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dnl Process this file with autoconf to produce a configure script.
dnl
dnl We might want AC_WORDS_BIGENDIAN in the future.
dnl We might want AC_CHAR_UNSIGNED in the future.
dnl
define(S48_POSIX_LIBC, [dnl
echo checking for RISC/OS POSIX library lossage
if test -f /usr/posix/usr/lib/libc.a; then
LIBS="${LIBS} /usr/posix/usr/lib/libc.a"
fi
])dnl
dnl
dnl Run AC_PROG_CC, but don't accept it's changes to CFLAGS.
dnl For some insane reason, it sets CFLAGS to either `-O' or `-g -O' for gcc.
dnl I don't want the silly -g (because if you are using nlist, you can't strip
dnl the binary), I want -O2 for gcc and -O for other C compilers.
define(S48_PROG_CC, [dnl
oldCFLAGS="$CFLAGS"
AC_PROG_CC
if test "z$oldCFLAGS" = z; then
if test "z$GCC" = z; then
CFLAGS='-O'
else
CFLAGS='-O2'
fi
fi
])dnl
dnl
dnl Linux/ELF systems need the -rdynamic flag when linking so that
dnl dlsym() can find symbols in the executable.
dnl Note, on some Sun's, you can link with -rdynamic but the resulting
dnl a.out always core dumps.
define(S48_RDYNAMIC, [dnl
AC_MSG_CHECKING([link with -rdynamic])
AC_RUN_IFELSE(AC_LANG_PROGRAM([
#include <stdio.h>
#include <dlfcn.h>
int export_test = 0;],
[
#ifndef RTLD_LAZY
#define RTLD_LAZY 0
#endif
#ifndef RTLD_GLOBAL
#define RTLD_GLOBAL 0
#endif
void *dlhandle;
void *intp;
char *err;
dlhandle = dlopen(NULL, RTLD_LAZY | RTLD_GLOBAL);
if ((err = dlerror()) != NULL) {
return 1;
}
(void *)intp = dlsym(dlhandle, "export_test");
if ((err = dlerror()) != NULL) {
return 1;
}
return 0;
]),
[AC_MSG_RESULT(no)],
[AC_MSG_RESULT(yes)
LDFLAGS="$LDFLAGS -rdynamic"])
])dnl
dnl
define(S48_USCORE, [dnl
AC_MSG_CHECKING([underscore before symbols])
echo 'main() { return 0; } fnord() {}' >conftest.c
if ${CC} ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} -o a.out conftest.c ${LIBS} &&
nm a.out | grep _fnord >/dev/null; then
AC_MSG_RESULT([yes])
AC_DEFINE(USCORE, 1, [Define to 1 if symbols start with _])
else
AC_MSG_RESULT([no])
fi
rm -f conftest.c a.out
])dnl
dnl
dnl -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
AC_DEFUN(SCSH_TZNAME,[
AC_MSG_CHECKING(for tzname)
AC_CACHE_VAL(scsh_cv_tzname,[
AC_TRY_COMPILE([#include <time.h>],
[return (int) tzname;],
scsh_cv_tzname=yes,
scsh_cv_tzname=no)])
AC_MSG_RESULT($scsh_cv_tzname)
if test $scsh_cv_tzname = yes; then
AC_DEFINE(HAVE_TZNAME)
fi
])
dnl -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
AC_DEFUN(SCSH_ELF, [
AC_MSG_CHECKING(for ELF)
AC_CACHE_VAL(scsh_cv_elf,[
touch conftest.c
