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tmux/configure.ac

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# configure.ac
AC_INIT([tmux], next-3.5)
AC_PREREQ([2.60])
AC_CONFIG_AUX_DIR(etc)
AC_CONFIG_LIBOBJ_DIR(compat)
AM_INIT_AUTOMAKE([foreign subdir-objects])
AC_CANONICAL_HOST
# When CFLAGS isn't set at this stage and gcc is detected by the macro below,
# autoconf will automatically use CFLAGS="-O2 -g". Prevent that by using an
# empty default.
: ${CFLAGS=""}
# Save user CPPFLAGS, CFLAGS and LDFLAGS. We need to change them because
# AC_CHECK_HEADER doesn't give us any other way to update the include
# paths. But for Makefile.am we want to use AM_CPPFLAGS and friends.
SAVED_CFLAGS="$CFLAGS"
SAVED_CPPFLAGS="$CPPFLAGS"
SAVED_LDFLAGS="$LDFLAGS"
# Is this oss-fuzz build?
AC_ARG_ENABLE(
fuzzing,
AS_HELP_STRING(--enable-fuzzing, build fuzzers)
)
AC_ARG_VAR(
FUZZING_LIBS,
AS_HELP_STRING(libraries to link fuzzing targets with)
)
# Set up convenient fuzzing defaults before initializing compiler.
if test "x$enable_fuzzing" = xyes; then
AC_DEFINE(NEED_FUZZING)
test "x$CC" = x && CC=clang
test "x$FUZZING_LIBS" = x && \
FUZZING_LIBS="-fsanitize=fuzzer"
test "x$SAVED_CFLAGS" = x && \
AM_CFLAGS="-g -fsanitize=fuzzer-no-link,address"
fi
# Set up the compiler in two different ways and say yes we may want to install.
AC_PROG_CC
AM_PROG_CC_C_O
m4_version_prereq(2.70, [AC_PROG_CC], [AC_PROG_CC_C99])
AC_PROG_CPP
AC_PROG_EGREP
AC_PROG_INSTALL
AC_PROG_YACC
PKG_PROG_PKG_CONFIG
AC_USE_SYSTEM_EXTENSIONS
# Default tmux.conf goes in /etc not ${prefix}/etc.
test "$sysconfdir" = '${prefix}/etc' && sysconfdir=/etc
# Is this --enable-debug?
case "x$VERSION" in xnext*) enable_debug=yes;; esac
AC_ARG_ENABLE(
debug,
AS_HELP_STRING(--enable-debug, enable debug build flags),
)
AM_CONDITIONAL(IS_DEBUG, test "x$enable_debug" = xyes)
# Is this a static build?
AC_ARG_ENABLE(
static,
AS_HELP_STRING(--enable-static, create a static build)
)
if test "x$enable_static" = xyes; then
case "$host_os" in
*darwin*)
AC_MSG_ERROR([static linking is not supported on macOS])
;;
esac
test "x$PKG_CONFIG" != x && PKG_CONFIG="$PKG_CONFIG --static"
AM_LDFLAGS="-static $AM_LDFLAGS"
LDFLAGS="$AM_LDFLAGS $SAVED_LDFLAGS"
fi
# Allow default TERM to be set.
AC_ARG_WITH(
TERM,
AS_HELP_STRING(--with-TERM, set default TERM),
[DEFAULT_TERM=$withval],
[DEFAULT_TERM=]
)
case "x$DEFAULT_TERM" in
xscreen*|xtmux*|x)
;;
*)
AC_MSG_ERROR("unsuitable TERM (must be screen* or tmux*)")
;;
esac
# Do we need fuzzers?
AM_CONDITIONAL(NEED_FUZZING, test "x$enable_fuzzing" = xyes)
# Is this gcc?
AM_CONDITIONAL(IS_GCC, test "x$GCC" = xyes -a "x$enable_fuzzing" != xyes)
# Is this Sun CC?
AC_EGREP_CPP(
yes,
[
#ifdef __SUNPRO_C
yes
#endif
],
found_suncc=yes,
found_suncc=no
)
AM_CONDITIONAL(IS_SUNCC, test "x$found_suncc" = xyes)
