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* acgeneral.m4 (_AC_INIT_PREPARE): Remove conf$$* on exit.

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* m4sh.m4 (_AS_LN_S_PREPARE, _AS_BROKEN_TEST_PREPARE):
s/conftest/conf$$/ to avoid race conditions.
From Lars J. Aas.
This commit is contained in:
Akim Demaille 2001-02-25 10:44:37 +00:00
parent ec1cffc581
commit ebf04e44de
5 changed files with 37 additions and 26 deletions
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7
ChangeLog
View File

@ -1,3 +1,10 @@
2001-02-25 Akim Demaille <akim@epita.fr>
* acgeneral.m4 (_AC_INIT_PREPARE): Remove conf$$* on exit.
* m4sh.m4 (_AS_LN_S_PREPARE, _AS_BROKEN_TEST_PREPARE):
s/conftest/conf$$/ to avoid race conditions.
From Lars J. Aas.
2001-02-25 Akim Demaille <akim@epita.fr>
* acspecific.m4 (AC_PROG_INSTALL): Use ac_path_separator.

2
acgeneral.m4
View File

@ -1442,7 +1442,7 @@ trap 'exit_status=$?
test "$ac_signal" != 0 &&
echo "$as_me: caught signal $ac_signal" >&AS_MESSAGE_LOG_FD
echo "$as_me: exit $exit_status" >&AS_MESSAGE_LOG_FD
rm -rf conftest* confdefs* core core.* *.core $ac_clean_files &&
rm -rf conftest* confdefs* core core.* *.core conf$$* $ac_clean_files &&
exit $exit_status
' 0
for ac_signal in 1 2 13 15; do

2
lib/autoconf/general.m4
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@ -1442,7 +1442,7 @@ trap 'exit_status=$?
test "$ac_signal" != 0 &&
echo "$as_me: caught signal $ac_signal" >&AS_MESSAGE_LOG_FD
echo "$as_me: exit $exit_status" >&AS_MESSAGE_LOG_FD
rm -rf conftest* confdefs* core core.* *.core $ac_clean_files &&
rm -rf conftest* confdefs* core core.* *.core conf$$* $ac_clean_files &&
exit $exit_status
' 0
for ac_signal in 1 2 13 15; do

26
lib/m4sugar/m4sh.m4
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@ -317,25 +317,27 @@ fi
# _AS_LN_S_PREPARE
# ----------------
# Don't use conftest.sym to avoid filename issues on DJGPP, where this
# would yield conftest.sym.exe for DJGPP < 2.04.
# would yield conftest.sym.exe for DJGPP < 2.04. And do use `conftest'
# as base name to avoid prohibiting concurrency (e.g., concurrent
# config.statuses).
m4_defun([_AS_LN_S_PREPARE],
[rm -f conftest conftest.exe conftest.file
echo >conftest.file
if ln -s conftest.file conftest 2>/dev/null; then
[rm -f conf$$ conf$$.exe conf$$.file
echo >conf$$.file
if ln -s conf$$.file conf$$ 2>/dev/null; then
# We could just check for DJGPP; but this test a) works b) is more generic
# and c) will remain valid once DJGPP supports symlinks (DJGPP 2.04).
if test -f conftest.exe; then
if test -f conf$$.exe; then
# Don't use ln at all; we don't have any links
as_ln_s='cp -p'
else
as_ln_s='ln -s'
fi
elif ln conftest.file conftest 2>/dev/null; then
elif ln conf$$.file conf$$ 2>/dev/null; then
as_ln_s=ln
else
as_ln_s='cp -p'
fi
rm -f conftest conftest.exe conftest.file
rm -f conf$$ conf$$.exe conf$$.file
])# _AS_LN_S_PREPARE
@ -384,19 +386,19 @@ done; }
m4_defun([_AS_BROKEN_TEST_PREPARE],
[# Find out how to test for executable files. Don't use a zero-byte file,
# as systems may use methods other than mode bits to determine executability.
cat >conftest.file <<_ASEOF
cat >conf$$.file <<_ASEOF
@%:@! /bin/sh
exit 0
_ASEOF
chmod +x conftest.file
if test -x conftest.file >/dev/null 2>&1; then
chmod +x conf$$.file
if test -x conf$$.file >/dev/null 2>&1; then
as_executable_p="test -x"
elif test -f conftest.file >/dev/null 2>&1; then
elif test -f conf$$.file >/dev/null 2>&1; then
as_executable_p="test -f"
else
AS_ERROR([cannot check whether a file is executable on this system])
fi
rm -f conftest.file
rm -f conf$$.file
])# _AS_BROKEN_TEST_PREPARE

26
m4sh.m4
View File

@ -317,25 +317,27 @@ fi
# _AS_LN_S_PREPARE
# ----------------
# Don't use conftest.sym to avoid filename issues on DJGPP, where this
# would yield conftest.sym.exe for DJGPP < 2.04.
# would yield conftest.sym.exe for DJGPP < 2.04. And do use `conftest'
# as base name to avoid prohibiting concurrency (e.g., concurrent
# config.statuses).
m4_defun([_AS_LN_S_PREPARE],
[rm -f conftest conftest.exe conftest.file
echo >conftest.file
if ln -s conftest.file conftest 2>/dev/null; then
[rm -f conf$$ conf$$.exe conf$$.file
echo >conf$$.file
if ln -s conf$$.file conf$$ 2>/dev/null; then
# We could just check for DJGPP; but this test a) works b) is more generic
# and c) will remain valid once DJGPP supports symlinks (DJGPP 2.04).
if test -f conftest.exe; then
if test -f conf$$.exe; then
# Don't use ln at all; we don't have any links
as_ln_s='cp -p'
else
as_ln_s='ln -s'
fi
elif ln conftest.file conftest 2>/dev/null; then
elif ln conf$$.file conf$$ 2>/dev/null; then
as_ln_s=ln
else
as_ln_s='cp -p'
fi
rm -f conftest conftest.exe conftest.file
rm -f conf$$ conf$$.exe conf$$.file
])# _AS_LN_S_PREPARE
@ -384,19 +386,19 @@ done; }
m4_defun([_AS_BROKEN_TEST_PREPARE],
[# Find out how to test for executable files. Don't use a zero-byte file,
# as systems may use methods other than mode bits to determine executability.
cat >conftest.file <<_ASEOF
cat >conf$$.file <<_ASEOF
@%:@! /bin/sh
exit 0
_ASEOF
chmod +x conftest.file
if test -x conftest.file >/dev/null 2>&1; then
chmod +x conf$$.file
if test -x conf$$.file >/dev/null 2>&1; then
as_executable_p="test -x"
elif test -f conftest.file >/dev/null 2>&1; then
elif test -f conf$$.file >/dev/null 2>&1; then
as_executable_p="test -f"
else
AS_ERROR([cannot check whether a file is executable on this system])
fi
rm -f conftest.file
rm -f conf$$.file
])# _AS_BROKEN_TEST_PREPARE