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configure.ac
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dnl
dnl configure.ac: Configure template for zsh.
dnl Process this file with autoconf to produce a configure script.
dnl
dnl Copyright (c) 1995-1997 Richard Coleman
dnl All rights reserved.
dnl
dnl Permission is hereby granted, without written agreement and without
dnl license or royalty fees, to use, copy, modify, and distribute this
dnl software and to distribute modified versions of this software for any
dnl purpose, provided that the above copyright notice and the following
dnl two paragraphs appear in all copies of this software.
dnl
dnl In no event shall Richard Coleman or the Zsh Development Group be liable
dnl to any party for direct, indirect, special, incidental, or consequential
dnl damages arising out of the use of this software and its documentation,
dnl even if Richard Coleman and the Zsh Development Group have been advised of
dnl the possibility of such damage.
dnl
dnl Richard Coleman and the Zsh Development Group specifically disclaim any
dnl warranties, including, but not limited to, the implied warranties of
dnl merchantability and fitness for a particular purpose. The software
dnl provided hereunder is on an "as is" basis, and Richard Coleman and the
dnl Zsh Development Group have no obligation to provide maintenance,
dnl support, updates, enhancements, or modifications.
dnl
AC_INIT
AC_CONFIG_SRCDIR([Src/zsh.h])
AC_PREREQ([2.69])
AC_CONFIG_HEADERS([config.h])
dnl What version of zsh are we building ?
. ${srcdir}/Config/version.mk
echo "configuring for zsh $VERSION"
dnl ----------------------------------------------
dnl CHECK FOR MACHINE/VENDOR/OPERATING SYSTEM TYPE
dnl ----------------------------------------------
dnl Find out machine type, vendor, and operating system
dnl What type of host is this?
AC_CANONICAL_HOST
AC_DEFINE_UNQUOTED(MACHTYPE, "$host_cpu",
[Define to be the machine type (microprocessor class or machine model).])
AC_DEFINE_UNQUOTED(VENDOR, "$host_vendor",
[Define to be a string corresponding the vendor of the machine.])
AC_DEFINE_UNQUOTED(OSTYPE, "$host_os",
[Define to be the name of the operating system.])
dnl -----------------------------
dnl CHECKING COMMAND LINE OPTIONS
dnl -----------------------------
dnl Handle --program-prefix, --program-suffix, etc.
zsh_ARG_PROGRAM
dnl Handle setting of compile flags (CPPFLAGS, CFLAGS, LDFLAGS, LIBS).
zsh_COMPILE_FLAGS($CPPFLAGS, $CFLAGS, $LDFLAGS, $LIBS)
dnl Do you want to debug zsh?
ifdef([zsh-debug],[undefine([zsh-debug])])dnl
AH_TEMPLATE([DEBUG],
[Define to 1 if you want to debug zsh.])
AC_ARG_ENABLE(zsh-debug,
AS_HELP_STRING([--enable-zsh-debug],[compile with debug code and debugger symbols]),
[if test x$enableval = xyes; then
AC_DEFINE(DEBUG)
fi])
dnl Do you want zsh memory allocation routines.
ifdef([zsh-mem],[undefine([zsh-mem])])dnl
AH_TEMPLATE([ZSH_MEM],
[Define to 1 if you want to use zsh's own memory allocation routines])
AC_ARG_ENABLE(zsh-mem,
AS_HELP_STRING([--enable-zsh-mem],[compile with zsh memory allocation routines]),
[if test x$enableval = xyes; then
AC_DEFINE(ZSH_MEM)
fi])
dnl Do you want to debug zsh memory allocation routines.
ifdef([zsh-mem-debug],[undefine([zsh-mem-debug])])dnl
AH_TEMPLATE([ZSH_MEM_DEBUG],
[Define to 1 if you want to debug zsh memory allocation routines.])
AC_ARG_ENABLE(zsh-mem-debug,
AS_HELP_STRING([--enable-zsh-mem-debug],[debug zsh memory allocation routines]),
[if test x$enableval = xyes; then
AC_DEFINE(ZSH_MEM_DEBUG)
fi])
dnl Do you want to print warnings when errors in memory allocation.
AH_TEMPLATE([ZSH_MEM_WARNING],
[Define to 1 if you want to turn on warnings of memory allocation errors])
ifdef([zsh-mem-warning],[undefine([zsh-mem-warning])])dnl
AC_ARG_ENABLE(zsh-mem-warning,
AS_HELP_STRING([--enable-zsh-mem-warning],[print warnings for errors in memory allocation]),
[if test x$enableval = xyes; then
AC_DEFINE(ZSH_MEM_WARNING)
fi])
dnl Do you want to turn on error checking for free().
ifdef([zsh-secure-free],[undefine([zsh-secure-free])])dnl
AH_TEMPLATE([ZSH_SECURE_FREE],
[Define to 1 if you want to turn on memory checking for free().])
AC_ARG_ENABLE(zsh-secure-free,
AS_HELP_STRING([--enable-zsh-secure-free],[turn on error checking for free()]),
[if test x$enableval = xyes; then
AC_DEFINE(ZSH_SECURE_FREE)
fi])
dnl Do you want to debug zsh heap allocation?
dnl Does not depend on zsh-mem.
ifdef([zsh-heap-debug],[undefine([zsh-heap-debug])])dnl
AH_TEMPLATE([ZSH_HEAP_DEBUG],
[Define to 1 if you want to turn on error checking for heap allocation.])
