diff options
Diffstat (limited to 'unix/tcl.m4')
| -rw-r--r-- | unix/tcl.m4 | 1354 |
1 files changed, 678 insertions, 676 deletions
diff --git a/unix/tcl.m4 b/unix/tcl.m4 index 4a8b9fd..e78daaa 100644 --- a/unix/tcl.m4 +++ b/unix/tcl.m4 @@ -13,7 +13,8 @@ # --with-tcl=... # # Defines the following vars: -# TCL_BIN_DIR Full path to the tclConfig.sh file +# TCL_BIN_DIR Full path to the directory containing +# the tclConfig.sh file #------------------------------------------------------------------------ AC_DEFUN(SC_PATH_TCLCONFIG, [ @@ -106,80 +107,81 @@ fi # --with-tk=... # # Defines the following vars: -# TK_BIN_DIR Full path to the tkConfig.sh file +# TK_BIN_DIR Full path to the directory containing +# the tkConfig.sh file #------------------------------------------------------------------------ AC_DEFUN(SC_PATH_TKCONFIG, [ -# -# Ok, lets find the tk configuration -# First, look for one uninstalled. -# the alternative search directory is invoked by --with-tk -# + # + # Ok, lets find the tk configuration + # First, look for one uninstalled. + # the alternative search directory is invoked by --with-tk + # -if test x"${no_tk}" = x ; then - # we reset no_tk in case something fails here - no_tk=true - AC_ARG_WITH(tk, [ --with-tk directory containing tk configuration (tkConfig.sh)], - with_tkconfig=${withval}) - AC_MSG_CHECKING([for Tk configuration]) - AC_CACHE_VAL(ac_cv_c_tkconfig,[ + if test x"${no_tk}" = x ; then + # we reset no_tk in case something fails here + no_tk=true + AC_ARG_WITH(tk, [ --with-tk directory containing tk configuration (tkConfig.sh)], + with_tkconfig=${withval}) + AC_MSG_CHECKING([for Tk configuration]) + AC_CACHE_VAL(ac_cv_c_tkconfig,[ + + # First check to see if --with-tkconfig was specified. + if test x"${with_tkconfig}" != x ; then + if test -f "${with_tkconfig}/tkConfig.sh" ; then + ac_cv_c_tkconfig=`(cd ${with_tkconfig}; pwd)` + else + AC_MSG_ERROR([${with_tkconfig} directory doesn't contain tkConfig.sh]) + fi + fi - # First check to see if --with-tkconfig was specified. - if test x"${with_tkconfig}" != x ; then - if test -f "${with_tkconfig}/tkConfig.sh" ; then - ac_cv_c_tkconfig=`(cd ${with_tkconfig}; pwd)` - else - AC_MSG_ERROR([${with_tkconfig} directory doesn't contain tkConfig.sh]) + # then check for a private Tk library + if test x"${ac_cv_c_tkconfig}" = x ; then + for i in \ + ../tk \ + `ls -dr ../tk[[8-9]].[[0-9]]* 2>/dev/null` \ + ../../tk \ + `ls -dr ../../tk[[8-9]].[[0-9]]* 2>/dev/null` \ + ../../../tk \ + `ls -dr ../../../tk[[8-9]].[[0-9]]* 2>/dev/null` ; do + if test -f "$i/unix/tkConfig.sh" ; then + ac_cv_c_tkconfig=`(cd $i/unix; pwd)` + break + fi + done + fi + # check in a few common install locations + if test x"${ac_cv_c_tkconfig}" = x ; then + for i in `ls -d ${prefix}/lib 2>/dev/null` \ + `ls -d /usr/local/lib 2>/dev/null` ; do + if test -f "$i/tkConfig.sh" ; then + ac_cv_c_tkconfig=`(cd $i; pwd)` + break + fi + done + fi + # check in a few other private locations + if test x"${ac_cv_c_tkconfig}" = x ; then + for i in \ + ${srcdir}/../tk \ + `ls -dr ${srcdir}/../tk[[8-9]].[[0-9]]* 2>/dev/null` ; do + if test -f "$i/unix/tkConfig.sh" ; then + ac_cv_c_tkconfig=`(cd $i/unix; pwd)` + break + fi + done + fi + ]) + if test x"${ac_cv_c_tkconfig}" = x ; then + TK_BIN_DIR="# no Tk configs found" + AC_MSG_WARN(Can't find Tk configuration definitions) + exit 0 + else + no_tk= + TK_BIN_DIR=${ac_cv_c_tkconfig} + AC_MSG_RESULT(found $TK_BIN_DIR/tkConfig.sh) + fi fi - fi - - # then check for a private Tk library - if test x"${ac_cv_c_tkconfig}" = x ; then - for i in \ - ../tk \ - `ls -dr ../tk[[8-9]].[[0-9]]* 2>/dev/null` \ - ../../tk \ - `ls -dr ../../tk[[8-9]].[[0-9]]* 2>/dev/null` \ - ../../../tk \ - `ls -dr ../../../tk[[8-9]].[[0-9]]* 2>/dev/null` ; do - if test -f "$i/unix/tkConfig.sh" ; then - ac_cv_c_tkconfig=`(cd $i/unix; pwd)` - break - fi - done - fi - # check in a few common install locations - if test x"${ac_cv_c_tkconfig}" = x ; then - for i in `ls -d ${prefix}/lib 2>/dev/null` \ - `ls -d /usr/local/lib 2>/dev/null` ; do - if test -f "$i/tkConfig.sh" ; then - ac_cv_c_tkconfig=`(cd $i; pwd)` - break - fi - done - fi - # check in a few other private locations - if test x"${ac_cv_c_tkconfig}" = x ; then - for i in \ - ${srcdir}/../tk \ - `ls -dr ${srcdir}/../tk[[8-9]].