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