Talk:371: Compiler Complaint - Revision history

Prallax at 21:35, 25 July 2023

2023-07-25T21:35:10Z

APerson: r

2018-10-29T06:17:53Z

Davidy22 at 01:43, 27 December 2015

2015-12-27T01:43:10Z

Flewk at 22:51, 26 December 2015

2015-12-26T22:51:50Z

173.245.54.31: Made slightly more efficient.

2014-03-22T14:11:48Z

Made slightly more efficient.

Hkmaly: Created page with "The test "whether build environment is sane" have nothing to do with libraries (those are tested later) or compilation at all (ditto). It seems to test ls and creating new fil..."

2013-09-17T10:15:17Z

Created page with "The test "whether build environment is sane" have nothing to do with libraries (those are tested later) or compilation at all (ditto). It seems to test ls and creating new fil..."

New page

The test "whether build environment is sane" have nothing to do with libraries (those are tested later) or compilation at all (ditto). It seems to test ls and creating new files. Failing this test will surely means lot of problems, but certainly there are other possible sources of problems (some tested later), so not sure why it's labeled this way ... there is probably interresting history behind this.

The test goes like this (example taken from coreutils-5.94):
{ echo "$as_me:$LINENO: checking whether build environment is sane" >&5
echo $ECHO_N "checking whether build environment is sane... $ECHO_C" >&6; }
# Just in case
sleep 1
echo timestamp > conftest.file
# Do `set' in a subshell so we don't clobber the current shell's
# arguments. Must try -L first in case configure is actually a
# symlink; some systems play weird games with the mod time of symlinks
# (eg FreeBSD returns the mod time of the symlink's containing
# directory).
if (
set X `ls -Lt $srcdir/configure conftest.file 2> /dev/null`
if test "$*" = "X"; then
# -L didn't work.
set X `ls -t $srcdir/configure conftest.file`
fi
rm -f conftest.file
if test "$*" != "X $srcdir/configure conftest.file" \
&& test "$*" != "X conftest.file $srcdir/configure"; then

# If neither matched, then we have a broken ls. This can happen
# if, for instance, CONFIG_SHELL is bash and it inherits a
# broken ls alias from the environment. This has actually
# happened. Such a system could not be considered "sane".
{ { echo "$as_me:$LINENO: error: ls -t appears to fail. Make sure there is not a broken
alias in your environment" >&5
echo "$as_me: error: ls -t appears to fail. Make sure there is not a broken
alias in your environment" >&2;}
{ (exit 1); exit 1; }; }
fi

test "$2" = conftest.file
)
then
# Ok.
:
else
{ { echo "$as_me:$LINENO: error: newly created file is older than distributed files!
Check your system clock" >&5
echo "$as_me: error: newly created file is older than distributed files!
Check your system clock" >&2;}
{ (exit 1); exit 1; }; }
fi
{ echo "$as_me:$LINENO: result: yes" >&5
echo "${ECHO_T}yes" >&6; }
-- [[User:Hkmaly|Hkmaly]] ([[User talk:Hkmaly|talk]]) 10:15, 17 September 2013 (UTC)

← Older revision		Revision as of 21:35, 25 July 2023
Line 51:		Line 51:
	I do not think Randall is suggesting that segfaults are a compiler issue. The insane computer stopped the person before compiling, because this would be the only time that he could change the code to prevent possible segfaults during runtime.{{unsigned\|Flewk}}		I do not think Randall is suggesting that segfaults are a compiler issue. The insane computer stopped the person before compiling, because this would be the only time that he could change the code to prevent possible segfaults during runtime.{{unsigned\|Flewk}}
	:You're totally right; unless it's an interpreter, or the compiler is running some code at compile-time, the compiler will almost never get a segfault itself due to a buggy program. I updated the explanation to clarify this. [[User:APerson\|APerson]] ([[User talk:APerson\|talk!]]) 06:17, 29 October 2018 (UTC)		:You're totally right; unless it's an interpreter, or the compiler is running some code at compile-time, the compiler will almost never get a segfault itself due to a buggy program. I updated the explanation to clarify this. [[User:APerson\|APerson]] ([[User talk:APerson\|talk!]]) 06:17, 29 October 2018 (UTC)
		+
		+	;Reference in the title text
		+	Could the title text be a reference to the ending of the movie "Identitiy" (2003)? SPOILER ALERT - At the end of the movie we see Timmy grinning and holding a spatula just before murdering Paris. And Timmy is very much insane. - END SPOILER [[User:Prallax\|Prallax]] ([[User talk:Prallax\|talk]]) 21:35, 25 July 2023 (UTC)

← Older revision		Revision as of 06:17, 29 October 2018
Line 50:		Line 50:
	;segfaults		;segfaults
	I do not think Randall is suggesting that segfaults are a compiler issue. The insane computer stopped the person before compiling, because this would be the only time that he could change the code to prevent possible segfaults during runtime.{{unsigned\|Flewk}}		I do not think Randall is suggesting that segfaults are a compiler issue. The insane computer stopped the person before compiling, because this would be the only time that he could change the code to prevent possible segfaults during runtime.{{unsigned\|Flewk}}
		+	:You're totally right; unless it's an interpreter, or the compiler is running some code at compile-time, the compiler will almost never get a segfault itself due to a buggy program. I updated the explanation to clarify this. [[User:APerson\|APerson]] ([[User talk:APerson\|talk!]]) 06:17, 29 October 2018 (UTC)

← Older revision		Revision as of 01:43, 27 December 2015
Line 49:		Line 49:

	;segfaults		;segfaults
−	I do not think Randall is suggesting that segfaults are a compiler issue. The insane computer stopped the person before compiling, because this would be the only time that he could change the code to prevent possible segfaults during runtime.	+	I do not think Randall is suggesting that segfaults are a compiler issue. The insane computer stopped the person before compiling, because this would be the only time that he could change the code to prevent possible segfaults during runtime.{{unsigned\|Flewk}}

← Older revision		Revision as of 22:51, 26 December 2015
Line 47:		Line 47:

	Made slightly more efficient. [[Special:Contributions/173.245.54.31\|173.245.54.31]] 14:11, 22 March 2014 (UTC)		Made slightly more efficient. [[Special:Contributions/173.245.54.31\|173.245.54.31]] 14:11, 22 March 2014 (UTC)
		+
		+	;segfaults
		+	I do not think Randall is suggesting that segfaults are a compiler issue. The insane computer stopped the person before compiling, because this would be the only time that he could change the code to prevent possible segfaults during runtime.

@@ Line 12: / Line 12: @@
    # (eg FreeBSD returns the mod time of the symlink's containing
    # directory).
-   if (
+   if ! (
     set X `ls -Lt $srcdir/configure conftest.file 2> /dev/null`
     if test "$*" = "X"; then
@@ Line 36: / Line 36: @@
+    )
    then
     { { echo "$as_me:$LINENO: error: newly created file is older than distributed files!
    Check your system clock" >&5
@@ Line 48: / Line 45: @@
    echo "${ECHO_T}yes" >&6; }
 -- [[User:Hkmaly|Hkmaly]] ([[User talk:Hkmaly|talk]]) 10:15, 17 September 2013 (UTC)