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scsh-0.6/configure.in

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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
dnl The -cckr (K&R) flag is for the IRIX C compiler. If this is left
dnl out, scheme48vm.c breaks because the rather pedantic SGI compiler
dnl decides that a char is not the same thing as an unsigned char.
dnl - Bryan O'Sullivan 3/94
dnl Note, this test didn't work correctly on Sun's which take -cckr as a
dnl synonym for -c. (HCC)
define(S48_CFLAG_CKR, [dnl
if test "z$GCC" = z; then
AC_MSG_CHECKING([-cckr])
oldCFLAGS="$CFLAGS"
CFLAGS="$CFLAGS -cckr"
AC_TRY_RUN([int main() { return 0;}],
[AC_MSG_RESULT(yes)],
[AC_MSG_RESULT(no)
CFLAGS="$oldCFLAGS"],
[AC_MSG_RESULT(no)
CFLAGS="$oldCFLAGS"])
fi
])dnl
dnl
define(S48_POSIX_LIBC, [dnl
echo checking for RISC/OS POSIX library lossage
if test -f /usr/posix/usr/lib/libc.a; then
LIBS="${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$GCC" = z; then
CFLAGS='-O'
else
CFLAGS='-O2'
fi
fi
])dnl
dnl
dnl Linux/ELF systems need the -rdynamic flag when linking so that
dnl dlsym() can find symbols in the executable.
dnl Note, on some Sun's, you can link with -rdynamic but the resulting
dnl a.out always core dumps.
define(S48_RDYNAMIC, [dnl
AC_MSG_CHECKING([link with -rdynamic])
AC_TRY_COMPILE([],
[#if defined(__linux__) && defined(__ELF__)
this must not compile
#endif],
[AC_MSG_RESULT(no)],
[AC_MSG_RESULT(yes)
LDFLAGS="$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)
if test $scsh_cv_elf = yes; then
LDFLAGS=-rdynamic
fi
rm -f conftest.c a.out
])
dnl -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
AC_DEFUN(SCSH_SIG_NRS, [
AC_MSG_RESULT([defining signal constants])
${CC} -o scsh_aux 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 -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
AC_INIT(c/scheme48vm.c)
AC_CONFIG_HEADER(c/sysdep.h)
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])
S48_CFLAG_CKR
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* )
dir=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* )
dir=ultrix
if test ${CC} = cc; then
LDFLAGS=-N
fi
;;
## HP 9000 series 700 and 800, running HP/UX
hppa*-hp-hpux* )
dir=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* )
dir=aix
LDFLAGS="-O"
if test ${CC} = gcc; then
LDFLAGS_AIX="-Xlinker -bexport:exportlist.aix"
else
LDFLAGS_AIX="-bexport:exportlist.aix"
fi
CFLAGS="-O"
AIX_P="exportlist.aix"
;;
## Linux
*-*-linux* )
dir=linux
# gross, but needed for some older a.out systems for 0.4.x
LIBS=-lc
SCSH_ELF
;;
## NetBSD and FreeBSD ( and maybe 386BSD also)
*-*-*bsd*|*-*-darwin* )
dir=bsd
SCSH_ELF
;;
## NeXT
*-next-* )
dir=next
CC="$CC -posix"
AC_DEFINE(HAVE_SIGACTION)
;;
## SGI IRIX
mips-sgi-irix* )
dir=irix
S48_CFLAG_CKR
INSTALL='$(srcdir)/install-sh'
;;
## SunOS
sparc*-sun-sunos* )
dir=sunos
;;
## Solaris - Sparc and i386
*-*-solaris* )
dir=solaris
AC_DEFINE(HAVE_NLIST)
;;
## NT - cygwin32
*-*-cygwin* )
AC_DEFINE(CYGWIN, 1, [Define to 1 on cygwin])
dir=cygwin32
EXEEXT=".exe"
;;
## Generic Configuration
* )
dir=generic
echo "WARNING: "
echo "WARNING: Using generic configuration."
echo "WARNING: See doc/porting.txt for more information."
echo "WARNING: "
;;
esac
(cd $srcdir/scsh && rm -rf machine && ln -s $dir machine)
AC_CHECK_LIB(m, main)
AC_CHECK_LIB(dl, main)
AC_CHECK_LIB(mld, main)
AC_CHECK_LIB(nsl, main)
AC_CHECK_LIB(gen, main)
AC_CHECK_LIB(socket, main)
AC_CHECK_LIB(sun, getpwnam)
AC_CHECK_LIB(c, crypt, [true], AC_CHECK_LIB(crypt, crypt))
dnl Solaris 2.3 seems to need -lelf for nlist(). (tnx Bryan O'Sullivan)
AC_CHECK_LIB(elf, main)
S48_POSIX_LIBC
AC_CONST
AC_RETSIGTYPE
AC_CHECK_HEADERS(libgen.h sys/timeb.h posix/time.h sys/select.h nlist.h)
AC_CHECK_HEADERS(sys/un.h)
AC_CHECK_HEADERS(crypt.h)
AC_CHECK_FUNCS(gettimeofday ftime nlist select setitimer sigaction vasprintf)
SCSH_SOCKLEN_T
AC_CHECK_FUNC(dlopen, [AC_DEFINE(HAVE_DLOPEN,
1, [Define to 1 if the interface to the dynamic linker exists])],
[AC_CHECK_FUNC(nlist, [AC_LIBOBJ([c/fake/libdl1])],
[AC_LIBOBJ([c/fake/libdl2])])])
AC_CHECK_FUNCS(socket chroot)
AC_CHECK_FUNC(strerror, AC_DEFINE(HAVE_STRERROR,
1, [Define to 1 if you have the strerror function]),
[AC_LIBOBJ([c/fake/strerror])])
AC_CHECK_FUNC(seteuid, [AC_DEFINE(HAVE_SETEUID,
1, [Define to 1 if you have the seteuid function])],
[AC_CHECK_FUNC(setreuid, [AC_DEFINE(HAVE_SETREUID,
1, [Define to 1 if you have the setreuid function])],
[AC_MSG_ERROR("Neither setegid nor setregid defined. Cannot continue.")])])
AC_CHECK_FUNC(setegid, [AC_DEFINE(HAVE_SETEGID,
1, [Define to 1 if you have the setegid function])],
[AC_CHECK_FUNC(setregid, [AC_DEFINE(HAVE_SETREGID,
1, [Define to 1 if you have the setregid function])],
[AC_MSG_ERROR("Neither setegid nor setregid defined. Cannot continue.")])])
AC_CHECK_MEMBER(struct nlist.n_name,
[AC_DEFINE(NLIST_HAS_N_NAME, 1, [Define to 1 if struct nlist.n_name exists])],,
[#include <nlist.h>])
AC_MSG_CHECKING([__NEXT__])
AC_TRY_LINK(,[
#ifdef __NeXT__
return 0;
#else
fail
#endif
],
CC="$CC -posix"
AC_DEFINE(HAVE_SIGACTION)
AC_MSG_RESULT([yes]),
AC_MSG_RESULT([no]))
S48_USCORE
S48_RDYNAMIC
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]))
SCSH_CONST_SYS_ERRLIST
CFLAGS1=${CFLAGS}
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)
AC_SUBST(LDFLAGS)
AC_SUBST(LDFLAGS_AIX)
AC_SUBST(LIBS)
AC_SUBST(TMPDIR)
AC_CONFIG_FILES(Makefile scsh/endian.scm scsh-config)
AC_CONFIG_COMMANDS([scsh-config+x],[chmod +x scsh-config])
AC_OUTPUT
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