#! /bin/bash -norc dnl This file is an input file used by the GNU "autoconf" program to dnl generate the file "configure", which is run during Tcl installation dnl to configure the system for the local environment. AC_INIT(../generic/tcl.h) # RCS: @(#) $Id: configure.in,v 1.70 2001/07/11 00:59:31 mdejong Exp $ TCL_VERSION=8.4 TCL_MAJOR_VERSION=8 TCL_MINOR_VERSION=4 TCL_PATCH_LEVEL="a3" VERSION=${TCL_VERSION} #------------------------------------------------------------------------ # Handle the --prefix=... option #------------------------------------------------------------------------ if test "${prefix}" = "NONE"; then prefix=/usr/local fi if test "${exec_prefix}" = "NONE"; then exec_prefix=$prefix fi TCL_SRC_DIR=`cd $srcdir/..; pwd` #------------------------------------------------------------------------ # Standard compiler checks #------------------------------------------------------------------------ # If the user did not set CFLAGS, set it now to keep # the AC_PROG_CC macro from adding "-g -O2". if test "${CFLAGS+set}" != "set" ; then CFLAGS="" fi AC_PROG_CC AC_PROG_RANLIB AC_HAVE_HEADERS(unistd.h limits.h) #------------------------------------------------------------------------ # Threads support #------------------------------------------------------------------------ SC_ENABLE_THREADS #------------------------------------------------------------------------ # If we're using GCC, see if the compiler understands -pipe. If so, use it. # It makes compiling go faster. (This is only a performance feature.) #------------------------------------------------------------------------ if test -z "$no_pipe"; then if test -n "$GCC"; then AC_MSG_CHECKING([if the compiler understands -pipe]) OLDCC="$CC" CC="$CC -pipe" AC_TRY_COMPILE(,, AC_MSG_RESULT(yes), CC="$OLDCC" AC_MSG_RESULT(no)) fi fi #-------------------------------------------------------------------- # Supply substitutes for missing POSIX library procedures, or # set flags so Tcl uses alternate procedures. #-------------------------------------------------------------------- # Check if Posix compliant getcwd exists, if not we'll use getwd. AC_CHECK_FUNCS(getcwd, , [AC_DEFINE(USEGETWD)]) # Nb: if getcwd uses popen and pwd(1) (like SunOS 4) we should really # define USEGETWD even if the posix getcwd exists. Add a test ? AC_REPLACE_FUNCS(opendir strstr) AC_REPLACE_FUNCS(strtol tmpnam waitpid) AC_CHECK_FUNC(strerror, , [AC_DEFINE(NO_STRERROR)]) AC_CHECK_FUNC(getwd, , [AC_DEFINE(NO_GETWD)]) AC_CHECK_FUNC(wait3, , [AC_DEFINE(NO_WAIT3)]) AC_CHECK_FUNC(uname, , [AC_DEFINE(NO_UNAME)]) AC_CHECK_FUNC(realpath, , [AC_DEFINE(NO_REALPATH)]) #-------------------------------------------------------------------- # Supply substitutes for missing POSIX header files. Special # notes: # - stdlib.h doesn't define strtol, strtoul, or # strtod insome versions of SunOS # - some versions of string.h don't declare procedures such # as strstr #-------------------------------------------------------------------- SC_MISSING_POSIX_HEADERS #--------------------------------------------------------------------------- # Determine which interface to use to talk to the serial port. # Note that #include lines must begin in leftmost column for # some compilers to recognize them as preprocessor directives. #--------------------------------------------------------------------------- SC_SERIAL_PORT #-------------------------------------------------------------------- # Include sys/select.h if it exists and if it supplies things # that appear to be useful and aren't already in sys/types.h. # This appears to