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Hello again, After (finally?!) noticing that a new release of the cygwin.dll was made on Sept. 4 and being encouraged by the line: "- Fix mysterious configure script premature exit. (Pierre Humblet)" I decided to check against the latest public release. The problem continues to persist, unfortunately. I created a simplified testcase, by realizing that a simple configure.ac will let autoconf generate a suitable configure script. This auto-generated configure script exhibits the argument parsing failure as readily as any script taken from a build environment. It is also attached (as text this time, sorry for all the compressed business I mucked with previously). Here is the configure.ac file needed for autoconf: [/jail/cygwin-1.5.11.1-std] cat configure.ac AC_PREREQ(2.57) AC_INIT([expr-configure],[1.5.11-1],[cygwin at cygwin dot com]) # for the purpose of this test, getting here is a success exit 0 To generate the configure script, just run 'autoconf'. The command for configure that exhibits the failure is: ./configure -n \ --target=i386-rtems \ --enable-rtemsbsp=386pc \ --host=i686-pc-cygwin \ --build=i686-pc-cygwin \ build_alias=i686-pc-cygwin \ host_alias=i686-pc-cygwin \ target_alias=i386-rtems \ --cache-file=/dev/null It doesn't happen all the time, of course. The *extremely curious* thing is that simply removing the '--enable-rtemsbsp=386pc' appears to make the configure script work all the time. I have experimented with reordering the arguments, putting '--cache-file=/dev/null' at the top, etc. It is easy to make the problem go away. This sequence seems to cause the problem most quickly. While performing the above tests in my chroot jails, I observed a new failure mode: [/jail/cygwin-1.5.11.1-std] ./test-configure *** CREATE configure.ac *** *** GENERATE configure *** Running using function fail()... *** TEST 0 *** *** TEST 1 *** *** TEST 1 FAILS *** configure: error: invalid variable name: build_alias [/jail] chroot /jail/cygwin-1.5.11.1-std /bin/bash -l $ ./test-configure Running using function fail()... *** TEST 0 *** *** TEST 0 FAILS *** configure: error: sources are in /, but `cd /' does not work This does not occur, if I replace /bin/bash in the jail with a locally compiled bash.exe (based on 2.05b, that has the RECYCLES_PIDS defined): [/jail] chroot /jail/cygwin-1.5.11.1-bash205b /bin/bash -l $ ./test-configure Running using function fail()... *** TEST 0 *** *** TEST 1 *** *** TEST 2 *** *** TEST 3 *** *** TEST 4 *** *** TEST 5 *** *** TEST 6 *** *** TEST 7 *** *** TEST 8 *** *** TEST 8 FAILS *** configure: error: invalid variable name: build_alias Rather, the issue we are pursuing occurs. What is interesting, is that in the 'std' case above, if one keeps calling the script, one can get the 'invalid variable name' error *instead* of the 'sources are in...' error. This suggests that the two are possibly related and 'RECYCLES_PIDS' has some bearing on the real issue. Anyway, the attached script (test-configure) will create the above configure.ac, generate configure (via. autoconf), and run the above line over and over until failure. I am also attaching cygcheck.out for my environment as it now exists. Thanks to anyone looking at this; even if simply to say 'yup, it's a problem', or 'no, you are wrong about this...' Best Regards, -bogdan p.s. For a chroot jail, the following programs are required at a minimum: $ ls /bin bash.exe cygintl-2.dll cygpcreposix.dll ls.exe sleep.exe cat.exe cygintl-3.dll cygwin1.dll mkdir.exe sort.exe chmod.exe cygintl.dll date.exe pwd.exe tail.exe clear.exe cygpcre-0.dll echo.exe rm.exe touch.exe cygiconv-2.dll cygpcre.dll expr.exe sed.exe wc.exe cygintl-1.dll cygpcreposix-0.dll grep.exe sh.exe $ ls /etc profile $ cat /etc/profile PATH=/bin PS1='$ ' p.p.s. Refer to my original post for any required background: http://www.cygwin.com/ml/cygwin/2004-09/msg00518.html
Attachment:
test-configure
Description: Binary data
Attachment:
cygcheck.out
Description: Binary data
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