[GRASS5] GRASS 5.0.0pre1 compilation on HP-UX
Eric Mitchell
emitchell at altaira.com
Fri May 25 12:19:17 EDT 2001
I don't think that autoconf likes multiple directories for standard
--with-xxx-includes/libs settings. I think the "proper" thing
would be to use separate --with-tcl=/path/to/tclConfig.sh and
--with-tk=/path/to/tkConfig.sh options. The xxxConfig.sh scripts
set up the required include directories, libraries, linker flags,
etc. The autoconf script would source the xxxConfig.sh script,
and substitute for the defined variables in the appropriate .in
files. I've attached a tcl.m4 autoconf macro file that deals
with --with-tcl and --with-tk options.
When I ran into problems like these, I used to just fix the
inevitable makefile problems as i found them.
--
+=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=+
| Eric B. Mitchell mailto:emitchell at altaira.com |
| tel: (301) 809 - 3534 Altair Aerospace Corporation |
| tel: (800) 7 - ALTAIR 4201 Northview Dr. Suite 410 |
| fax: (301) 805 - 8122 Bowie, MD 20716 |
+=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=+
,___
/"\ / o=\ /"""---===/
/ \_/ \__/ ---===/
| //\ || /""TT""/ //\ || ||""\
| // \ || || // \ || ||__/
| //--==\ |L--/ || //--==\ || || "=,
\ ---===/
\____---===/
-------------- next part --------------
#------------------------------------------------------------------------
# SC_PATH_TCLCONFIG --
#
# Locate the tclConfig.sh file and perform a sanity check on
# the Tcl compile flags
#
# Arguments:
# none
#
# Results:
#
# Adds the following arguments to configure:
# --with-tcl=...
#
# Defines the following vars:
# TCL_BIN_DIR Full path to the directory containing
# the tclConfig.sh file
#------------------------------------------------------------------------
AC_DEFUN(SC_PATH_TCLCONFIG, [
#
# Ok, lets find the tcl configuration
# First, look for one uninstalled.
# the alternative search directory is invoked by --with-tcl
#
if test x"${no_tcl}" = x ; then
# we reset no_tcl in case something fails here
no_tcl=true
AC_ARG_WITH(tcl, [ --with-tcl directory containing tcl configuration (tclConfig.sh)], with_tclconfig=${withval})
AC_MSG_CHECKING([for Tcl configuration])
AC_CACHE_VAL(ac_cv_c_tclconfig,[
# First check to see if --with-tclconfig was specified.
if test x"${with_tclconfig}" != x ; then
if test -f "${with_tclconfig}/tclConfig.sh" ; then
ac_cv_c_tclconfig=`(cd ${with_tclconfig}; pwd)`
else
AC_MSG_ERROR([${with_tclconfig} directory doesn't contain tclConfig.sh])
fi
fi
# then check for a private Tcl installation
if test x"${ac_cv_c_tclconfig}" = x ; then
for i in \
../tcl \
`ls -dr ../tcl[[8-9]].[[0-9]]* 2>/dev/null` \
../../tcl \
`ls -dr ../../tcl[[8-9]].[[0-9]]* 2>/dev/null` \
../../../tcl \
`ls -dr ../../../tcl[[8-9]].[[0-9]]* 2>/dev/null` ; do
if test -f "$i/unix/tclConfig.sh" ; then
ac_cv_c_tclconfig=`(cd $i/unix; pwd)`
break
fi
done
fi
# check in a few common install locations
if test x"${ac_cv_c_tclconfig}" = 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/tclConfig.sh" ; then
ac_cv_c_tclconfig=`(cd $i; pwd)`
break
fi
done
fi
# check in a few other private locations
if test x"${ac_cv_c_tcliconfig}" = x ; then
for i in \
${srcdir}/../tcl \
`ls -dr ${srcdir}/../tcl[[8-9]].[[0-9]]* 2>/dev/null` ; do
if test -f "$i/unix/tclConfig.sh" ; then
ac_cv_c_tclconfig=`(cd $i/unix; pwd)`
break
fi
done
fi
])
if test x"${ac_cv_c_tclconfig}" = x ; then
TCL_BIN_DIR="# no Tcl configs found"
AC_MSG_WARN(Can't find Tcl configuration definitions)
exit 0
else
no_tcl=
TCL_BIN_DIR=${ac_cv_c_tclconfig}
AC_MSG_RESULT(found $TCL_BIN_DIR/tclConfig.sh)
fi
fi
])
