131 lines
3.8 KiB
Plaintext
131 lines
3.8 KiB
Plaintext
|
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} conftest.c ${LIBS} &&
|
||
|
|
nm a.out | grep _fnord >/dev/null; then
|
||
|
|
AC_MSG_RESULT([yes])
|
||
|
|
AC_DEFINE(USCORE)
|
||
|
|
else
|
||
|
|
AC_MSG_RESULT([no])
|
||
|
|
fi
|
||
|
|
rm -f conftest.c a.out
|
||
|
|
])dnl
|
||
|
|
dnl
|
||
|
|
AC_INIT(c/scheme48vm.c)
|
||
|
|
AC_CONFIG_HEADER(c/sysdep.h)
|
||
|
|
S48_PROG_CC
|
||
|
|
AC_ISC_POSIX
|
||
|
|
dnl set the cross-compile flag before we try anything.
|
||
|
|
AC_TRY_RUN([int main() { return 0;}], [], [], [true])
|
||
|
|
S48_CFLAG_CKR
|
||
|
|
AC_PROG_INSTALL
|
||
|
|
AC_CHECK_LIB(m, main)
|
||
|
|
AC_CHECK_LIB(dl, main)
|
||
|
|
AC_CHECK_LIB(mld, main)
|
||
|
|
AC_CHECK_LIB(nsl, main)
|
||
|
|
AC_CHECK_LIB(gen, main)
|
||
|
|
AC_CHECK_LIB(socket, main)
|
||
|
|
AC_CHECK_LIB(sun, getpwnam)
|
||
|
|
dnl Solaris 2.3 seems to need -lelf for nlist(). (tnx Bryan O'Sullivan)
|
||
|
|
AC_CHECK_LIB(elf, main)
|
||
|
|
S48_POSIX_LIBC
|
||
|
|
AC_CONST
|
||
|
|
AC_RETSIGTYPE
|
||
|
|
AC_CHECK_HEADERS(libgen.h sys/timeb.h posix/time.h)
|
||
|
|
AC_CHECK_HEADERS(sys/select.h)
|
||
|
|
AC_CHECK_FUNCS(gettimeofday ftime nlist select setitimer sigaction)
|
||
|
|
AC_CHECK_FUNC(dlopen, AC_DEFINE(HAVE_DLOPEN),
|
||
|
|
AC_CHECK_FUNC(nlist, [LIBOBJS="$LIBOBJS c/fake/libdl1.c],
|
||
|
|
[LIBOBJS="$LIBOBJS c/fake/libdl2.c]))
|
||
|
|
AC_CHECK_FUNCS(socket chroot)
|
||
|
|
AC_CHECK_FUNC(strerror, AC_DEFINE(HAVE_STRERROR),
|
||
|
|
[LIBOBJS="$LIBOBJS c/fake/strerror.o"])
|
||
|
|
AC_MSG_CHECKING([n_name])
|
||
|
|
AC_TRY_LINK([#include <nlist.h>],
|
||
|
|
[struct nlist name_list;
|
||
|
|
name_list.n_name = "foo";],
|
||
|
|
AC_DEFINE(NLIST_HAS_N_NAME)
|
||
|
|
AC_MSG_RESULT([yes]),
|
||
|
|
AC_MSG_RESULT([no]))
|
||
|
|
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_SUBST(CFLAGS)
|
||
|
|
AC_SUBST(LIBOBJS)
|
||
|
|
AC_SUBST(LDFLAGS)
|
||
|
|
AC_OUTPUT(Makefile)
|