[[0-9]]* 2>/dev/null` ; do - if test -f "$i/unix/tkConfig.sh" ; then - ac_cv_c_tkconfig=`(cd $i/unix; pwd)` - break - fi - done - fi - ]) - if test x"${ac_cv_c_tkconfig}" = x ; then - TK_BIN_DIR="# no Tk configs found" - AC_MSG_WARN(Can't find Tk configuration definitions) - exit 0 - else - no_tk= - TK_BIN_DIR=${ac_cv_c_tkconfig} - AC_MSG_RESULT(found $TK_BIN_DIR/tkConfig.sh) - fi -fi ]) @@ -419,613 +421,6 @@ AC_DEFUN(SC_ENABLE_SYMBOLS, [ ]) #-------------------------------------------------------------------- -# SC_SERIAL_PORT -# -# 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. -# -# Arguments: -# none -# -# Results: -# -# Defines only one of the following vars: -# USE_TERMIOS -# USE_TERMIO -# USE_SGTTY -# -#-------------------------------------------------------------------- - -AC_DEFUN(SC_SERIAL_PORT, [ - AC_MSG_CHECKING([termios vs. termio vs. sgtty]) - - AC_TRY_RUN([ -#include <termios.h> - -main() -{ - struct termios t; - if (tcgetattr(0, &t) == 0) { - cfsetospeed(&t, 0); - t.c_cflag |= PARENB | PARODD | CSIZE | CSTOPB; - return 0; - } - return 1; -}], tk_ok=termios, tk_ok=no, tk_ok=no) - - if test $tk_ok = termios; then - AC_DEFINE(USE_TERMIOS) - else - AC_TRY_RUN([ -#include <termio.h> - -main() -{ - struct termio t; - if (ioctl(0, TCGETA, &t) == 0) { - t.c_cflag |= CBAUD | PARENB | PARODD | CSIZE | CSTOPB; - return 0; - } - return 1; - }], tk_ok=termio, tk_ok=no, tk_ok=no) - - if test $tk_ok = termio; then - AC_DEFINE(USE_TERMIO) - else - AC_TRY_RUN([ -#include <sgtty.h> - -main() -{ - struct sgttyb t; - if (ioctl(0, TIOCGETP, &t) == 0) { - t.sg_ospeed = 0; - t.sg_flags |= ODDP | EVENP | RAW; - return 0; - } - return 1; -}], tk_ok=sgtty, tk_ok=none, tk_ok=none) - if test $tk_ok = sgtty; then - AC_DEFINE(USE_SGTTY) - fi - fi - fi - AC_MSG_RESULT($tk_ok) -]) - -#-------------------------------------------------------------------- -# SC_MISSING_POSIX_HEADERS -# -# 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 -# -# Arguments: -# none -# -# Results: -# -# Defines some of the following vars: -# NO_DIRENT_H -# NO_ERRNO_H -# NO_VALUES_H -# NO_LIMITS_H -# NO_STDLIB_H -# NO_STRING_H -# NO_SYS_WAIT_H -# NO_DLFCN_H -# HAVE_UNISTD_H -# HAVE_SYS_PARAM_H -# -# HAVE_STRING_H ? -# -#-------------------------------------------------------------------- - -AC_DEFUN(SC_MISSING_POSIX_HEADERS, [ - - AC_MSG_CHECKING(dirent.h) - AC_TRY_LINK([#include <sys/types.h> -#include <dirent.h>], [ -#ifndef _POSIX_SOURCE -# ifdef __Lynx__ - /* - * Generate compilation error to make the test fail: Lynx headers - * are only valid if really in the POSIX environment. - */ - - missing_procedure(); -# endif -#endif -DIR *d; -struct dirent *entryPtr; -char *p; -d = opendir("foobar"); -entryPtr = readdir(d); -p = entryPtr->d_name; -closedir(d); -], tcl_ok=yes, tcl_ok=no) - - if test $tcl_ok = no; then - AC_DEFINE(NO_DIRENT_H) - fi - - AC_MSG_RESULT($tcl_ok) - AC_CHECK_HEADER(errno.h, , AC_DEFINE(NO_ERRNO_H)) - AC_CHECK_HEADER(float.h, , AC_DEFINE(NO_FLOAT_H)) - AC_CHECK_HEADER(values.h, , AC_DEFINE(NO_VALUES_H)) - AC_CHECK_HEADER(limits.h, , AC_DEFINE(NO_LIMITS_H)) - AC_CHECK_HEADER(stdlib.h, tcl_ok=1, tcl_ok=0) - AC_EGREP_HEADER(strtol, stdlib.h, , tcl_ok=0) - AC_EGREP_HEADER(strtoul, stdlib.h, , tcl_ok=0) - AC_EGREP_HEADER(strtod, stdlib.h, , tcl_ok=0) - if test $tcl_ok = 0; then - AC_DEFINE(NO_STDLIB_H) - fi - AC_CHECK_HEADER(string.h, tcl_ok=1, tcl_ok=0) - AC_EGREP_HEADER(strstr, string.h, , tcl_ok=0) - AC_EGREP_HEADER(strerror, string.h, , tcl_ok=0) - - # See also memmove check below for a place where NO_STRING_H can be - # set and why. - - if test $tcl_ok = 0; then - AC_DEFINE(NO_STRING_H) - fi - - AC_CHECK_HEADER(sys/wait.h, , AC_DEFINE(NO_SYS_WAIT_H)) - AC_CHECK_HEADER(dlfcn.h, , AC_DEFINE(NO_DLFCN_H)) - - # OS/390 lacks sys/param.h (and doesn't need it, by chance). - - AC_HAVE_HEADERS(unistd.h sys/param.h) - -]) - -#-------------------------------------------------------------------- -# SC_PATH_X -# -# Locate the X11 header files and the X11 library archive. Try -# the ac_path_x macro first, but if it doesn't find the X stuff -# (e.g. because there's no xmkmf program) then check through -# a list of possible directories. Under some conditions the -# autoconf macro will return an include directory that contains -# no include files, so double-check its result just to be safe. -# -# Arguments: -# none -# -# Results: -# -# Sets the the following vars: -# XINCLUDES -# XLIBSW -# -#-------------------------------------------------------------------- - -AC_DEFUN(SC_PATH_X, [ - AC_PATH_X - not_really_there="" - if test "$no_x" = ""; then - if test "$x_includes" = ""; then - AC_TRY_CPP([#include <X11/XIntrinsic.h>], , not_really_there="yes") - else - if test ! -r $x_includes/X11/Intrinsic.h; then - not_really_there="yes" - fi - fi - fi - if test "$no_x" = "yes" -o "$not_really_there" = "yes"; then - AC_MSG_CHECKING(for X11 header files) - XINCLUDES="# no special path needed" - AC_TRY_CPP([#include <X11/Intrinsic.h>], , XINCLUDES="nope") - if test "$XINCLUDES" = nope; then - dirs="/usr/unsupported/include /usr/local/include /usr/X386/include /usr/X11R6/include /usr/X11R5/include /usr/include/X11R5 /usr/include/X11R4 /usr/openwin/include /usr/X11/include /usr/sww/include" - for i in $dirs ; do - if test -r $i/X11/Intrinsic.h; then - AC_MSG_RESULT($i) - XINCLUDES=" -I$i" - break - fi - done - fi - else - if test "$x_includes" != ""; then - XINCLUDES=-I$x_includes - else - XINCLUDES="# no special path needed" - fi - fi - if test "$XINCLUDES" = nope; then - AC_MSG_RESULT(couldn't find any!) - XINCLUDES="# no include files found" - fi - - if test "$no_x" = yes; then - AC_MSG_CHECKING(for X11 libraries) - XLIBSW=nope - dirs="/usr/unsupported/lib /usr/local/lib /usr/X386/lib /usr/X11R6/lib /usr/X11R5/lib /usr/lib/X11R5 /usr/lib/X11R4 /usr/openwin/lib /usr/X11/lib /usr/sww/X11/lib" - for i in $dirs ; do - if test -r $i/libX11.a -o -r $i/libX11.so -o -r $i/libX11.sl; then - AC_MSG_RESULT($i) - XLIBSW="-L$i -lX11" - x_libraries="$i" - break - fi - done - else - if test "$x_libraries" = ""; then - XLIBSW=-lX11 - else - XLIBSW="-L$x_libraries -lX11" - fi - fi - if test "$XLIBSW" = nope ; then - AC_CHECK_LIB(Xwindow, XCreateWindow, XLIBSW=-lXwindow) - fi - if test "$XLIBSW" = nope ; then - AC_MSG_RESULT(couldn't find any! Using -lX11.) - XLIBSW=-lX11 - fi -]) -#-------------------------------------------------------------------- -# SC_BLOCKING_STYLE -# -# 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. -# -# Arguments: -# none -# -# Results: -# -# Defines some of the following vars: -# HAVE_SYS_IOCTL_H -# HAVE_SYS_FILIO_H -# USE_FIONBIO -# O_NONBLOCK -# -#-------------------------------------------------------------------- - -AC_DEFUN(SC_BLOCKING_STYLE, [ - AC_CHECK_HEADERS(sys/ioctl.h) - AC_CHECK_HEADERS(sys/filio.h) - AC_MSG_CHECKING([FIONBIO vs. O_NONBLOCK for nonblocking I/O]) - if test -f /usr/lib/NextStep/software_version; then - system=NEXTSTEP-`awk '/3/,/3/' /usr/lib/NextStep/software_version` - else - system=`uname -s`-`uname -r` - if test "$?" -ne 0 ; then - system=unknown - else - # Special check for weird MP-RAS system (uname returns weird - # results, and the version is kept in special file). - - if test -r /etc/.relid -a "X`uname -n`" = "X`uname -s`" ; then - system=MP-RAS-`awk '{print $3}' /etc/.relid'` - fi - if test "`uname -s`" = "AIX" ; then - system=AIX-`uname -v`.`uname -r` - fi - fi - fi - case $system in - # There used to be code here to use FIONBIO under AIX. However, it - # was reported that FIONBIO doesn't work under AIX 3.2.5. Since - # using O_NONBLOCK seems fine under AIX 4.*, I removed the FIONBIO - # code (JO, 5/31/97). - - OSF*) - AC_DEFINE(USE_FIONBIO) - AC_MSG_RESULT(FIONBIO) - ;; - SunOS-4*) - AC_DEFINE(USE_FIONBIO) - AC_MSG_RESULT(FIONBIO) - ;; - ULTRIX-4.*) - AC_DEFINE(USE_FIONBIO) - AC_MSG_RESULT(FIONBIO) - ;; - *) - AC_MSG_RESULT(O_NONBLOCK) - ;; - esac -]) - -#-------------------------------------------------------------------- -# SC_HAVE_VFORK -# -# Check to see whether the system provides a vfork kernel call. -# If not, then use fork instead. Also, check for a problem with -# vforks and signals that can cause core dumps if a vforked child -# resets a signal handler. If the problem exists, then use fork -# instead of vfork. -# -# Arguments: -# none -# -# Results: -# -# Defines some of the following vars: -# vfork (=fork) -# -#-------------------------------------------------------------------- - -AC_DEFUN(SC_HAVE_VFORK, [ - AC_TYPE_SIGNAL() - AC_CHECK_FUNC(vfork, tcl_ok=1, tcl_ok=0) - if test "$tcl_ok" = 1; then - AC_MSG_CHECKING([vfork/signal bug]); - AC_TRY_RUN([ -#include <stdio.h> -#include <signal.h> -#include <sys/wait.h> -int gotSignal = 0; -sigProc(sig) - int sig; -{ - gotSignal = 1; -} -main() -{ - int pid, sts; - (void) signal(SIGCHLD, sigProc); - pid = vfork(); - if (pid < 0) { - exit(1); - } else if (pid == 0) { - (void) signal(SIGCHLD, SIG_DFL); - _exit(0); - } else { - (void) wait(&sts); - } - exit((gotSignal) ? 