linux-pam/configure.in

dnl Process this file with autoconf to produce a configure script.
AC_INIT(conf/pam_conv1/pam_conv.y)

dnl The configuration header file
AC_CONFIG_HEADER(_pam_aconf.h)

dnl
dnl Release specific
dnl

LIBPAM_VERSION_MAJOR=0
LIBPAM_VERSION_MINOR=79

AC_SUBST(LIBPAM_VERSION_MAJOR)
AC_SUBST(LIBPAM_VERSION_MINOR)
AC_DEFINE(LIBPAM_VERSION_MAJOR)
AC_DEFINE(LIBPAM_VERSION_MINOR)

dnl
dnl By default, everything under PAM is installed under the root fs.
dnl

AC_PREFIX_DEFAULT()

dnl
dnl Useful info (believed to be portable) - in the future
dnl the LOCALSRCDIR and LOCALOBJDIRs may be different
dnl
LOCALSRCDIR=`/bin/pwd`         ; AC_SUBST(LOCALSRCDIR)
LOCALOBJDIR=`/bin/pwd`         ; AC_SUBST(LOCALOBJDIR)
OS=`uname|sed -e 'y/ABCDEFGHIJKLMNOPQRSTUVWXYZ/abcdefghijklmnopqrstuvwxyz/'`
AC_SUBST(OS)

dnl
dnl Rules needed for the following (hardcoded Linux defaults for now)
dnl

CONF_CFLAGS=			; AC_SUBST(CONF_CFLAGS)
MKDIR="mkdir -p"		; AC_SUBST(MKDIR)

SHLIBMODE=755			; AC_SUBST(SHLIBMODE)
MANMODE=644			; AC_SUBST(MANMODE)

dnl These are most likely platform specific - I think HPUX differs
USESONAME=yes			; AC_SUBST(USESONAME)
SOSWITCH="-Wl,-soname -Wl,"	; AC_SUBST(SOSWITCH)
NEEDSONAME=yes			; AC_SUBST(NEEDSONAME)
LDCONFIG=/sbin/ldconfig		; AC_SUBST(LDCONFIG)

dnl Checks for programs.
AC_PROG_CC
dnl ### AC_PROG_CXX
AC_PROG_YACC
AC_PROG_LEX
AC_PROG_INSTALL
AC_PROG_LN_S
AC_PROG_MAKE_SET

dnl
dnl options and defaults
dnl

dnl lots of debugging information goes to /tmp/pam-debug.log
AC_ARG_ENABLE(debug,
[  --enable-debug           specify you are building with debugging on],
	WITH_DEBUG=yes ; AC_DEFINE(DEBUG) , WITH_DEBUG=no)
AC_SUBST(WITH_DEBUG)

AC_ARG_ENABLE(memory-debug,
[  --enable-memory-debug    specify you want every malloc etc. call tracked],
	WITH_MEMORY_DEBUG=yes ; AC_DEFINE(MEMORY_DEBUG) , WITH_MEMORY_DEBUG=no)
AC_SUBST(WITH_MEMORY_DEBUG)

dnl build specially named libraries (for debugging purposes)
AC_ARG_ENABLE(libdebug,
[  --enable-libdebug        specify you are building debugging libraries],
	WITH_LIBDEBUG=yes ; AC_DEFINE(WITH_LIBDEBUG) , WITH_LIBDEBUG=no)
AC_SUBST(WITH_LIBDEBUG)

dnl have prelude support
AC_ARG_ENABLE(prelude,
[  --enable-prelude         build prelude ids support],
        WITH_PRELUDE=yes ; AC_DEFINE(WITH_PRELUDE), WITH_PRELUDE=no)
AC_SUBST(WITH_PRELUDE)

dnl packaging convenience
AC_ARG_ENABLE(fakeroot,
[  --enable-fakeroot=<path to packaging directory>], FAKEROOT=$enableval)
AC_SUBST(FAKEROOT)