#------------------------------------------------------------------------
# SC_PATH_TKCONFIG --
#
# Locate the tkConfig.sh file
#
# Arguments:
# none
#
# Results:
#
# Adds the following arguments to configure:
# --with-tk=...
#
# Defines the following vars:
# TK_BIN_DIR Full path to the directory containing
# the tkConfig.sh file
#------------------------------------------------------------------------
AC_DEFUN(SC_PATH_TKCONFIG, [
#
# Ok, lets find the tk configuration
# First, look for one uninstalled.
# the alternative search directory is invoked by --with-tk
#
if test x"${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
# 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
])
#------------------------------------------------------------------------
# SC_LOAD_TCLCONFIG --
#
# Load the tclConfig.sh file
#
# Arguments:
#
# Requires the following vars to be set:
# TCL_BIN_DIR
#
# Results:
#
# Subst the following vars:
# TCL_BIN_DIR
# TCL_SRC_DIR
# TCL_LIB_FILE
#
#------------------------------------------------------------------------
AC_DEFUN(SC_LOAD_TCLCONFIG, [
AC_MSG_CHECKING([for existence of $TCL_BIN_DIR/tclConfig.sh])
if test -f "$TCL_BIN_DIR/tclConfig.sh" ; then
AC_MSG_RESULT([loading])
. $TCL_BIN_DIR/tclConfig.sh
else
AC_MSG_RESULT([file not found])
fi
#
# The eval is required to do the TCL_DBGX substitution in the
# TCL_LIB_FILE variable
#
eval TCL_LIB_FILE=${TCL_LIB_FILE}
eval TCL_LIB_FLAG=${TCL_LIB_FLAG}
AC_SUBST(TCL_BIN_DIR)
AC_SUBST(TCL_SRC_DIR)
AC_SUBST(TCL_LIB_FILE)
])
#------------------------------------------------------------------------
# SC_LOAD_TKCONFIG --
#
# Load the tkConfig.sh file
#
# Arguments:
#
# Requires the following vars to be set:
# TK_BIN_DIR
#
# Results:
#
# Sets the following vars that should be in tkConfig.sh:
# TK_BIN_DIR
#------------------------------------------------------------------------
AC_DEFUN(SC_LOAD_TKCONFIG, [
AC_MSG_CHECKING([for existence of $TCLCONFIG])
if test -f "$TK_BIN_DIR/tkConfig.sh" ; then
AC_MSG_CHECKING([loading $TK_BIN_DIR/tkConfig.sh])
. $TK_BIN_DIR/tkConfig.sh
else
AC_MSG_RESULT([could not find $TK_BIN_DIR/tkConfig.sh])
fi
AC_SUBST(TK_BIN_DIR)
AC_SUBST(TK_SRC_DIR)
AC_SUBST(TK_LIB_FILE)
])
#------------------------------------------------------------------------
# SC_ENABLE_GCC --
#
# Allows the use of GCC if available
#
# Arguments:
# none
#
# Results:
#
# Adds the following arguments to configure:
# --enable-gcc
#
# Sets the following vars:
# CC Command to use for the compiler
#------------------------------------------------------------------------
AC_DEFUN(SC_ENABLE_GCC, [
AC_ARG_ENABLE(gcc, [ --enable-gcc allow use of gcc if available [--disable-gcc]],
[ok=$enableval], [ok=no])
if test "$ok" = "yes"; then
CC=gcc
AC_PROG_CC
else
CC=${CC-cc}
fi
])
#------------------------------------------------------------------------
# SC_ENABLE_SHARED --
#
# Allows the building of shared libraries
#
# Arguments:
# none
#
# Results:
#
# Adds the following arguments to configure:
# --enable-shared=yes|no
#
# Defines the following vars:
# STATIC_BUILD Used for building import/export libraries
# on Windows.
#
# Sets the following vars:
# SHARED_BUILD Value of 1 or 0
#------------------------------------------------------------------------
AC_DEFUN(SC_ENABLE_SHARED, [
AC_MSG_CHECKING([how to build libraries])
AC_ARG_ENABLE(shared,
[ --enable-shared build and link with shared libraries [--enable-shared]],
[tcl_ok=$enableval], [tcl_ok=yes])
if test "${enable_shared+set}" = set; then
enableval="$enable_shared"
tcl_ok=$enableval
else
tcl_ok=yes
fi
if test "$tcl_ok" = "yes" ; then
AC_MSG_RESULT([shared])
SHARED_BUILD=1
else
AC_MSG_RESULT([static])
SHARED_BUILD=0
AC_DEFINE(STATIC_BUILD)
fi
])
#------------------------------------------------------------------------
# SC_ENABLE_THREADS --
#
# Specify if thread support should be enabled
#
# Arguments:
# none
#
# Results:
#
# Adds the following arguments to configure:
# --enable-threads
#
# Sets the following vars:
# THREADS_LIBS Thread library(s)
#
# Defines the following vars:
# TCL_THREADS
# _REENTRANT
#
#------------------------------------------------------------------------
AC_DEFUN(SC_ENABLE_THREADS, [
AC_MSG_CHECKING(for building with threads)
AC_ARG_ENABLE(threads, [ --enable-threads build with threads],
[tcl_ok=$enableval], [tcl_ok=no])
if test "$tcl_ok" = "yes"; then
AC_MSG_RESULT(yes)
TCL_THREADS=1
AC_DEFINE(TCL_THREADS)
AC_DEFINE(_REENTRANT)
AC_CHECK_LIB(pthread,pthread_mutex_init,tcl_ok=yes,tcl_ok=no)
if test "$tcl_ok" = "yes"; then
# The space is needed
THREADS_LIBS=" -lpthread"
else
TCL_THREADS=0
AC_MSG_WARN("Don t know how to find pthread lib on your system - you must disable thread support or edit the LIBS in the Makefile...")