if ${CC} -v -o a.out conftest.c 2>&1 | grep -q __ELF__ ; then
scsh_cv_elf=yes
else
scsh_cv_elf=no
fi])
AC_MSG_RESULT($scsh_cv_elf)
rm -f conftest.c a.out
])
dnl -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
AC_DEFUN(SCSH_SIG_NRS, [
AC_MSG_RESULT([defining signal constants])
mkdir -p scsh
${CC} -o scsh_aux $srcdir/scsh/scsh_aux.c
AC_DEFINE_UNQUOTED(SIGNR_1, `./scsh_aux 1`, [scsh interrupt for signal 1])
AC_DEFINE_UNQUOTED(SIGNR_2, `./scsh_aux 2`, [scsh interrupt for signal 2])
AC_DEFINE_UNQUOTED(SIGNR_3, `./scsh_aux 3`, [scsh interrupt for signal 3])
AC_DEFINE_UNQUOTED(SIGNR_4, `./scsh_aux 4`, [scsh interrupt for signal 4])
AC_DEFINE_UNQUOTED(SIGNR_5, `./scsh_aux 5`, [scsh interrupt for signal 5])
AC_DEFINE_UNQUOTED(SIGNR_6, `./scsh_aux 6`, [scsh interrupt for signal 6])
AC_DEFINE_UNQUOTED(SIGNR_7, `./scsh_aux 7`, [scsh interrupt for signal 7])
AC_DEFINE_UNQUOTED(SIGNR_8, `./scsh_aux 8`, [scsh interrupt for signal 8])
AC_DEFINE_UNQUOTED(SIGNR_9, `./scsh_aux 9`, [scsh interrupt for signal 9])
AC_DEFINE_UNQUOTED(SIGNR_10, `./scsh_aux 10`, [scsh interrupt for signal 10])
AC_DEFINE_UNQUOTED(SIGNR_11, `./scsh_aux 11`, [scsh interrupt for signal 11])
AC_DEFINE_UNQUOTED(SIGNR_12, `./scsh_aux 12`, [scsh interrupt for signal 12])
AC_DEFINE_UNQUOTED(SIGNR_13, `./scsh_aux 13`, [scsh interrupt for signal 13])
AC_DEFINE_UNQUOTED(SIGNR_14, `./scsh_aux 14`, [scsh interrupt for signal 14])
AC_DEFINE_UNQUOTED(SIGNR_15, `./scsh_aux 15`, [scsh interrupt for signal 15])
AC_DEFINE_UNQUOTED(SIGNR_16, `./scsh_aux 16`, [scsh interrupt for signal 16])
AC_DEFINE_UNQUOTED(SIGNR_17, `./scsh_aux 17`, [scsh interrupt for signal 17])
AC_DEFINE_UNQUOTED(SIGNR_18, `./scsh_aux 18`, [scsh interrupt for signal 18])
AC_DEFINE_UNQUOTED(SIGNR_19, `./scsh_aux 19`, [scsh interrupt for signal 19])
AC_DEFINE_UNQUOTED(SIGNR_20, `./scsh_aux 20`, [scsh interrupt for signal 20])
AC_DEFINE_UNQUOTED(SIGNR_21, `./scsh_aux 21`, [scsh interrupt for signal 21])
AC_DEFINE_UNQUOTED(SIGNR_22, `./scsh_aux 22`, [scsh interrupt for signal 22])
AC_DEFINE_UNQUOTED(SIGNR_23, `./scsh_aux 23`, [scsh interrupt for signal 23])
AC_DEFINE_UNQUOTED(SIGNR_24, `./scsh_aux 24`, [scsh interrupt for signal 24])
AC_DEFINE_UNQUOTED(SIGNR_25, `./scsh_aux 25`, [scsh interrupt for signal 25])
AC_DEFINE_UNQUOTED(SIGNR_26, `./scsh_aux 26`, [scsh interrupt for signal 26])
AC_DEFINE_UNQUOTED(SIGNR_27, `./scsh_aux 27`, [scsh interrupt for signal 27])
AC_DEFINE_UNQUOTED(SIGNR_28, `./scsh_aux 28`, [scsh interrupt for signal 28])
