nw="$nw -Wswitch-default" # Too many warnings for now
nw="$nw -Wfloat-equal" # warns about high-quality code
nw="$nw -Winline" # OK to ignore 'inline'
+ nw="$nw -Wjump-misses-init" # We sometimes safely jump over init.
nw="$nw -Wsync-nand" # irrelevant here, and provokes ObjC warning
nw="$nw -Wunsafe-loop-optimizations" # OK to suppress unsafe optimizations
gl_WARN_ADD([-funit-at-a-time])
AC_DEFINE([lint], [1], [Define to 1 if the compiler is checking for lint.])
- AC_DEFINE([_FORTIFY_SOURCE], [2],
- [enable compile-time and run-time bounds-checking, and some warnings])
+ AH_VERBATIM([FORTIFY_SOURCE],
+ [/* Enable compile-time and run-time bounds-checking, and some warnings,
+ without upsetting glibc 2.15+. */
+ #if defined __OPTIMIZE__ && __OPTIMIZE__
+ # define _FORTIFY_SOURCE 2
+ #endif
+ ])
AC_DEFINE([GNULIB_PORTCHECK], [1], [enable some gnulib portability checks])
# We use a slightly smaller set of warning options for lib/.
[Define to 1 if `speed_t' is declared by <termios.h>.])
fi
-AC_CACHE_CHECK(for struct exception, emacs_cv_struct_exception,
-AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <math.h>]],
-[[static struct exception x; x.arg1 = x.arg2 = x.retval; x.name = ""; x.type = 1;]])],
- emacs_cv_struct_exception=yes, emacs_cv_struct_exception=no))
-HAVE_EXCEPTION=$emacs_cv_struct_exception
-dnl Define on Darwin so emacs symbols will not conflict with those
-dnl in the System framework. Otherwise -prebind will not work.
-if test $emacs_cv_struct_exception != yes || test $opsys = darwin; then
- AC_DEFINE(NO_MATHERR, 1, [Define to 1 if you don't have struct exception in math.h.])
-fi
-
AC_CHECK_HEADERS_ONCE(sys/socket.h)
AC_CHECK_HEADERS(net/if.h, , , [AC_INCLUDES_DEFAULT
#if HAVE_SYS_SOCKET_H
#### Choose a window system.
+## We leave window_system equal to none if
+## we end up building without one. Any new window system should
+## set window_system to an appropriate value and add objects to
+## window-system-specific substs.
+
+window_system=none
AC_PATH_X
-if test "$no_x" = yes; then
- window_system=none
-else
+if test "$no_x" != yes; then
window_system=x11
fi
fi
window_system=nextstep
- with_xft=no
# set up packaging dirs
if test "${EN_NS_SELF_CONTAINED}" = yes; then
ns_self_contained=yes
INSTALL_ARCH_INDEP_EXTRA=
fi
ns_frag=$srcdir/src/ns.mk
- NS_OBJ="fontset.o fringe.o image.o"
NS_OBJC_OBJ="nsterm.o nsfns.o nsmenu.o nsselect.o nsimage.o nsfont.o"
fi
CFLAGS="$tmp_CFLAGS"
AC_SUBST(LIB_STANDARD)
AC_SUBST_FILE(ns_frag)
+## $window_system is now set to the window system we will
+## ultimately use.
+
+term_header=
+HAVE_X_WINDOWS=no
+HAVE_X11=no
+USE_X_TOOLKIT=none
+
case "${window_system}" in
x11 )
HAVE_X_WINDOWS=yes
HAVE_X11=yes
+ term_header=xterm.h
case "${with_x_toolkit}" in
athena | lucid ) USE_X_TOOLKIT=LUCID ;;
motif ) USE_X_TOOLKIT=MOTIF ;;
gtk ) with_gtk=yes
+ term_header=gtkutil.h
dnl Don't set this for GTK. A lot of tests below assumes Xt when
dnl USE_X_TOOLKIT is set.
USE_X_TOOLKIT=none ;;
gtk3 ) with_gtk3=yes
+ term_header=gtkutil.h
USE_X_TOOLKIT=none ;;
no ) USE_X_TOOLKIT=none ;;
dnl If user did not say whether to use a toolkit, make this decision later:
* ) USE_X_TOOLKIT=maybe ;;
esac
;;
- nextstep | none )
- HAVE_X_WINDOWS=no
- HAVE_X11=no
- USE_X_TOOLKIT=none
+ nextstep )
+ term_header=nsterm.h
;;
esac
+if test -n "${term_header}"; then
+ AC_DEFINE_UNQUOTED(TERM_HEADER, "${term_header}",
+ [Define to the header for the built-in window system.])