be true only on the RS/6000 under AIX. Some # systems like OSF/1 have a sys/select.h that's of no use, and # other systems like SCO UNIX have a sys/select.h that's # pernicious. If "fd_set" isn't defined anywhere then set a # special flag. #-------------------------------------------------------------------- AC_MSG_CHECKING([fd_set and sys/select]) AC_TRY_COMPILE([#include ], [fd_set readMask, writeMask;], tk_ok=yes, tk_ok=no) if test $tk_ok = no; then AC_HEADER_EGREP(fd_mask, sys/select.h, tk_ok=yes) if test $tk_ok = yes; then AC_DEFINE(HAVE_SYS_SELECT_H) fi fi AC_MSG_RESULT($tk_ok) if test $tk_ok = no; then AC_DEFINE(NO_FD_SET) fi #------------------------------------------------------------------------------ # Find out all about time handling differences. #------------------------------------------------------------------------------ SC_TIME_HANDLER #-------------------------------------------------------------------- # Some systems (e.g., IRIX 4.0.5) lack the st_blksize field # in struct stat. But we might be able to use fstatfs instead. #-------------------------------------------------------------------- AC_STRUCT_ST_BLKSIZE AC_CHECK_FUNC(fstatfs, , [AC_DEFINE(NO_FSTATFS)]) #-------------------------------------------------------------------- # Some system have no memcmp or it does not work with 8 bit # data, this checks it and add memcmp.o to LIBOBJS if needed #-------------------------------------------------------------------- AC_FUNC_MEMCMP #-------------------------------------------------------------------- # Some system like SunOS 4 and other BSD like systems # have no memmove (we assume they have bcopy instead). # {The replacement define is in compat/string.h} #-------------------------------------------------------------------- AC_CHECK_FUNC(memmove, , [AC_DEFINE(NO_MEMMOVE) AC_DEFINE(NO_STRING_H)]) #-------------------------------------------------------------------- # On some systems strstr is broken: it returns a pointer even # even if the original string is empty. #-------------------------------------------------------------------- AC_MSG_CHECKING([proper strstr implementation]) AC_TRY_RUN([ extern int strstr(); int main() { exit(strstr("\0test", "test") ? 1 : 0); } ], tcl_ok=yes, tcl_ok=no, tcl_ok=no) if test $tcl_ok = yes; then AC_MSG_RESULT(yes) else AC_MSG_RESULT([broken, using substitute]) LIBOBJS="$LIBOBJS strstr.o" fi #-------------------------------------------------------------------- # Check for strtoul function. This is tricky because under some # versions of AIX strtoul returns an incorrect terminator # pointer for the string "0". #-------------------------------------------------------------------- AC_CHECK_FUNC(strtoul, tcl_ok=1, tcl_ok=0) AC_TRY_RUN([ extern int strtoul(); int main() { char *string = "0"; char *term; int value; value = strtoul(string, &term, 0); if ((value != 0) || (term != (string+1))) { exit(1); } exit(0); }], , tcl_ok=0, tcl_ok=0) if test "$tcl_ok" = 0; then test -n "$verbose" && echo " Adding strtoul.o." LIBOBJS="$LIBOBJS strtoul.o" fi #-------------------------------------------------------------------- # Check for the strtod function. This is tricky because in some # versions of Linux strtod mis-parses strings starting with "+". #-------------------------------------------------------------------- AC_CHECK_FUNC(strtod, tcl_ok=1, tcl_ok=0) AC_TRY_RUN([ extern double strtod(); int main() { char *string = " +69"; char *term; double value; value = strtod(string, &term); if ((value != 69) || (term != (string+4))) { exit(1); } exit(0); }], , tcl_ok=0, tcl_ok=0) if test "$tcl_ok" = 0; then test -n "$verbose" && echo " Adding strtod.o." LIBOBJS="$LIBOBJS strtod.o" fi #-------------------------------------------------------------------- # Under Solaris 2.4, strtod returns the wrong value for the # terminating character under some conditions. Check for this # and if the problem exists use a substitute procedure # "fixstrtod" that corrects the error. #-------------------------------------------------------------------- SC_BUGGY_STRTOD #-------------------------------------------------------------------- # Check for various typedefs and provide substitutes if # they don't exist. #-------------------------------------------------------------------- AC_TYPE_MODE_T AC_TYPE_PID_T AC_TYPE_SIZE_T AC_TYPE_UID_T #-------------------------------------------------------------------- # If a system doesn't have an opendir function (man, that's old!) # then we have to supply a different version of dirent.h which # is compatible with the substitute version of opendir that's # provided. This version only works with V7-style directories. #-------------------------------------------------------------------- AC_CHECK_FUNC(opendir, , [AC_DEFINE(USE_DIRENT2_H)]) #-------------------------------------------------------------------- # The check below checks whether defines the type # "union wait" correctly. It's needed because of weirdness in # HP-UX where "union wait" is defined in both the BSD and SYS-V # environments. Checking the usability of WIFEXITED seems to do # the trick. #-------------------------------------------------------------------- AC_MSG_CHECKING([union wait]) AC_TRY_LINK([#include #include ], [ union wait x; WIFEXITED(x); /* Generates compiler error if WIFEXITED * uses an int. */ ], tcl_ok=yes, tcl_ok=no) AC_MSG_RESULT($tcl_ok) if test $tcl_ok = no; then AC_DEFINE(NO_UNION_WAIT) fi #-------------------------------------------------------------------- # Check to see whether the system supports the matherr function # and its associated type "struct exception". #-------------------------------------------------------------------- AC_MSG_CHECKING([matherr support]) AC_TRY_COMPILE([#include ], [ struct exception x; x.type = DOMAIN; x.type = SING; ], tcl_ok=yes, tcl_ok=no) AC_MSG_RESULT($tcl_ok) if test $tcl_ok = yes; then AC_DEFINE(NEED_MATHERR) fi #-------------------------------------------------------------------- # Check whether there is an strncasecmp function on this system. # This is a bit tricky because under SCO it's in -lsocket and # under Sequent Dynix it's in -linet. #-------------------------------------------------------------------- AC_CHECK_FUNC(strncasecmp, tcl_ok=1, tcl_ok=0) if test "$tcl_ok" = 0; then AC_CHECK_LIB(socket, strncasecmp, tcl_ok=1, tcl_ok=0) fi if test "$tcl_ok" = 0; then AC_CHECK_LIB(inet, strncasecmp, tcl_ok=1, tcl_ok=0) fi if test "$tcl_ok" = 0; then LIBOBJS="$LIBOBJS strncasecmp.o" fi #-------------------------------------------------------------------- # The code below deals with several issues related to gettimeofday: # 1. Some systems don't provide a gettimeofday function at all # (set NO_GETTOD if this is the case). # 2. SGI systems don't use the BSD form of the gettimeofday function, # but they have a BSDgettimeofday function that can be used instead. # 3. See if gettimeofday is declared in the header file. # if not, set the GETTOD_NOT_DECLARED flag so that tclPort.h can # declare it. #-------------------------------------------------------------------- AC_CHECK_FUNC(BSDgettimeofday, [AC_DEFINE(HAVE_BSDGETTIMEOFDAY)], [ AC_CHECK_FUNC(gettimeofday, , [AC_DEFINE(NO_GETTOD)]) ]) AC_MSG_CHECKING([for gettimeofday declaration]) AC_EGREP_HEADER(gettimeofday, sys/time.h, AC_MSG_RESULT(present), [ AC_MSG_RESULT(missing) AC_DEFINE(GETTOD_NOT_DECLARED) ]) #-------------------------------------------------------------------- # The following code checks to see whether it is possible to get # signed chars on this platform. This is needed in order to # properly generate sign-extended ints from character values. #-------------------------------------------------------------------- AC_C_CHAR_UNSIGNED AC_MSG_CHECKING([signed char declarations]) AC_TRY_COMPILE(, [ signed char *p; p = 0; ], tcl_ok=yes, tcl_ok=no) AC_MSG_RESULT($tcl_ok) if test $tcl_ok = yes; then AC_DEFINE(HAVE_SIGNED_CHAR) fi #-------------------------------------------------------------------- # Look for libraries that we will need when compiling the Tcl shell #-------------------------------------------------------------------- SC_TCL_LINK_LIBS # Add the threads support libraries LIBS="$LIBS$THREADS_LIBS" #-------------------------------------------------------------------- # The statements below define a collection of compile flags. This # macro depends on the value of SHARED_BUILD, and should be called # after SC_ENABLE_SHARED checks the configure switches. #-------------------------------------------------------------------- SC_CONFIG_CFLAGS SC_ENABLE_SYMBOLS TCL_DBGX=${DBGX} #-------------------------------------------------------------------- # The statements below check for systems where POSIX-style # non-blocking I/O (O_NONBLOCK) doesn't work or is unimplemented. # On these systems (mostly older ones), use the old BSD-style # FIONBIO approach instead. #-------------------------------------------------------------------- SC_BLOCKING_STYLE #-------------------------------------------------------------------- # The statements below define a collection of symbols related to # building libtcl as a shared library instead of a static library. #-------------------------------------------------------------------- TCL_UNSHARED_LIB_SUFFIX=${UNSHARED_LIB_SUFFIX} TCL_SHARED_LIB_SUFFIX=${SHARED_LIB_SUFFIX} SC_ENABLE_SHARED if test "${SHARED_BUILD}" = "1" -a "${SHLIB_SUFFIX}" != "" ; then TCL_SHLIB_CFLAGS="${SHLIB_CFLAGS}" TCL_LD_SEARCH_FLAGS="${LD_SEARCH_FLAGS}" eval "TCL_LIB_FILE=libtcl${TCL_SHARED_LIB_SUFFIX}" if test "x$DL_OBJS" = "xtclLoadAout.o"; then MAKE_LIB="\${STLIB_LD} \[$]@ \${OBJS}" else MAKE_LIB="\${SHLIB_LD} -o \[$]@ \${OBJS} ${SHLIB_LD_LIBS}" RANLIB=":" fi else case $system in BSD/OS*) ;; AIX-[[1-4]].*) ;; *) SHLIB_LD_LIBS="" ;; esac TCL_SHLIB_CFLAGS="" TCL_LD_SEARCH_FLAGS="${LD_SEARCH_FLAGS}" eval "TCL_LIB_FILE=libtcl${TCL_UNSHARED_LIB_SUFFIX}" MAKE_LIB="\${STLIB_LD} \[$]@ \${OBJS}" fi # tclConfig.sh needs a version of the _LIB_SUFFIX that has been eval'ed # so that the backslashes quoting the DBX braces are dropped. # Trick to replace DBGX with TCL_DBGX DBGX='${TCL_DBGX}' eval "TCL_LIB_FILE=${TCL_LIB_FILE}" # Note: in the following variable, it's important to use the absolute # path name of the Tcl directory rather than "..": this is because # AIX remembers this path and will attempt to use it at run-time to look # up the Tcl library. if test "$SHARED_BUILD" = "0" -o $TCL_NEEDS_EXP_FILE = 0; then if test "${TCL_LIB_VERSIONS_OK}" = "ok"; then TCL_LIB_FLAG="-ltcl${TCL_VERSION}\${TCL_DBGX}" else TCL_LIB_FLAG="-ltcl`echo ${TCL_VERSION} | tr -d .