AC_ARG_ENABLE(securedir,
[  --enable-securedir=<path to location of PAMs> [default \$libdir/security]],
	SECUREDIR=$enableval, SECUREDIR=$libdir/security)
AC_SUBST(SECUREDIR)

AC_ARG_ENABLE(isadir,
[  --enable-isadir=<path to arch-specific module files> [default ../../\`basename \$libdir\`/security]],
ISA=$enableval,
ISA=../../`basename $libdir`/security)
unset mylibdirbase
AC_DEFINE_UNQUOTED(_PAM_ISA,"$ISA",[Define to the path, relative to SECUREDIR, where PAMs specific to this architecture can be found.])
AC_MSG_RESULT([Defining \$ISA to \"$ISA\".])

AC_ARG_ENABLE(sconfigdir,
[  --enable-sconfigdir=<path to module conf files> [default \$sysconfdir/security]],
	SCONFIGDIR=$enableval, SCONFIGDIR=$sysconfdir/security)
AC_SUBST(SCONFIGDIR)

AC_ARG_ENABLE(suplementedir,
[  --enable-suplementedir=<path to module helper binaries> [default \$sbindir]],
	SUPLEMENTED=$enableval, SUPLEMENTED=$sbindir)
AC_SUBST(SUPLEMENTED)

AC_ARG_ENABLE(includedir,
[  --enable-includedir=<path to include location> - where to put <security>],
	INCLUDEDIR=$enableval, INCLUDEDIR=/usr/include)
AC_SUBST(INCLUDEDIR)

AC_ARG_ENABLE(docdir,
[  --enable-docdir=<path to store documentation in - /usr/share/doc/pam>],
	DOCDIR=$enableval, DOCDIR=/usr/share/doc/pam)
AC_SUBST(DOCDIR)

AC_ARG_ENABLE(mandir,
[  --enable-mandir=<path to store manuals in - /usr/share/man>],
	MANDIR=$enableval, MANDIR=/usr/share/man)
AC_SUBST(MANDIR)

AC_ARG_ENABLE(pamlocking,
[  --enable-pamlocking      configure libpam to observe a global authentication lock],
	WITH_PAMLOCKING=yes ; AC_DEFINE(PAM_LOCKING) , WITH_PAMLOCKING=no)
AC_SUBST(WITH_PAMLOCKING)

AC_ARG_ENABLE(uglyhack,
[  --enable-uglyhack        configure libpam to try to honor old pam_strerror syntax],
	AC_DEFINE(UGLY_HACK_FOR_PRIOR_BEHAVIOR_SUPPORT))

AC_ARG_ENABLE(read-both-confs,
[  --enable-read-both-confs  read both /etc/pam.d and /etc/pam.conf files],
	AC_DEFINE(PAM_READ_BOTH_CONFS))
AC_SUBST(PAM_READ_BOTH_CONFS)

AC_ARG_ENABLE(static-libpam, [  --enable-static-libpam   build a libpam.a library],
	STATIC_LIBPAM=yes , STATIC_LIBPAM=no)
AC_SUBST(STATIC_LIBPAM)

AC_ARG_ENABLE(dynamic-libpam,
[  --disable-dynamic-libpam do not build a shared libpam library],
	DYNAMIC_LIBPAM=no, DYNAMIC_LIBPAM=yes)
AC_SUBST(DYNAMIC_LIBPAM)

DYNAMIC=-DPAM_DYNAMIC
AC_SUBST(DYNAMIC)

AC_ARG_ENABLE(static-modules,
[  --enable-static-modules  do not make the modules dynamically loadable],
	STATIC=-DPAM_STATIC)
AC_SUBST(STATIC)

AC_ARG_ENABLE(lckpwdf,
[  --disable-lckpwdf do not use the lckpwdf function],
	WITH_LCKPWDF=no, WITH_LCKPWDF=yes)
AC_SUBST(WITH_LCKPWDF)

