diff options
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 551 |
1 files changed, 551 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac new file mode 100644 index 00000000..82e8a452 --- /dev/null +++ b/configure.ac @@ -0,0 +1,551 @@ +# configure.ac + +AC_INIT(tmux, 2.2) + +AC_CONFIG_AUX_DIR(etc) +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=""} + +# Set up the compiler in two different ways and say yes we may want to install. +AC_PROG_CC +AM_PROG_CC_C_O +AC_PROG_CPP +AC_PROG_EGREP +AC_PROG_INSTALL +PKG_PROG_PKG_CONFIG + +# Default tmux.conf goes in /etc not ${prefix}/etc. +test "$sysconfdir" = '${prefix}/etc' && sysconfdir=/etc + +# Is this --enable-debug? +found_debug=yes +AC_ARG_ENABLE( + debug, + AC_HELP_STRING(--enable-debug, enable debug build flags), + found_debug=$enable_debug +) +AM_CONDITIONAL(IS_DEBUG, test "x$found_debug" = xyes) + +# Is this --enable-coverage? +AC_ARG_ENABLE( + coverage, + AC_HELP_STRING(--enable-coverage, enable coverage build flags), + found_coverage=$enable_coverage +) +AM_CONDITIONAL(IS_COVERAGE, test "x$found_coverage" = xyes) + +# Is this a static build? +AC_ARG_ENABLE( + static, + AC_HELP_STRING(--enable-static, create a static build), + found_static=$enable_static +) +if test "x$found_static" = xyes; then + LDFLAGS="$LDFLAGS -static" + PKG_CONFIG="pkg-config --static" +fi + +# Is this gcc? +AM_CONDITIONAL(IS_GCC, test "x$GCC" = xyes) + +# Is this Sun CC? +AC_EGREP_CPP( + yes, + [ + #ifdef __SUNPRO_C + yes + #endif + ], + found_suncc=yes, + found_suncc=no +) +AM_CONDITIONAL(IS_SUNCC, test "x$found_suncc" = xyes) + +# Is this glibc? +AC_MSG_CHECKING(for glibc) +AC_EGREP_CPP( + yes, + [ + #include <features.h> + #ifdef __GLIBC__ + yes + #endif + ], + found_glibc=yes, + found_glibc=no +) +AM_CONDITIONAL(IS_GLIBC, test "x$found_glibc" = xyes) +AC_MSG_RESULT($found_glibc) + +# Check for various headers. Alternatives included from compat.h. +AC_CHECK_HEADERS( + [ \ + bitstring.h \ + curses.h \ + dirent.h \ + fcntl.h \ + inttypes.h \ + libutil.h \ + ncurses.h \ + ndir.h \ + paths.h \ + pty.h \ + stdint.h \ + sys/dir.h \ + sys/ndir.h \ + sys/tree.h \ + term.h \ + util.h \ + ] +) + +# Look for library needed for flock. +AC_SEARCH_LIBS(flock, bsd) + +# Check for some functions that are replaced or omitted. +AC_CHECK_FUNCS( + [ \ + dirfd \ + flock \ + setproctitle \ + sysconf \ + cfmakeraw \ + ] +) + +# Look for clock_gettime. Must come before event_init. +AC_SEARCH_LIBS(clock_gettime, rt) + +# Look for libevent. +PKG_CHECK_MODULES( + LIBEVENT, + libevent, + [ + CPPFLAGS="$LIBEVENT_CFLAGS $CPPFLAGS" + LIBS="$LIBEVENT_LIBS $LIBS" + found_libevent=yes + ], + [ + AC_SEARCH_LIBS( + event_init, + [event event-1.4 event2], + found_libevent=yes, + found_libevent=no + ) + ] +) +if test "x$found_libevent" = xno; then + AC_MSG_ERROR("libevent not found") +fi + +# Look for ncurses +PKG_CHECK_MODULES( + LIBNCURSES, + ncurses, + [ + CPPFLAGS="$LIBNCURSES_CFLAGS $CPPFLAGS" + LIBS="$LIBNCURSES_LIBS $LIBS" + found_curses=yes + ], + [ + AC_SEARCH_LIBS( + setupterm, + [ncurses curses terminfo], + found_curses=yes, + found_curses=no + ) + ] +) +if test "x$found_curses" = xno; then + AC_MSG_ERROR("curses not found") +fi + +# Look for utempter. +AC_CHECK_HEADER(utempter.h, have_utempter=yes, have_utempter=no) +if test "x$have_utempter" = xyes; then + AC_DEFINE(HAVE_UTEMPTER) + LIBS="$LIBS -lutempter" +fi + +# Check for b64_ntop. +AC_MSG_CHECKING(for b64_ntop) +AC_TRY_LINK( + [ + #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 +) +if test "x$found_b64_ntop" = xno; then + AC_MSG_RESULT(no) + + AC_MSG_CHECKING(for b64_ntop with -lresolv) + LIBS="$LIBS -lresolv" + AC_TRY_LINK( + [ + #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 + ) + if test "x$found_b64_ntop" = xno; then + AC_MSG_RESULT(no) + fi +fi +if test "x$found_b64_ntop" = xyes; then + AC_DEFINE(HAVE_B64_NTOP) + AC_MSG_RESULT(yes) +fi +AM_CONDITIONAL(NO_B64_NTOP, [test "x$found_b64_ntop" = xno]) + +# Look for networking libraries. +AC_SEARCH_LIBS(inet_ntoa, nsl) +AC_SEARCH_LIBS(socket, socket) +AC_CHECK_LIB(xnet, socket) + +# Check for CMSG_DATA. Some platforms require _XOPEN_SOURCE_EXTENDED (for +# example see xopen_networking(7) on HP-UX). +XOPEN_DEFINES= +AC_MSG_CHECKING(for CMSG_DATA) +AC_EGREP_CPP( + yes, + [ + #include <sys/socket.h> + #ifdef CMSG_DATA + yes + #endif + ], + found_cmsg_data=yes, + found_cmsg_data=no +) +AC_MSG_RESULT($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$found_cmsg_data" = xyes; then + XOPEN_DEFINES="-D_XOPEN_SOURCE -D_XOPEN_SOURCE_EXTENDED" + else + AC_MSG_ERROR("CMSG_DATA not found") + fi +fi +AC_SUBST(XOPEN_DEFINES) + +# Look for imsg in libutil. compat/imsg.c is linked by Makefile.am if missing. +AC_SEARCH_LIBS(imsg_init, util, found_imsg_init=yes, found_imsg_init=no) +if test "x$found_imsg_init" = xyes; then + AC_DEFINE(HAVE_IMSG) +fi +AM_CONDITIONAL(NO_IMSG, [test "x$found_imsg_init" = xno]) + +# Look for forkpty in libutil. compat/forkpty-*.c is linked if not found. +AC_SEARCH_LIBS(forkpty, util, found_forkpty=yes, found_forkpty=no) +if test "x$found_forkpty" = xyes; then + AC_DEFINE(HAVE_FORKPTY) +fi +AM_CONDITIONAL(NO_FORKPTY, [test "x$found_forkpty" = xno]) + +# Look for closefrom, compat/closefrom.c used if missing. +AC_CHECK_FUNC(closefrom, found_closefrom=yes, found_closefrom=no) +if test "x$found_closefrom" = xyes; then + AC_DEFINE(HAVE_CLOSEFROM) +fi +AM_CONDITIONAL(NO_CLOSEFROM, [test "x$found_closefrom" = xno]) + +# Look for daemon, compat/daemon.c used if missing. +AC_CHECK_FUNC(daemon, found_daemon=yes, found_daemon=no) +if test "x$found_daemon" = xyes; then + AC_DEFINE(HAVE_DAEMON) +fi +AM_CONDITIONAL(NO_DAEMON, [test "x$found_daemon" = xno]) + +# Look for setenv, compat/setenv.c used if