# Check for various headers. Alternatives included from compat.h.
AC_CHECK_HEADERS([ \
bitstring.h \
dirent.h \
fcntl.h \
inttypes.h \
libproc.h \
libutil.h \
ndir.h \
paths.h \
pty.h \
stdint.h \
sys/dir.h \
sys/ndir.h \
sys/tree.h \
ucred.h \
util.h \
])
# Look for sys_signame.
AC_SEARCH_LIBS(sys_signame, , AC_DEFINE(HAVE_SYS_SIGNAME))
# Look for fmod.
AC_CHECK_LIB(m, fmod)
# Look for library needed for flock.
AC_SEARCH_LIBS(flock, bsd)
# Check for functions that are replaced or omitted.
AC_CHECK_FUNCS([ \
dirfd \
flock \
prctl \
proc_pidinfo \
getpeerucred \
sysconf
])
# Check for functions with a compatibility implementation.
AC_REPLACE_FUNCS([ \
asprintf \
cfmakeraw \
clock_gettime \
closefrom \
explicit_bzero \
fgetln \
freezero \
getdtablecount \
getdtablesize \
getpeereid \
getline \
getprogname \
htonll \
memmem \
ntohll \
setenv \
setproctitle \
strcasestr \
strlcat \
strlcpy \
strndup \
strsep \
])
AC_FUNC_STRNLEN
# Check if strtonum works.
AC_MSG_CHECKING([for working strtonum])
AC_RUN_IFELSE([AC_LANG_PROGRAM(
[#include <stdlib.h>],
[return (strtonum("0", 0, 1, NULL) == 0 ? 0 : 1);]
)],
[AC_DEFINE(HAVE_STRTONUM) AC_MSG_RESULT(yes)],
[AC_LIBOBJ(strtonum) AC_MSG_RESULT(no)],
[AC_LIBOBJ(strtonum) AC_MSG_RESULT(no)]
)
# Clang sanitizers wrap reallocarray even if it isn't available on the target
# system. When compiled it always returns NULL and crashes the program. To
# detect this we need a more complicated test.
AC_MSG_CHECKING([for working reallocarray])
AC_RUN_IFELSE([AC_LANG_PROGRAM(
[#include <stdlib.h>],
[return (reallocarray(NULL, 1, 1) == NULL);]
)],
AC_MSG_RESULT(yes),
[AC_LIBOBJ(reallocarray) AC_MSG_RESULT([no])],
[AC_LIBOBJ(reallocarray) AC_MSG_RESULT([no])]
)
AC_MSG_CHECKING([for working recallocarray])
AC_RUN_IFELSE([AC_LANG_PROGRAM(
[#include <stdlib.h>],
[return (recallocarray(NULL, 1, 1, 1) == NULL);]
)],
AC_MSG_RESULT(yes),
[AC_LIBOBJ(recallocarray) AC_MSG_RESULT([no])],
[AC_LIBOBJ(recallocarray) AC_MSG_RESULT([no])]
)
# Look for clock_gettime. Must come before event_init.
AC_SEARCH_LIBS(clock_gettime, rt)
# Always use our getopt because 1) glibc's doesn't enforce argument order 2)
# musl does not set optarg to NULL for flags without arguments (although it is
# not required to, but it is helpful) 3) there are probably other weird
# implementations.
AC_LIBOBJ(getopt)