AC_ARG_ENABLE(zsh-heap-debug,
AS_HELP_STRING([--enable-zsh-heap-debug],[turn on error checking for heap allocation]),
[if test x$enableval = xyes; then
AC_DEFINE(ZSH_HEAP_DEBUG)
fi])
dnl Do you want to allow Valgrind to debug heap allocation?
ifdef([zsh-valgrind],[undefine([zsh-valgrind])])dnl
AH_TEMPLATE([ZSH_VALGRIND],
[Define to 1 if you want to add code for valgrind to debug heap memory.])
AC_ARG_ENABLE(zsh-valgrind,
AS_HELP_STRING([--enable-zsh-valgrind],[turn on support for valgrind debugging of heap memory]),
[if test x$enableval = xyes; then
AC_DEFINE(ZSH_VALGRIND)
fi])
dnl Do you want debugging information on internal hash tables.
dnl This turns on the `hashinfo' builtin command.
ifdef([zsh-hash-debug],[undefine([zsh-hash-debug])])dnl
AH_TEMPLATE([ZSH_HASH_DEBUG],
[Define to 1 if you want to get debugging information on internal
hash tables. This turns on the `hashinfo' builtin.])
AC_ARG_ENABLE(zsh-hash-debug,
AS_HELP_STRING([--enable-zsh-hash-debug],[turn on debugging of internal hash tables]),
[if test x$enableval = xyes; then
AC_DEFINE(ZSH_HASH_DEBUG)
fi])
dnl Do you want to dynamically allocate memory on the stack where possible?
ifdef([stack-allocation],[undefine([stack-allocation])])dnl
AH_TEMPLATE([USE_STACK_ALLOCATION],
[Define to 1 if you want to allocate stack memory e.g. with `alloca'.])
AC_ARG_ENABLE(stack-allocation,
AS_HELP_STRING([--enable-stack-allocation],[allocate stack memory e.g. with `alloca']),
[if test x$enableval = xyes; then
AC_DEFINE(USE_STACK_ALLOCATION)
fi])
dnl Pathnames for global zsh scripts
ifdef([etcdir],[undefine([etcdir])])dnl
AC_ARG_ENABLE(etcdir,
AS_HELP_STRING([--enable-etcdir=DIR],[the default directory for global zsh scripts]),
[etcdir="$enableval"], [etcdir=/etc])
ifdef([zshenv],[undefine([zshenv])])dnl
AC_ARG_ENABLE(zshenv,
AS_HELP_STRING([--enable-zshenv=FILE],[the full pathname of the global zshenv script]),
[zshenv="$enableval"],
[if test "x$etcdir" = xno; then
zshenv=no
else
zshenv="$etcdir/zshenv"
fi])
AH_TEMPLATE([GLOBAL_ZSHENV],
[The global file to source absolutely first whenever zsh is run;
if undefined, don't source anything.])
if test "x$zshenv" != xno; then
AC_DEFINE_UNQUOTED(GLOBAL_ZSHENV, "$zshenv")
fi
ifdef([zshrc],[undefine([zshrc])])dnl
AC_ARG_ENABLE(zshrc,
AS_HELP_STRING([--enable-zshrc=FILE],[the full pathname of the global zshrc script]),
[zshrc="$enableval"],
[if test "x$etcdir" = xno; then
zshrc=no
else
zshrc="$etcdir/zshrc"
fi])
AH_TEMPLATE([GLOBAL_ZSHRC],
[The global file to source whenever zsh is run;
if undefined, don't source anything])
if test "x$zshrc" != xno; then
AC_DEFINE_UNQUOTED(GLOBAL_ZSHRC, "$zshrc")
fi
ifdef([zprofile],[undefine([zprofile])])dnl
AC_ARG_ENABLE(zprofile,
AS_HELP_STRING([--enable-zprofile=FILE],[the full pathname of the global zprofile script]),
[zprofile="$enableval"],
[if test "x$etcdir" = xno; then
zprofile=no
else
zprofile="$etcdir/zprofile"
fi])
AH_TEMPLATE([GLOBAL_ZPROFILE],
[The global file to source whenever zsh is run as a login shell,
before zshrc is read; if undefined, don't source anything.])
if test "x$zprofile" != xno; then
AC_DEFINE_UNQUOTED(GLOBAL_ZPROFILE, "$zprofile")
fi
ifdef([zlogin],[undefine([zlogin])])dnl
AC_ARG_ENABLE(zlogin,
AS_HELP_STRING([--enable-zlogin=FILE],[the full pathname of the global zlogin script]),
[zlogin="$enableval"],
[if test "x$etcdir" = xno; then
zlogin=no
else
zlogin="$etcdir/zlogin"
fi])
AH_TEMPLATE([GLOBAL_ZLOGIN],
[The global file to source whenever zsh is run as a login shell;
if undefined, don't source anything])
if test "x$zlogin" != xno; then
AC_DEFINE_UNQUOTED(GLOBAL_ZLOGIN, "$zlogin")
fi
ifdef([zlogout],[undefine([zlogout])])dnl
AC_ARG_ENABLE(zlogout,
AS_HELP_STRING([--enable-zlogout=FILE],[the full pathname of the global zlogout script]),
[zlogout="$enableval"],
[if test "x$etcdir" = xno; then
zlogout=no
else
zlogout="$etcdir/zlogout"
fi])
AH_TEMPLATE([GLOBAL_ZLOGOUT],
[The global file to source whenever zsh was run as a login shell.
This is sourced right before exiting. If undefined, don't source
anything.])
if test "x$zlogout" != xno; then
AC_DEFINE_UNQUOTED(GLOBAL_ZLOGOUT, "$zlogout")
fi
AC_SUBST(zshenv)dnl
AC_SUBST(zshrc)dnl
AC_SUBST(zprofile)dnl
AC_SUBST(zlogin)dnl
AC_SUBST(zlogout)dnl
dnl Do you want dynamically loaded binary modules.
ifdef([dynamic],[undefine([dynamic])])dnl
AC_ARG_ENABLE(dynamic,
AS_HELP_STRING([--disable-dynamic],[turn off dynamically loaded binary modules]),
[dynamic="$enableval"], [dynamic=yes])
dnl Do you want to disable restricted on r* commands
ifdef([restricted-r],[undefine([restricted-r])])dnl
AH_TEMPLATE([RESTRICTED_R],
[Undefine this if you don't want to get a restricted shell
when zsh is exec'd with basename that starts with r.
