AC_INIT(src/main.c) AC_PREREQ(2.50) AC_CONFIG_AUX_DIR(autotools) AC_CANONICAL_SYSTEM AM_INIT_AUTOMAKE(elk, 3.99.0) AM_CONFIG_HEADER(config.h) AC_PROG_CC AM_PROG_CC_C_O AC_PROG_LIBTOOL AC_STDC_HEADERS AC_C_CONST AC_C_INLINE AC_TYPE_SIZE_T # $system should contain the name of this file. It may be used by some # of the build scripts to do things that are specific to one single # type of system. AC_DEFINE(SYSTEMTYPE, "i486-linux-gcc", [FIXME HARD]) # Does the system support the vprintf library function? If not, # availability of the (non-portable) _doprnt function is assumed. AC_CHECK_FUNCS(vprintf) # Does the directory(3) library follow the POSIX conventions (i.e. # requires the include file and uses "struct dirent")? # If not, the (obsolete) BSD-style interface with and # "struct direct" is assumed. AC_CHECK_FUNCS(dirent) # Does the system have the random/srandom library functions? If not, # rand/srand will be used instead. AC_CHECK_FUNCS(random) # Does the system have the index library function? If not, strchr # will be used. dnl FIXME # Does the system have the bcopy, bzero, and bcmp library functions? # If not, memcpy/memset/memcmp will be used. dnl FIXME # Does using the access system call require to be included? # (Look into the manual page for access if in doubt.) AC_CHECK_HEADERS(unistd.h) # If the FIONREAD ioctl command is defined, which file must be included? AC_DEFINE(FIONREAD_H, , [FIXME HARD]) # What is the name of the a.out include file? AC_DEFINE(AOUT_H, , [FIXME HARD]) # If getdtablesize() is available to determine the maximum number of open # files per process, set getdtablesize=yes. # Alternatively, if POSIX-style sysconf() can be called with _SC_OPEN_MAX, # set sysconf_open_max=yes. # If neither is set to "yes", an educated guess will be made. AC_CHECK_FUNCS(getdtablesize) AC_MSG_CHECKING(for _SC_OPEN_MAX in unistd.h) AC_EGREP_HEADER(_SC_OPEN_MAX, unistd.h, [ AC_MSG_RESULT(yes) AC_DEFINE(SC_OPEN_MAX_IN_UNISTD_H, 1, Define if defines _SC_OPEN_MAX) ],[ AC_MSG_RESULT(no) ]) # If POSIX-style pathconf() can be invoked with _PC_PATH_MAX to determine # the maximum pathname length, set pathconf_path_max=yes. AC_MSG_CHECKING(for _PC_PATH_MAX in unistd.h) AC_EGREP_HEADER(_PC_PATH_MAX, unistd.h, [ AC_MSG_RESULT(yes) AC_DEFINE(PC_PATH_MAX_IN_UNISTD_H, 1, Define if defines _PC_PATH_MAX) ],[ AC_MSG_RESULT(no) ]) # If the system page size can be determined by calling getpagesize() # set getpagesize=yes. # Alternatively, if sysconf() can be invoked with _SC_PAGESIZE, set # sysconf_pagesize=yes. # These two variables are only required if the generational garbage # collector is used. AC_CHECK_FUNCS(getpagesize) AC_MSG_CHECKING(for _SC_PAGESIZE in unistd.h) AC_EGREP_HEADER(_SC_PAGESIZE, unistd.h, [ AC_MSG_RESULT(yes) AC_DEFINE(SC_PAGESIZE_IN_UNISTD_H, 1, Define if defines _SC_PAGESIZE) ],[ AC_MSG_RESULT(no) ]) # Set reliable_signals=bsd if your system supports BSD-style reliable # signals (has sigblock and related functions); set reliable_signals=posix # for POSIX-style signals (sigprocmask, sigsets); otherwise old V7/SysV # signal semantics are assumed. if false; then AC_DEFINE(BSD_SIGNALS, 1, [FIXME HARD]) fi AC_DEFINE(POSIX_SIGNALS, 1, [FIXME HARD]) # To support dynamic loading of object files and "dump", the system's # a.out format