# Look for libevent. Try libevent_core or libevent with pkg-config first then
# look for the library.
PKG_CHECK_MODULES(
LIBEVENT_CORE,
[libevent_core >= 2],
[
AM_CPPFLAGS="$LIBEVENT_CORE_CFLAGS $AM_CPPFLAGS"
CPPFLAGS="$AM_CPPFLAGS $SAVED_CPPFLAGS"
LIBS="$LIBEVENT_CORE_LIBS $LIBS"
found_libevent=yes
],
found_libevent=no
)
if test x$found_libevent = xno; then
PKG_CHECK_MODULES(
LIBEVENT,
[libevent >= 2],
[
AM_CPPFLAGS="$LIBEVENT_CFLAGS $AM_CPPFLAGS"
CPPFLAGS="$AM_CPPFLAGS $SAVED_CPPFLAGS"
LIBS="$LIBEVENT_LIBS $LIBS"
found_libevent=yes
],
found_libevent=no
)
fi
if test x$found_libevent = xno; then
AC_SEARCH_LIBS(
event_init,
[event_core event event-1.4],
found_libevent=yes,
found_libevent=no
)
fi
AC_CHECK_HEADER(
event2/event.h,
AC_DEFINE(HAVE_EVENT2_EVENT_H),
[
AC_CHECK_HEADER(
event.h,
AC_DEFINE(HAVE_EVENT_H),
found_libevent=no
)
]
)
if test "x$found_libevent" = xno; then
AC_MSG_ERROR("libevent not found")
fi
# Look for yacc.
AC_CHECK_PROG(found_yacc, $YACC, yes, no)
if test "x$found_yacc" = xno; then
AC_MSG_ERROR("yacc not found")
fi
# Look for ncurses or curses. Try pkg-config first then directly for the
# library.
PKG_CHECK_MODULES(
LIBTINFO,
tinfo,
[
AM_CPPFLAGS="$LIBTINFO_CFLAGS $AM_CPPFLAGS"
CPPFLAGS="$LIBTINFO_CFLAGS $SAVED_CPPFLAGS"
LIBS="$LIBTINFO_LIBS $LIBS"
found_ncurses=yes
],
found_ncurses=no
)
if test "x$found_ncurses" = xno; then
PKG_CHECK_MODULES(
LIBNCURSES,
ncurses,
[
AM_CPPFLAGS="$LIBNCURSES_CFLAGS $AM_CPPFLAGS"
CPPFLAGS="$LIBNCURSES_CFLAGS $SAVED_CPPFLAGS"
LIBS="$LIBNCURSES_LIBS $LIBS"
found_ncurses=yes
],
found_ncurses=no
)
fi
if test "x$found_ncurses" = xno; then
PKG_CHECK_MODULES(
LIBNCURSESW,
ncursesw,
[
AM_CPPFLAGS="$LIBNCURSESW_CFLAGS $AM_CPPFLAGS"
CPPFLAGS="$LIBNCURSESW_CFLAGS $SAVED_CPPFLAGS"
LIBS="$LIBNCURSESW_LIBS $LIBS"
found_ncurses=yes
],
found_ncurses=no
)
fi
if test "x$found_ncurses" = xno; then
AC_SEARCH_LIBS(
setupterm,
[tinfo terminfo ncurses ncursesw],
found_ncurses=yes,
found_ncurses=no
)
if test "x$found_ncurses" = xyes; then
AC_CHECK_HEADER(
ncurses.h,
LIBS="$LIBS -lncurses",
found_ncurses=no
)
fi
fi
if test "x$found_ncurses" = xyes; then
CPPFLAGS="$CPPFLAGS -DHAVE_NCURSES_H"
AC_DEFINE(HAVE_NCURSES_H)
else
AC_CHECK_LIB(
curses,
setupterm,
found_curses=yes,
found_curses=no
)
AC_CHECK_HEADER(
curses.h,
,
found_curses=no
)
if test "x$found_curses" = xyes; then
LIBS="$LIBS -lcurses"
CPPFLAGS="$CPPFLAGS -DHAVE_CURSES_H"
AC_DEFINE(HAVE_CURSES_H)
else
AC_MSG_ERROR("curses not found")
fi
fi
AC_CHECK_FUNCS([ \
tiparm \
tiparm_s \
])
# Look for utempter.
AC_ARG_ENABLE(
utempter,
AS_HELP_STRING(--enable-utempter, use utempter if it is installed)
)
if test "x$enable_utempter" = xyes; then
AC_CHECK_HEADER(utempter.h, enable_utempter=yes, enable_utempter=no)
if test "x$enable_utempter" = xyes; then
AC_SEARCH_LIBS(
utempter_add_record,
utempter,
enable_utempter=yes,
enable_utempter=no
)
fi
if test "x$enable_utempter" = xyes; then
AC_DEFINE(HAVE_UTEMPTER)
else
AC_MSG_ERROR("utempter not found")