By default this is defined.])
AC_ARG_ENABLE(restricted-r,
AS_HELP_STRING([--disable-restricted-r],[turn off r* invocation for restricted shell]),
[if test x$enableval = xyes; then
AC_DEFINE(RESTRICTED_R)
fi],
AC_DEFINE(RESTRICTED_R)
)
dnl Do you want to disable use of locale functions
AH_TEMPLATE([CONFIG_LOCALE],
[Undefine if you don't want local features. By default this is defined.])
AC_ARG_ENABLE([locale],
AS_HELP_STRING([--disable-locale],[turn off locale features]),
[if test x$enableval = xyes; then
AC_DEFINE(CONFIG_LOCALE)
fi],
AC_DEFINE(CONFIG_LOCALE)
)
dnl Do you want to compile as K&R C.
AC_ARG_ENABLE(ansi2knr,
AS_HELP_STRING([--enable-ansi2knr],[translate source to K&R C before compiling]),
[ansi2knr="$enableval"], [ansi2knr=default])
ifdef([runhelpdir],[undefine([runhelpdir])])dnl
AC_ARG_ENABLE(runhelpdir,
AS_HELP_STRING([--enable-runhelpdir=DIR],[the directory in which to install run-help files]),
[if test x"$enableval" = xno; then
runhelpdir=
else
runhelpdir="$enableval"
fi], [runhelpdir=yes])
if test x"$runhelpdir" = xyes; then
runhelpdir=${datadir}/${tzsh_name}/'${VERSION}'/help
fi
if test x"$runhelpdir" = x; then
runhelp=
else
runhelp=runhelp
fi
ifdef([fndir],[undefine([fndir])])dnl
AC_ARG_ENABLE(fndir,
AS_HELP_STRING([--enable-fndir=DIR],[the directory in which to install functions]),
dnl ${VERSION} to be determined at compile time.
[if test x$enableval = xyes; then
fndir=${datadir}/${tzsh_name}/'${VERSION}'/functions
else
fndir="$enableval"
fi], [fndir=${datadir}/${tzsh_name}/'${VERSION}'/functions])
ifdef([sitefndir],[undefine([sitefndir])])dnl
AC_ARG_ENABLE(site-fndir,
AS_HELP_STRING([--enable-site-fndir=DIR],[same for site functions (not version specific)]),
[if test x$enableval = xyes; then
sitefndir=${datadir}/${tzsh_name}/site-functions
else
sitefndir="$enableval"
fi], [sitefndir=${datadir}/${tzsh_name}/site-functions])
dnl Add /usr/local/share/zsh/site-functions if not yet present
dnl owing to $sitefndir, whether or not explicitly given.
dnl If not explicitly given, it hasn't been expanded yet.
if test X$sitefndir = X/usr/local/share/zsh/site-functions || \
test X$sitefndir = Xno
then fixed_sitefndir=''
elif test X$prefix != X/usr/local; then
if test X$prefix = XNONE && test X$ac_default_prefix = X/usr/local; then
if test X$tzsh_name != Xzsh
then fixed_sitefndir=/usr/local/share/zsh/site-functions
else fixed_sitefndir=''
fi
else fixed_sitefndir=/usr/local/share/zsh/site-functions
fi
elif test X$tzsh_name != Xzsh
then fixed_sitefndir=/usr/local/share/zsh/site-functions
else fixed_sitefndir=''
fi
ifdef([function_subdirs],[undefine([function_subdirs])])
AC_ARG_ENABLE(function-subdirs,
AS_HELP_STRING([--enable-function-subdirs],[install functions in subdirectories]))
if test "x${enable_function_subdirs}" != x &&
test "x${enable_function_subdirs}" != xno; then
FUNCTIONS_SUBDIRS=yes
else
FUNCTIONS_SUBDIRS=no
fi
ifdef([additionalfpath],[undefine([additionalfpath])])dnl
AC_ARG_ENABLE(additional-fpath,
AS_HELP_STRING([--enable-additional-fpath=DIR],[add directories to default function path]),
[if test x$enableval = xyes; then
additionalfpath=""
else
additionalfpath="${enableval}"
fi], [additionalfpath=""])
AC_SUBST(runhelpdir)dnl
AC_SUBST(runhelp)dnl
AC_SUBST(additionalfpath)dnl
AC_SUBST(fndir)dnl
AC_SUBST(sitefndir)dnl
AC_SUBST(fixed_sitefndir)dnl
AC_SUBST(FUNCTIONS_SUBDIRS)dnl
dnl Directories for scripts such as newuser.
ifdef([scriptdir],[undefine([scriptdir])])dnl
AC_ARG_ENABLE(scriptdir,
AS_HELP_STRING([--enable-scriptdir=DIR],[the directory in which to install scripts]),
dnl ${VERSION} to be determined at compile time.