AC_CHECK_HEADERS(paths.h)
AC_ARG_WITH(mailspool,
[  --with-mailspool         path to mail spool directory
                           [default _PATH_MAILDIR if defined in paths.h, otherwise /var/spool/mail]],
with_mailspool=${withval})
if test x$with_mailspool != x ; then
	pam_mail_spool="\"$with_mailspool\""
else
	AC_TRY_RUN([
#include <paths.h>
int main() {
#ifdef _PATH_MAILDIR
exit(0);
#else
exit(1);
#endif
}], pam_mail_spool="_PATH_MAILDIR",
pam_mail_spool="\"/var/spool/mail\"",
pam_mail_spool="\"/var/spool/mail\"")
fi
AC_DEFINE_UNQUOTED(PAM_PATH_MAILDIR, $pam_mail_spool)

dnl Checks for libraries.
AC_CHECK_LIB(c, __libc_sched_setscheduler, PAM_NEEDS_LIBC=, PAM_NEEDS_LIBC=-lc)
AC_SUBST(PAM_NEEDS_LIBC)

dnl Checks for the existence of lckpwdf in libc
AC_CHECK_LIB(c, lckpwdf, HAVE_LCKPWDF=yes, HAVE_LCKPWDF=no)
AC_SUBST(HAVE_LCKPWDF)

dnl Checks for the existence of libdl - on BSD and Tru64 its part of libc
AC_CHECK_LIB(dl, dlopen, LIBDL=-ldl)
AC_SUBST(LIBDL)

dnl
dnl At least on Solaris, the existing libcrack must be dynamic.
dnl Ought to introduce a check for this.
dnl
AC_CHECK_LIB(crack, FascistCheck, HAVE_LIBCRACK=yes ; AC_DEFINE(HAVE_LIBCRACK),
	HAVE_LIBCRACK=no)
AC_SUBST(HAVE_LIBCRACK)

AC_CHECK_LIB(crypt, crypt, HAVE_LIBCRYPT=yes ; AC_DEFINE(HAVE_LIBCRYPT),
	HAVE_LIBCRYPT=no)
AC_SUBST(HAVE_LIBCRYPT)
AC_CHECK_LIB(util, logwtmp, HAVE_LIBUTIL=yes ; AC_DEFINE(HAVE_LIBUTIL),
	HAVE_LIBUTIL=no)
AC_SUBST(HAVE_LIBUTIL)
AC_CHECK_LIB(ndbm, dbm_store, HAVE_LIBNDBM=yes ; AC_DEFINE(HAVE_LIBNDBM),
	HAVE_LIBNDBM=no)
AC_SUBST(HAVE_LIBNDBM)
AC_CHECK_LIB(db, dbm_store, HAVE_LIBDB=yes ; AC_DEFINE(HAVE_LIBDB),
	HAVE_LIBDB=no)
if test x$HAVE_LIBDB != xyes ; then
	AC_CHECK_LIB(db, db_create, HAVE_LIBDB=yes ; AC_DEFINE(HAVE_LIBDB),
	HAVE_LIBDB=no)
fi
AC_SUBST(HAVE_LIBDB)
AC_CHECK_LIB(fl, yylex, yyterminate, HAVE_LIBFL=yes ; AC_DEFINE(HAVE_LIBFL),
	HAVE_LIBFL=no)
AC_SUBST(HAVE_LIBFL)
AC_CHECK_LIB(nsl, yp_maplist, HAVE_LIBNSL=yes ; AC_DEFINE(HAVE_LIBNSL),
	HAVE_LIBNSL=no)
AC_SUBST(HAVE_LIBNSL)

if test $HAVE_LIBNSL = yes ; then
	pwdblibs="$pwdblibs -lnsl"
fi
AC_CHECK_LIB(pwdb, pwdb_db_name, HAVE_LIBPWDB=yes ; AC_DEFINE(HAVE_LIBPWDB),
	HAVE_LIBPWDB=no,$pwdblibs)
AC_SUBST(HAVE_LIBPWDB)
unset pwdblibs