fi
else
TCL_THREADS=0
AC_MSG_RESULT(no (default))
fi
])
#------------------------------------------------------------------------
# SC_ENABLE_SYMBOLS --
#
# Specify if debugging symbols should be used
#
# Arguments:
# none
#
# Requires the following vars to be set:
# CFLAGS_DEBUG
# CFLAGS_OPTIMIZE
# LDFLAGS_DEBUG
# LDFLAGS_OPTIMIZE
#
# Results:
#
# Adds the following arguments to configure:
# --enable-symbols
#
# Defines the following vars:
# CFLAGS_DEFAULT Sets to CFLAGS_DEBUG if true
# Sets to CFLAGS_OPTIMIZE if false
# LDFLAGS_DEFAULT Sets to LDFLAGS_DEBUG if true
# Sets to LDFLAGS_OPTIMIZE if false
# DBGX Debug library extension
#
#------------------------------------------------------------------------
AC_DEFUN(SC_ENABLE_SYMBOLS, [
AC_MSG_CHECKING([for build with symbols])
AC_ARG_ENABLE(symbols, [ --enable-symbols build with debugging symbols [--disable-symbols]], [tcl_ok=$enableval], [tcl_ok=no])
if test "$tcl_ok" = "yes"; then
CFLAGS_DEFAULT="${CFLAGS_DEBUG}"
LDFLAGS_DEFAULT="${LDFLAGS_DEBUG}"
DBGX=g
AC_MSG_RESULT([yes])
else
CFLAGS_DEFAULT="${CFLAGS_OPTIMIZE}"
LDFLAGS_DEFAULT="${LDFLAGS_OPTIMIZE}"
DBGX=""
AC_MSG_RESULT([no])
fi
])
