..." >&6;}
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking fifos" >&5
+$as_echo_n "checking fifos... " >&6; }
+if ${ac_cv_fifo+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+
if test "$cross_compiling" = yes; then :
{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
@@ -4475,10 +4399,10 @@
_ACEOF
if ac_fn_c_try_run "$LINENO"; then :
echo "- your fifos are usable" 1>&6
- fifo=1
+ ac_cv_fifo=yes
else
echo "- your fifos are not usable" 1>&6
-
+ ac_cv_fifo=no
fi
rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
conftest.$ac_objext conftest.beam conftest.$ac_ext
@@ -4486,9 +4410,17 @@
rm -f /tmp/conftest*
-if test -n "$fifo"; then
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for broken fifo implementation..." >&5
-$as_echo "$as_me: checking for broken fifo implementation..." >&6;}
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_fifo" >&5
+$as_echo "$ac_cv_fifo" >&6; }
+
+if test x"$ac_cv_fifo" = xyes; then
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for broken fifo implementation" >&5
+$as_echo_n "checking for broken fifo implementation... " >&6; }
+if ${ac_cv_fifobr+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+
if test "$cross_compiling" = yes; then :
{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
@@ -4543,22 +4475,34 @@
_ACEOF
if ac_fn_c_try_run "$LINENO"; then :
echo "- your implementation is ok" 1>&6
-
+ ac_cv_fifobr=no
else
echo "- you have a broken implementation" 1>&6
- $as_echo "#define BROKEN_PIPE 1" >>confdefs.h
- fifobr=1
+ ac_cv_fifobr=yes
fi
rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
conftest.$ac_objext conftest.beam conftest.$ac_ext
fi
rm -f /tmp/conftest*
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_fifobr" >&5
+$as_echo "$ac_cv_fifobr" >&6; }
fi
+if test "x$ac_cv_fifobr" = "xyes" ; then
+ $as_echo "#define BROKEN_PIPE 1" >>confdefs.h
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking sockets" >&5
+$as_echo_n "checking sockets... " >&6; }
+if ${ac_cv_sock+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking sockets..." >&5
-$as_echo "$as_me: checking sockets..." >&6;}
if test "$cross_compiling" = yes; then :
{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
@@ -4621,10 +4565,10 @@
_ACEOF
if ac_fn_c_try_run "$LINENO"; then :
echo "- your sockets are usable" 1>&6
- sock=1
+ ac_cv_sock=yes
else
echo "- your sockets are not usable" 1>&6
-
+ ac_cv_sock=no
fi
rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
conftest.$ac_objext conftest.beam conftest.$ac_ext
@@ -4632,9 +4576,17 @@
rm -f /tmp/conftest*
-if test -n "$sock"; then
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking socket implementation..." >&5
-$as_echo "$as_me: checking socket implementation..." >&6;}
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sock" >&5
+$as_echo "$ac_cv_sock" >&6; }
+
+if test x"$ac_cv_sock" = xyes; then
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if domain sockets are stored in file system" >&5
+$as_echo_n "checking if domain sockets are stored in file system... " >&6; }
+if ${ac_cv_socknofs+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+
if test "$cross_compiling" = yes; then :
{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
@@ -4679,29 +4631,36 @@
_ACEOF
if ac_fn_c_try_run "$LINENO"; then :
echo "- you are normal" 1>&6
-
+ av_cv_socknofs=no
else
echo "- unix domain sockets are not kept in the filesystem" 1>&6
-
-$as_echo "#define SOCK_NOT_IN_FS 1" >>confdefs.h
- socknofs=1
+ av_cv_socknofs=yes
fi
rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
conftest.$ac_objext conftest.beam conftest.$ac_ext
fi
rm -f /tmp/conftest*
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_socknofs" >&5
+$as_echo "$ac_cv_socknofs" >&6; }
fi
+if test "x$ac_cv_socknofs" = "xyes" ; then
+ $as_echo "#define SOCK_NOT_IN_FS 1" >>confdefs.h
-if test -n "$fifo"; then
- if test -n "$sock"; then
+fi
+
+
+if test x"$ac_cv_fifo" = xyes; then
+ if test x"$ac_cv_sock" = xyes; then
if test -n "$nore"; then
echo "- hmmm... better take the fifos" 1>&6
$as_echo "#define NAMEDPIPE 1" >>confdefs.h
- elif test -n "$fifobr"; then
+ elif test x"$ac_cv_fifobr" = xyes; then
echo "- as your fifos are broken lets use the sockets." 1>&6
else
@@ -4714,7 +4673,7 @@