fi
fi
# Look for utf8proc.
AC_ARG_ENABLE(
utf8proc,
AS_HELP_STRING(--enable-utf8proc, use utf8proc if it is installed)
)
if test "x$enable_utf8proc" = xyes; then
PKG_CHECK_MODULES(
LIBUTF8PROC,
libutf8proc,
[
AM_CPPFLAGS="$LIBUTF8PROC_CFLAGS $AM_CPPFLAGS"
CPPFLAGS="$LIBUTF8PROC_CFLAGS $SAVED_CPPFLAGS"
LIBS="$LIBUTF8PROC_LIBS $LIBS"
]
)
AC_CHECK_HEADER(utf8proc.h, enable_utf8proc=yes, enable_utf8proc=no)
if test "x$enable_utf8proc" = xyes; then
AC_SEARCH_LIBS(
utf8proc_charwidth,
utf8proc,
enable_utf8proc=yes,
enable_utf8proc=no
)
fi
if test "x$enable_utf8proc" = xyes; then
AC_DEFINE(HAVE_UTF8PROC)
else
AC_MSG_ERROR("utf8proc not found")
fi
fi
AM_CONDITIONAL(HAVE_UTF8PROC, [test "x$enable_utf8proc" = xyes])
# Check for systemd support.
AC_ARG_ENABLE(
systemd,
AS_HELP_STRING(--enable-systemd, enable systemd integration)
)
if test x"$enable_systemd" = xyes; then
PKG_CHECK_MODULES(
SYSTEMD,
libsystemd,
[
AM_CPPFLAGS="$SYSTEMD_CFLAGS $AM_CPPFLAGS"
CPPFLAGS="$AM_CPPFLAGS $SAVED_CPPFLAGS"
LIBS="$SYSTEMD_LIBS $LIBS"
found_systemd=yes
],
found_systemd=no
)
if test "x$found_systemd" = xyes; then
AC_DEFINE(HAVE_SYSTEMD)
else
AC_MSG_ERROR("systemd not found")
fi
fi
AM_CONDITIONAL(HAVE_SYSTEMD, [test "x$found_systemd" = xyes])
AC_ARG_ENABLE(
cgroups,
AS_HELP_STRING(--disable-cgroups, disable adding panes to new cgroups with systemd)
)
if test "x$enable_cgroups" = x; then
# Default to the same as $enable_systemd.
enable_cgroups=$enable_systemd
fi
if test "x$enable_cgroups" = xyes; then
if test "x$found_systemd" = xyes; then
AC_DEFINE(ENABLE_CGROUPS)
else
AC_MSG_ERROR("cgroups requires systemd to be enabled")
fi
fi
# Enable sixel support.
AC_ARG_ENABLE(
sixel,
AS_HELP_STRING(--enable-sixel, enable sixel images)
)
if test "x$enable_sixel" = xyes; then
AC_DEFINE(ENABLE_SIXEL)
fi
AM_CONDITIONAL(ENABLE_SIXEL, [test "x$enable_sixel" = xyes])
# Check for b64_ntop. If we have b64_ntop, we assume b64_pton as well.
AC_MSG_CHECKING(for b64_ntop)
AC_LINK_IFELSE([AC_LANG_PROGRAM(
[
#include <sys/types.h>
#include <netinet/in.h>
#include <resolv.h>
],
[
b64_ntop(NULL, 0, NULL, 0);
])],
found_b64_ntop=yes,
found_b64_ntop=no
)
AC_MSG_RESULT($found_b64_ntop)
OLD_LIBS="$LIBS"
if test "x$found_b64_ntop" = xno; then
AC_MSG_CHECKING(for b64_ntop with -lresolv)
LIBS="$OLD_LIBS -lresolv"
AC_LINK_IFELSE([AC_LANG_PROGRAM(
[
#include <sys/types.h>
#include <netinet/in.h>
#include <resolv.h>
],
[
b64_ntop(NULL, 0, NULL, 0);
])],
found_b64_ntop=yes,
found_b64_ntop=no
)
AC_MSG_RESULT($found_b64_ntop)
fi
if test "x$found_b64_ntop" = xno; then
AC_MSG_CHECKING(for b64_ntop with -lnetwork)
LIBS="$OLD_LIBS -lnetwork"
AC_LINK_IFELSE([AC_LANG_PROGRAM(
[
#include <sys/types.h>
#include <netinet/in.h>
#include <resolv.h>
],
[
b64_ntop(NULL, 0, NULL, 0);
])],
found_b64_ntop=yes,
found_b64_ntop=no
)
AC_MSG_RESULT($found_b64_ntop)
fi
if test "x$found_b64_ntop" = xyes; then
AC_DEFINE(HAVE_B64_NTOP)
else
LIBS="$OLD_LIBS"
AC_LIBOBJ(base64)
