lxdm-binary dies not link to PAM libraries, even though --with-pam is passed to the configure script Reproducible: Always Steps to Reproduce: 1. emerge lxdm Actual Results: See the log nelow - the PAM presence is not even checked for! Expected Results: This is what I get when I remove --with-pam from the ./configure line checking for pam_open_session in -lpam... yes ... i686-pc-linux-gnu-gcc -I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/include -DCONFIG_FILE=\"/etc/lxdm/lxdm.conf\" -DXSESSIONS_DIR=\"/usr/share/xsessions\" -DLXDM_DATA_DIR=/usr/share/lxdm -DLXDM_NUMLOCK_PATH=\"/usr/libexec/lxdm-numlock\" -I/usr/include/ConsoleKit/ck-connector -I/usr/include/dbus-1.0 -I/usr/lib/dbus-1.0/include -Werror-implicit-function-declaration -Wall -g -O2 -DENABLE_PASSWORD -DLXDM_DEBUG -DLXDM_XCONN_XCB -o lxdm-binary lxdm_binary-lxdm.o lxdm_binary-ui.o lxdm_binary-lxcom.o lxdm_binary-xconn.o -lglib-2.0 -lxcb -lck-connector -ldbus-1 -lpthread -lrt -lck-connector -lpam -lcrypt ./configure --prefix=/usr --build=i686-pc-linux-gnu --host=i686-pc-linux-gnu --mandir=/usr/share/man --infodir=/usr/share/info --datadir=/usr/share --sysconfdir=/etc --localstatedir=/var/lib --enable-password --with-pam --with-x --with-xconn=xcb --disable-gtk3 --enable-nls --disable-debug configure: loading site script /usr/share/config.site configure: loading site script /usr/share/crossdev/include/site/linux configure: loading site script /usr/share/crossdev/include/site/i686-linux-gnu checking for a BSD-compatible install... /usr/bin/install -c checking whether build environment is sane... yes checking for a thread-safe mkdir -p... /bin/mkdir -p checking for gawk... gawk checking whether make sets $(MAKE)... yes checking for i686-pc-linux-gnu-gcc... i686-pc-linux-gnu-gcc checking whether the C compiler works... yes checking for C compiler default output file name... a.out checking for suffix of executables... checking whether we are cross compiling... no checking for suffix of object files... o checking whether we are using the GNU C compiler... yes checking whether i686-pc-linux-gnu-gcc accepts -g... yes checking for i686-pc-linux-gnu-gcc option to accept ISO C89... none needed checking for style of include used by make... GNU checking dependency style of i686-pc-linux-gnu-gcc... gcc3 checking whether i686-pc-linux-gnu-gcc and cc understand -c and -o together... yes checking for crypt in -lcrypt... yes checking for ck_connector_open_session in -lck-connector... yes checking how to run the C preprocessor... i686-pc-linux-gnu-gcc -E checking for X... libraries , headers checking for grep that handles long lines and -e... /bin/grep checking for egrep... /bin/grep -E checking for ANSI C header files... yes checking for sys/types.h... yes checking for sys/stat.h... yes checking for stdlib.h... yes checking for string.h... yes checking for memory.h... yes checking for strings.h... yes checking for inttypes.h... yes checking for stdint.h... yes checking for unistd.h... yes checking shadow.h usability... yes checking shadow.h presence... yes checking for shadow.h... yes checking for stdlib.h... (cached) yes checking for string.h... (cached) yes checking for unistd.h... (cached) yes checking utmpx.h usability... yes checking utmpx.h presence... yes checking for utmpx.h... yes checking for pid_t... yes checking vfork.h usability... no checking vfork.h presence... no checking for vfork.h... no checking for fork... yes checking for vfork... yes checking for working fork... yes checking for working vfork... (cached) yes checking for atexit... yes checking for endpwent... yes checking for getspnam... yes checking for getusershell... yes checking for memset... yes checking for putenv... yes checking for strstr... yes checking whether iso-codes has iso-639 domain... yes checking whether NLS is requested... yes checking for intltool >= 0.40.0... 0.41.1 found checking for intltool-update... /usr/bin/intltool-update checking for intltool-merge... /usr/bin/intltool-merge checking for intltool-extract... /usr/bin/intltool-extract checking for xgettext... /usr/bin/xgettext checking for msgmerge... /usr/bin/msgmerge checking for msgfmt... /usr/bin/msgfmt checking for gmsgfmt... /usr/bin/gmsgfmt checking for perl... /usr/bin/perl checking for perl >= 5.8.1... 5.12.3 checking for XML::Parser... ok checking for i686-pc-linux-gnu-pkg-config... no checking for pkg-config... /usr/bin/pkg-config checking pkg-config is at least version 0.9.0... yes checking for XLIB... yes checking for GLIB... yes checking for GDK... yes checking for GTK... yes checking for CONSOLEKIT... yes checking for XCONN... yes configure: creating ./config.status config.status: creating Makefile config.status: creating lxdm.spec config.status: creating src/Makefile config.status: creating po/Makefile.in config.status: creating pam/Makefile config.status: creating data/Makefile config.status: creating data/PostLogin config.status: creating data/PostLogout config.status: creating data/PreLogin config.status: creating data/PreReboot config.status: creating data/PreShutdown config.status: creating data/LoginReady config.status: creating data/lxdm config.status: creating config.h config.status: executing depfiles commands config.status: executing po/stamp-it commands >>> Source configured.
We need some sort of output of the actual crash
There is no crash, are you sure that you have added your comment to the correct bug? I have published some analysis of this bug in my blog: http://patrakov.blogspot.com/2011/09/autoconf-and-defaults.html
you say that lxdm-binary dies? So where is the crash?Where does it die? In compilation? During runtime? and build.log available?
I didn't say that it dies. In fact, it works, but disobeys PAM rules. This happens because it is not linked to the PAM library, even though the ebuild tells it to. Here is the problematic piece of configure.ac: AC_ARG_WITH(pam,AC_HELP_STRING([--without-pam],[build without pam]), [],[AC_CHECK_LIB([pam], [pam_open_session])]) It disables PAM if --with-pam (or --without-pam) is passed.
Oh, there is a typo in the original description. Sorry for that. s/dies/does/
Right. Could you please prepare a patch and send them to upstream people? I will commit an updated ebuild soon http://sourceforge.net/tracker/?group_id=316117&atid=1329778
+*lxdm-0.4.1-r2 (27 Sep 2011) + + 27 Sep 2011; Markos Chandras <hwoarang@gentoo.org> +lxdm-0.4.1-r2.ebuild: + Drop --with-pam since it silently disabled pam support. bug #384615 by + Alexander E. Patrakov <patrakov@gmail.com> +
Removing pam in lxdm (0.4.1-r2) leads to the well-known problem: it is impossible to terminate the session (in my case, LXDE) shutdown. A dialog box prompts you to enter the password root. The only option - is the usual end of the session and the transition to lxdm, from which it is possible to turn off or reboot the system. I have confidence that the removal of support for pam is premature, or they work to disable the support has not been fully implemented. Including this bug.