[if test x$enableval = xyes; then
scriptdir=${datadir}/${tzsh_name}/'${VERSION}'/scripts
else
scriptdir="$enableval"
fi], [scriptdir=${datadir}/${tzsh_name}/'${VERSION}'/scripts])
ifdef([sitescriptdir],[undefine([sitescriptdir])])dnl
AC_ARG_ENABLE(site-scriptdir,
AS_HELP_STRING([--enable-site-scriptdir=DIR],[same for site scripts (not version specific)]),
[if test x$enableval = xyes; then
sitescriptdir=${datadir}/${tzsh_name}/scripts
else
sitescriptdir="$enableval"
fi], [sitescriptdir=${datadir}/${tzsh_name}/scripts])
AC_SUBST(scriptdir)dnl
AC_SUBST(sitescriptdir)dnl
dnl htmldir is already handled, but if it wasn't set, use
dnl the standard zsh default.
if test x$htmldir = x'${docdir}' || test x$htmldir = x; then
htmldir='$(datadir)/$(tzsh)/htmldoc'
fi
AH_TEMPLATE([CUSTOM_PATCHLEVEL],
[Define to a custom value for the ZSH_PATCHLEVEL parameter])
AC_ARG_ENABLE(custom-patchlevel,
AS_HELP_STRING([--enable-custom-patchlevel],[set a custom ZSH_PATCHLEVEL value]),
[if test x$enableval != x && test x$enableval != xno; then
AC_DEFINE_UNQUOTED([CUSTOM_PATCHLEVEL], ["$enableval"])
fi])
dnl Do you want maildir support?
ifdef([maildir_support],[undefine([maildir_support])])dnl
AH_TEMPLATE([MAILDIR_SUPPORT],
[Define for Maildir support])
AC_ARG_ENABLE(maildir-support,
AS_HELP_STRING([--enable-maildir-support],[enable maildir support in MAIL and MAILPATH]),
[if test x$enableval = xyes; then
AC_DEFINE(MAILDIR_SUPPORT)
fi])
dnl Do you want to set a maximum function depth?
ifdef([max_function_depth],[undefine([max_function_depth])])dnl
AH_TEMPLATE([MAX_FUNCTION_DEPTH],
[Define for function depth limits])
AC_ARG_ENABLE(max-function-depth,
AS_HELP_STRING([--enable-max-function-depth=MAX],[limit function depth to MAX, default 500]),
[if test x$enableval = xyes; then
AC_DEFINE(MAX_FUNCTION_DEPTH, 500)
elif test x$enableval != xno; then
AC_DEFINE_UNQUOTED(MAX_FUNCTION_DEPTH, $enableval)
fi],
[AC_DEFINE(MAX_FUNCTION_DEPTH, 500)]
)
ifdef([default_readnullcmd],[undefine([default_readnullcmd])])dnl
AH_TEMPLATE([DEFAULT_READNULLCMD],
[Define default pager used by readnullcmd])
AC_ARG_ENABLE(readnullcmd,
AS_HELP_STRING([--enable-readnullcmd=PAGER],[pager used when READNULLCMD is not set]),
[if test x$enableval = xyes; then
AC_DEFINE(DEFAULT_READNULLCMD,"more")
elif test x$enableval != xno; then
AC_DEFINE_UNQUOTED(DEFAULT_READNULLCMD,"$enableval")
fi],
[AC_DEFINE(DEFAULT_READNULLCMD,"more")]
)
dnl Do you want to look for pcre support?
AC_ARG_ENABLE(pcre,
AS_HELP_STRING([--enable-pcre],[enable the search for the pcre2 library (may create run-time library dependencies)]))
AC_ARG_VAR(PCRE_CONFIG, [pathname of pcre2-config if it is not in PATH])
if test "x$enable_pcre" = xyes; then
AC_CHECK_PROG([PCRE_CONFIG], pcre2-config, pcre2-config)
if test "x$PCRE_CONFIG" = x; then
enable_pcre=no
AC_MSG_WARN([pcre2-config not found: pcre module is disabled.])
AC_MSG_NOTICE(
[Set PCRE_CONFIG to pathname of pcre2-config if it is not in PATH.])
fi
fi
dnl Do you want to look for capability support?
AC_ARG_ENABLE(cap,
AS_HELP_STRING([--enable-cap],[enable the search for POSIX capabilities (may require additional headers to be added by hand)]))
# Default off for licensing reasons
AC_ARG_ENABLE(gdbm,
AS_HELP_STRING([--enable-gdbm],[enable the search for the GDBM library (see the zsh/db/gdbm module)]),
[gdbm="$enableval"], [gdbm=no])
dnl ------------------
dnl CHECK THE COMPILER
dnl ------------------
dnl We want these before the checks, so the checks can modify their values.
test -z "${CFLAGS+set}" && CFLAGS= auto_cflags=1
test -z "${LDFLAGS+set}" && LDFLAGS= auto_ldflags=1
AC_PROG_CC
dnl Check for large file support.
dnl Gross hack for ReliantUNIX - GCC does not understand getconf options
dnl For now just disable LFS in this case
dnl Any takers?
if test "$host" = mips-sni-sysv4 && test -n "$GCC"; then
:
else
AC_SYS_LARGEFILE
fi
dnl if the user hasn't specified CFLAGS, then
dnl if compiler is gcc, then use -O2 and some warning flags
dnl else use -O
if test -n "$auto_cflags" && test ."$ansi2knr" != .yes; then
if test "${enable_zsh_debug}" = yes; then
if test -n "$GCC"; then
CFLAGS="$CFLAGS -Wall -Wmissing-prototypes -ggdb"
else
CFLAGS="$CFLAGS -g"
fi
else
if test -n "$GCC"; then
CFLAGS="$CFLAGS -Wall -Wmissing-prototypes -O2"
else
CFLAGS="$CFLAGS -O"
fi
fi
fi
if test -n "$auto_ldflags"; then
case "${enable_zsh_debug}$host_os" in
yesaix*|yeshpux*|yesnetbsd*|yesopenbsd*) ;; # "ld -g" is not valid on these systems
darwin*) LDFLAGS=-Wl,-x ;;
yes*) LDFLAGS=-g ;;
*) LDFLAGS=-s ;;
esac
fi
dnl ----------
dnl SCO KLUDGE
dnl ----------
dnl Sco doesn't define any useful compiler symbol,
dnl so we will check for sco and define __sco if
dnl found.