#--------------------------------------------------------------------
# SC_CONFIG_CFLAGS
#
# Try to determine the proper flags to pass to the compiler
# for building shared libraries and other such nonsense.
#
# Arguments:
# none
#
# Results:
#
# Defines the following vars:
#
# DL_OBJS - Name of the object file that implements dynamic
# loading for Tcl on this system.
# DL_LIBS - Library file(s) to include in tclsh and other base
# applications in order for the "load" command to work.
# LDFLAGS - Flags to pass to the compiler when linking object
# files into an executable application binary such
# as tclsh.
# LD_SEARCH_FLAGS-Flags to pass to ld, such as "-R /usr/local/tcl/lib",
# that tell the run-time dynamic linker where to look
# for shared libraries such as libtcl.so. Depends on
# the variable LIB_RUNTIME_DIR in the Makefile.
# MAKE_LIB - Command to execute to build the Tcl library;
# differs depending on whether or not Tcl is being
# compiled as a shared library.
# SHLIB_CFLAGS - Flags to pass to cc when compiling the components
# of a shared library (may request position-independent
# code, among other things).
# SHLIB_LD - Base command to use for combining object files
# into a shared library.
# SHLIB_LD_LIBS - Dependent libraries for the linker to scan when
# creating shared libraries. This symbol typically
# goes at the end of the "ld" commands that build
# shared libraries. The value of the symbol is
# "${LIBS}" if all of the dependent libraries should
# be specified when creating a shared library. If
# dependent libraries should not be specified (as on
# SunOS 4.x, where they cause the link to fail, or in
# general if Tcl and Tk aren't themselves shared
# libraries), then this symbol has an empty string
# as its value.
# SHLIB_SUFFIX - Suffix to use for the names of dynamically loadable
# extensions. An empty string means we don't know how
# to use shared libraries on this platform.
# TCL_LIB_FILE - Name of the file that contains the Tcl library, such
# as libtcl7.8.so or libtcl7.8.a.
# TCL_LIB_SUFFIX -Specifies everything that comes after the "libtcl"
# in the shared library name, using the $VERSION variable
# to put the version in the right place. This is used
# by platforms that need non-standard library names.
# Examples: ${VERSION}.so.1.1 on NetBSD, since it needs
# to have a version after the .so, and ${VERSION}.a
# on AIX, since the Tcl shared library needs to have
# a .a extension whereas shared objects for loadable
# extensions have a .so extension. Defaults to
# ${VERSION}${SHLIB_SUFFIX}.
# TCL_NEEDS_EXP_FILE -
# 1 means that an export file is needed to link to a
# shared library.
# TCL_EXP_FILE - The name of the installed export / import file which
# should be used to link to the Tcl shared library.
# Empty if Tcl is unshared.
# TCL_BUILD_EXP_FILE -
# The name of the built export / import file which
# should be used to link to the Tcl shared library.
# Empty if Tcl is unshared.
# CFLAGS_DEBUG -
# Flags used when running the compiler in debug mode
# CFLAGS_OPTIMIZE -
# Flags used when running the compiler in optimize mode
#
# EXTRA_CFLAGS
#
# Subst's the following vars:
# DL_LIBS
# CFLAGS_DEBUG
# CFLAGS_OPTIMIZE
#--------------------------------------------------------------------
AC_DEFUN(SC_CONFIG_CFLAGS, [
# Step 0: Enable 64 bit support?
AC_MSG_CHECKING([if 64bit support is enabled])
AC_ARG_ENABLE(64bit,[ --enable-64bit enable 64bit support],,enableval="no")
if test "$enableval" = "yes"; then
AC_MSG_RESULT(Will compile with 64bit support)
do64bit=yes
else
do64bit=no
fi
AC_MSG_RESULT($do64bit)
# Step 1: set the variable "system" to hold the name and version number
# for the system. This can usually be done via the "uname" command, but
# there are a few systems, like Next, where this doesn't work.
AC_MSG_CHECKING([system version (for dynamic loading)])
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
AC_MSG_RESULT([unknown (can't find uname command)])
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 $3}' /etc/.relid'`
fi
if test "`uname -s`" = "AIX" ; then
system=AIX-`uname -v`.`uname -r`
fi
AC_MSG_RESULT($system)
fi
fi
# Step 2: check for existence of -ldl library. This is needed because
# Linux can use either -ldl or -ldld for dynamic loading.
AC_CHECK_LIB(dl, dlopen, have_dl=yes, have_dl=no)
# Step 3: set configuration options based on system name and version.
do64bit_ok=no
fullSrcDir=`cd $srcdir; pwd`
EXTRA_CFLAGS=""
TCL_EXPORT_FILE_SUFFIX=""
UNSHARED_LIB_SUFFIX=""
TCL_TRIM_DOTS='`echo ${VERSION} | tr -d .`'
ECHO_VERSION='`echo ${VERSION}`'
TCL_LIB_VERSIONS_OK=ok
CFLAGS_DEBUG=-g
CFLAGS_OPTIMIZE=-O
TCL_NEEDS_EXP_FILE=0
TCL_BUILD_EXP_FILE=""
TCL_EXP_FILE=""
STLIB_LD="ar cr"
case $system in
AIX-4.[[2-9]])
SHLIB_CFLAGS=""
SHLIB_LD="$fullSrcDir/ldAix /bin/ld -bhalt:4 -bM:SRE -bE:lib.exp -H512 -T512 -bnoentry"
SHLIB_LD_LIBS='${LIBS}'
SHLIB_SUFFIX=".so"
DL_OBJS="tclLoadDl.o"
DL_LIBS="-ldl"
LDFLAGS=""
LD_SEARCH_FLAGS='-L${LIB_RUNTIME_DIR}'
TCL_NEEDS_EXP_FILE=1
TCL_EXPORT_FILE_SUFFIX='${VERSION}\$\{DBGX\}.exp'
;;
AIX-*)
SHLIB_CFLAGS=""
SHLIB_LD="$fullSrcDir/ldAix /bin/ld -bhalt:4 -bM:SRE -bE:lib.exp -H512 -T512 -bnoentry"
SHLIB_LD_LIBS='${LIBS}'
SHLIB_SUFFIX=".so"
DL_OBJS="tclLoadDl.o"
LIBOBJS="$LIBOBJS tclLoadAix.o"
DL_LIBS="-lld"
LDFLAGS=""
LD_SEARCH_FLAGS='-L${LIB_RUNTIME_DIR}'
TCL_NEEDS_EXP_FILE=1
TCL_EXPORT_FILE_SUFFIX='${VERSION}\$\{DBGX\}.exp'
;;
BSD/OS-2.1*|BSD/OS-3*)
SHLIB_CFLAGS=""
SHLIB_LD="shlicc -r"
SHLIB_LD_LIBS='${LIBS}'
SHLIB_SUFFIX=".so"
DL_OBJS="tclLoadDl.o"
DL_LIBS="-ldl"
LDFLAGS=""
LD_SEARCH_FLAGS=""
;;
BSD/OS-4.*)
SHLIB_CFLAGS="-export-dynamic -fPIC"
SHLIB_LD="cc -shared"
SHLIB_LD_LIBS='${LIBS}'
SHLIB_SUFFIX=".so"
DL_OBJS="tclLoadDl.o"
DL_LIBS="-ldl"
LDFLAGS="-export-dynamic"
LD_SEARCH_FLAGS=""
;;
dgux*)
SHLIB_CFLAGS="-K PIC"
SHLIB_LD="cc -G"
SHLIB_LD_LIBS=""
SHLIB_SUFFIX=".so"
DL_OBJS="tclLoadDl.o"
DL_LIBS="-ldl"
LDFLAGS=""
LD_SEARCH_FLAGS=""
;;
HP-UX-*.08.*|HP-UX-*.09.*|HP-UX-*.10.*|HP-UX-*.11.*)
SHLIB_SUFFIX=".sl"
AC_CHECK_LIB(dld, shl_load, tcl_ok=yes, tcl_ok=no)
if test "$tcl_ok" = yes; then
SHLIB_CFLAGS="+z"
SHLIB_LD="ld -b"
SHLIB_LD_LIBS=""
DL_OBJS="tclLoadShl.o"
DL_LIBS="-ldld"
LDFLAGS="-Wl,-E"
LD_SEARCH_FLAGS='-Wl,+s,+b,${LIB_RUNTIME_DIR}:.'