fi
# Look for networking libraries.
AC_SEARCH_LIBS(inet_ntoa, nsl)
AC_SEARCH_LIBS(socket, socket)
AC_CHECK_LIB(xnet, socket)
# Check if using glibc and have malloc_trim(3). The glibc free(3) is pretty bad
# about returning memory to the kernel unless the application tells it when to
# with malloc_trim(3).
AC_MSG_CHECKING(if free doesn't work very well)
AC_LINK_IFELSE([AC_LANG_SOURCE(
[
#include <stdlib.h>
#ifdef __GLIBC__
#include <malloc.h>
int main(void) {
malloc_trim (0);
exit(0);
}
#else
no
#endif
])],
found_malloc_trim=yes,
found_malloc_trim=no
)
AC_MSG_RESULT($found_malloc_trim)
if test "x$found_malloc_trim" = xyes; then
AC_DEFINE(HAVE_MALLOC_TRIM)
fi
# Check for CMSG_DATA. On some platforms like HP-UX this requires UNIX 95
# (_XOPEN_SOURCE and _XOPEN_SOURCE_EXTENDED) (see xopen_networking(7)). On
# others, UNIX 03 (_XOPEN_SOURCE 600, see standards(7) on Solaris).
XOPEN_DEFINES=
AC_MSG_CHECKING(for CMSG_DATA)
AC_EGREP_CPP(
yes,
[
#include <sys/socket.h>
#ifdef CMSG_DATA
yes
#endif
],
found_cmsg_data=yes,
found_cmsg_data=no
)
AC_MSG_RESULT($found_cmsg_data)
if test "x$found_cmsg_data" = xno; then
AC_MSG_CHECKING(if CMSG_DATA needs _XOPEN_SOURCE_EXTENDED)
AC_EGREP_CPP(
yes,
[
#define _XOPEN_SOURCE 1
#define _XOPEN_SOURCE_EXTENDED 1
#include <sys/socket.h>
#ifdef CMSG_DATA
yes
#endif
],
found_cmsg_data=yes,
found_cmsg_data=no
)
AC_MSG_RESULT($found_cmsg_data)
if test "x$found_cmsg_data" = xyes; then
XOPEN_DEFINES="-D_XOPEN_SOURCE -D_XOPEN_SOURCE_EXTENDED"
fi
fi
if test "x$found_cmsg_data" = xno; then
AC_MSG_CHECKING(if CMSG_DATA needs _XOPEN_SOURCE 600)
AC_EGREP_CPP(
yes,
[
#define _XOPEN_SOURCE 600
#include <sys/socket.h>
#ifdef CMSG_DATA
yes
#endif
],
found_cmsg_data=yes,
found_cmsg_data=no
)
AC_MSG_RESULT($found_cmsg_data)
if test "x$found_cmsg_data" = xyes; then
XOPEN_DEFINES="-D_XOPEN_SOURCE=600"
else
AC_MSG_ERROR("CMSG_DATA not found")
fi
fi
AC_SUBST(XOPEN_DEFINES)