AC_DEFINE_UNQUOTED(SIGNR_29, `./scsh_aux 29`, [scsh interrupt for signal 29])
AC_DEFINE_UNQUOTED(SIGNR_30, `./scsh_aux 30`, [scsh interrupt for signal 30])
AC_DEFINE_UNQUOTED(SIGNR_31, `./scsh_aux 31`, [scsh interrupt for signal 31])
rm -f scsh_aux scsh_aux.exe
])
dnl -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
AC_DEFUN(SCSH_LINUX_STATIC_DEBUG, [
case "$host" in
*-*-linux* )
AC_MSG_CHECKING(for broken Linux that needs -static with -g)
AC_CACHE_VAL(scsh_cv_linux_static_debug,[
AC_TRY_LINK([],
[],
scsh_cv_linux_static_debug=no,
scsh_cv_linux_static_debug=yes)])
AC_MSG_RESULT($scsh_cv_linux_static_debug)
if test $scsh_cv_linux_static_debug = yes; then
LDFLAGS="-static ${LDFLAGS}"
fi
;;
esac
])
dnl -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
AC_DEFUN(SCSH_CONST_SYS_ERRLIST,[
AC_MSG_CHECKING(for const sys_errlist)
AC_CACHE_VAL(scsh_cv_const_sys_errlist,[
AC_TRY_COMPILE([#include <errno.h>
#include <unistd.h>],
[const extern char *sys_errlist[];],
scsh_cv_const_sys_errlist=yes,
scsh_cv_const_sys_errlist=no)])
AC_MSG_RESULT($scsh_cv_const_sys_errlist)
if test $scsh_cv_const_sys_errlist = yes; then
AC_DEFINE(HAVE_CONST_SYS_ERRLIST, 1, [const char* sys_errlist])
fi
])
dnl -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
AC_DEFUN(SCSH_SOCKLEN_T,[
AC_MSG_CHECKING(for socklen_t)
AC_TRY_COMPILE([#include <sys/socket.h>
socklen_t x;
],[],[AC_MSG_RESULT(yes)],[
AC_TRY_COMPILE([#include <sys/socket.h>
int accept (int, struct sockaddr *, size_t *);
],[],[
AC_MSG_RESULT(size_t)
AC_DEFINE(socklen_t,
size_t, [Define to type of socklen_t])], [
AC_MSG_RESULT(int)
AC_DEFINE(socklen_t,int)])])
])
dnl -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
define(SCSH_CREATE_BUILD_DIRS, [dnl
mkdir -p scsh/machine
mkdir -p scsh/rx
mkdir -p c/srfi
mkdir -p c/unix
])dnl
dnl -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
AC_INIT(c/scheme48vm.c)
AC_CONFIG_HEADER(c/sysdep.h)
SCSH_CREATE_BUILD_DIRS
AC_CANONICAL_HOST
S48_PROG_CC
SCSH_SIG_NRS
AC_ISC_POSIX
SCSH_LINUX_STATIC_DEBUG
dnl set the cross-compile flag before we try anything.
AC_TRY_RUN([int main() { return 0;}], [], [], [true])
AC_PROG_INSTALL
AC_PROG_RANLIB
AC_C_CONST
AC_C_BIGENDIAN
if test $ac_cv_c_bigendian = no ; then
ENDIAN=little
else
ENDIAN=big
fi
AR=${AR-"ar cq"}
TMPDIR=${TMPDIR-"/var/tmp"}
case "$host" in
## CX/UX
m88k-harris-cxux* )
machine=cxux
CC="cc -Xa"
CFLAGS="-O"
LDFLAGS="-O -Wl,-Bexport"
AC_DEFINE(HAVE_HARRIS, 1, [Define to 1 on m88k-harris-cxux])
;;
## DEC Ultrix
mips-dec-ultrix* )
AC_MSG_ERROR("Ultrix is not supported.")
