diff options
Diffstat (limited to 'gdb/configure.ac')
| -rw-r--r-- | gdb/configure.ac | 95 |
1 files changed, 61 insertions, 34 deletions
diff --git a/gdb/configure.ac b/gdb/configure.ac index 677a6ae..054d5c2 100644 --- a/gdb/configure.ac +++ b/gdb/configure.ac @@ -429,20 +429,70 @@ AC_SEARCH_LIBS(socketpair, socket) # Link in zlib if we can. This allows us to read compressed debug sections. AC_SEARCH_LIBS(zlibVersion, z, [AC_CHECK_HEADERS(zlib.h)]) -# For the TUI, we need enhanced curses functionality. -# -# FIXME: kettenis/20040905: We prefer ncurses over the vendor-supplied -# curses library because the latter might not provide all the -# functionality we need. However, this leads to problems on systems -# where the linker searches /usr/local/lib, but the compiler doesn't -# search /usr/local/include, if ncurses is installed in /usr/local. A -# default installation of ncurses on alpha*-dec-osf* will lead to such -# a situation. -AC_SEARCH_LIBS(waddstr, [ncurses cursesX curses]) - # On HP/UX we may need libxpdl for dlgetmodinfo (used by solib-pa64.c). AC_SEARCH_LIBS(dlgetmodinfo, [dl xpdl]) +# On alpha-osf, it appears that libtermcap and libcurses are not compatible. +# There is a very specific comment in /usr/include/curses.h explaining that +# termcap routines built into libcurses must not be used. +# +# The symptoms we observed so far is GDB unexpectedly changing +# the terminal settings when tgetent is called - this is particularly +# visible as the output is missing carriage returns, and so rapidly +# becomes very hard to read. +# +# The readline configure script has already decided that libtermcap +# was enough for its purposes, and so decided to build readline using +# libtermcap. Since the TUI mode requires curses, building GDB with +# TUI enabled results in both libraries to be used at the same time, +# which is not allowed. This basically means that GDB with TUI is +# broken on alpha-osf. + +case $host_os in + alpha*-*-osf* ) + if "$enable_tui" = "yes"; then + AC_MSG_ERROR([Building GDB with TUI mode is not supported on this host]) + fi + if "$enable_tui" = "auto"; then + enable_tui=no + fi + ;; +esac + +# Check whether we should enable the TUI, but only do so if we really +# can. +if test x"$enable_tui" != xno; then + if test -d $srcdir/tui; then + # For the TUI, we need enhanced curses functionality. + # + # FIXME: kettenis/20040905: We prefer ncurses over the vendor-supplied + # curses library because the latter might not provide all the + # functionality we need. However, this leads to problems on systems + # where the linker searches /usr/local/lib, but the compiler doesn't + # search /usr/local/include, if ncurses is installed in /usr/local. A + # default installation of ncurses on alpha*-dec-osf* will lead to such + # a situation. + AC_SEARCH_LIBS(waddstr, [ncurses cursesX curses]) + + if test "$ac_cv_search_waddstr" != no; then + CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_TUI_OBS)" + CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_TUI_DEPS)" + CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_TUI_SRCS)" + ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_TUI_CFLAGS)" + CONFIG_ALL="${CONFIG_ALL} all-tui" + CONFIG_CLEAN="${CONFIG_CLEAN} clean-tui" + CONFIG_INSTALL="${CONFIG_INSTALL} install-tui" + CONFIG_UNINSTALL="${CONFIG_UNINSTALL} uninstall-tui" + else + if test x"$enable_tui" = xyes; then + AC_MSG_ERROR([no enhanced curses library found; disable TUI]) + else + AC_MSG_WARN([no enhanced curses library found; disabling TUI]) + fi + fi + fi +fi + # Since GDB uses Readline, we need termcap functionality. In many # cases this will be provided by the curses library, but some systems # have a seperate termcap library, or no curses library at all. @@ -1748,29 +1798,6 @@ AC_SUBST(GDBTK_SRC_DIR) AC_PATH_X -# Check whether we should enable the TUI, but only do so if we really -# can. -if test x"$enable_tui" != xno; then - if test -d $srcdir/tui; then - if test "$ac_cv_search_waddstr" != no; then - CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_TUI_OBS)" - CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_TUI_DEPS)" - CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_TUI_SRCS)" - ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_TUI_CFLAGS)" - CONFIG_ALL="${CONFIG_ALL} all-tui" - CONFIG_CLEAN="${CONFIG_CLEAN} clean-tui" - CONFIG_INSTALL="${CONFIG_INSTALL} install-tui" - CONFIG_UNINSTALL="${CONFIG_UNINSTALL} uninstall-tui" - else - if test x"$enable_tui" = xyes; then - AC_MSG_ERROR([no enhanced curses library found; disable TUI]) - else - AC_MSG_WARN([no enhanced curses library found; disabling TUI]) - fi - fi - fi -fi - # Unlike the sim directory, whether a simulator is linked is controlled by # presence of a gdb_sim definition in the target configure.tgt entry. # This code just checks for a few cases where we'd like to ignore those |