fi
;;
IRIX-4.*)
SHLIB_CFLAGS="-G 0"
SHLIB_SUFFIX=".a"
SHLIB_LD="echo tclLdAout $CC \{$SHLIB_CFLAGS\} | `pwd`/tclsh -r -G 0"
SHLIB_LD_LIBS='${LIBS}'
DL_OBJS="tclLoadAout.o"
DL_LIBS=""
LDFLAGS="-Wl,-D,08000000"
LD_SEARCH_FLAGS='-L${LIB_RUNTIME_DIR}'
SHARED_LIB_SUFFIX='${VERSION}\$\{DBGX\}.a'
;;
IRIX-5.*|IRIX-6.*|IRIX64-6.5*)
SHLIB_CFLAGS=""
SHLIB_LD="ld -n32 -shared -rdata_shared"
SHLIB_LD_LIBS='${LIBS}'
SHLIB_SUFFIX=".so"
DL_OBJS="tclLoadDl.o"
DL_LIBS=""
LD_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}'
if test "$CC" = "gcc" -o `$CC -v 2>&1 | grep -c gcc` != "0" ; then
EXTRA_CFLAGS="-mabi=n32"
LDFLAGS="-mabi=n32"
else
case $system in
IRIX-6.3)
# Use to build 6.2 compatible binaries on 6.3.
EXTRA_CFLAGS="-n32 -D_OLD_TERMIOS"
;;
*)
EXTRA_CFLAGS="-n32"
;;
esac
LDFLAGS="-n32"
fi
;;
IRIX64-6.*)
SHLIB_CFLAGS=""
SHLIB_LD="ld -32 -shared -rdata_shared"
SHLIB_LD_LIBS='${LIBS}'
SHLIB_SUFFIX=".so"
DL_OBJS="tclLoadDl.o"
DL_LIBS=""
LDFLAGS=""
LD_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}'
;;
Linux*)
SHLIB_CFLAGS="-fPIC"
SHLIB_LD_LIBS='${LIBS}'
SHLIB_SUFFIX=".so"
# egcs-2.91.66 on Redhat Linux 6.0 generates lots of warnings
# when you inline the string and math operations. Turn this off to
# get rid of the warnings.
CFLAGS_OPTIMIZE="${CFLAGS_OPTIMIZE} -D__NO_STRING_INLINES -D__NO_MATH_INLINES"
if test "$have_dl" = yes; then
SHLIB_LD="${CC} -shared"
DL_OBJS="tclLoadDl.o"
DL_LIBS="-ldl"
LDFLAGS="-rdynamic"
LD_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}'
else
AC_CHECK_HEADER(dld.h, [
SHLIB_LD="ld -shared"
DL_OBJS="tclLoadDld.o"
DL_LIBS="-ldld"
LDFLAGS=""
LD_SEARCH_FLAGS=""])
fi
if test "`uname -m`" = "alpha" ; then
EXTRA_CFLAGS="-mieee"
fi
;;
MP-RAS-02*)
SHLIB_CFLAGS="-K PIC"
SHLIB_LD="cc -G"
SHLIB_LD_LIBS=""
SHLIB_SUFFIX=".so"
DL_OBJS="tclLoadDl.o"
DL_LIBS="-ldl"
LDFLAGS=""
LD_SEARCH_FLAGS=""
;;
MP-RAS-*)
SHLIB_CFLAGS="-K PIC"
SHLIB_LD="cc -G"
SHLIB_LD_LIBS=""
SHLIB_SUFFIX=".so"
DL_OBJS="tclLoadDl.o"
DL_LIBS="-ldl"
LDFLAGS="-Wl,-Bexport"
LD_SEARCH_FLAGS=""
;;
NetBSD-*|FreeBSD-[[1-2]].*|OpenBSD-*)