case "$host_os" in
sco*) CFLAGS="-D__sco $CFLAGS" ;;
esac
sed=':1
s/ -s / /g
t1
s/^ *//
s/ *$//'
case " $LDFLAGS " in
*" -s "*) strip_exeldflags=true strip_libldflags=true
LDFLAGS=`echo " $LDFLAGS " | sed "$sed"` ;;
*) strip_exeldflags=false strip_libldflags=false ;;
esac
case " ${EXELDFLAGS+$EXELDFLAGS }" in
" ") ;;
*" -s "*) strip_exeldflags=true
EXELDFLAGS=`echo " $EXELDFLAGS " | sed "$sed"` ;;
*) strip_exeldflags=false ;;
esac
case " ${LIBLDFLAGS+$LIBLDFLAGS }" in
" ") ;;
*" -s "*) strip_libldflags=true
LIBLDFLAGS=`echo " $LIBLDFLAGS " | sed "$sed"` ;;
*) strip_libldflags=false ;;
esac
AC_SUBST(CFLAGS)dnl
AC_SUBST(LDFLAGS)dnl
AC_SUBST(EXELDFLAGS)dnl
AC_SUBST(LIBLDFLAGS)dnl
AC_PROG_CPP dnl Figure out how to run C preprocessor.
AC_C_CONST dnl Does compiler support `const'.
dnl Default preprocessing on Mac OS X produces warnings
dnl Mac OS X 10.6 (darwin10.x.x) does not need this.
case "$host_os" in
darwin[[0-9]].*) CPP="$CPP -traditional-cpp" ;;
esac
fp_PROG_CC_STDC
AC_MSG_CHECKING([whether to use prototypes])
if test ."$ansi2knr" = .yes || test ."$ansi2knr" = .no; then
msg="(overridden) "
else
msg=
if test ."$fp_cv_prog_cc_stdc" = .no; then
ansi2knr=yes
else
ansi2knr=no
fi
fi
AH_TEMPLATE([PROTOTYPES],
[Define to 1 if ANSI function prototypes are usable.])
if test "$ansi2knr" = yes; then
AC_MSG_RESULT(${msg}no)
U=_
else
AC_MSG_RESULT(${msg}yes)
AC_DEFINE(PROTOTYPES)
U=
fi
AC_SUBST(U)
AC_FUNC_ALLOCA dnl Check how to get `alloca'.
dnl If the compiler supports union initialisation
AC_CACHE_CHECK(if the compiler supports union initialisation,
zsh_cv_c_have_union_init,
[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[union{void *p;long l;}u={0};]], [[u.l=1;]])],[zsh_cv_c_have_union_init=yes],[zsh_cv_c_have_union_init=no])])
AH_TEMPLATE([HAVE_UNION_INIT],
[Define to 1 if the compiler can initialise a union.])
if test x$zsh_cv_c_have_union_init = xyes; then
AC_DEFINE(HAVE_UNION_INIT)
fi
dnl Checking if the compiler supports variable-length arrays
AC_CACHE_CHECK(if the compiler supports variable-length arrays,
zsh_cv_c_variable_length_arrays,
[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[int foo(), n;]], [[int i[foo()], a[n+1];]])],[zsh_cv_c_variable_length_arrays=yes],[zsh_cv_c_variable_length_arrays=no])])
AH_TEMPLATE([HAVE_VARIABLE_LENGTH_ARRAYS],
[Define to 1 if compiler supports variable-length arrays])
if test x$zsh_cv_c_variable_length_arrays = xyes; then
AC_DEFINE(HAVE_VARIABLE_LENGTH_ARRAYS)
fi
dnl ------------------
dnl CHECK FOR PROGRAMS
dnl ------------------
AC_PROG_MAKE_SET dnl Does make define $MAKE
AC_PROG_INSTALL dnl Check for BSD compatible `install'
AC_PROG_AWK dnl Check for mawk,gawk,nawk, then awk.
AC_PROG_LN dnl Check for working ln, for "make install"
AC_PROG_LN_S dnl Use ln -s/ln/cp for "make install.runhelp"
AC_PROG_EGREP dnl sets $EGREP to grep -E or egrep
AC_CHECK_PROGS([YODL], [yodl], [: yodl])
YODL_OPTIONS=''
if test "x$ac_cv_prog_YODL" = xyodl; then
case `yodl --version` in
*"version 2."*) YODL_OPTIONS='-k' ;;
*"version 3."*) YODL_OPTIONS='-k -L' ;;
*"version 4."*) YODL_OPTIONS='-k -L' ;;
esac
fi
AC_SUBST(YODL_OPTIONS)
AC_CHECK_PROGS([TEXI2DVI], [texi2dvi], [: texi2dvi])
AC_CHECK_PROGS([TEXI2PDF], [texi2pdf], [: texi2pdf])
AC_CHECK_PROGS([TEXI2HTML], [texi2any texi2html], [: texi2html])
if test x"$TEXI2PDF" != xtexi2pdf && test x"$TEXI2DVI" = xtexi2dvi; then
TEXI2PDF='texi2dvi --pdf'
fi
if test x"$TEXI2HTML" = xtexi2any; then
TEXI2HTML='texi2any -c TEXI2HTML=1'
case `texi2any --version 2>/dev/null | sed -e 's/^.*) *//' -e 1q` in
[[1-6]].*) SET_TEXI2ANY_VAR=set_from_init_file ;;
*) SET_TEXI2ANY_VAR=texinfo_set_from_init_file ;;
esac
fi
AC_SUBST(SET_TEXI2ANY_VAR)
case "$LC_PAPER" in
??_US*) PAPERSIZE=us ;;
*) PAPERSIZE=a4 ;;
esac
AC_SUBST(PAPERSIZE)
AC_CHECK_PROGS([ANSI2KNR], [ansi2knr], [: ansi2knr])
if test x"$ansi2knr" = xyes && test x"$ANSI2KNR" = x": ansi2knr"; then
echo "----------"
echo "configure fatal error:"
echo "ansi2knr was specified (--enable-ansi2knr) but the program could not be found."