AC_CHECK_LIB(fl, yywrap, HAVE_LIBFLEX=yes ; AC_DEFINE(HAVE_LIBFLEX),
	HAVE_LIBFLEX=no)
AC_SUBST(HAVE_LIBFLEX)
AC_CHECK_LIB(l, yywrap, HAVE_LIBLEX=yes ; AC_DEFINE(HAVE_LIBLEX),
	HAVE_LIBLEX=no)
AC_SUBST(HAVE_LIBLEX)

dnl Checks for header files.
AC_HEADER_DIRENT
AC_HEADER_STDC
AC_HEADER_SYS_WAIT
AC_CHECK_HEADERS(fcntl.h limits.h malloc.h sys/file.h sys/ioctl.h sys/time.h syslog.h termio.h unistd.h sys/fsuid.h)

dnl Linux wants features.h in some of the source files.
AC_CHECK_HEADERS(features.h)

dnl For module/pam_cracklib
AC_CHECK_HEADERS(crypt.h)

dnl For module/pam_userdb
AC_CHECK_HEADERS(ndbm.h db.h)
dnl I suspect the following two lines are a hack.
HAVE_NDBM_H=$ac_cv_header_ndbm_h
AC_SUBST(HAVE_NDBM_H)

dnl For module/pam_lastlog
AC_CHECK_HEADERS(lastlog.h utmp.h utmpx.h)

dnl This following rule should be made conditional upon HAVE_LIBCRYPT
dnl being found.

dnl Look for cracklib dictionary
AC_MSG_CHECKING(path to cracklib dictionary)
DICT_DIR_CANDIDATES="/usr/lib /usr/share/dict /usr/share/lib \
  /usr/local/lib /usr/local/share/lib /usr/share/cracklib"
DICT_FILE_CANDIDATES="pw_dict cracklib_dict"
CRACKLIB_DICTPATH=""
for d in $DICT_DIR_CANDIDATES ; do
      for f in $DICT_FILE_CANDIDATES ; do
              if test -r $d/$f.hwm ; then
                      CRACKLIB_DICTPATH=$d/$f
                      break 2
              elif test -r $d/dict/$f.hwm ; then
                      CRACKLIB_DICTPATH=$d/dict/$f
                      break 2
              fi
      done
done
if test -z "$CRACKLIB_DICTPATH" ; then
      AC_MSG_WARN([none found - pam_cracklib will not be built])
else
      AC_MSG_RESULT($CRACKLIB_DICTPATH)
fi
AC_SUBST(CRACKLIB_DICTPATH)

dnl Set FLAGS, linker options etc. depending on C compiler.
dnl gcc is tested and much preferred; others less so, if at all
dnl
dnl If compiling with gcc, linking is also supposed to be done with gcc
dnl
dnl For the moment, gcc is enforced above at "CC=gcc".
dnl
dnl There is an issue over _POSIX_SOURCE _BSD_SOURCE and _GNU_SOURCE .
dnl The original "Linux-PAM" had blanket inclusion.  But portability
dnl requires their default absence: if particular OSes require them,
dnl this should be done selectively.

GCC_WARNINGS="-Wall -Wwrite-strings \
	-Wpointer-arith -Wcast-qual -Wcast-align \
	-Wstrict-prototypes -Wmissing-prototypes \
	-Wnested-externs -Winline -Wshadow"