has to be known. Choose one of the following: # # coff ecoff xcoff elf macho hp9k convex # # Other values of "aout_format" are interpreted as BSD-style a.out format. if false; then AC_DEFINE(COFF, 1, [FIXME HARD]) fi if false; then AC_DEFINE(ECOFF, 1, [FIXME HARD]) fi if false; then AC_DEFINE(XCOFF, 1, [FIXME HARD]) fi AC_DEFINE(ELF, 1, [FIXME HARD]) if false; then AC_DEFINE(MACH_O, 1, [FIXME HARD]) fi if false; then AC_DEFINE(CONVEX_AOUT, 1, [FIXME HARD]) fi if false; then AC_DEFINE(HP9K, 1, [FIXME HARD]) fi # Which mechanism should be used to dynamically load object files? # Possible values currently are: # # ld BSD-style incremental loading based on ld -A # rld NeXT-style rld_load() # shl HP-UX shl_load() # dl SysVR4/SunOS5 dlopen() # # Leave load_obj empty if dynamic loading is not supported. AC_DEFINE(CAN_LOAD_OBJ, 1, [FIXME HARD]) AC_DEFINE(CAN_LOAD_LIB, 1, [FIXME HARD]) if false; then AC_DEFINE(USE_LD, 1, [FIXME HARD]) fi if false; then AC_DEFINE(USE_RLD, 1, [FIXME HARD]) fi if false; then AC_DEFINE(USE_SHL, 1, [FIXME HARD]) fi AC_DEFINE(USE_DLOPEN, 1, [FIXME HARD]) # Linker options to produce a shared object from a .o file. # Only used if load_obj=dl. AC_DEFINE(LDFLAGS_SHARED, "-shared", [FIXME HARD]) # The libraries against which dynamically loaded files are resolved # at the time they are loaded. AC_DEFINE(LOAD_LIBRARIES, "", [FIXME HARD]) # Additional flags to be passed to the linker for an incremental # linker run (ld -A). Ignored unless load_obj=ld. AC_DEFINE(INC_LDFLAGS, "-x -static", [FIXME HARD]) # Systems with "aout_format=ecoff" may require a call to the cacheflush # system call after an object file has been loaded. Which include file # has to be included in this case? AC_DEFINE(CACHECTL_H, , [FIXME HARD]) # Is the ANSI-C atexit function supported to register an exit handler? # If not, the exit library function will be redefined and will end in # a call to _exit. AC_CHECK_FUNCS(atexit) # Do the names of external functions in the symbol table always begin # with a special character (such as underline)? If so, syms_begin_with # should hold this character, otherwise leave it empty. if false; then AC_DEFINE(SYMS_BEGIN_WITH, 1, [FIXME HARD]) fi # The symbol prefixes of extension initialization and finalization # functions (without the initial $syms_begin_with). Do not change # these unless the compiler or linker restricts the length of symbols! AC_DEFINE(INIT_PREFIX, "elk_init_", [FIXME HARD]) AC_DEFINE(FINIT_PREFIX, "elk_finit_", [FIXME HARD]) # Is the "dump" function supported? AC_DEFINE(CAN_DUMP, 1, [FIXME HARD]) # Is the fchmod system call broken or unavailable? if false; then AC_DEFINE(FCHMOD_BROKEN, 1, [FIXME HARD]) fi # These four variables are only relevant if the system has the BSD-style # a.out format. # segment_size is the segment size of the system's memory management # unit, i.e. the number to a multiple of which the size of an a.out # segment (e.g. .text) is rounded up. # file_text_start is the file offset at which the text segment starts # in an a.out file. # mem_text_start is the starting address of the text segment in memory. # text_length_adj must be set to "sizeof (struct exec)" if the length of # the text segment stored in the a.out header includes the a.out header # itself. AC_DEFINE(SEG_SIZ, 