# Look for err and friends in err.h.
AC_CHECK_FUNC(err, found_err_h=yes, found_err_h=no)
AC_CHECK_FUNC(errx, , found_err_h=no)
AC_CHECK_FUNC(warn, , found_err_h=no)
AC_CHECK_FUNC(warnx, , found_err_h=no)
if test "x$found_err_h" = xyes; then
AC_CHECK_HEADER(err.h, , found_err_h=no)
else
AC_LIBOBJ(err)
fi
# Look for imsg_init in libutil.
AC_SEARCH_LIBS(imsg_init, util, found_imsg_init=yes, found_imsg_init=no)
if test "x$found_imsg_init" = xyes; then
AC_DEFINE(HAVE_IMSG)
else
AC_LIBOBJ(imsg)
AC_LIBOBJ(imsg-buffer)
fi
# Look for daemon, compat/daemon.c used if missing. Solaris 10 has it in
# libresolv, but no declaration anywhere, so check for declaration as well as
# function.
AC_CHECK_FUNC(daemon, found_daemon=yes, found_daemon=no)
AC_CHECK_DECL(
daemon,
,
found_daemon=no,
[
#include <stdlib.h>
#include <unistd.h>
]
)
if test "x$found_daemon" = xyes; then
AC_DEFINE(HAVE_DAEMON)
else
AC_LIBOBJ(daemon)
fi
# Look for stravis, compat/{vis,unvis}.c used if missing.
AC_CHECK_FUNC(stravis, found_stravis=yes, found_stravis=no)
if test "x$found_stravis" = xyes; then
AC_MSG_CHECKING(if strnvis is broken)
AC_EGREP_HEADER([strnvis\(char \*, const char \*, size_t, int\)],
vis.h,
AC_MSG_RESULT(no),
[found_stravis=no])
if test "x$found_stravis" = xno; then
AC_MSG_RESULT(yes)
fi
fi
if test "x$found_stravis" = xyes; then
AC_CHECK_DECL(
VIS_DQ,
,
found_stravis=no,
[
#include <stdlib.h>
#include <vis.h>
]
)
fi
if test "x$found_stravis" = xyes; then
AC_DEFINE(HAVE_VIS)
else
AC_LIBOBJ(vis)
AC_LIBOBJ(unvis)
fi
# Look for fdforkpty and forkpty in libutil.
AC_SEARCH_LIBS(fdforkpty, util, found_fdforkpty=yes, found_fdforkpty=no)
if test "x$found_fdforkpty" = xyes; then
AC_DEFINE(HAVE_FDFORKPTY)
else
AC_LIBOBJ(fdforkpty)
fi
AC_SEARCH_LIBS(forkpty, util, found_forkpty=yes, found_forkpty=no)
if test "x$found_forkpty" = xyes; then
AC_DEFINE(HAVE_FORKPTY)
fi
AM_CONDITIONAL(NEED_FORKPTY, test "x$found_forkpty" = xno)
# Look for kinfo_getfile in libutil.
AC_SEARCH_LIBS(kinfo_getfile, [util util-freebsd])
# Look for a suitable queue.h.
AC_CHECK_DECL(
TAILQ_CONCAT,
found_queue_h=yes,
found_queue_h=no,
[#include <sys/queue.h>]
)
AC_CHECK_DECL(
TAILQ_PREV,
,
found_queue_h=no,
[#include <sys/queue.h>]
)
AC_CHECK_DECL(
TAILQ_REPLACE,
,
found_queue_h=no,
[#include <sys/queue.h>]
)
if test "x$found_queue_h" = xyes; then
AC_DEFINE(HAVE_QUEUE_H)
fi
# Look for __progname.
AC_MSG_CHECKING(for __progname)
AC_LINK_IFELSE([AC_LANG_SOURCE(
[
#include <stdio.h>
#include <stdlib.h>
extern char *__progname;
int main(void) {
const char *cp = __progname;
printf("%s\n", cp);
exit(0);
}
])],
[AC_DEFINE(HAVE___PROGNAME) AC_MSG_RESULT(yes)],
AC_MSG_RESULT(no)
)
