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archie/tk4.2/unix/configure.in
Mario Fetka b2af3b41bd Update tcl/tk for tcl-dp
2024-05-27 16:40:40 +02:00

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dnl This file is an input file used by the GNU "autoconf" program to
dnl generate the file "configure", which is run during Tk installation
dnl to configure the system for the local environment.
AC_INIT(../generic/tk.h)
# SCCS: @(#) configure.in 1.68 96/10/02 14:04:05
TK_VERSION=4.2
TK_MAJOR_VERSION=4
TK_MINOR_VERSION=2
VERSION=${TK_VERSION}
if test "${prefix}" = "NONE"; then
prefix=/usr/local
fi
if test "${exec_prefix}" = "NONE"; then
exec_prefix=$prefix
fi
AC_PROG_RANLIB
AC_ARG_ENABLE(gcc, [ --enable-gcc allow use of gcc if available],
[tk_ok=$enableval], [tkl_ok=no])
if test "$tk_ok" = "yes"; then
AC_PROG_CC
else
CC=${CC-cc}
AC_SUBST(CC)
fi
AC_C_CROSS
AC_HAVE_HEADERS(unistd.h limits.h)
#--------------------------------------------------------------------
# See if there was a command-line option for where Tcl is; if
# not, assume that its top-level directory is a sibling of ours.
#--------------------------------------------------------------------
AC_ARG_WITH(tcl, [ --with-tcl=DIR use Tcl 7.6 binaries from DIR],
TCL_BIN_DIR=$withval, TCL_BIN_DIR=`cd ../../tcl7.6/unix; pwd`)
if test ! -d $TCL_BIN_DIR; then
AC_MSG_ERROR(Tcl directory $TCL_BIN_DIR doesn't exist)
fi
if test ! -f $TCL_BIN_DIR/Makefile; then
AC_MSG_ERROR(There's no Makefile in $TCL_BIN_DIR; perhaps you didn't specify the Tcl *build* directory (not the toplevel Tcl directory) or you forgot to configure Tcl?)
fi
#--------------------------------------------------------------------
# Read in configuration information generated by Tcl for shared
# libraries, and arrange for it to be substituted into our
# Makefile.
#--------------------------------------------------------------------
file=$TCL_BIN_DIR/tclConfig.sh
. $file
SHLIB_CFLAGS=$TCL_SHLIB_CFLAGS
SHLIB_LD=$TCL_SHLIB_LD
SHLIB_LD_LIBS=$TCL_SHLIB_LD_LIBS
SHLIB_SUFFIX=$TCL_SHLIB_SUFFIX
SHLIB_VERSION=$TCL_SHLIB_VERSION
DL_LIBS=$TCL_DL_LIBS
LD_FLAGS=$TCL_LD_FLAGS
TK_LD_SEARCH_FLAGS=$TCL_LD_SEARCH_FLAGS
#--------------------------------------------------------------------
# Supply a substitute for stdlib.h if it doesn't define strtol,
# strtoul, or strtod (which it doesn't in some versions of SunOS).
#--------------------------------------------------------------------
AC_MSG_CHECKING(stdlib.h)
AC_HEADER_EGREP(strtol, stdlib.h, tk_ok=yes, tk_ok=no)
AC_HEADER_EGREP(strtoul, stdlib.h, , tk_ok=no)
AC_HEADER_EGREP(strtod, stdlib.h, , tk_ok=no)
if test $tk_ok = no; then
AC_DEFINE(NO_STDLIB_H)
fi
AC_MSG_RESULT($tk_ok)