1024, [FIXME HARD]) AC_DEFINE(FILE_TEXT_START, N_TXTOFF(hdr), [FIXME HARD]) AC_DEFINE(MEM_TEXT_START, 0, [FIXME HARD]) AC_DEFINE(TEXT_LENGTH_ADJ, 0, [FIXME HARD]) # Only relevant if "aout_format=coff": the system's pagesize. AC_DEFINE(COFF_PAGESIZE, 4096, [FIXME HARD]) # Only relevant if "aout_format=hp9k" and "load_obj=shl" AC_DEFINE(HPSHLIB, 1, [FIXME HARD]) # Print debug messages when dumping AC_DEFINE(DEBUG_DUMP, 1, [FIXME HARD]) # Is the "termio" terminal interface supported by the system? If not, # BSD-style tty handling will be used. AC_DEFINE(TERMIO, 1, [FIXME HARD]) # flush_stdio and flush_tty indicate how clear-input/output-port can # flush (purge) a FILE pointer and a TTY file descriptor. # Possible values of flush_stdio: # bsd assume old BSD-style FILE* (with _cnt, _ptr, _base) # fpurge use 4.4BSD-style fpurge stdio library function # Possible values of flush_tty: # tiocflush use TIOCFLUSH ioctl from # tcflsh use TCFLSH ioctl from # Leave the variable(s) empty if flushing is not supported. if false; then AC_DEFINE(FLUSH_BSD, 1, [FIXME HARD]) fi if false; then AC_DEFINE(FLUSH_FPURGE, 1, [FIXME HARD]) fi if false; then AC_DEFINE(FLUSH_TIOCFLUSH, 1, [FIXME HARD]) fi AC_DEFINE(FLUSH_TCFLSH, 1, [FIXME HARD]) # The interpreter uses the getrlimit function to determine the maximum # stack size of the running program. If this function is not supported, # set max_stack_size to a (fixed) maximum stack size (in bytes). if false; then AC_DEFINE(MAX_STACK_SIZE, 1, [FIXME HARD]) fi # Is the mprotect system call supported? The generational garbage collector # requires mprotect to implement incremental GC. $mprotect is ignored if # generational_gc is set to "no" in the site file. Set mprotect=mmap if # mprotect is supported, but only for mmap()ed memory. AC_CHECK_FUNCS(mprotect) if false; then AC_DEFINE(MPROTECT_SIG, 1, [FIXME HARD]) fi if false; then AC_DEFINE(MPROTECT_MMAP, 1, [FIXME HARD]) fi # How can a SIGSEGV or SIGBUS signal handler find out the address of # the faulting memory reference? This variable is only used if # $mprotect is "yes" or "mmap". Possible values are: # # siginfo handler is called with siginfo_t structure (enabled # by a call to sigaction) # sigcontext address is in the sigcontext structure (3rd arg, sc_badvaddr) # arg4 address is delivered to handler as argument #4 # aix use an AIX-specific hack to get hold of the bad address # hpux use a HP-UX-specific hack if false; then AC_DEFINE(SIGSEGV_SIGINFO, 1, [FIXME HARD]) fi if false; then AC_DEFINE(SIGSEGV_SIGCONTEXT, 1, [FIXME HARD]) fi if false; then AC_DEFINE(SIGSEGV_ARG4, 1, [FIXME HARD]) fi if false; then AC_DEFINE(SIGSEGV_AIX, 1, [FIXME HARD]) fi if false; then AC_DEFINE(SIGSEGV_HPUX, 1, [FIXME HARD]) fi # Does the system support the alloca library function, and does this # function actually extend the stack? If in doubt, extract alloca.o # from the C library and check if it contains the symbols malloc and free. # If this is the case, forget it. AC_DEFINE(USE_ALLOCA, 1, [FIXME HARD]) # Must be included to use alloca? Is "#pragma alloca" required? AC_CHECK_HEADERS(alloca.h) if false; then AC_DEFINE(PRAGMA_ALLOCA, 1, [FIXME HARD]) fi # Does the system (or compiler) require certain objects (e.g. doubles) # to be aligned at 8-byte boundaries? If not, 4-byte alignment