echo "Either remove the configure option if it is not required or build the ansi2knr"
echo "program before reconfiguring Zsh. The source code for ansi2knr is also"
echo "available in the GPL directory on Zsh distribution sites."
exit 1
fi
dnl ------------------
dnl CHECK HEADER FILES
dnl ------------------
AC_HEADER_DIRENT
AC_HEADER_STAT
AC_HEADER_SYS_WAIT
dnl pcre2-config --cflags may produce a -I output which needs to go into
dnl CPPFLAGS else configure's preprocessor tests don't pick it up,
dnl producing a warning.
if test "x$enable_pcre" = xyes; then
CPPFLAGS="`$PCRE_CONFIG --cflags` $CPPFLAGS"
AC_CHECK_HEADERS([pcre2.h],,,[#define PCRE2_CODE_UNIT_WIDTH 8])
fi
AC_CHECK_HEADERS(sys/time.h sys/times.h sys/select.h termcap.h termio.h \
termios.h sys/param.h sys/filio.h string.h memory.h \
limits.h fcntl.h libc.h sys/utsname.h sys/resource.h \
locale.h errno.h stdio.h stdarg.h varargs.h stdlib.h \
unistd.h sys/capability.h \
utmp.h utmpx.h sys/types.h pwd.h grp.h poll.h sys/mman.h \
netinet/in_systm.h langinfo.h wchar.h stddef.h \
sys/stropts.h iconv.h ncurses.h ncursesw/ncurses.h \
ncurses/ncurses.h)
if test x$dynamic = xyes; then
AC_CHECK_HEADERS(dlfcn.h)
AC_CHECK_HEADERS(dl.h)
fi
dnl Some SCO systems cannot include both sys/time.h and sys/select.h
AH_TEMPLATE([TIME_H_SELECT_H_CONFLICTS],
[Define if sys/time.h and sys/select.h cannot be both included.])
if test x$ac_cv_header_sys_time_h = xyes && test x$ac_cv_header_sys_select_h = xyes; then
AC_CACHE_CHECK(for conflicts in sys/time.h and sys/select.h,
zsh_cv_header_time_h_select_h_conflicts,
[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/time.h>
#include <sys/select.h>]], [[int i;]])],[zsh_cv_header_time_h_select_h_conflicts=no],[zsh_cv_header_time_h_select_h_conflicts=yes])])
if test x$zsh_cv_header_time_h_select_h_conflicts = xyes; then
AC_DEFINE(TIME_H_SELECT_H_CONFLICTS)
fi
fi
AH_TEMPLATE([GWINSZ_IN_SYS_IOCTL],
[Define if TIOCGWINSZ is defined in sys/ioctl.h but not in termios.h.])
if test x$ac_cv_header_termios_h = xyes; then
AC_CACHE_CHECK(TIOCGWINSZ in termios.h,
zsh_cv_header_termios_h_tiocgwinsz,
[AC_LINK_IFELSE([AC_LANG_PROGRAM([[
#ifdef HAVE_SYS_TYPES_H
# include <sys/types.h>
#endif
#include <termios.h>]], [[int x = TIOCGWINSZ;]])],[zsh_cv_header_termios_h_tiocgwinsz=yes],[zsh_cv_header_termios_h_tiocgwinsz=no])])
else
zsh_cv_header_termios_h_tiocgwinsz=no
fi
if test x$zsh_cv_header_termios_h_tiocgwinsz = xno; then
AC_CACHE_CHECK(TIOCGWINSZ in sys/ioctl.h,
zsh_cv_header_sys_ioctl_h_tiocgwinsz,
[AC_LINK_IFELSE([AC_LANG_PROGRAM([[
#ifdef HAVE_SYS_TYPES_H
# include <sys/types.h>
#endif
#include <sys/ioctl.h>]], [[int x = TIOCGWINSZ;]])],[zsh_cv_header_sys_ioctl_h_tiocgwinsz=yes],[zsh_cv_header_sys_ioctl_h_tiocgwinsz=no])])
if test x$zsh_cv_header_sys_ioctl_h_tiocgwinsz = xyes; then
AC_DEFINE(GWINSZ_IN_SYS_IOCTL)
fi
fi
AH_TEMPLATE([WINSIZE_IN_PTEM],
[Define if your should include sys/stream.h and sys/ptem.h.])
AC_CACHE_CHECK(for streams headers including struct winsize,
ac_cv_winsize_in_ptem,
[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/stream.h>
#include <sys/ptem.h>]], [[struct winsize wsz]])],[ac_cv_winsize_in_ptem=yes],[ac_cv_winsize_in_ptem=no])])
if test x$ac_cv_winsize_in_ptem = xyes; then
AC_DEFINE(WINSIZE_IN_PTEM)
fi
dnl -------------------
dnl CHECK FOR LIBRARIES
dnl -------------------
dnl On some systems, modules need to be linked against libc explicitly,
dnl in case they require objects that exist only in the static version
dnl and might not be compiled into the zsh executable.
dnl On ReliantUNIX -lc better be the last library, else funny things
dnl may happen.