#--------------------------------------------------------------------
# Check for various typedefs and provide substitutes if
# they don't exist.
#--------------------------------------------------------------------
AC_MODE_T
AC_PID_T
AC_SIZE_T
AC_UID_T
#--------------------------------------------------------------------
# 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.
#--------------------------------------------------------------------
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/include/X11R4 /usr/X11R5/include /usr/include/X11R5 /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/lib/X11R4 /usr/X11R5/lib /usr/lib/X11R5 /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
#--------------------------------------------------------------------
# If the X library binaries are in a non-standard directory, and
# if a mechanism such as -R is available on this platform for
# specifying a runtime search path for shared libraries, add the X
# library location into that search path.
#--------------------------------------------------------------------
if test "$x_libraries" != "" -a "$TK_LD_SEARCH_FLAGS" != ""; then
tk_tmp=`sed -e "s|\\\${LIB_RUNTIME_DIR}|$x_libraries|" << EOF
$TK_LD_SEARCH_FLAGS
EOF`
TK_LD_SEARCH_FLAGS="$TK_LD_SEARCH_FLAGS $tk_tmp"
fi
#--------------------------------------------------------------------
# Check for the existence of various libraries. The order here
# is important, so that then end up in the right order in the
# command line generated by make. The -lsocket and -lnsl libraries
# require a couple of special tricks:
# 1. Use "connect" and "accept" to check for -lsocket, and
# "gethostbyname" to check for -lnsl.
# 2. Use each function name only once: can't redo a check because
# autoconf caches the results of the last check and won't redo it.
# 3. Use -lnsl and -lsocket only if they supply procedures that
# aren't already present in the normal libraries. This is because
# IRIX 5.2 has libraries, but they aren't needed and they're
# bogus: they goof up name resolution if used.
# 4. On some SVR4 systems, can't use -lsocket without -lnsl too.
# To get around this problem, check for both libraries together
# if -lsocket doesn't work by itself.
#--------------------------------------------------------------------
AC_CHECK_LIB(Xbsd, main, [LIBS="$LIBS -lXbsd"])
tk_checkBoth=0
AC_CHECK_FUNC(connect, tk_checkSocket=0, tk_checkSocket=1)
if test "$tk_checkSocket" = 1; then
AC_CHECK_LIB(socket, main, LIBS="$LIBS -lsocket", tk_checkBoth=1)
fi
if test "$tk_checkBoth" = 1; then
tk_oldLibs=$LIBS
LIBS="$LIBS -lsocket -lnsl"
AC_CHECK_FUNC(accept, tk_checkNsl=0, [LIBS=$tk_oldLibs])
fi
AC_CHECK_FUNC(gethostbyname, , AC_CHECK_LIB(nsl, main, [LIBS="$LIBS -lnsl"]))
#--------------------------------------------------------------------
# One more check related to the X libraries. The standard releases
# of Ultrix don't support the "xauth" mechanism, so send won't work
# unless TK_NO_SECURITY is defined. However, there are usually copies
# of the MIT X server available as well, which do support xauth.
# Check for the MIT stuff and use it if it exists.
#
# Note: can't use ac_check_lib macro (at least, not in Autoconf 2.1)
# because it can't deal with the "-" in the library name.
#--------------------------------------------------------------------
if test -d /usr/include/mit ; then
AC_MSG_CHECKING([MIT X libraries])
tk_oldCFlags=$CFLAGS
CFLAGS="$CFLAGS -I/usr/include/mit"
tk_oldLibs=$LIBS
LIBS="$LIBS -lX11-mit"
AC_TRY_LINK([
#include <X11/Xlib.h>
], [
XOpenDisplay(0);
], [
AC_MSG_RESULT(yes)
XLIBSW="-lX11-mit"
XINCLUDES="-I/usr/include/mit"
], AC_MSG_RESULT(no))
CFLAGS=$tk_oldCFlags
LIBS=$tk_oldLibs
fi
#--------------------------------------------------------------------
# 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").
#--------------------------------------------------------------------
MATH_LIBS=""
AC_CHECK_FUNC(sin, , MATH_LIBS="-lm")
AC_CHECK_LIB(ieee, main, [MATH_LIBS="-lieee $MATH_LIBS"])