# Not available on all versions: check for include file.
AC_CHECK_HEADER(dlfcn.h, [
SHLIB_CFLAGS="-fpic"
SHLIB_LD="ld -Bshareable -x"
SHLIB_LD_LIBS=""
SHLIB_SUFFIX=".so"
DL_OBJS="tclLoadDl.o"
DL_LIBS=""
LDFLAGS=""
LD_SEARCH_FLAGS=""
SHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}\$\{DBGX\}.so.1.0'
], [
SHLIB_CFLAGS=""
SHLIB_LD="echo tclLdAout $CC \{$SHLIB_CFLAGS\} | `pwd`/tclsh -r"
SHLIB_LD_LIBS='${LIBS}'
SHLIB_SUFFIX=".a"
DL_OBJS="tclLoadAout.o"
DL_LIBS=""
LDFLAGS=""
LD_SEARCH_FLAGS='-L${LIB_RUNTIME_DIR}'
SHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}\$\{DBGX\}.a'
])
# FreeBSD doesn't handle version numbers with dots.
UNSHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}\$\{DBGX\}.a'
TCL_LIB_VERSIONS_OK=nodots
;;
FreeBSD-*)
# FreeBSD 3.* and greater have ELF.
SHLIB_CFLAGS="-fpic"
SHLIB_LD="ld -Bshareable -x"
SHLIB_LD_LIBS=""
SHLIB_SUFFIX=".so"
DL_OBJS="tclLoadDl.o"
DL_LIBS=""
LDFLAGS=""
LD_SEARCH_FLAGS=""
;;
NEXTSTEP-*)
SHLIB_CFLAGS=""
SHLIB_LD="cc -nostdlib -r"
SHLIB_LD_LIBS=""
SHLIB_SUFFIX=".so"
DL_OBJS="tclLoadNext.o"
DL_LIBS=""
LDFLAGS=""
LD_SEARCH_FLAGS=""
;;
OS/390-*)
CFLAGS_OPTIMIZE="" # Optimizer is buggy
AC_DEFINE(_OE_SOCKETS) # needed in sys/socket.h
;;
OSF1-1.0|OSF1-1.1|OSF1-1.2)
# OSF/1 1.[012] from OSF, and derivatives, including Paragon OSF/1
SHLIB_CFLAGS=""
# Hack: make package name same as library name
SHLIB_LD='ld -R -export $@:'
SHLIB_LD_LIBS=""
SHLIB_SUFFIX=".so"
DL_OBJS="tclLoadOSF.o"
DL_LIBS=""
LDFLAGS=""
LD_SEARCH_FLAGS=""
;;
OSF1-1.*)
# OSF/1 1.3 from OSF using ELF, and derivatives, including AD2
SHLIB_CFLAGS="-fpic"
SHLIB_LD="ld -shared"
SHLIB_LD_LIBS=""
SHLIB_SUFFIX=".so"
DL_OBJS="tclLoadDl.o"
DL_LIBS=""
LDFLAGS=""
LD_SEARCH_FLAGS=""
;;
OSF1-V*)
# Digital OSF/1
SHLIB_CFLAGS=""
SHLIB_LD='ld -shared -expect_unresolved "*"'
SHLIB_LD_LIBS=""
SHLIB_SUFFIX=".so"
DL_OBJS="tclLoadDl.o"
DL_LIBS=""
LDFLAGS=""
LD_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}'
;;
RISCos-*)
SHLIB_CFLAGS="-G 0"
SHLIB_LD="echo tclLdAout $CC \{$SHLIB_CFLAGS\} | `pwd`/tclsh -r -G 0"
SHLIB_LD_LIBS='${LIBS}'
SHLIB_SUFFIX=".a"
DL_OBJS="tclLoadAout.o"
DL_LIBS=""
LDFLAGS="-Wl,-D,08000000"
LD_SEARCH_FLAGS='-L${LIB_RUNTIME_DIR}'
;;
SCO_SV-3.2*)