if test "$GCC" = yes; then
	CC=gcc				; AC_SUBST(CC)
### May need per-OS attention
### Example: -D_POSIX_SOURCE: needed on Linux but harms Solaris.
	case $OS in
	linux)
		OS_CFLAGS=
		LD_D="$CC -shared $LDFLAGS"
		WARNINGS="$GCC_WARNINGS"
		PIC="-fPIC"
		DYNTYPE=so
		LD=gcc
		LD_L="$CC -shared $LDFLAGS"
		RANLIB=:
		STRIP=strip
		CC_STATIC="-Xlinker -export-dynamic"
		;;
	sunos)
		OS_CFLAGS="-ansi -pedantic"
		LD_D="gcc -shared -Xlinker -x"
		WARNINGS="$GCC_WARNINGS"
		PIC="-fPIC"
		DYNTYPE=so
		LD=ld
		LD_L="$LD -x -shared"
		RANLIB=ranlib
		STRIP=strip
		CC_STATIC="-Xlinker -export-dynamic"
		;;
	aix)
		OS_CFLAGS=""
		DYNTYPE=lo
		LD=ld
		LD_L=ld -bexpall -bM:SRE -bnoentry
		LD_D="$LD_L"
		RANLIB=ranlib
		STRIP=strip
		;;
	*)
		OS_CFLAGS=""
		;;
	esac
else
###
### Non-gcc needs attention on per-OS basis
###
	case "$OS" in
	darwin)
# add some stuff here (see sourceforge bug 534205)
# DOCDIR=/System/Documentation/Administration/Libraries/PAM
# MANDIR=/usr/share/man
		;;
	solaris)
	    ### Support for Solaris-C
	    OS_CFLAGS=""
	    WARNINGS=""
	    PIC="-K pic"
	    LD=ld
	    LD_D="cc -z text -G -R."
	    LD_L="$LD_D"
	    RANLIB=ranlib
	    STRIP=strip
	    CC_STATIC=
	    ;;
	irix*)
	    OSRELEASE=`uname -r`
	    if test "$OSRELEASE" = 6.5; then
		OS_CFLAGS=""
		WARNINGS="-fullwarn"
		PIC=                    #PIC code is default for IRIX
		LD="cc -shared"         # modules friendly approach
		LD_D="cc -shared"
		LD_L="ld -G -z redlocsym"
		RANLIB=echo
		STRIP=strip
		CC_STATIC=
	    else
		echo "IRIX prior to 6.5 not allowed for"
		exit
	    fi
	    ;;
       *) echo "Native compiler on $OS is not yet supported"
               exit
	    ;;
       esac
fi

AC_SUBST(DYNTYPE)
AC_SUBST(OS_CFLAGS)
AC_SUBST(WARNINGS)
AC_SUBST(PIC)
AC_SUBST(LD)
AC_SUBST(LD_D)
AC_SUBST(LD_L)
AC_SUBST(RANLIB)
AC_SUBST(STRIP)
AC_SUBST(CC_STATIC)

dnl Checks for typedefs, structures, and compiler characteristics.
AC_C_BIGENDIAN
AC_C_CONST
AC_TYPE_UID_T
AC_TYPE_OFF_T
AC_TYPE_PID_T
AC_TYPE_SIZE_T
AC_HEADER_TIME
AC_STRUCT_TM

dnl Checks for library functions.
AC_TYPE_GETGROUPS
AC_PROG_GCC_TRADITIONAL
AC_FUNC_MEMCMP
AC_FUNC_VPRINTF
AC_CHECK_FUNCS(gethostname gettimeofday mkdir select strcspn strdup strerror strspn strstr strtol uname)

AC_CHECK_FUNCS(getpwnam_r getpwuid_r getgrnam_r getgrgid_r getspnam_r getgrouplist)

dnl Checks for programs/utilities
AC_CHECK_PROG(HAVE_SGML2TXT, sgml2txt, yes, no)
AC_CHECK_PROG(HAVE_SGML2HTML, sgml2html, yes, no)
AC_CHECK_PROG(HAVE_SGML2LATEX, sgml2latex, yes, no)
if test $HAVE_SGML2LATEX = "yes" ; then
  if sgml2latex -h | grep -e --paper | grep  ' -p ' > /dev/null ; then
    PSER="sgml2latex -o ps"
  else
    PSER="sgml2latex -p"
  fi
  AC_CHECK_PROG(HAVE_PS2PDF, ps2pdf, yes, no)
else
  AC_CHECK_PROG(HAVE_SGML2PS, sgml2ps, yes, no)
  if test $HAVE_SGML2PS = yes ; then
    PSER="sgml2ps"
  fi
fi
AC_SUBST(PSER)
AC_SUBST(PS2PDF)

dnl Files to be created from when we run configure
AC_OUTPUT(Make.Rules)