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37b27d2eef
tmux/configure.ac
Rafael Kitover 37b27d2eef
Support use as a Windows program outside of Cygwin 
If `getenv("SHELL")` is `NULL`, use the function `win32_setenv_shell()`
added to `osdep-win32-cpp.cpp` to set it using the command line of the
parent process, which is retrieved using WMI WIN32 API.

This is a C++ file because the OLE/WMI API is only available for C++.
Adjust the autotools code to add this file and link the necessary
Windows DLLs.

Include some fixed/missing MINGW headers necessary to compile this file.
This will be fixed in the relevant places and they will be removed.

Add a new macro WIN32_PLATFORM for Windows specific functionality, currently
Cygwin and MSYS2, in the future for the native port as well.

When spawning commands using the shell, check for cmd.exe on Windows and
use the `/c` switch, otherwise use `-c` which works for PowerShell,
MSYS2, Cygwin and Git Bash etc..

Adjust code that uses `/tmp/` to use
`$env:USERPROFILE/AppData/Local/Temp/` outside of a Cygwin virtual
filesystem when `/tmp/` is not available, add the function
`win32_get_tmpdir()` and related functions to `osdep-win32.c` for this.

Use `getenv("USERPROFILE")` when `getenv("HOME")` is `NULL`.

When outside of a Cygwin virtual filesystem, use
`C:\ProgramData\tmux\tmux.conf:$USERPROFILE\.tmux.conf:$LOCALAPPDATA\tmux\tmux.conf`
as the config search order.

Use the ncurses term-driver with `TERM="#win32con"` when a terminfo
database is not available. This will require patches to ncurses as well
as MSYS2 and Cygwin to work.

Signed-off-by: Rafael Kitover <rkitover@gmail.com>
2024-10-02 16:01:39 +00:00

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# configure.ac
AC_INIT([tmux], next-3.6)
AC_PREREQ([2.60])
AC_CANONICAL_HOST
AC_CANONICAL_TARGET
AC_CONFIG_AUX_DIR(etc)
AC_CONFIG_LIBOBJ_DIR(compat)
AM_INIT_AUTOMAKE([foreign subdir-objects])
# 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
AC_ARG_ENABLE(
utf8proc,
AS_HELP_STRING(--enable-utf8proc, use utf8proc if it is installed)
)
# Figure out the platform.
AC_MSG_CHECKING(platform)
case "$target_os" in
*aix*)
AC_MSG_RESULT(aix)
PLATFORM=aix
;;
*darwin*)
AC_MSG_RESULT(darwin)
PLATFORM=darwin
#
# macOS uses __dead2 instead of __dead, like FreeBSD. But it defines
# __dead away so it needs to be removed before we can replace it.
#
AC_DEFINE(BROKEN___DEAD)
#
# macOS CMSG_FIRSTHDR is broken, so redefine it with a working one.
# daemon works but has some stupid side effects, so use our internal
# version which has a workaround.
#
AC_DEFINE(BROKEN_CMSG_FIRSTHDR)
AC_LIBOBJ(daemon)
AC_LIBOBJ(daemon-darwin)
#
# macOS wcwidth(3) is bad, so complain and suggest using utf8proc
# instead.
#
if test "x$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
;;
*)
if test `uname -o 2>/dev/null` = illumos; then
# Illumos uses mandoc.
MANFORMAT=mdoc
else
# Solaris 2.0 to 11.3 use AT&T nroff.
MANFORMAT=man
fi
;;
esac
;;
*hpux*)
AC_MSG_RESULT(hpux)
PLATFORM=hpux
;;
*cygwin*|*msys*)
AC_MSG_RESULT(cygwin)
PLATFORM=cygwin
TARGET_WIN32=yes
AC_DEFINE(TARGET_WIN32)
AM_CONDITIONAL(TARGET_WIN32, test "x$TARGET_WIN32" = xyes)
;;
*haiku*)
AC_MSG_RESULT(haiku)
PLATFORM=haiku
;;
*)
AC_MSG_RESULT(unknown)
PLATFORM=unknown
;;
esac
AC_SUBST(PLATFORM)
AM_CONDITIONAL(IS_AIX, test "x$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_CYGWIN, test "x$PLATFORM" = xcygwin)
AM_CONDITIONAL(IS_HAIKU, test "x$PLATFORM" = xhaiku)
AM_CONDITIONAL(IS_UNKNOWN, test "x$PLATFORM" = xunknown)
# Set up the compiler in two different ways and say yes we may want to install.
m4_version_prereq(2.70, [AC_PROG_CC], [AC_PROG_CC_C99])
if test "x$TARGET_WIN32" = xyes; then
AC_PROG_CXX
CFLAGS="$CFLAGS -isystem $(dirname $(readlink -f $0))/third_party/mingw_headers"
CXXFLAGS="$CXXFLAGS -std=c++17 -isystem $(dirname $(readlink -f $0))/third_party/mingw_headers -O2 -fpermissive -Wno-write-strings -Wno-class-conversion"
fi
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" = '${prefix}/etc' && sysconfdir=/etc
# Is this --enable-debug?
AC_ARG_ENABLE(
debug,
AS_HELP_STRING(--enable-debug, enable debug build flags),
,
[case "x$VERSION" in xnext*) enable_debug=yes;; esac]
)
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.
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
# Build against jemalloc if requested.
AC_ARG_ENABLE(
jemalloc,
AS_HELP_STRING(--enable-jemalloc, use jemalloc if it is installed)
)
if test "x$enable_jemalloc" = xyes; then
PKG_CHECK_MODULES(
JEMALLOC,
jemalloc,
[
AM_CPPFLAGS="$JEMALLOC_CFLAGS $AM_CPPFLAGS"
CPPFLAGS="$AM_CPPFLAGS $SAVED_CPPFLAGS"
LIBS="$LIBS $JEMALLOC_LIBS"
],
AC_MSG_ERROR("jemalloc not found")
)
fi
# Check for CMSG_DATA. On some platforms like HP-UX this requires UNIX 95
# (_XOPEN_SOURCE and _XOPEN_SOURCE_EXTENDED) (see xopen_networking(7)). On
# others, UNIX 03 (_XOPEN_SOURCE 600, see standards(7) on Solaris).
XOPEN_DEFINES=
AC_MSG_CHECKING(for CMSG_DATA)
AC_EGREP_CPP(
yes,
[
#include <sys/socket.h>
#ifdef CMSG_DATA
yes
#endif
],
found_cmsg_data=yes,
found_cmsg_data=no
)
AC_MSG_RESULT($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)
# 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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