# Note, dlopen is available only on SCO 3.2.5 and greater. However,
# this test works, since "uname -s" was non-standard in 3.2.4 and
# below.
SHLIB_CFLAGS="-Kpic -belf"
SHLIB_LD="ld -G"
SHLIB_LD_LIBS=""
SHLIB_SUFFIX=".so"
DL_OBJS="tclLoadDl.o"
DL_LIBS=""
LDFLAGS="-belf -Wl,-Bexport"
LD_SEARCH_FLAGS=""
;;
SINIX*5.4*)
SHLIB_CFLAGS="-K PIC"
SHLIB_LD="cc -G"
SHLIB_LD_LIBS=""
SHLIB_SUFFIX=".so"
DL_OBJS="tclLoadDl.o"
DL_LIBS="-ldl"
LDFLAGS=""
LD_SEARCH_FLAGS=""
;;
SunOS-4*)
SHLIB_CFLAGS="-PIC"
SHLIB_LD="ld"
SHLIB_LD_LIBS=""
SHLIB_SUFFIX=".so"
DL_OBJS="tclLoadDl.o"
DL_LIBS="-ldl"
LDFLAGS=""
LD_SEARCH_FLAGS='-L${LIB_RUNTIME_DIR}'
# SunOS can't handle version numbers with dots in them in library
# specs, like -ltcl7.5, so use -ltcl75 instead. Also, it
# requires an extra version number at the end of .so file names.
# So, the library has to have a name like libtcl75.so.1.0
SHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}\$\{DBGX\}.so.1.0'
UNSHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}\$\{DBGX\}.a'
TCL_LIB_VERSIONS_OK=nodots
;;
SunOS-5.[[0-6]]*)
SHLIB_CFLAGS="-KPIC"
SHLIB_LD="/usr/ccs/bin/ld -G -z text"
# Note: need the LIBS below, otherwise Tk won't find Tcl's
# symbols when dynamically loaded into tclsh.
SHLIB_LD_LIBS='${LIBS}'
SHLIB_SUFFIX=".so"
DL_OBJS="tclLoadDl.o"
DL_LIBS="-ldl"
LDFLAGS=""
LD_SEARCH_FLAGS='-Wl,-R,${LIB_RUNTIME_DIR}'
;;
SunOS-5*)
SHLIB_CFLAGS="-KPIC"
SHLIB_LD="/usr/ccs/bin/ld -G -z text"
LDFLAGS=""
do64bit_ok=no
if test "$do64bit" = "yes" ; then
arch=`isainfo`
if test "$arch" = "sparcv9 sparc" ; then
if test "$CC" != "gcc" -a `$CC -v 2>&1 | grep -c gcc` = "0" ; then
do64bit_ok=yes
EXTRA_CFLAGS="-xarch=v9"
LDFLAGS="-xarch=v9"
else
AC_MSG_WARN("64bit mode not supported using GCC on $system")
fi
else
AC_MSG_WARN("64bit mode only supported sparcv9 system")
fi
fi
# Note: need the LIBS below, otherwise Tk won't find Tcl's
# symbols when dynamically loaded into tclsh.
SHLIB_LD_LIBS='${LIBS}'
SHLIB_SUFFIX=".so"
DL_OBJS="tclLoadDl.o"
DL_LIBS="-ldl"
if test "$CC" = "gcc" -o `$CC -v 2>&1 | grep -c gcc` != "0" ; then
LD_SEARCH_FLAGS='-Wl,-R,${LIB_RUNTIME_DIR}'
else
LD_SEARCH_FLAGS='-R ${LIB_RUNTIME_DIR}'
fi
;;
ULTRIX-4.*)
SHLIB_CFLAGS="-G 0"
SHLIB_SUFFIX=".a"
SHLIB_LD="echo tclLdAout $CC \{$SHLIB_CFLAGS\} | `pwd`/tclsh -r -G 0"
SHLIB_LD_LIBS='${LIBS}'
DL_OBJS="tclLoadAout.o"
DL_LIBS=""
LDFLAGS="-Wl,-D,08000000"
LD_SEARCH_FLAGS='-L${LIB_RUNTIME_DIR}'
;;
UNIX_SV* | UnixWare-5*)
SHLIB_CFLAGS="-KPIC"
SHLIB_LD="cc -G"
SHLIB_LD_LIBS=""
SHLIB_SUFFIX=".so"
DL_OBJS="tclLoadDl.o"
DL_LIBS="-ldl"
# Some UNIX_SV* systems (unixware 1.1.2 for example) have linkers
# that don't grok the -Bexport option. Test that it does.
hold_ldflags=$LDFLAGS
AC_MSG_CHECKING(for ld accepts -Bexport flag)
LDFLAGS="${LDFLAGS} -Wl,-Bexport"
AC_TRY_LINK(, [int i;], found=yes, found=no)
LDFLAGS=$hold_ldflags
AC_MSG_RESULT($found)
if test $found = yes; then
LDFLAGS="-Wl,-Bexport"
else
LDFLAGS=""
fi
LD_SEARCH_FLAGS=""
;;
esac
if test "$do64bit" = "yes" -a "$do64bit_ok" = "no" ; then
AC_MSG_WARN("64bit support being disabled -- not supported on this platform")