#--------------------------------------------------------------------
# If this system doesn't have a memmove procedure, use memcpy
# instead.
#--------------------------------------------------------------------
AC_CHECK_FUNC(memmove, , [AC_DEFINE(memmove, memcpy)])
#--------------------------------------------------------------------
# Figure out whether "char" is unsigned. If so, set a
# #define for __CHAR_UNSIGNED__.
#--------------------------------------------------------------------
AC_C_CHAR_UNSIGNED
#--------------------------------------------------------------------
# Under Solaris 2.4, strtod returns the wrong value for the
# terminating character under some conditions. Check for this
# and if the problem exists use a substitute procedure
# "fixstrtod" (provided by Tcl) that corrects the error.
#--------------------------------------------------------------------
AC_CHECK_FUNC(strtod, tk_strtod=1, tk_strtod=0)
if test "$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 "$tk_ok" = 1; then
AC_MSG_RESULT(ok)
else
AC_MSG_RESULT(buggy)
AC_DEFINE(strtod, fixstrtod)
fi
fi
#--------------------------------------------------------------------
# The statements below define a collection of symbols related to
# building libtk as a shared library instead of a static library.
#--------------------------------------------------------------------
AC_ARG_ENABLE(shared,
[ --enable-shared build libtk as a shared library],
[ok=$enableval], [ok=no])
if test "$ok" = "yes" -a "${SHLIB_SUFFIX}" != ""; then
TK_SHLIB_CFLAGS="${SHLIB_CFLAGS}"
eval "TK_LIB_FILE=libtk${TCL_SHARED_LIB_SUFFIX}"
MAKE_LIB="\${SHLIB_LD} -o ${TK_LIB_FILE} \${OBJS} ${SHLIB_LD_LIBS}"
RANLIB=":"
else
TK_SHLIB_CFLAGS=""
eval "TK_LIB_FILE=libtk${TCL_UNSHARED_LIB_SUFFIX}"
MAKE_LIB="ar cr ${TK_LIB_FILE} \${OBJS}"
fi
# Note: in the following variable, it's important to use the absolute
# path name of the Tcl directory rather than "..": this is because
# AIX remembers this path and will attempt to use it at run-time to look
# up the Tcl library.
if test "${TCL_LIB_VERSIONS_OK}" = "ok"; then
TK_BUILD_LIB_SPEC="-L`pwd` -ltk${VERSION}"
TK_LIB_SPEC="-L${exec_prefix}/lib -ltk${VERSION}"
else
TK_BUILD_LIB_SPEC="-L`pwd` -ltk`echo ${VERSION} | tr -d .`"
TK_LIB_SPEC="-L${exec_prefix}/lib -ltk`echo ${VERSION} | tr -d .`"
fi
AC_SUBST(DL_LIBS)
AC_SUBST(LD_FLAGS)
AC_SUBST(MATH_LIBS)
AC_SUBST(MAKE_LIB)
AC_SUBST(SHLIB_CFLAGS)
AC_SUBST(SHLIB_LD)
AC_SUBST(SHLIB_LD_LIBS)
AC_SUBST(SHLIB_SUFFIX)
AC_SUBST(SHLIB_VERSION)
AC_SUBST(TCL_BIN_DIR)
AC_SUBST(TCL_BUILD_LIB_SPEC)
AC_SUBST(TCL_SRC_DIR)
AC_SUBST(TCL_VERSION)
AC_SUBST(TK_BUILD_LIB_SPEC)
AC_SUBST(TK_LD_SEARCH_FLAGS)
AC_SUBST(TK_LIB_FILE)
AC_SUBST(TK_LIB_SPEC)
AC_SUBST(TK_MAJOR_VERSION)
AC_SUBST(TK_MINOR_VERSION)
AC_SUBST(TK_SHLIB_CFLAGS)
AC_SUBST(TK_VERSION)
AC_SUBST(XINCLUDES)
AC_SUBST(XLIBSW)
AC_OUTPUT(Makefile tkConfig.sh)
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