+fi
+
if test "$window_system" = none && test "X$with_x" != "Xno"; then
AC_CHECK_PROG(HAVE_XSERVER, X, true, false)
if test "$HAVE_XSERVER" = true ||
fi
AC_DEFINE(HAVE_GTK3, 1, [Define to 1 if using GTK 3 or later.])
GTK_OBJ=emacsgtkfixed.o
+ term_header=gtkutil.h
fi
if test "$pkg_check_gtk" != "yes"; then
gtk_widget_get_mapped gtk_adjustment_get_page_size \
gtk_orientable_set_orientation \
gtk_window_set_has_resize_grip)
+
+ term_header=gtkutil.h
fi
dnl D-Bus has been tested under GNU/Linux only. Must be adapted for
fi
if test "$HAVE_GSETTINGS" = "yes" || test "$HAVE_GCONF" = "yes"; then
+ PKG_CHECK_MODULES(GOBJECT, gobject-2.0 >= 2.0, HAVE_GOBJECT=yes, HAVE_GOBJECT=no)
+ if test "$HAVE_GOBJECT" = "yes"; then
+ SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GOBJECT_CFLAGS"
+ SETTINGS_LIBS="$SETTINGS_LIBS $GOBJECT_LIBS"
+ fi
SAVE_CFLAGS="$CFLAGS"
SAVE_LIBS="$LIBS"
CFLAGS="$SETTINGS_CFLAGS $CFLAGS"
AC_DEFINE(HAVE_H_ERRNO, 1, [Define to 1 if netdb.h declares h_errno.])
fi
-# fmod, logb, and frexp are found in -lm on most systems.
-# On HPUX 9.01, -lm does not contain logb, so check for sqrt.
+# sqrt and other floating-point functions such as fmod and frexp
+# are found in -lm on most systems.
AC_CHECK_LIB(m, sqrt)
# Check for mail-locking functions in a "mail" library. Probably this should
AC_CHECK_FUNCS(gethostname \
closedir getrusage get_current_dir_name \
-lrand48 logb frexp fmod cbrt setsid \
+lrand48 setsid \
fpathconf select euidaccess getpagesize setlocale \
utimes getrlimit setrlimit setpgid getcwd shutdown getaddrinfo \
__fpending strsignal setitimer \
so that Emacs can tell instantly when you try to modify a file that
someone else has modified in his/her Emacs.])
-AH_TEMPLATE(FLOAT_CHECK_DOMAIN, [Define if the float library doesn't
- handle errors by either setting errno, or signaling SIGFPE/SIGILL.])
-
-AH_TEMPLATE(HAVE_INVERSE_HYPERBOLIC, [Define if you have the functions
- acosh, asinh, and atanh.])
-
dnl Everybody supports this, except MS.
dnl Seems like the kind of thing we should be testing for, though.
## Note: PTYs are broken on darwin <6. Use at your own risk.
AC_DEFINE(BROKEN_PTY_READ_AFTER_EAGAIN, 1, [Define on FreeBSD to
work around an issue when reading from a PTY.])
;;
-
- dnl Define the following so emacs symbols will not conflict with those
- dnl in the System framework. Otherwise -prebind will not work.
- darwin)
- AC_DEFINE(NO_ABORT, 1, [Do not define abort in emacs.c.])
- ;;
esac
case $opsys in
cygwin )
AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
dnl multi-line AC_DEFINEs are hard. :(
- AC_DEFINE(PTY_OPEN, [ do { int dummy; SIGMASKTYPE mask; mask = sigblock (sigmask (SIGCHLD)); if (-1 == openpty (&fd, &dummy, pty_name, 0, 0)) fd = -1; sigsetmask (mask); if (fd >= 0) emacs_close (dummy); } while (0)])
+ AC_DEFINE(PTY_OPEN, [ do { int dummy; sigset_t blocked, procmask; sigemptyset (&blocked); sigaddset (&blocked, SIGCHLD); pthread_sigmask (SIG_BLOCK, &blocked, &procmask); if (-1 == openpty (&fd, &dummy, pty_name, 0, 0)) fd = -1; pthread_sigmask (SIG_SETMASK, &procmask, 0); if (fd >= 0) emacs_close (dummy); } while (0)])
AC_DEFINE(PTY_NAME_SPRINTF, [])
AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
;;
AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
dnl Note that grantpt and unlockpt may fork. We must block SIGCHLD
dnl to prevent sigchld_handler from intercepting the child's death.