$as_echo "#define NAMEDPIPE 1" >>confdefs.h
fi
-elif test -n "$sock"; then
+elif test x"$ac_cv_sock" = xyes; then
echo "- using unix-domain sockets" 1>&6
else
@@ -4722,8 +4681,12 @@
fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking select return value..." >&5
-$as_echo "$as_me: checking select return value..." >&6;}
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if select is broken" >&5
+$as_echo_n "checking if select is broken... " >&6; }
+if ${ac_cv_select_broken+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+
if test "$cross_compiling" = yes; then :
{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
@@ -4829,17 +4792,25 @@
_ACEOF
if ac_fn_c_try_run "$LINENO"; then :
echo "- select is ok" 1>&6
-
+ ac_cv_select_broken=no
else
echo "- select can't count" 1>&6
- $as_echo "#define SELECT_BROKEN 1" >>confdefs.h
-
+ ac_cv_select_broken=yes
fi
rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
conftest.$ac_objext conftest.beam conftest.$ac_ext
fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_select_broken" >&5
+$as_echo "$ac_cv_select_broken" >&6; }
+
+if test x"$ac_cv_select_broken" = xyes; then
+ $as_echo "#define SELECT_BROKEN 1" >>confdefs.h
+
+fi
+
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for tgetent..." >&5
$as_echo "$as_me: checking for tgetent..." >&6;}
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -5008,6 +4979,12 @@
rm -f core conftest.err conftest.$ac_objext \
conftest$ac_exeext conftest.$ac_ext
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we talk terminfo" >&5
+$as_echo_n "checking whether we talk terminfo... " >&6; }
+if ${ac_cv_terminfo+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+
if test "$cross_compiling" = yes; then :
{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
@@ -5024,16 +5001,25 @@
_ACEOF
if ac_fn_c_try_run "$LINENO"; then :
echo "- you use the termcap database" 1>&6
-
+ ac_cv_terminfo=no
else
echo "- you use the terminfo database" 1>&6
- $as_echo "#define TERMINFO 1" >>confdefs.h
-
+ ac_cv_terminfo=yes
fi
rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
conftest.$ac_objext conftest.beam conftest.$ac_ext
fi
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_terminfo" >&5
+$as_echo "$ac_cv_terminfo" >&6; }
+
+if test "x$ac_cv_terminfo" = "xyes" ; then
+ $as_echo "#define TERMINFO 1" >>confdefs.h
+
+fi
+
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking ospeed..." >&5
$as_echo "$as_me: checking ospeed..." >&6;}
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -6140,32 +6126,52 @@
rm -f core conftest.err conftest.$ac_objext \
conftest$ac_exeext conftest.$ac_ext
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether memcpy/memmove/bcopy handles overlapping arguments..." >&5
-$as_echo "$as_me: checking whether memcpy/memmove/bcopy handles overlapping arguments..." >&6;}
-if test "$cross_compiling" = yes; then :
- { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
-as_fn_error $? "cannot run test program while cross compiling
-See \`config.log' for more details" "$LINENO" 5; }
-else
- cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h. */
-
+bcopy_test_prog='
+#include "confdefs.h"
+#ifdef HAVE_STRING_H
+# include <string.h>
+#endif
+#if STDC_HEADERS
+# include <stdlib.h>
+# include <stddef.h>
+#endif
main() {
char buf[10];
strcpy(buf, "abcdefghi");
- bcopy(buf, buf + 2, 3);
+ mch_memmove(buf, buf + 2, 3);
if (strncmp(buf, "ababcf", 6))
exit(1);
strcpy(buf, "abcdefghi");
- bcopy(buf + 2, buf, 3);
+ mch_memmove(buf + 2, buf, 3);
if (strncmp(buf, "cdedef", 6))
exit(1);
exit(0); /* libc version works properly. */
-}
+}'
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether memmove handles overlaps" >&5
+$as_echo_n "checking whether memmove handles overlaps... " >&6; }
+if ${ac_cv_memmove_handles_overlap+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+
+ if test "$cross_compiling" = yes; then :
+ { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "cannot run test program while cross compiling
+See \`config.log' for more details" "$LINENO" 5; }
+else
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+#define mch_memmove(s,d,l) memmove(d,s,l) $bcopy_test_prog
_ACEOF
if ac_fn_c_try_run "$LINENO"; then :