0 : 1); -}], tcl_ok=1, tcl_ok=0, tcl_ok=0) - - if test "$tcl_ok" = 1; then - AC_MSG_RESULT(ok) - else - AC_MSG_RESULT([buggy, using fork instead]) - fi - fi - rm -f core - if test "$tcl_ok" = 0; then - AC_DEFINE(vfork, fork) - fi -]) - -#-------------------------------------------------------------------- -# SC_TIME_HANLDER -# -# Checks how the system deals with time.h, what time structures -# are used on the system, and what fields the structures have. -# -# Arguments: -# none -# -# Results: -# -# Defines some of the following vars: -# USE_DELTA_FOR_TZ -# HAVE_TM_GMTOFF -# HAVE_TM_TZADJ -# HAVE_TIMEZONE_VAR -# -#-------------------------------------------------------------------- - -AC_DEFUN(SC_TIME_HANDLER, [ - AC_CHECK_HEADERS(sys/time.h) - AC_HEADER_TIME - AC_STRUCT_TIMEZONE - - AC_MSG_CHECKING([tm_tzadj in struct tm]) - AC_TRY_COMPILE([#include <time.h>], [struct tm tm; tm.tm_tzadj;], - [AC_DEFINE(HAVE_TM_TZADJ) - AC_MSG_RESULT(yes)], - AC_MSG_RESULT(no)) - - AC_MSG_CHECKING([tm_gmtoff in struct tm]) - AC_TRY_COMPILE([#include <time.h>], [struct tm tm; tm.tm_gmtoff;], - [AC_DEFINE(HAVE_TM_GMTOFF) - AC_MSG_RESULT(yes)], - AC_MSG_RESULT(no)) - - # - # Its important to include time.h in this check, as some systems - # (like convex) have timezone functions, etc. - # - have_timezone=no - AC_MSG_CHECKING([long timezone variable]) - AC_TRY_COMPILE([#include <time.h>], - [extern long timezone; - timezone += 1; - exit (0);], - [have_timezone=yes - AC_DEFINE(HAVE_TIMEZONE_VAR) - AC_MSG_RESULT(yes)], - AC_MSG_RESULT(no)) - - # - # On some systems (eg IRIX 6.2), timezone is a time_t and not a long. - # - if test "$have_timezone" = no; then - AC_MSG_CHECKING([time_t timezone variable]) - AC_TRY_COMPILE([#include <time.h>], - [extern time_t timezone; - timezone += 1; - exit (0);], - [AC_DEFINE(HAVE_TIMEZONE_VAR) - AC_MSG_RESULT(yes)], - AC_MSG_RESULT(no)) - fi - - # - # AIX does not have a timezone field in struct tm. When the AIX bsd - # library is used, the timezone global and the gettimeofday methods are - # to be avoided for timezone deduction instead, we deduce the timezone - # by comparing the localtime result on a known GMT value. - # - - if test "`uname -s`" = "AIX" ; then - AC_CHECK_LIB(bsd, gettimeofday, libbsd=yes) - if test $libbsd = yes; then - AC_DEFINE(USE_DELTA_FOR_TZ) - fi - fi -]) - -#-------------------------------------------------------------------- -# SC_BUGGY_STRTOD -# -# Under Solaris 2.4, strtod returns the wrong value for the -# terminating character under some conditions. Check for this -# and if the problem exists use a substitute procedure -# "fixstrtod" (provided by Tcl) that corrects the error. -# -# Arguments: -# none -# -# Results: -# -# Might defines some of the following vars: -# strtod (=fixstrtod) -# -#-------------------------------------------------------------------- - -AC_DEFUN(SC_BUGGY_STRTOD, [ - AC_CHECK_FUNC(strtod, tk_strtod=1, tk_strtod=0) - if test "$tk_strtod" = 1; then - AC_MSG_CHECKING([for Solaris 2.4 strtod bug]) - AC_TRY_RUN([ - extern double strtod(); - int main() - { - char *string = "NaN"; - char *term; - strtod(string, &term); - if ((term != string) && (term[-1] == 0)) { - exit(1); - } - exit(0); - }], tk_ok=1, tk_ok=0, tk_ok=0) - if test "$tk_ok" = 1; then - AC_MSG_RESULT(ok) - else - AC_MSG_RESULT(buggy) - AC_DEFINE(strtod, fixstrtod) - fi - fi -]) - -#-------------------------------------------------------------------- -# SC_TCL_LINK_LIBS -# -# Search for the libraries needed to link the Tcl shell. -# Things like the math library (-lm) and socket stuff (-lsocket vs. -# -lnsl) are dealt with here. -# -# Arguments: -# Requires the following vars to be set in the Makefile: -# DL_LIBS -# LIBS -# MATH_LIBS -# -# Results: -# -# Subst's the following var: -# TCL_LIBS -# MATH_LIBS -# -# Might append to the following vars: -# LIBS -# -# Might define the following vars: -# HAVE_NET_ERRNO_H -# -#-------------------------------------------------------------------- - -AC_DEFUN(SC_TCL_LINK_LIBS, [ - #-------------------------------------------------------------------- - # On a few very rare systems, all of the libm.a stuff is - # already in libc.a. Set compiler flags accordingly. - # Also, Linux requires the "ieee" library for math to work - # right (and it must appear before "-lm"). - #-------------------------------------------------------------------- - - AC_CHECK_FUNC(sin, MATH_LIBS="", MATH_LIBS="-lm") - AC_CHECK_LIB(ieee, main, [MATH_LIBS="-lieee $MATH_LIBS"]) - - #-------------------------------------------------------------------- - # On AIX systems, libbsd.a has to be linked in to support - # non-blocking file IO. This library has to be linked in after - # the MATH_LIBS or it breaks the pow() function. The way to - # insure proper sequencing, is to add it to the tail of MATH_LIBS. - # This library also supplies gettimeofday. - #-------------------------------------------------------------------- - - libbsd=no - if test "`uname -s`" = "AIX" ; then - AC_CHECK_LIB(bsd, gettimeofday, libbsd=yes) - if test $libbsd = yes; then - MATH_LIBS="$MATH_LIBS -lbsd" - fi - fi - - - #-------------------------------------------------------------------- - # Interactive UNIX requires -linet instead of -lsocket, plus it - # needs net/errno.h to define the socket-related error codes. - #-------------------------------------------------------------------- - - AC_CHECK_LIB(inet, main, [LIBS="$LIBS -linet"]) - AC_CHECK_HEADER(net/errno.h, AC_DEFINE(HAVE_NET_ERRNO_H)) - - #-------------------------------------------------------------------- - # Check for the existence of the -lsocket and -lnsl libraries. - # The order here is important, so that they end up in the right - # order in the command line generated by make. Here are some - # special considerations: - # 1. Use "connect" and "accept" to check for -lsocket, and - # "gethostbyname" to check for -lnsl. - # 2. Use each function name only once: can't redo a check because - # autoconf caches the results of the last check and won't redo it. - # 3. Use -lnsl and -lsocket only if they supply procedures that - # aren't already present in the normal libraries. This is because - # IRIX 5.2 has libraries, but they aren't needed and they're - # bogus: they goof up name resolution if used. - # 4. On some SVR4 systems, can't use -lsocket without -lnsl too. - # To get around this problem, check for both libraries together - # if -lsocket doesn't work by itself. - #-------------------------------------------------------------------- - - tcl_checkBoth=0 - AC_CHECK_FUNC(connect, tcl_checkSocket=0, tcl_checkSocket=1) - if test "$tcl_checkSocket" = 1; then - AC_CHECK_LIB(socket, main, LIBS="$LIBS -lsocket", tcl_checkBoth=1) - fi - if test "$tcl_checkBoth" = 1; then - tk_oldLibs=$LIBS - LIBS="$LIBS -lsocket -lnsl" - AC_CHECK_FUNC(accept, tcl_checkNsl=0, [LIBS=$tk_oldLibs]) - fi - AC_CHECK_FUNC(gethostbyname, , AC_CHECK_LIB(nsl, main, - [LIBS="$LIBS -lnsl"])) - - # Don't perform the eval of the libraries here because DL_LIBS - # won't be set until we call SC_CONFIG_CFLAGS - - TCL_LIBS='${DL_LIBS} ${LIBS} ${MATH_LIBS}' - AC_SUBST(TCL_LIBS) - AC_SUBST(MATH_LIBS) -]) - -#-------------------------------------------------------------------- # SC_CONFIG_CFLAGS # # Try to determine the proper flags to pass to the compiler @@ -1683,3 +1078,610 @@ AC_DEFUN(SC_CONFIG_CFLAGS, [ AC_SUBST(CFLAGS_DEBUG) AC_SUBST(CFLAGS_OPTIMIZE) ]) + +#-------------------------------------------------------------------- +# SC_SERIAL_PORT +# +# 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. +# +# Arguments: +# none +# +# Results: +# +# Defines only one of the following vars: +# USE_TERMIOS +# USE_TERMIO +# USE_SGTTY +# +#-------------------------------------------------------------------- + +AC_DEFUN(SC_SERIAL_PORT, [ + AC_MSG_CHECKING([termios vs. termio vs. sgtty]) + + AC_TRY_RUN([ +#include <termios.h> + +main() +{ + struct termios t; + if (tcgetattr(0, &t) == 0) { + cfsetospeed(&t, 0); + t.c_cflag |= PARENB | PARODD | CSIZE | CSTOPB; + return 0; + } + return 1; +}], tk_ok=termios, tk_ok=no, tk_ok=no) + + if test $tk_ok = termios; then + AC_DEFINE(USE_TERMIOS) + else + AC_TRY_RUN([ +#include <termio.h> + +main() +{ + struct termio t; + if (ioctl(0, TCGETA, &t) == 0) { + t.c_cflag |= CBAUD | PARENB | PARODD | CSIZE | CSTOPB; + return 0; + } + return 1; + }], tk_ok=termio, tk_ok=no, tk_ok=no) + + if test $tk_ok = termio; then + AC_DEFINE(USE_TERMIO) + else + AC_TRY_RUN([ +#include <sgtty.h> + +main() +{ + struct sgttyb t; + if (ioctl(0, TIOCGETP, &t) == 0) { + t.sg_ospeed = 0; + t.sg_flags |= ODDP | EVENP | RAW; + return 0; + } + return 1; +}], tk_ok=sgtty, tk_ok=none, tk_ok=none) + if test $tk_ok = sgtty; then + AC_DEFINE(USE_SGTTY) + fi + fi + fi + AC_MSG_RESULT($tk_ok) +]) + +#-------------------------------------------------------------------- +# SC_MISSING_POSIX_HEADERS +# +# 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 +# +# Arguments: +# none +# +# Results: +# +# Defines some of the following vars: +# NO_DIRENT_H +# NO_ERRNO_H +# NO_VALUES_H +# NO_LIMITS_H +# NO_STDLIB_H +# NO_STRING_H +# NO_SYS_WAIT_H +# NO_DLFCN_H +# HAVE_UNISTD_H +# HAVE_SYS_PARAM_H +# +# HAVE_STRING_H ? +# +#-------------------------------------------------------------------- + +AC_DEFUN(SC_MISSING_POSIX_HEADERS, [ + + AC_MSG_CHECKING(dirent.h) + AC_TRY_LINK([#include <sys/types.h> +#include <dirent.h>], [ +#ifndef _POSIX_SOURCE +# ifdef __Lynx__ + /* + * Generate compilation