;;
## HP 9000 series 700 and 800, running HP/UX
hppa*-hp-hpux* )
machine=hpux
LDFLAGS="-Wl,-E"
if test ${CC} = cc; then
CFLAGS="-Ae -O +Obb1800"
fi
AC_DEFINE(_HPUX_SOURCE, 1, [Define to 1 to compile on HP/UX])
AC_DEFINE(hpux, 1, [Define to 1 on HP/UX])
AC_DEFINE(_XOPEN_SOURCE_EXTENDED, 1, [Define to 1 to compile on HP/UX])
;;
## IBM AIX
rs6000-ibm-aix*|powerpc-ibm-aix* )
machine=aix
LDFLAGS="-O"
if test ${CC} = gcc; then
LDFLAGS_AIX="-Xlinker -bexport:exportlist.aix"
else
LDFLAGS_AIX="-bexport:exportlist.aix"
fi
CFLAGS="-O"
AIX_P="exportlist.aix"
;;
## Linux
*-*-linux* )
machine=linux
# gross, but needed for some older a.out systems for 0.4.x
LIBS=-lc
SCSH_ELF
;;
## NetBSD and FreeBSD ( and maybe 386BSD also)
*-*-*bsd*|*-*-darwin* )
machine=bsd
SCSH_ELF
;;
## NeXT
*-next-* )
machine=next
CC="$CC -posix"
AC_DEFINE(HAVE_SIGACTION)
;;
## SGI IRIX
mips-sgi-irix* )
machine=irix
S48_CFLAG_CKR
INSTALL='$(srcdir)/install-sh'
;;
## SunOS
sparc*-sun-sunos* )
machine=sunos
;;
## Solaris - Sparc and i386
*-*-solaris* )
machine=solaris
AC_DEFINE(HAVE_NLIST)
;;
## NT - cygwin32
*-*-cygwin* )
AC_DEFINE(CYGWIN, 1, [Define to 1 on cygwin])
machine=cygwin32
EXEEXT=".exe"
;;
## The GNU Hurd
*-*-gnu* )
machine=gnu
SCSH_ELF
;;
## Generic Configuration
* )
machine=generic
echo "WARNING: "
echo "WARNING: Using generic configuration."
echo "WARNING: See doc/porting.txt for more information."
echo "WARNING: "
;;
esac
(mkdir -p ./scsh/$machine scsh/rx c/unix c/srfi)
AC_CHECK_LIB(m, main)
AC_CHECK_LIB(dl, main)
AC_CHECK_LIB(mld, main)
AC_CHECK_LIB(nsl, main)
AC_CHECK_LIB(gen, main)
AC_CHECK_LIB(socket, main)
AC_CHECK_LIB(sun, getpwnam)
AC_CHECK_LIB(c, crypt, [true], AC_CHECK_LIB(crypt, crypt))
dnl Solaris 2.3 seems to need -lelf for nlist(). (tnx Bryan O'Sullivan)
AC_CHECK_LIB(elf, main)
S48_POSIX_LIBC
AC_CONST
AC_RETSIGTYPE
AC_CHECK_HEADERS(libgen.h sys/timeb.h posix/time.h sys/select.h nlist.h)
AC_CHECK_HEADERS(sys/un.h)
AC_CHECK_HEADERS(crypt.h)
AC_CHECK_FUNCS(gettimeofday ftime nlist select setitimer sigaction vasprintf)
SCSH_SOCKLEN_T
AC_CHECK_FUNC(dlopen, [AC_DEFINE(HAVE_DLOPEN,
1, [Define to 1 if the interface to the dynamic linker exists])
have_dlopen="yes"],
[AC_CHECK_FUNC(nlist, [AC_LIBOBJ([c/fake/libdl1])],
[AC_LIBOBJ([c/fake/libdl2])])
have_dlopen="no"])
AC_CHECK_FUNCS(socket chroot)
AC_CHECK_FUNC(strerror, AC_DEFINE(HAVE_STRERROR,
1, [Define to 1 if you have the strerror function]),
[AC_LIBOBJ([c/fake/strerror])])
AC_CHECK_FUNC(seteuid, [AC_DEFINE(HAVE_SETEUID,
1, [Define to 1 if you have the seteuid function])],
[AC_CHECK_FUNC(setreuid, [AC_DEFINE(HAVE_SETREUID,
1, [Define to 1 if you have the setreuid function])],
[AC_MSG_ERROR("Neither setegid nor setregid defined. Cannot continue.")])])
AC_CHECK_FUNC(setegid, [AC_DEFINE(HAVE_SETEGID,
1, [Define to 1 if you have the setegid function])],
[AC_CHECK_FUNC(setregid, [AC_DEFINE(HAVE_SETREGID,
1, [Define to 1 if you have the setregid function])],
[AC_MSG_ERROR("Neither setegid nor setregid defined. Cannot continue.")])])