AC_CHECK_LIB(c, printf, [LIBS="$LIBS -lc"])
AC_CHECK_LIB(m, pow)
AC_CHECK_LIB(rt, clock_gettime)
dnl Various features of ncurses depend on having the right header
dnl (the system's own curses.h may well not be good enough).
dnl So don't search for ncurses unless we found the header.
if test x$ac_cv_header_ncurses_h = xyes || test x$ac_cv_header_ncurses_ncurses_h = xyes || test x$ac_cv_header_ncursesw_ncurses_h = xyes; then
ncursesw_test=ncursesw
ncurses_test=ncurses
else
ncursesw_test=
ncurses_test=
fi
dnl Prefer BSD termcap library to SysV curses library, except on certain
dnl SYSV-derived systems. However, if we find terminfo and termcap
dnl stuff in the same library we will use that; typically this
dnl is ncurses or curses.
dnl On pre-11.11 HPUX, Hcurses is reported to work better than curses.
dnl Prefer ncurses to curses on all systems. tinfo isn't very common now.
AC_ARG_WITH(term-lib,
AS_HELP_STRING([--with-term-lib=LIBS],[search space-separated LIBS for terminal handling]),
[if test "x$withval" != xno && test "x$withval" != x ; then
termcap_curses_order="$withval"
AC_SEARCH_LIBS(tigetstr, [$termcap_curses_order])
else
termcap_curses_order="$ncursesw_test $ncurses_test tinfow tinfo termcap curses"
fi],
[case "$host_os" in
solaris*)
termcap_curses_order="$ncursesw_test $ncurses_test curses termcap" ;;
hpux10.*|hpux11.*)
DL_EXT="${DL_EXT=sl}"
termcap_curses_order="Hcurses $ncursesw_test $ncurses_test curses termcap" ;;
*)
termcap_curses_order="$ncursesw_test $ncurses_test tinfow tinfo termcap curses" ;;
esac])dnl
AH_TEMPLATE([ZSH_NO_XOPEN],
[Define if _XOPEN_SOURCE_EXTENDED should not be defined to avoid clashes])
AC_CACHE_CHECK(if _XOPEN_SOURCE_EXTENDED should not be defined,
zsh_cv_no_xopen,
[[case "$host_os" in
*freebsd5*|*freebsd6.[012]*|*aix*)
zsh_cv_no_xopen=yes
;;
*)
zsh_cv_no_xopen=no
;;
esac]])
if test x$zsh_cv_no_xopen = xyes; then
AC_DEFINE(ZSH_NO_XOPEN)
fi
dnl Check for tigetflag (terminfo) before tgetent (termcap).
dnl That's so that on systems where termcap and [n]curses are
dnl both available and both contain termcap functions, while
dnl only [n]curses contains terminfo functions, we only link against
dnl [n]curses.
LIBS_save_pre_term="$LIBS"
AC_SEARCH_LIBS(tigetstr, [$termcap_curses_order])
AC_SEARCH_LIBS(tigetflag, [$termcap_curses_order])
AC_SEARCH_LIBS(tgetent, [$termcap_curses_order],
true,
AC_MSG_FAILURE(["No terminal handling library was found on your system.
This is probably a library called 'curses' or 'ncurses'. You may
need to install a package called 'curses-devel' or 'ncurses-devel' on your
system."], 255))
AC_CHECK_HEADERS(curses.h, [],
[AC_CACHE_CHECK(for Solaris 8 curses.h mistake, ac_cv_header_curses_solaris,
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <curses.h>]], [[]])],[ac_cv_header_curses_h=yes
ac_cv_header_curses_solaris=yes],[ac_cv_header_curses_h=no
ac_cv_header_curses_solaris=no]))
if test x$ac_cv_header_curses_solaris = xyes; then
AC_DEFINE(HAVE_CURSES_H)
fi])
dnl If our terminal library is not ncurses, don't try including
dnl any ncurses headers.
AC_CACHE_CHECK(if we need to ignore ncurses, zsh_cv_ignore_ncurses,
[case $LIBS in
*-lncurses*)
zsh_cv_ignore_ncurses=no
;;
*)
dnl The lack of -lncurses in the $LIBS might be the result of passing
dnl --with-term-lib=^ncurses option. To address this, a test for the tgetent
dnl and other functions is ran here, possibly for the second time, just to
dnl ensure that the ncurses library doesn't have them.
LIBS_save="$LIBS"
dnl Remember (the values are used later, around line 3005) and remove the cache
ac_cv_search_tigetstr_SAVE="$ac_cv_search_tigetstr"
ac_cv_search_tigetnum_SAVE="$ac_cv_search_tigetnum"
ac_cv_search_tigetflag_SAVE="$ac_cv_search_tigetflag"
ac_cv_search_tgetent_SAVE="$ac_cv_search_tgetent"
unset ac_cv_search_tigetstr ac_cv_search_tigetnum ac_cv_search_tigetflag ac_cv_search_tgetent
LIBS="$LIBS_save_pre_term"
dnl Run the checks for all four used terminal functions
AC_SEARCH_LIBS(tigetstr, [ncursesw ncurses curses])
AC_SEARCH_LIBS(tigetnum, [ncursesw ncurses curses])
AC_SEARCH_LIBS(tigetflag, [ncursesw ncurses curses])
AC_SEARCH_LIBS(tgetent, [ncursesw ncurses curses])
LIBS_result="$LIBS"
LIBS="$LIBS_save"
dnl Restore the cache
ac_cv_search_tigetstr="$ac_cv_search_tigetstr_SAVE"
ac_cv_search_tigetnum="$ac_cv_search_tigetnum_SAVE"
ac_cv_search_tigetflag="$ac_cv_search_tigetflag_SAVE"
ac_cv_search_tgetent="$ac_cv_search_tgetent_SAVE"
case $LIBS_result in
*-lncurses*|*-lcurses*)
dnl Yes we need to ignore ncurses, its tgetent or tigetflag might
dnl conflict with the one from the selected terminal library
zsh_cv_ignore_ncurses=yes
;;
*)
dnl If the tgetent nor tigetflag weren't found in the libncurses*.so, then
dnl there will be no conflict with the other terminal library selected (e.g.