- $as_echo "#define USEBCOPY 1" >>confdefs.h
+
+ ac_cv_memmove_handles_overlap=yes
+
+else
+
+ ac_cv_memmove_handles_overlap=no
fi
rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
@@ -6173,7 +6179,21 @@
fi
-if test "$cross_compiling" = yes; then :
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_memmove_handles_overlap" >&5
+$as_echo "$ac_cv_memmove_handles_overlap" >&6; }
+
+if test "x$ac_cv_memmove_handles_overlap" = "xyes" ; then
+ $as_echo "#define USEMEMMOVE 1" >>confdefs.h
+
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether bcopy handles overlaps" >&5
+$as_echo_n "checking whether bcopy handles overlaps... " >&6; }
+if ${ac_cv_bcopy_handles_overlap+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+
+ if test "$cross_compiling" = yes; then :
{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
as_fn_error $? "cannot run test program while cross compiling
@@ -6181,23 +6201,15 @@
else
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
-
-#define bcopy(s,d,l) memmove(d,s,l)
-main() {
- char buf[10];
- strcpy(buf, "abcdefghi");
- bcopy(buf, buf + 2, 3);
- if (strncmp(buf, "ababcf", 6))
- exit(1);
- strcpy(buf, "abcdefghi");
- bcopy(buf + 2, buf, 3);
- if (strncmp(buf, "cdedef", 6))
- exit(1);
- exit(0); /* libc version works properly. */
-}
+#define mch_bcopy(s,d,l) bcopy(d,s,l) $bcopy_test_prog
_ACEOF
if ac_fn_c_try_run "$LINENO"; then :
- $as_echo "#define USEMEMMOVE 1" >>confdefs.h
+
+ ac_cv_bcopy_handles_overlap=yes
+
+else
+
+ ac_cv_bcopy_handles_overlap=no
fi
rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
@@ -6205,8 +6217,21 @@
fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_bcopy_handles_overlap" >&5
+$as_echo "$ac_cv_bcopy_handles_overlap" >&6; }
-if test "$cross_compiling" = yes; then :
+ if test "x$ac_cv_bcopy_handles_overlap" = "xyes" ; then
+ $as_echo "#define USEBCOPY 1" >>confdefs.h
+
+ else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether memcpy handles overlaps" >&5
+$as_echo_n "checking whether memcpy handles overlaps... " >&6; }
+if ${ac_cv_memcpy_handles_overlap+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+
+ if test "$cross_compiling" = yes; then :
{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
as_fn_error $? "cannot run test program while cross compiling
@@ -6214,23 +6239,15 @@
else
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
-
-#define bcopy(s,d,l) memcpy(d,s,l)
-main() {
- char buf[10];
- strcpy(buf, "abcdefghi");
- bcopy(buf, buf + 2, 3);
- if (strncmp(buf, "ababcf", 6))
- exit(1);
- strcpy(buf, "abcdefghi");
- bcopy(buf + 2, buf, 3);
- if (strncmp(buf, "cdedef", 6))
- exit(1);
- exit(0); /* libc version works properly. */
-}
+#define mch_memcpy(s,d,l) memcpy(d,s,l) $bcopy_test_prog
_ACEOF
if ac_fn_c_try_run "$LINENO"; then :
- $as_echo "#define USEMEMCPY 1" >>confdefs.h
+
+ ac_cv_memcpy_handles_overlap=yes
+
+else
+
+ ac_cv_memcpy_handles_overlap=no
fi
rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
@@ -6238,6 +6255,17 @@
fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_memcpy_handles_overlap" >&5
+$as_echo "$ac_cv_memcpy_handles_overlap" >&6; }
+
+ if test "x$ac_cv_memcpy_handles_overlap" = "xyes" ; then
+ $as_echo "#define USEMEMCPY 1" >>confdefs.h
+
+ fi
+ fi
+fi
+
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for long file names" >&5
$as_echo_n "checking for long file names... " >&6; }
if ${ac_cv_sys_long_file_names+:} false; then :
@@ -6718,26 +6746,6 @@
fi
test -n "$seqptx" && LIBS="-ltermcap -lc -lsocket -linet -lnsl -lsec -lseq"
-if test "$cross_compiling" = yes; then :
- { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
-as_fn_error $? "cannot run test program while cross compiling
-See \`config.log' for more details" "$LINENO" 5; }
-else
- cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h. */
-main(){exit(0);}
-_ACEOF
-if ac_fn_c_try_run "$LINENO"; then :
-
-else
- as_fn_error $? "Can't run the compiler - internal error. Sorry." "$LINENO" 5
-fi
-rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
- conftest.$ac_objext conftest.beam conftest.$ac_ext
-fi
-
-
ETCSCREENRC=
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for the global screenrc file" >&5
$as_echo_n "checking for the global screenrc file... " >&6; }