# Look for program_invocation_short_name.
AC_MSG_CHECKING(for program_invocation_short_name)
AC_LINK_IFELSE([AC_LANG_SOURCE(
[
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
int main(void) {
const char *cp = program_invocation_short_name;
printf("%s\n", cp);
exit(0);
}
])],
[AC_DEFINE(HAVE_PROGRAM_INVOCATION_SHORT_NAME) AC_MSG_RESULT(yes)],
AC_MSG_RESULT(no)
)
# Look for prctl(PR_SET_NAME).
AC_CHECK_DECL(
PR_SET_NAME,
AC_DEFINE(HAVE_PR_SET_NAME),
,
[#include <sys/prctl.h>]
)
# Look for setsockopt(SO_PEERCRED).
AC_CHECK_DECL(
SO_PEERCRED,
AC_DEFINE(HAVE_SO_PEERCRED),
,
[#include <sys/socket.h>]
)
# Look for fcntl(F_CLOSEM).
AC_CHECK_DECL(
F_CLOSEM,
AC_DEFINE(HAVE_FCNTL_CLOSEM),
,
[#include <fcntl.h>]
)
# Look for /proc/$$.
AC_MSG_CHECKING(for /proc/\$\$)
if test -d /proc/$$; then
AC_DEFINE(HAVE_PROC_PID)
AC_MSG_RESULT(yes)
else
AC_MSG_RESULT(no)
fi
# Try to figure out what the best value for TERM might be.
if test "x$DEFAULT_TERM" = x; then
DEFAULT_TERM=screen
AC_MSG_CHECKING(TERM)
AC_RUN_IFELSE([AC_LANG_SOURCE(
[
#include <stdio.h>
#include <stdlib.h>
#if defined(HAVE_CURSES_H)
#include <curses.h>
#elif defined(HAVE_NCURSES_H)
#include <ncurses.h>
#endif
#include <term.h>
int main(void) {
if (setupterm("screen-256color", -1, NULL) != OK)
exit(1);
exit(0);
}
])],
[DEFAULT_TERM=screen-256color],
,
[DEFAULT_TERM=screen]
)
AC_RUN_IFELSE([AC_LANG_SOURCE(
[
#include <stdio.h>
#include <stdlib.h>
#if defined(HAVE_CURSES_H)
#include <curses.h>
#elif defined(HAVE_NCURSES_H)
#include <ncurses.h>
#endif
#include <term.h>
int main(void) {
if (setupterm("tmux", -1, NULL) != OK)
exit(1);
exit(0);
}
])],
[DEFAULT_TERM=tmux],
,
[DEFAULT_TERM=screen]
)
AC_RUN_IFELSE([AC_LANG_SOURCE(
[
#include <stdio.h>
#include <stdlib.h>
#if defined(HAVE_CURSES_H)
#include <curses.h>
#elif defined(HAVE_NCURSES_H)
#include <ncurses.h>
#endif
#include <term.h>
int main(void) {
if (setupterm("tmux-256color", -1, NULL) != OK)
exit(1);
exit(0);
}
])],
[DEFAULT_TERM=tmux-256color],
,
[DEFAULT_TERM=screen]
)
AC_MSG_RESULT($DEFAULT_TERM)
fi
AC_SUBST(DEFAULT_TERM)
# Man page defaults to mdoc.
MANFORMAT=mdoc
AC_SUBST(MANFORMAT)
# Figure out the platform.
AC_MSG_CHECKING(platform)
case "$host_os" in
*aix*)
AC_MSG_RESULT(aix)
PLATFORM=aix
;;
*darwin*)
AC_MSG_RESULT(darwin)
PLATFORM=darwin
#
# macOS uses __dead2 instead of __dead, like FreeBSD. But it defines
# __dead away so it needs to be removed before we can replace it.
#
AC_DEFINE(BROKEN___DEAD)
#
# macOS CMSG_FIRSTHDR is broken, so redefine it with a working one.
# daemon works but has some stupid side effects, so use our internal
# version which has a workaround.
#
AC_DEFINE(BROKEN_CMSG_FIRSTHDR)
AC_LIBOBJ(daemon)
AC_LIBOBJ(daemon-darwin)