- AC_DEFINE(PTY_TTY_NAME_SPRINTF, [{ char *ptyname; sigblock (sigmask (SIGCHLD)); if (grantpt (fd) == -1 || unlockpt (fd) == -1 || !(ptyname = ptsname(fd))) { sigunblock (sigmask (SIGCHLD)); close (fd); return -1; } snprintf (pty_name, sizeof pty_name, "%s", ptyname); sigunblock (sigmask (SIGCHLD)); }])
+ AC_DEFINE(PTY_TTY_NAME_SPRINTF, [{ char *ptyname = 0; sigset_t blocked; sigemptyset (&blocked); sigaddset (&blocked, SIGCHLD); pthread_sigmask (SIG_BLOCK, &blocked, 0); if (grantpt (fd) != -1 && unlockpt (fd) != -1) ptyname = ptsname(fd); pthread_sigmask (SIG_UNBLOCK, &blocked, 0); if (!ptyname) { close (fd); return -1; } snprintf (pty_name, sizeof pty_name, "%s", ptyname); }])
dnl if HAVE_POSIX_OPENPT
if test "x$ac_cv_func_posix_openpt" = xyes; then
AC_DEFINE(PTY_OPEN, [fd = posix_openpt (O_RDWR | O_NOCTTY)])
;;
sol2* )
- dnl Uses sigblock/sigunblock rather than sighold/sigrelse,
- dnl which appear to be BSD4.1 specific. It may also be appropriate
- dnl for SVR4.x (x<2) but I'm not sure. fnf@cygnus.com
dnl On SysVr4, grantpt(3) forks a subprocess, so keep sigchld_handler()
dnl from intercepting that death. If any child but grantpt's should die
dnl within, it should be caught after sigrelse(2).
- AC_DEFINE(PTY_TTY_NAME_SPRINTF, [{ char *ptsname (int), *ptyname; sigblock (sigmask (SIGCLD)); if (grantpt (fd) == -1) { emacs_close (fd); return -1; } sigunblock (sigmask (SIGCLD)); if (unlockpt (fd) == -1) { emacs_close (fd); return -1; } if (!(ptyname = ptsname (fd))) { emacs_close (fd); return -1; } snprintf (pty_name, sizeof pty_name, "%s", ptyname); }])
+ AC_DEFINE(PTY_TTY_NAME_SPRINTF, [{ char *ptsname (int), *ptyname; int grantpt_result; sigset_t blocked; sigemptyset (&blocked); sigaddset (&blocked, SIGCLD); pthread_sigmask (SIG_BLOCK, &blocked, 0); grantpt_result = grantpt (fd); pthread_sigmask (SIG_UNBLOCK, &blocked, 0); if (grantpt_result == -1 || unlockpt (fd) == -1 || !(ptyname = ptsname (fd))) { emacs_close (fd); return -1; } snprintf (pty_name, sizeof pty_name, "%s", ptyname); }])
;;
unixware )
dnl Comments are as per sol2*.
- AC_DEFINE(PTY_TTY_NAME_SPRINTF, [{ char *ptsname (int), *ptyname; sigblock(sigmask(SIGCLD)); if (grantpt(fd) == -1) fatal("could not grant slave pty"); sigunblock(sigmask(SIGCLD)); if (unlockpt(fd) == -1) fatal("could not unlock slave pty"); if (!(ptyname = ptsname(fd))) fatal ("could not enable slave pty"); snprintf (pty_name, sizeof pty_name, "%s", ptyname); }])
+ AC_DEFINE(PTY_TTY_NAME_SPRINTF, [{ char *ptsname (int), *ptyname; int grantpt_result; sigset_t blocked; sigemptyset (&blocked); sigaddset (&blocked, SIGCLD); pthread_sigmask (SIG_BLOCK, &blocked, 0); grantpt_result = grantpt (fd); pthread_sigmask (SIG_UNBLOCK, &blocked, 0); if (grantpt_result == -1) fatal("could not grant slave pty"); if (unlockpt(fd) == -1) fatal("could not unlock slave pty"); if (!(ptyname = ptsname(fd))) fatal ("could not enable slave pty"); snprintf (pty_name, sizeof pty_name, "%s", ptyname); }])
;;
esac
esac
fi dnl GCC?