AC_CHECK_MEMBER(struct nlist.n_name,
[AC_DEFINE(NLIST_HAS_N_NAME, 1, [Define to 1 if struct nlist.n_name exists])],,
[#include <nlist.h>])
AC_MSG_CHECKING([__NEXT__])
AC_TRY_LINK(,[
#ifdef __NeXT__
return 0;
#else
fail
#endif
],
CC="$CC -posix"
AC_DEFINE(HAVE_SIGACTION)
AC_MSG_RESULT([yes]),
AC_MSG_RESULT([no]))
S48_USCORE
if test $have_dlopen = yes; then
S48_RDYNAMIC
fi
AC_STRUCT_TIMEZONE
AC_CHECK_MEMBER(struct tm.tm_gmtoff,
AC_DEFINE(HAVE_GMTOFF, 1, [Define to 1 if struct tm has member tm_gmtoff]))
dnl ----------------------------------------------------------------
dnl Check for pty support
dnl ----------------------------------------------------------------
dnl There is no "standard" pty allocation method. Every system is different.
dnl getpt() is the preferred pty allocation method on glibc systems.
dnl _getpty() is the preferred pty allocation method on SGI systems.
dnl grantpt(), unlockpt(), ptsname() are defined by Unix98.
AC_CHECK_FUNCS(getpt _getpty grantpt unlockpt ptsname killpg tcgetpgrp)
dnl openpty() is the preferred pty allocation method on BSD and Tru64 systems.
dnl openpty() might be declared in:
dnl - pty.h (Tru64 or Linux)
dnl - libutil.h (FreeBSD)
dnl - util.h (NetBSD)
AC_CHECK_FUNC(openpty, have_openpty=yes, [
AC_CHECK_LIB(util, openpty, have_openpty=yes need_libutil=yes)])
if test "$have_openpty" = "yes"; then
AC_DEFINE(HAVE_OPENPTY, 1, [Define to 1 if you have the 'openpty' function])
AC_CHECK_HEADERS(libutil.h util.h, break)
if test "$need_libutil" = "yes"; then
LIBS="${LIBS} -lutil"
fi
fi
dnl Check for system-specific pty header files
dnl Often the TIOCSIG* symbols are hiding there.
case "$opsys" in
dnl HPUX pty.h #defines TRUE and FALSE, so just use ptyio.h there.
hpux*) AC_CHECK_HEADERS(sys/ptyio.h) ;;
*) AC_CHECK_HEADERS(pty.h)
test "$ac_cv_header_pty_h" = "no" && AC_CHECK_HEADERS(sys/pty.h)
;;
esac
dnl Check for System V STREAM support functions.
AC_CHECK_HEADERS(stropts.h)
AC_CHECK_FUNCS(isastream)
SCSH_CONST_SYS_ERRLIST
CFLAGS1=${CFLAGS}
lib_dirs_list='("${prefix}/lib/scsh/modules" "${prefix}/lib/scsh/modules/0.6")'
AC_ARG_WITH(lib-dirs-list,
AC_HELP_STRING([--with-lib-dirs-list],
[list of default scsh library directories (default ("$prefix/lib/scsh/modules" "${prefix}/lib/scsh/modules/0.6"))]),
lib_dirs_list="$withval")
AC_SUBST(lib_dirs_list)
AC_SUBST(CFLAGS)
AC_SUBST(LDFLAGS)
AC_SUBST(AIX_P)
AC_SUBST(AR)
AC_SUBST(CC)
AC_SUBST(CFLAGS)
AC_SUBST(CFLAGS1)
AC_SUBST(EXEEXT)
AC_SUBST(ENDIAN) #does currently not occur
AC_SUBST(LDFLAGS)
AC_SUBST(LDFLAGS_AIX)
AC_SUBST(LIBS)
AC_SUBST(TMPDIR)
AC_SUBST(machine)
AC_CONFIG_FILES(Makefile scsh-config)
AC_CONFIG_COMMANDS([scsh-config+x],[chmod +x scsh-config])
AC_OUTPUT
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