error to make the test fail: Lynx headers + * are only valid if really in the POSIX environment. + */ + + missing_procedure(); +# endif +#endif +DIR *d; +struct dirent *entryPtr; +char *p; +d = opendir("foobar"); +entryPtr = readdir(d); +p = entryPtr->d_name; +closedir(d); +], tcl_ok=yes, tcl_ok=no) + + if test $tcl_ok = no; then + AC_DEFINE(NO_DIRENT_H) + fi + + AC_MSG_RESULT($tcl_ok) + AC_CHECK_HEADER(errno.h, , AC_DEFINE(NO_ERRNO_H)) + AC_CHECK_HEADER(float.h, , AC_DEFINE(NO_FLOAT_H)) + AC_CHECK_HEADER(values.h, , AC_DEFINE(NO_VALUES_H)) + AC_CHECK_HEADER(limits.h, , AC_DEFINE(NO_LIMITS_H)) + AC_CHECK_HEADER(stdlib.h, tcl_ok=1, tcl_ok=0) + AC_EGREP_HEADER(strtol, stdlib.h, , tcl_ok=0) + AC_EGREP_HEADER(strtoul, stdlib.h, , tcl_ok=0) + AC_EGREP_HEADER(strtod, stdlib.h, , tcl_ok=0) + if test $tcl_ok = 0; then + AC_DEFINE(NO_STDLIB_H) + fi + AC_CHECK_HEADER(string.h, tcl_ok=1, tcl_ok=0) + AC_EGREP_HEADER(strstr, string.h, , tcl_ok=0) + AC_EGREP_HEADER(strerror, string.h, , tcl_ok=0) + + # See also memmove check below for a place where NO_STRING_H can be + # set and why. + + if test $tcl_ok = 0; then + AC_DEFINE(NO_STRING_H) + fi + + AC_CHECK_HEADER(sys/wait.h, , AC_DEFINE(NO_SYS_WAIT_H)) + AC_CHECK_HEADER(dlfcn.h, , AC_DEFINE(NO_DLFCN_H)) + + # OS/390 lacks sys/param.h (and doesn't need it, by chance). + + AC_HAVE_HEADERS(unistd.h sys/param.h) + +]) + +#-------------------------------------------------------------------- +# SC_PATH_X +# +# Locate the X11 header files and the X11 library archive. Try +# the ac_path_x macro first, but if it doesn't find the X stuff +# (e.g. because there's no xmkmf program) then check through +# a list of possible directories. Under some conditions the +# autoconf macro will return an include directory that contains +# no include files, so double-check its result just to be safe. +# +# Arguments: +# none +# +# Results: +# +# Sets the the following vars: +# XINCLUDES +# XLIBSW +# +#-------------------------------------------------------------------- + +AC_DEFUN(SC_PATH_X, [ + AC_PATH_X + not_really_there="" + if test "$no_x" = ""; then + if test "$x_includes" = ""; then + AC_TRY_CPP([#include <X11/XIntrinsic.h>], , not_really_there="yes") + else + if test ! -r $x_includes/X11/Intrinsic.h; then + not_really_there="yes" + fi + fi + fi + if test "$no_x" = "yes" -o "$not_really_there" = "yes"; then + AC_MSG_CHECKING(for X11 header files) + XINCLUDES="# no special path needed" + AC_TRY_CPP([#include <X11/Intrinsic.h>], , XINCLUDES="nope") + if test "$XINCLUDES" = nope; then + dirs="/usr/unsupported/include /usr/local/include /usr/X386/include /usr/X11R6/include /usr/X11R5/include /usr/include/X11R5 /usr/include/X11R4 /usr/openwin/include /usr/X11/include /usr/sww/include" + for i in $dirs ; do + if test -r $i/X11/Intrinsic.h; then + AC_MSG_RESULT($i) + XINCLUDES=" -I$i" + break + fi + done + fi + else + if test "$x_includes" != ""; then + XINCLUDES=-I$x_includes + else + XINCLUDES="# no special path needed" + fi + fi + if test "$XINCLUDES" = nope; then + AC_MSG_RESULT(couldn't find any!) + XINCLUDES="# no include files found" + fi + + if test "$no_x" = yes; then + AC_MSG_CHECKING(for X11 libraries) + XLIBSW=nope + dirs="/usr/unsupported/lib /usr/local/lib /usr/X386/lib /usr/X11R6/lib /usr/X11R5/lib /usr/lib/X11R5 /usr/lib/X11R4 /usr/openwin/lib /usr/X11/lib /usr/sww/X11/lib" + for i in $dirs ; do + if test -r $i/libX11.a -o -r $i/libX11.so -o -r $i/libX11.sl; then + AC_MSG_RESULT($i) + XLIBSW="-L$i -lX11" + x_libraries="$i" + break + fi + done + else + if test "$x_libraries" = ""; then + XLIBSW=-lX11 + else + XLIBSW="-L$x_libraries -lX11" + fi + fi + if test "$XLIBSW" = nope ; then + AC_CHECK_LIB(Xwindow, XCreateWindow, XLIBSW=-lXwindow) + fi + if test "$XLIBSW" = nope ; then + AC_MSG_RESULT(couldn't find any! Using -lX11.) + XLIBSW=-lX11 + fi +]) +#-------------------------------------------------------------------- +# SC_BLOCKING_STYLE +# +# 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. +# +# Arguments: +# none +# +# Results: +# +# Defines some of the following vars: +# HAVE_SYS_IOCTL_H +# HAVE_SYS_FILIO_H +# USE_FIONBIO +# O_NONBLOCK +# +#-------------------------------------------------------------------- + +AC_DEFUN(SC_BLOCKING_STYLE, [ + AC_CHECK_HEADERS(sys/ioctl.h) + AC_CHECK_HEADERS(sys/filio.h) + AC_MSG_CHECKING([FIONBIO vs. O_NONBLOCK for nonblocking I/O]) + if test -f /usr/lib/NextStep/software_version; then + system=NEXTSTEP-`awk '/3/,/3/' /usr/lib/NextStep/software_version` + else + system=`uname -s`-`uname -r` + if test "$?" -ne 0 ; then + system=unknown + else + # Special check for weird MP-RAS system (uname returns weird + # results, and the version is kept in special file). + + if test -r /etc/.relid -a "X`uname -n`" = "X`uname -s`" ; then + system=MP-RAS-`awk '{print $3}' /etc/.relid'` + fi + if test "`uname -s`" = "AIX" ; then + system=AIX-`uname -v`.