fi
# Step 4: If pseudo-static linking is in use (see K. B. Kenny, "Dynamic
# Loading for Tcl -- What Became of It?". Proc. 2nd Tcl/Tk Workshop,
# New Orleans, LA, Computerized Processes Unlimited, 1994), then we need
# to determine which of several header files defines the a.out file
# format (a.out.h, sys/exec.h, or sys/exec_aout.h). At present, we
# support only a file format that is more or less version-7-compatible.
# In particular,
# - a.out files must begin with `struct exec'.
# - the N_TXTOFF on the `struct exec' must compute the seek address
# of the text segment
# - The `struct exec' must contain a_magic, a_text, a_data, a_bss
# and a_entry fields.
# The following compilation should succeed if and only if either sys/exec.h
# or a.out.h is usable for the purpose.
#
# Note that the modified COFF format used on MIPS Ultrix 4.x is usable; the
# `struct exec' includes a second header that contains information that
# duplicates the v7 fields that are needed.
if test "x$DL_OBJS" = "xtclLoadAout.o" ; then
AC_MSG_CHECKING(sys/exec.h)
AC_TRY_COMPILE([#include <sys/exec.h>],[
struct exec foo;
unsigned long seek;
int flag;
#if defined(__mips) || defined(mips)
seek = N_TXTOFF (foo.ex_f, foo.ex_o);
#else
seek = N_TXTOFF (foo);
#endif
flag = (foo.a_magic == OMAGIC);
return foo.a_text + foo.a_data + foo.a_bss + foo.a_entry;
], tcl_ok=usable, tcl_ok=unusable)
AC_MSG_RESULT($tcl_ok)
if test $tcl_ok = usable; then
AC_DEFINE(USE_SYS_EXEC_H)
else
AC_MSG_CHECKING(a.out.h)
AC_TRY_COMPILE([#include <a.out.h>],[
struct exec foo;
unsigned long seek;
int flag;
#if defined(__mips) || defined(mips)
seek = N_TXTOFF (foo.ex_f, foo.ex_o);
#else
seek = N_TXTOFF (foo);
#endif
flag = (foo.a_magic == OMAGIC);
return foo.a_text + foo.a_data + foo.a_bss + foo.a_entry;
], tcl_ok=usable, tcl_ok=unusable)
AC_MSG_RESULT($tcl_ok)
if test $tcl_ok = usable; then
AC_DEFINE(USE_A_OUT_H)
else
AC_MSG_CHECKING(sys/exec_aout.h)
AC_TRY_COMPILE([#include <sys/exec_aout.h>],[
struct exec foo;
unsigned long seek;
int flag;
#if defined(__mips) || defined(mips)
seek = N_TXTOFF (foo.ex_f, foo.ex_o);
#else
seek = N_TXTOFF (foo);
#endif
flag = (foo.a_midmag == OMAGIC);
return foo.a_text + foo.a_data + foo.a_bss + foo.a_entry;
], tcl_ok=usable, tcl_ok=unusable)
AC_MSG_RESULT($tcl_ok)
if test $tcl_ok = usable; then
AC_DEFINE(USE_SYS_EXEC_AOUT_H)
else
DL_OBJS=""
fi
fi
fi
fi
# Step 5: disable dynamic loading if requested via a command-line switch.
AC_ARG_ENABLE(load, [ --disable-load disallow dynamic loading and "load" command],
[tcl_ok=$enableval], [tcl_ok=yes])
if test "$tcl_ok" = "no"; then
DL_OBJS=""
fi
if test "x$DL_OBJS" != "x" ; then
BUILD_DLTEST="\$(DLTEST_TARGETS)"
else
echo "Can't figure out how to do dynamic loading or shared libraries"
echo "on this system."
SHLIB_CFLAGS=""
SHLIB_LD=""
SHLIB_SUFFIX=""
DL_OBJS="tclLoadNone.o"
DL_LIBS=""
LDFLAGS=""
LD_SEARCH_FLAGS=""
BUILD_DLTEST=""
fi
# If we're running gcc, then change the C flags for compiling shared
# libraries to the right flags for gcc, instead of those for the
# standard manufacturer compiler.
if test "$DL_OBJS" != "tclLoadNone.o" ; then
if test "$CC" = "gcc" -o `$CC -v 2>&1 | grep -c gcc` != "0" ; then
case $system in
AIX-*)
;;
BSD/OS*)
;;
IRIX*)
;;
NetBSD-*|FreeBSD-*|OpenBSD-*)
;;
RISCos-*)
;;
ULTRIX-4.*)
;;
*)
SHLIB_CFLAGS="-fPIC"
;;
esac
fi
fi
if test "$SHARED_LIB_SUFFIX" = "" ; then
SHARED_LIB_SUFFIX='${VERSION}\$\{DBGX\}${SHLIB_SUFFIX}'
fi
if test "$UNSHARED_LIB_SUFFIX" = "" ; then
UNSHARED_LIB_SUFFIX='${VERSION}\$\{DBGX\}.a'
fi
AC_SUBST(DL_LIBS)
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)
])
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