#
# macOS wcwidth(3) is bad, so complain and suggest using utf8proc
# instead.
#
if test "x$enable_utf8proc" = x; then
AC_MSG_NOTICE([])
AC_MSG_NOTICE([ macOS library support for Unicode is very poor,])
AC_MSG_NOTICE([ particularly for complex codepoints like emojis;])
AC_MSG_NOTICE([ to use these correctly, configuring with])
AC_MSG_NOTICE([ --enable-utf8proc is recommended. To build])
AC_MSG_NOTICE([ without anyway, use --disable-utf8proc])
AC_MSG_NOTICE([])
AC_MSG_ERROR([must give --enable-utf8proc or --disable-utf8proc])
fi
;;
*dragonfly*)
AC_MSG_RESULT(dragonfly)
PLATFORM=dragonfly
;;
*linux*)
AC_MSG_RESULT(linux)
PLATFORM=linux
;;
*freebsd*)
AC_MSG_RESULT(freebsd)
PLATFORM=freebsd
;;
*netbsd*)
AC_MSG_RESULT(netbsd)
PLATFORM=netbsd
;;
*openbsd*)
AC_MSG_RESULT(openbsd)
PLATFORM=openbsd
;;
*sunos*)
AC_MSG_RESULT(sunos)
PLATFORM=sunos
;;
*solaris*)
AC_MSG_RESULT(sunos)
PLATFORM=sunos
case `/usr/bin/nroff --version 2>&1` in
*GNU*)
# Solaris 11.4 and later use GNU groff.
MANFORMAT=mdoc
;;
*)
# Solaris 2.0 to 11.3 use AT&T nroff.
MANFORMAT=man
;;
esac
;;
*hpux*)
AC_MSG_RESULT(hpux)
PLATFORM=hpux
;;
*cygwin*|*msys*)
AC_MSG_RESULT(cygwin)
PLATFORM=cygwin
;;
*haiku*)
AC_MSG_RESULT(haiku)
PLATFORM=haiku
;;
*)
AC_MSG_RESULT(unknown)
PLATFORM=unknown
;;
esac
AC_SUBST(PLATFORM)
AM_CONDITIONAL(IS_AIX, test "x$PLATFORM" = xaix)
AM_CONDITIONAL(IS_DARWIN, test "x$PLATFORM" = xdarwin)
AM_CONDITIONAL(IS_DRAGONFLY, test "x$PLATFORM" = xdragonfly)
AM_CONDITIONAL(IS_LINUX, test "x$PLATFORM" = xlinux)
AM_CONDITIONAL(IS_FREEBSD, test "x$PLATFORM" = xfreebsd)
AM_CONDITIONAL(IS_NETBSD, test "x$PLATFORM" = xnetbsd)
AM_CONDITIONAL(IS_OPENBSD, test "x$PLATFORM" = xopenbsd)
AM_CONDITIONAL(IS_SUNOS, test "x$PLATFORM" = xsunos)
AM_CONDITIONAL(IS_HPUX, test "x$PLATFORM" = xhpux)
AM_CONDITIONAL(IS_HAIKU, test "x$PLATFORM" = xhaiku)
AM_CONDITIONAL(IS_UNKNOWN, test "x$PLATFORM" = xunknown)
# Set the default lock command
DEFAULT_LOCK_CMD="lock -np"
AC_MSG_CHECKING(lock-command)
if test "x$PLATFORM" = xlinux; then
AC_CHECK_PROG(found_vlock, vlock, yes, no)
if test "x$found_vlock" = xyes; then
DEFAULT_LOCK_CMD="vlock"
fi
fi
AC_MSG_RESULT($DEFAULT_LOCK_CMD)
AC_SUBST(DEFAULT_LOCK_CMD)
# Save our CFLAGS/CPPFLAGS/LDFLAGS for the Makefile and restore the old user
# variables.
AC_SUBST(AM_CPPFLAGS)
CPPFLAGS="$SAVED_CPPFLAGS"
AC_SUBST(AM_CFLAGS)
CFLAGS="$SAVED_CFLAGS"
AC_SUBST(AM_LDFLAGS)
LDFLAGS="$SAVED_LDFLAGS"
# autoconf should create a Makefile.
AC_CONFIG_FILES(Makefile)
AC_OUTPUT
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