will # be assumed. if false; then AC_DEFINE(ALIGN_8BYTE, 1, [FIXME HARD]) fi # The name of the linker. This is usually just "ld", or /usr/ccs/bin/ld # in SVR4-based systems. AC_DEFINE(LD_NAME, "ld", [FIXME HARD]) # Does your C preprocessor support the ANSI-C ## operator, although # __STDC__ is not defined? AC_DEFINE(ANSI_CPP, 1, [FIXME HARD]) # The UNIX extension likes to know which of the following system calls, # library functions, and include files are supported by the system. AC_CHECK_HEADERS(utime.h) AC_CHECK_FUNCS(waitpid wait3 wait4 vfork uname gethostname gettimeofday ftime) AC_CHECK_FUNCS(mktemp tmpnam tempnam getcwd getwd rename regcomp) # Element type of the gidset argument of getgroups(); typically int # or gid_t. Only needed by the UNIX extension. AC_DEFINE(GETGROUPS_TYPE, gid_t, [FIXME HARD]) # Do you want to use the generational garbage collector? If not, the # stop-and-copy garbage collector will be used. AC_DEFINE(GENERATIONAL_GC, 1, [FIXME HARD]) # The default heap size of the Scheme interpreter in KBytes (if the # stop-and-copy garbage collector is used). AC_DEFINE(HEAP_SIZE, 1024, [FIXME HARD]) # The directory where all files are installed by running "make install". # The subdirectories bin, lib, include, and runtime (with various # subdirectories) are created automatically, but $install_dir isn't. # Make sure $install_dir doesn't point to the top of the source tree # (i.e. choose a subdirectory or a directory outside the source tree). AC_DEFINE(SCM_DIR, "/usr/share/elk", [FIXME HARD]) AC_DEFINE(OBJ_DIR, "/usr/lib/elk", [FIXME HARD]) #define FIND_AOUT defined(USE_LD) || defined(CAN_DUMP) || defined(INIT_OBJECTS) AC_DEFINE(FIND_AOUT, 1, [FIXME HARD]) dnl dnl Check for available warning flags dnl CFLAGS_save="${CFLAGS}" AC_CACHE_CHECK([if \$CC accepts -Wall], [ac_cv_c_Wall], [CFLAGS="-Wall ${CFLAGS_save}" AC_TRY_COMPILE([],,ac_cv_c_Wall=yes, ac_cv_c_Wall=no)]) if test "x${ac_cv_c_Wall}" != "xno"; then CFLAGS_save="-Wall ${CFLAGS_save}" fi AC_CACHE_CHECK([if \$CC accepts -Wsign-compare], [ac_cv_c_Wsign_compare], [CFLAGS="-Wsign-compare ${CFLAGS_save}" AC_TRY_COMPILE([],,ac_cv_c_Wsign_compare=yes, ac_cv_c_Wsign_compare=no)]) if test "x${ac_cv_c_Wsign_compare}" != "xno"; then CFLAGS_save="-Wsign-compare ${CFLAGS_save}" fi CFLAGS="${CFLAGS_save}" INCLUDES="${INCLUDES} -I\$(top_srcdir)/include" X_CFLAGS="-I/usr/X11R6/include" X_LIBS="-L/usr/X11R6/lib -lX11" XAW_CFLAGS="-I/usr/X11R6/include" XAW_LIBS="-L/usr/X11R6/lib -lXaw -lXmu -lXt -lSM -lICE -lXext -lX11" XM_CFLAGS="-I/usr/X11R6/include -I/usr/include/Xm" XM_LIBS="-L/usr/X11R6/lib -lXm -lXmu -lXt -lSM -lICE -lXext -lX11" dnl Export variables AC_SUBST(INCLUDES) AC_SUBST(X_CFLAGS) AC_SUBST(X_LIBS) AC_SUBST(XAW_CFLAGS) AC_SUBST(XAW_LIBS) AC_SUBST(XM_CFLAGS) AC_SUBST(XM_LIBS) AC_OUTPUT([ Makefile autotools/Makefile debian/Makefile doc/Makefile doc/bitstring/Makefile doc/cprog/Makefile doc/kernel/Makefile doc/man/Makefile doc/oops/Makefile doc/record/Makefile doc/regexp/Makefile doc/unix/Makefile doc/usenix/Makefile doc/util/Makefile doc/xlib/Makefile doc/xt/Makefile examples/Makefile include/Makefile lib/Makefile lib/misc/Makefile lib/unix/Makefile lib/xaw/Makefile lib/xlib/Makefile lib/xm/Makefile lib/xt/Makefile scm/Makefile scm/slib.scm src/Makefile util/Makefile ])