missing. +AC_CHECK_FUNC(setenv, found_setenv=yes, found_setenv=no) +if test "x$found_setenv" = xyes; then + AC_DEFINE(HAVE_SETENV) +fi +AM_CONDITIONAL(NO_SETENV, [test "x$found_setenv" = xno]) + +# Look for strlcpy, compat/strlcpy.c used if missing. +AC_CHECK_FUNC(strlcpy, found_strlcpy=yes, found_strlcpy=no) +if test "x$found_strlcpy" = xyes; then + AC_DEFINE(HAVE_STRLCPY) +fi +AM_CONDITIONAL(NO_STRLCPY, [test "x$found_strlcpy" = xno]) + +# Look for strlcat, compat/strlcat.c used if missing. +AC_CHECK_FUNC(strlcat, found_strlcat=yes, found_strlcat=no) +if test "x$found_strlcat" = xyes; then + AC_DEFINE(HAVE_STRLCAT) +fi +AM_CONDITIONAL(NO_STRLCAT, [test "x$found_strlcat" = xno]) + +# Look for asprintf, compat/asprintf.c used if missing. +AC_CHECK_FUNC(asprintf, found_asprintf=yes, found_asprintf=no) +if test "x$found_asprintf" = xyes; then + AC_DEFINE(HAVE_ASPRINTF) +fi +AM_CONDITIONAL(NO_ASPRINTF, [test "x$found_asprintf" = xno]) + +# Look for fgetln, compat/fgetln.c used if missing. +AC_CHECK_FUNC(fgetln, found_fgetln=yes, found_fgetln=no) +if test "x$found_fgetln" = xyes; then + AC_DEFINE(HAVE_FGETLN) +fi +AM_CONDITIONAL(NO_FGETLN, [test "x$found_fgetln" = xno]) + +# Look for fparseln, compat/fparseln.c used if missing. +AC_CHECK_FUNC(fparseln, found_fparseln=yes, found_fparseln=no) +if test "x$found_fparseln" = xyes; then + AC_DEFINE(HAVE_FPARSELN) +fi +AM_CONDITIONAL(NO_FPARSELN, [test "x$found_fparseln" = xno]) + +# Look for strcasestr, compat/strcasestr.c used if missing. +AC_CHECK_FUNC(strcasestr, found_strcasestr=yes, found_strcasestr=no) +if test "x$found_strcasestr" = xyes; then + AC_DEFINE(HAVE_STRCASESTR) +fi +AM_CONDITIONAL(NO_STRCASESTR, [test "x$found_strcasestr" = xno]) + +# Look for strsep, compat/strsep.c used if missing. +AC_CHECK_FUNC(strsep, found_strsep=yes, found_strsep=no) +if test "x$found_strsep" = xyes; then + AC_DEFINE(HAVE_STRSEP) +fi +AM_CONDITIONAL(NO_STRSEP, [test "x$found_strsep" = xno]) + +# Look for strtonum, compat/strtonum.c used if missing. +AC_CHECK_FUNC(strtonum, found_strtonum=yes, found_strtonum=no) +if test "x$found_strtonum" = xyes; then + AC_DEFINE(HAVE_STRTONUM) +fi +AM_CONDITIONAL(NO_STRTONUM, [test "x$found_strtonum" = xno]) + +# Look for stravis, compat/{vis,unvis}.c used if missing. +AC_CHECK_FUNC(stravis, found_stravis=yes, found_stravis=no) +if test "x$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_DEFINE(HAVE_VIS) +fi +AM_CONDITIONAL(NO_VIS, [test "x$found_stravis" = xno]) + +# Look for cfmakeraw, compat/cfmakeraw.c used if missing. +AC_CHECK_FUNC(cfmakeraw, found_cfmakeraw=yes, found_cfmakeraw=no) +if test "x$found_cfmakeraw" = xyes; then + AC_DEFINE(HAVE_CFMAKERAW) +fi +AM_CONDITIONAL(NO_CFMAKERAW, [test "x$found_cfmakeraw" = xno]) + +# Look for openat, compat/openat.c used if missing. +AC_CHECK_FUNC(openat, found_openat=yes, found_openat=no) +if test "x$found_openat" = xyes; then + AC_DEFINE(HAVE_OPENAT) +fi +AM_CONDITIONAL(NO_OPENAT, [test "x$found_openat" = xno]) + +# Look for reallocarray, compat/reallocarray.c used if missing. +AC_CHECK_FUNC(reallocarray, found_reallocarray=yes, found_reallocarray=no) +if test "x$found_reallocarray" = xyes; then + AC_DEFINE(HAVE_REALLOCARRAY) +fi +AM_CONDITIONAL(NO_REALLOCARRAY, [test "x$found_reallocarray" = xno]) + +# Look for getopt. glibc's getopt does not enforce argument order and the ways +# of making it do so are stupid, so just use our own instead. +AC_CHECK_FUNC(getopt, found_getopt=yes, found_getopt=no) +if test "x$found_getopt" != xno; then + AC_CHECK_DECLS( + [optarg, optind, optreset], + , + found_getopt=no, + [ + #include <unistd.h> + ] + ) + if test "x$found_getopt" != xno; then + AC_MSG_CHECKING(if system getopt should be avoided) + if test "x$found_glibc" = xyes; then + found_getopt=no + AC_MSG_RESULT(yes) + else + AC_MSG_RESULT(no) + AC_DEFINE(HAVE_GETOPT) + fi + fi +fi +AM_CONDITIONAL(NO_GETOPT, [test "x$found_getopt" = xno]) + +# Check for BSD-style integer types. +AC_MSG_CHECKING(for BSD-style unsigned types) +AC_COMPILE_IFELSE([AC_LANG_SOURCE( + [ + #include <sys/types.h> + #ifdef HAVE_STDINT_H + #include <stdint.h> + #else + #include <inttypes.h> + #endif + int main(void) + { u_int8_t u8; u_int16_t u16; u_int32_t u32; u_int64_t u64; } + ])], + [AC_DEFINE(HAVE_BSD_TYPES) AC_MSG_RESULT(yes)], + AC_MSG_RESULT(no) +) + +# Look for a suitable queue.h. +AC_CHECK_DECL( + TAILQ_PREV, + found_queue_h=yes, + found_queue_h=no, + [#include <sys/queue.h>] +) +AC_CHECK_DECL( + TAILQ_REPLACE, + , + found_queue_h=no, + [#include <sys/queue.h>] +) +if test "x$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 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 + +# Man page defaults to mdoc. +MANFORMAT=mdoc +AC_SUBST(MANFORMAT) + +# Figure out the platform for osdep-*.c and forkpty-*.c. +AC_MSG_CHECKING(platform) +case "$host_os" in + *aix*) + AC_MSG_RESULT(aix) + PLATFORM=aix + ;; + *darwin*) + AC_MSG_RESULT(darwin) + AC_DEFINE(BROKEN_CMSG_FIRSTHDR) + PLATFORM=darwin + ;; + *dragonfly*) + AC_MSG_RESULT(dragonfly) + PLATFORM=dragonfly + ;; + *linux*) + AC_MSG_RESULT(linux) + PLATFORM=linux + ;; + *freebsd*) + AC_MSG_RESULT(freebsd) + PLATFORM=freebsd + ;; + *netbsd*) + AC_MSG_RESULT(netbsd) + PLATFORM=netbsd + ;; + *openbsd*) + AC_MSG_RESULT(openbsd) + PLATFORM=openbsd + ;; + *sunos*) + AC_MSG_RESULT(sunos) + PLATFORM=sunos + ;; + *solaris*) + AC_MSG_RESULT(sunos) + PLATFORM=sunos + MANFORMAT=man + ;; + *hpux*) + AC_MSG_RESULT(hpux) + PLATFORM=hpux + ;; + *cygwin*) + AC_MSG_RESULT(cygwin) + PLATFORM=cygwin + ;; + *) + AC_MSG_RESULT(unknown) + PLATFORM=unknown + ;; +esac +AC_SUBST(PLATFORM) +AM_CONDITIONAL(IS_AIX, test "x$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_UNKNOWN, test "x$PLATFORM" = xunknown) + +# autoconf should create a Makefile. +AC_OUTPUT(Makefile) |