`\${TCL_DBGX}" fi TCL_BUILD_LIB_SPEC="-L`pwd` ${TCL_LIB_FLAG}" TCL_LIB_SPEC="-L${exec_prefix}/lib ${TCL_LIB_FLAG}" else TCL_BUILD_EXP_FILE="lib.exp" eval "TCL_EXP_FILE=libtcl${TCL_EXPORT_FILE_SUFFIX}" # Replace DBGX with TCL_DBGX eval "TCL_EXP_FILE=\"${TCL_EXP_FILE}\"" if test "$using_gcc" = "yes" ; then TCL_BUILD_LIB_SPEC="-Wl,-bI:`pwd`/${TCL_BUILD_EXP_FILE} -L`pwd`" TCL_LIB_SPEC="-Wl,-bI:${exec_prefix}/lib/${TCL_EXP_FILE} -L`pwd`" else TCL_BUILD_LIB_SPEC="-bI:`pwd`/${TCL_BUILD_EXP_FILE}" TCL_LIB_SPEC="-bI:${exec_prefix}/lib/${TCL_EXP_FILE}" fi fi VERSION='${VERSION}' eval "CFG_TCL_SHARED_LIB_SUFFIX=${TCL_SHARED_LIB_SUFFIX}" eval "CFG_TCL_UNSHARED_LIB_SUFFIX=${TCL_UNSHARED_LIB_SUFFIX}" eval "CFG_TCL_EXPORT_FILE_SUFFIX=${TCL_EXPORT_FILE_SUFFIX}" VERSION=${TCL_VERSION} #-------------------------------------------------------------------- # The statements below define the symbol TCL_PACKAGE_PATH, which # gives a list of directories that may contain packages. The list # consists of one directory for machine-dependent binaries and # another for platform-independent scripts. #-------------------------------------------------------------------- if test "$prefix" != "$exec_prefix"; then TCL_PACKAGE_PATH="${exec_prefix}/lib ${prefix}/lib" else TCL_PACKAGE_PATH="${prefix}/lib" fi #-------------------------------------------------------------------- # The statements below define various symbols relating to Tcl # stub support. #-------------------------------------------------------------------- # Replace ${VERSION} with contents of ${TCL_VERSION} eval "TCL_STUB_LIB_FILE=libtclstub${TCL_UNSHARED_LIB_SUFFIX}" # Replace DBGX with TCL_DBGX eval "TCL_STUB_LIB_FILE=\"${TCL_STUB_LIB_FILE}\"" MAKE_STUB_LIB="\${STLIB_LD} \[$]@ \${STUB_LIB_OBJS}" if test "${TCL_LIB_VERSIONS_OK}" = "ok"; then TCL_STUB_LIB_FLAG="-ltclstub${TCL_VERSION}\${TCL_DBGX}" else TCL_STUB_LIB_FLAG="-ltclstub`echo ${TCL_VERSION} | tr -d .`\${TCL_DBGX}" fi TCL_BUILD_STUB_LIB_SPEC="-L`pwd` ${TCL_STUB_LIB_FLAG}" TCL_STUB_LIB_SPEC="-L${exec_prefix}/lib ${TCL_STUB_LIB_FLAG}" TCL_BUILD_STUB_LIB_PATH="`pwd`/${TCL_STUB_LIB_FILE}" TCL_STUB_LIB_PATH="${exec_prefix}/lib/${TCL_STUB_LIB_FILE}" #------------------------------------------------------------------------ # tclConfig.sh refers to this by a different name #------------------------------------------------------------------------ TCL_SHARED_BUILD=${SHARED_BUILD} AC_SUBST(TCL_STUB_LIB_FILE) AC_SUBST(TCL_STUB_LIB_FLAG) AC_SUBST(TCL_BUILD_STUB_LIB_SPEC) AC_SUBST(TCL_STUB_LIB_SPEC) AC_SUBST(TCL_BUILD_STUB_LIB_PATH) AC_SUBST(TCL_STUB_LIB_PATH) AC_SUBST(MAKE_STUB_LIB) AC_SUBST(BUILD_DLTEST) AC_SUBST(CFLAGS) AC_SUBST(CFLAGS_DEFAULT) AC_SUBST(CFG_TCL_SHARED_LIB_SUFFIX) AC_SUBST(CFG_TCL_UNSHARED_LIB_SUFFIX) AC_SUBST(CFG_TCL_EXPORT_FILE_SUFFIX) AC_SUBST(TCL_DBGX) AC_SUBST(DL_OBJS) AC_SUBST(EXTRA_CFLAGS) AC_SUBST(LDFLAGS) AC_SUBST(LDFLAGS_DEFAULT) # FIXME: Should this be TCL_LDFLAGS_DEBUG ? AC_SUBST(LDFLAGS_DEBUG) AC_SUBST(LDFLAGS_OPTIMIZE) AC_SUBST(AR) AC_SUBST(RANLIB) AC_SUBST(MAKE_LIB) AC_SUBST(TCL_SHARED_BUILD) AC_SUBST(SHLIB_CFLAGS) AC_SUBST(SHLIB_LD) AC_SUBST(STLIB_LD) AC_SUBST(SHLIB_LD_LIBS) AC_SUBST(SHLIB_SUFFIX) AC_SUBST(TCL_BUILD_LIB_SPEC) AC_SUBST(TCL_LD_SEARCH_FLAGS) AC_SUBST(TCL_LDFLAGS_DEBUG) AC_SUBST(TCL_LDFLAGS_OPTIMIZE) AC_SUBST(TCL_LIB_FILE) AC_SUBST(TCL_LIB_FLAG) AC_SUBST(TCL_NEEDS_EXP_FILE) AC_SUBST(TCL_BUILD_EXP_FILE) AC_SUBST(TCL_EXP_FILE) AC_SUBST(TCL_LIB_SPEC) AC_SUBST(TCL_LIB_VERSIONS_OK) AC_SUBST(TCL_MAJOR_VERSION) AC_SUBST(TCL_MINOR_VERSION) AC_SUBST(TCL_PACKAGE_PATH) AC_SUBST(TCL_PATCH_LEVEL) AC_SUBST(TCL_SHARED_LIB_SUFFIX) AC_SUBST(TCL_SHLIB_CFLAGS) AC_SUBST(TCL_SRC_DIR) AC_SUBST(TCL_BIN_DIR) AC_SUBST(TCL_UNSHARED_LIB_SUFFIX) AC_SUBST(TCL_VERSION) AC_OUTPUT(Makefile tclConfig.sh)