`uname -r` + fi + fi + fi + case $system in + # There used to be code here to use FIONBIO under AIX. However, it + # was reported that FIONBIO doesn't work under AIX 3.2.5. Since + # using O_NONBLOCK seems fine under AIX 4.*, I removed the FIONBIO + # code (JO, 5/31/97). + + OSF*) + AC_DEFINE(USE_FIONBIO) + AC_MSG_RESULT(FIONBIO) + ;; + SunOS-4*) + AC_DEFINE(USE_FIONBIO) + AC_MSG_RESULT(FIONBIO) + ;; + ULTRIX-4.*) + AC_DEFINE(USE_FIONBIO) + AC_MSG_RESULT(FIONBIO) + ;; + *) + AC_MSG_RESULT(O_NONBLOCK) + ;; + esac +]) + +#-------------------------------------------------------------------- +# SC_HAVE_VFORK +# +# Check to see whether the system provides a vfork kernel call. +# If not, then use fork instead. Also, check for a problem with +# vforks and signals that can cause core dumps if a vforked child +# resets a signal handler. If the problem exists, then use fork +# instead of vfork. +# +# Arguments: +# none +# +# Results: +# +# Defines some of the following vars: +# vfork (=fork) +# +#-------------------------------------------------------------------- + +AC_DEFUN(SC_HAVE_VFORK, [ + AC_TYPE_SIGNAL() + AC_CHECK_FUNC(vfork, tcl_ok=1, tcl_ok=0) + if test "$tcl_ok" = 1; then + AC_MSG_CHECKING([vfork/signal bug]); + AC_TRY_RUN([ +#include <stdio.h> +#include <signal.h> +#include <sys/wait.h> +int gotSignal = 0; +sigProc(sig) + int sig; +{ + gotSignal = 1; +} +main() +{ + int pid, sts; + (void) signal(SIGCHLD, sigProc); + pid = vfork(); + if (pid < 0) { + exit(1); + } else if (pid == 0) { + (void) signal(SIGCHLD, SIG_DFL); + _exit(0); + } else { + (void) wait(&sts); + } + exit((gotSignal) ? 0 : 1); +}], tcl_ok=1, tcl_ok=0, tcl_ok=0) + + if test "$tcl_ok" = 1; then + AC_MSG_RESULT(ok) + else + AC_MSG_RESULT([buggy, using fork instead]) + fi + fi + rm -f core + if test "$tcl_ok" = 0; then + AC_DEFINE(vfork, fork) + fi +]) + +#-------------------------------------------------------------------- +# SC_TIME_HANLDER +# +# Checks how the system deals with time.h, what time structures +# are used on the system, and what fields the structures have. +# +# Arguments: +# none +# +# Results: +# +# Defines some of the following vars: +# USE_DELTA_FOR_TZ +# HAVE_TM_GMTOFF +# HAVE_TM_TZADJ +# HAVE_TIMEZONE_VAR +# +#-------------------------------------------------------------------- + +AC_DEFUN(SC_TIME_HANDLER, [ + AC_CHECK_HEADERS(sys/time.h) + AC_HEADER_TIME + AC_STRUCT_TIMEZONE + + AC_MSG_CHECKING([tm_tzadj in struct tm]) + AC_TRY_COMPILE([#include <time.h>], [struct tm tm; tm.tm_tzadj;], + [AC_DEFINE(HAVE_TM_TZADJ) + AC_MSG_RESULT(yes)], + AC_MSG_RESULT(no)) + + AC_MSG_CHECKING([tm_gmtoff in struct tm]) + AC_TRY_COMPILE([#include <time.h>], [struct tm tm; tm.tm_gmtoff;], + [AC_DEFINE(HAVE_TM_GMTOFF) + AC_MSG_RESULT(yes)], + AC_MSG_RESULT(no)) + + # + # Its important to include time.h in this check, as some systems + # (like convex) have timezone functions, etc. + # + have_timezone=no + AC_MSG_CHECKING([long timezone variable]) + AC_TRY_COMPILE([#include <time.h>], + [extern long timezone; + timezone += 1; + exit (0);], + [have_timezone=yes + AC_DEFINE(HAVE_TIMEZONE_VAR) + AC_MSG_RESULT(yes)], + AC_MSG_RESULT(no)) + + # + # On some systems (eg IRIX 6.2), timezone is a time_t and not a long. + # + if test "$have_timezone" = no; then + AC_MSG_CHECKING([time_t timezone variable]) + AC_TRY_COMPILE([#include <time.h>], + [extern time_t timezone; + timezone += 1; + exit (0);], + [AC_DEFINE(HAVE_TIMEZONE_VAR) + AC_MSG_RESULT(yes)], + AC_MSG_RESULT(no)) + fi + + # + # AIX does not have a timezone field in struct tm. When the AIX bsd + # library is used, the timezone global and the gettimeofday methods are + # to be avoided for timezone deduction instead, we deduce the timezone + # by comparing the localtime result on a known GMT value. + # + + if test "`uname -s`" = "AIX" ; then + AC_CHECK_LIB(bsd, gettimeofday, libbsd=yes) + if test $libbsd = yes; then + AC_DEFINE(USE_DELTA_FOR_TZ) + fi + fi +]) + +#-------------------------------------------------------------------- +# SC_BUGGY_STRTOD +# +# Under Solaris 2.4, strtod returns the wrong value for the +# terminating character under some conditions. Check for this +# and if the problem exists use a substitute procedure +# "fixstrtod" (provided by Tcl) that corrects the error. +# +# Arguments: +# none +# +# Results: +# +# Might defines some of the following vars: +# strtod (=fixstrtod) +# +#-------------------------------------------------------------------- + +AC_DEFUN(SC_BUGGY_STRTOD, [ + AC_CHECK_FUNC(strtod, tk_strtod=1, tk_strtod=0) + if test "$tk_strtod" = 1; then + AC_MSG_CHECKING([for Solaris 2.4 strtod bug]) + AC_TRY_RUN([ + extern double strtod(); + int main() + { + char *string = "NaN"; + char *term; + strtod(string, &term); + if ((term != string) && (term[-1] == 0)) { + exit(1); + } + exit(0); + }], tk_ok=1, tk_ok=0, tk_ok=0) + if test "$tk_ok" = 1; then + AC_MSG_RESULT(ok) + else + AC_MSG_RESULT(buggy) + AC_DEFINE(strtod, fixstrtod) + fi + fi +]) + +#-------------------------------------------------------------------- +# SC_TCL_LINK_LIBS +# +# Search for the libraries needed to link the Tcl shell. +# Things like the math library (-lm) and socket stuff (-lsocket vs. +# -lnsl) are dealt with here. +# +# Arguments: +# Requires the following vars to be set in the Makefile: +# DL_LIBS +# LIBS +# MATH_LIBS +# +# Results: +# +# Subst's the following var: +# TCL_LIBS +# MATH_LIBS +# +# Might append to the following vars: +# LIBS +# +# Might define the following vars: +# HAVE_NET_ERRNO_H +# +#-------------------------------------------------------------------- + +AC_DEFUN(SC_TCL_LINK_LIBS, [ + #-------------------------------------------------------------------- + # On a few very rare systems, all of the libm.a stuff is + # already in libc.a. Set compiler flags accordingly. + # Also, Linux requires the "ieee" library for math to work + # right (and it must appear before "-lm"). + #-------------------------------------------------------------------- + + AC_CHECK_FUNC(sin, MATH_LIBS="", MATH_LIBS="-lm") + AC_CHECK_LIB(ieee, main, [MATH_LIBS="-lieee $MATH_LIBS"]) + + #-------------------------------------------------------------------- + # On AIX systems, libbsd.a has to be linked in to support + # non-blocking file IO. This library has to be linked in after + # the MATH_LIBS or it breaks the pow() function. The way to + # insure proper sequencing, is to add it to the tail of MATH_LIBS. + # This library also supplies gettimeofday. + #-------------------------------------------------------------------- + + libbsd=no + if test "`uname -s`" = "AIX" ; then + AC_CHECK_LIB(bsd, gettimeofday, libbsd=yes) + if test $libbsd = yes; then + MATH_LIBS="$MATH_LIBS -lbsd" + fi + fi + + + #-------------------------------------------------------------------- + # Interactive UNIX requires -linet instead of -lsocket, plus it + # needs net/errno.h to define the socket-related error codes. + #-------------------------------------------------------------------- + + AC_CHECK_LIB(inet, main, [LIBS="$LIBS -linet"]) + AC_CHECK_HEADER(net/errno.h, AC_DEFINE(HAVE_NET_ERRNO_H)) + + #-------------------------------------------------------------------- + # Check for the existence of the -lsocket and -lnsl libraries. + # The order here is important, so that they end up in the right + # order in the command line generated by make. Here are some + # special considerations: + # 1. Use "connect" and "accept" to check for -lsocket, and + # "gethostbyname" to check for -lnsl. + # 2. Use each function name only once: can't redo a check because + # autoconf caches the results of the last check and won't redo it. + # 3. Use -lnsl and -lsocket only if they supply procedures that + # aren't already present in the normal libraries. This is because + # IRIX 5.2 has libraries, but they aren't needed and they're + # bogus: they goof up name resolution if used. + # 4. On some SVR4 systems, can't use -lsocket without -lnsl too. + # To get around this problem, check for both libraries together + # if -lsocket doesn't work by itself. + #-------------------------------------------------------------------- + + tcl_checkBoth=0 + AC_CHECK_FUNC(connect, tcl_checkSocket=0, tcl_checkSocket=1) + if test "$tcl_checkSocket" = 1; then + AC_CHECK_LIB(socket, main, LIBS="$LIBS -lsocket", tcl_checkBoth=1) + fi + if test "$tcl_checkBoth" = 1; then + tk_oldLibs=$LIBS + LIBS="$LIBS -lsocket -lnsl" + AC_CHECK_FUNC(accept, tcl_checkNsl=0, [LIBS=$tk_oldLibs]) + fi + AC_CHECK_FUNC(gethostbyname, , AC_CHECK_LIB(nsl, main, + [LIBS="$LIBS -lnsl"])) + + # Don't perform the eval of the libraries here because DL_LIBS + # won't be set until we call SC_CONFIG_CFLAGS + + TCL_LIBS='${DL_LIBS} ${LIBS} ${MATH_LIBS}' + AC_SUBST(TCL_LIBS) + AC_SUBST(MATH_LIBS) +]) |