+AC_CACHE_CHECK([for _setjmp], [emacs_cv_func__setjmp],
+ [AC_LINK_IFELSE(
+ [AC_LANG_PROGRAM(
+ [[#include <setjmp.h>
+ ]],
+ [[jmp_buf j;
+ if (! _setjmp (j))
+ _longjmp (j, 1);]])],
+ [emacs_cv_func__setjmp=yes],
+ [emacs_cv_func__setjmp=no])])
+if test $emacs_cv_func__setjmp = no; then
+ AC_DEFINE([_setjmp], [setjmp],
+ [Define to setjmp if _setjmp and _longjmp do not work. See _longjmp.])
+ AC_DEFINE([_longjmp], [longjmp],
+ [Define to longjmp if _setjmp and _longjmp do not work.
+ Because longjmp may alter signal masks, callers of _longjmp
+ should not assume that it leaves signal masks alone.])
+fi
case $opsys in
sol2* | unixware )
- dnl setjmp and longjmp can safely replace _setjmp and _longjmp,
- dnl but they will run more slowly.
- AC_DEFINE(_setjmp, setjmp, [Some platforms redefine this.])
- AC_DEFINE(_longjmp, longjmp, [Some platforms redefine this.])
dnl TIOCGPGRP is broken in SysVr4, so we can't send signals to PTY
dnl subprocesses the usual way. But TIOCSIGNAL does work for PTYs,
dnl and this is all we need.
AC_DEFINE(XOS_NEEDS_TIME_H, 1, [Compensate for a bug in Xos.h on
some systems, where it requires time.h.])
;;
-
- netbsd | openbsd )
- dnl Greg A. Woods <woods@weird.com> says we must include signal.h
- dnl before syssignal.h is included, to work around interface conflicts
- dnl that are handled with CPP __RENAME() macro in signal.h.
- AC_DEFINE(SIGNAL_H_AHB, 1, [Define if AH_BOTTOM should include signal.h.])
- ;;
esac
AC_SUBST(GNU_OBJC_CFLAGS)
AC_SUBST(OTHER_FILES)
+if test -n "${term_header}"; then
+ AC_DEFINE_UNQUOTED(TERM_HEADER, "${term_header}",
+ [Define to the header for the built-in window system.])
+fi
+
AC_DEFINE_UNQUOTED(EMACS_CONFIGURATION, "${canonical}",
[Define to the canonical Emacs configuration name.])
AC_DEFINE_UNQUOTED(EMACS_CONFIG_OPTIONS, "${ac_configure_args}",
AC_DEFINE(HAVE_X_WINDOWS, 1,
[Define to 1 if you want to use the X window system.])
XMENU_OBJ=xmenu.o
- XOBJ="xterm.o xfns.o xselect.o xrdb.o fontset.o xsmfns.o fringe.o image.o xsettings.o xgselect.o"
+ XOBJ="xterm.o xfns.o xselect.o xrdb.o xsmfns.o xsettings.o xgselect.o"
FONT_OBJ=xfont.o
if test "$HAVE_XFT" = "yes"; then
FONT_OBJ="$FONT_OBJ ftfont.o xftfont.o ftxfont.o"
fi dnl if $GCC
AC_SUBST(LIB_GCC)
-
-## If we're using X11/GNUstep, define some consequences.
-if test "$HAVE_X_WINDOWS" = "yes" || test "$HAVE_NS" = "yes"; then
+## Common for all window systems
+if test "$window_system" != "none"; then
AC_DEFINE(HAVE_WINDOW_SYSTEM, 1, [Define if you have a window system.])
AC_DEFINE(HAVE_MOUSE, 1, [Define if you have mouse support.])
+ WINDOW_SYSTEM_OBJ="fontset.o fringe.o image.o"
fi
+AC_SUBST(WINDOW_SYSTEM_OBJ)
AH_TOP([/* GNU Emacs site configuration template file.
HCoop / bpt / emacs.git / blobdiff