dnl libtinfo) and it's possible to link ncurses provided that it is working
dnl - it is here verified that it has initscr() function to check that
AC_SEARCH_LIBS(initscr, [ncursesw ncurses curses])
case $LIBS in
*-lncurses*|*-lcurses*)
dnl No need to ignore curses - it is working and it doesn't
dnl have tgetent nor tigetflag
zsh_cv_ignore_ncurses=no
;;
*)
zsh_cv_ignore_ncurses=yes
;;
esac
esac
;;
esac])
AC_SEARCH_LIBS(getpwnam, nsl)
dnl I am told that told that unicos reqire these for nis_list
if test `echo $host_os | sed 's/^\(unicos\).*/\1/'` = unicos; then
LIBS="-lcraylm -lkrb -lnisdb -lnsl -lrpcsvc $LIBS"
fi
if test "x$dynamic" = xyes; then
AC_CHECK_LIB(dl, dlopen)
fi
if test x$enable_cap = xyes; then
AC_CHECK_LIB(cap, cap_get_proc)
fi
AC_CHECK_LIB(socket, socket)
AC_SEARCH_LIBS(gethostbyname2, bind)
case $LIBS in
*-lbind*)
AC_CHECK_HEADERS(bind/netdb.h)
;;
esac
dnl ---------------
dnl CHECK FOR ICONV
dnl ---------------
dnl Find iconv. It may be in libiconv and may be iconv() or libiconv()
if test "x$ac_cv_header_iconv_h" = "xyes"; then
AC_CHECK_FUNC(iconv, ac_found_iconv=yes, ac_found_iconv=no)
if test "x$ac_found_iconv" = "xno"; then
AC_CHECK_LIB(iconv, iconv, ac_found_iconv=yes)
if test "x$ac_found_iconv" = "xno"; then
AC_CHECK_LIB(iconv, libiconv, ac_found_iconv=yes)
fi
if test "x$ac_found_iconv" != "xno"; then
LIBS="-liconv $LIBS"
fi
else
dnl Handle case where there is a native iconv but iconv.h is from libiconv
AC_CHECK_DECL(_libiconv_version,
[ AC_CHECK_LIB(iconv, libiconv, LIBS="-liconv $LIBS") ],,
[ #include <iconv.h> ])
fi
fi
AH_TEMPLATE([ICONV_FROM_LIBICONV],
[Define to 1 if iconv() is linked from libiconv])
if test "x$ac_found_iconv" = xyes; then
AC_DEFINE(HAVE_ICONV, 1, [Define if you have the iconv() function.])
AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <iconv.h>]], [[int myversion = _libiconv_version]])],[AC_DEFINE(ICONV_FROM_LIBICONV)],[])
fi
dnl Check if iconv uses const in prototype declaration
if test "x$ac_found_iconv" = "xyes"; then
AC_CACHE_CHECK(for iconv declaration, ac_cv_iconv_const,
[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <stdlib.h>
#include <iconv.h>]],
[[#ifdef __cplusplus
"C"
#endif
#if defined(__STDC__) || defined(__cplusplus)
size_t iconv (iconv_t cd, char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);
#else
size_t iconv();
#endif]])],
[ac_cv_iconv_const=],
[ac_cv_iconv_const=const])])
AC_DEFINE_UNQUOTED([ICONV_CONST], $ac_cv_iconv_const,
[Define as const if the declaration of iconv() needs const.])
fi
dnl ---------------------
dnl CHECK TERMCAP LIBRARY
dnl ---------------------
dnl Checks for external variable ospeed in the termcap library.
AC_CACHE_CHECK(if an include file defines ospeed,
zsh_cv_decl_ospeed_include_defines,
[AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
#if HAVE_TERMIOS_H
#include <termios.h>
#endif
#if HAVE_TERMCAP_H
#include <termcap.h>
#endif]], [[ospeed = 0;]])],[zsh_cv_decl_ospeed_include_defines=yes],[zsh_cv_decl_ospeed_include_defines=no])])
if test x$zsh_cv_decl_ospeed_include_defines = xno; then
AC_CACHE_CHECK(if you must define ospeed,
zsh_cv_decl_ospeed_must_define,
[AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[extern short ospeed; ospeed = 0;]])],[zsh_cv_decl_ospeed_must_define=yes],[zsh_cv_decl_ospeed_must_define=no])])
fi
AH_TEMPLATE([HAVE_OSPEED],
[Define to 1 if your termcap library has the ospeed variable])
AH_TEMPLATE([MUST_DEFINE_OSPEED],
[Define to 1 if you have ospeed, but it is not defined in termcap.h])
if test x$zsh_cv_decl_ospeed_include_defines = xyes; then
AC_DEFINE(HAVE_OSPEED)
elif test x$zsh_cv_decl_ospeed_must_define = xyes; then
AC_DEFINE(HAVE_OSPEED)
AC_DEFINE(MUST_DEFINE_OSPEED)
fi
if test x$gdbm != xno; then
AC_CHECK_HEADERS(gdbm.h)
AC_CHECK_LIB(gdbm, gdbm_open)
fi
AC_CHECK_HEADERS(sys/xattr.h)
dnl --------------