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Restructure with-screen ncurses m4 logic

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Search order:
1) system path   (adjust by --with-ncurses-libdir=<DIR>, --with-ncurses-includedir=<DIR>)
2) pkg-config    (adjust by NCURSES_LIBS, NCURSES_CFLAGS)

Preference:
ncursesw > ncurses

more document at source code

Signed-off-by: Andreas Mohr <and@gmx.li>
Signed-off-by: Andrew Borodin <aborodin@vmail.ru>
This commit is contained in:
Andreas Mohr 2016-04-10 15:51:58 +00:00 committed by Andrew Borodin
parent 8d62147883
commit 71db61b9df
1 changed files with 105 additions and 194 deletions
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299
m4.include/mc-with-screen-ncurses.m4
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@ -1,214 +1,125 @@
dnl check for ncurses in user supplied path
AC_DEFUN([mc_CHECK_NCURSES_BY_PATH], [
ac_ncurses_inc_path=[$1]
ac_ncurses_lib_path=[$2]
if test x"$ac_ncurses_inc_path" != x; then
ac_ncurses_inc_path="-I"$ac_ncurses_inc_path
fi
if test x"$ac_ncurses_lib_path" != x; then
ac_ncurses_lib_path="-L"$ac_ncurses_lib_path
fi
saved_CPPFLAGS="$CPPFLAGS"
saved_LDFLAGS="$LDFLAGS"
CPPFLAGS="$CPPFLAGS $ac_ncurses_inc_path"
LDFLAGS="$LDFLAGS $ac_ncurses_lib_path"
dnl Check for the headers
dnl Both headers should be in the same directory
dnl AIX term.h is unusable for mc
AC_MSG_CHECKING([for ncurses/ncurses.h and ncurses/term.h])
AC_PREPROC_IFELSE(
[
AC_LANG_PROGRAM([[#include <ncurses/ncurses.h>
#include <ncurses/term.h>
]],[[return 0;]])
],
[
AC_MSG_RESULT(yes)
if test x"$ac_ncurses_inc_path" = x; then
ac_ncurses_inc_path="-I/usr/include"
fi
if test x"$ac_ncurses_lib_path" = x; then
ac_ncurses_lib_path="-L/usr/lib"
fi
found_ncurses=yes
AC_DEFINE(HAVE_NCURSES_NCURSES_H, 1,
[Define to 1 if you have the <ncurses/ncurses.h> header file.])
AC_DEFINE(HAVE_NCURSES_TERM_H, 1,
[Define to 1 if you have the <ncurses/term.h> header file.])
],
[
AC_MSG_RESULT(no)
found_ncurses=no
error_msg_ncurses="ncurses header not found"
],
)
if test x"$found_ncurses" = x"yes"; then
screen_type=ncurses
screen_msg="NCurses"
AC_DEFINE(HAVE_NCURSES, 1,
[Define to use ncurses library for screen management])
MCLIBS="$MCLIBS $ac_ncurses_lib_path"
else
CPPFLAGS="$saved_CPPFLAGS"
LDFLAGS="$saved_LDPFLAGS"
AC_MSG_ERROR([$error_msg_ncurses])
fi
])
dnl dnl
dnl Use the ncurses library. It can only be requested explicitly, dnl Use the NCurses library. It can only be requested explicitly,
dnl so just fail if anything goes wrong. dnl so just fail if anything goes wrong.
dnl dnl
dnl If ncurses exports the ESCDELAY variable it should be set to 0 dnl Search order:
dnl or you'll have to press Esc three times to dismiss a dialog box. dnl 1) system path (adjust by --with-ncurses-libdir=<DIR>, --with-ncurses-includedir=<DIR>)
dnl 2) pkg-config (adjust by NCURSES_LIBS, NCURSES_CFLAGS)
dnl dnl
dnl Preference:
dnl ncursesw > ncurses
dnl
dnl Rules:
dnl LIBS can be prepended
dnl CFLAGS can be appended (compiler optimizations and directives look at the last options)
dnl CPPFLAGS can be prepended (header search paths options look at the first path)
dnl
AC_DEFUN([mc_WITH_NCURSES], [ AC_DEFUN([mc_WITH_NCURSES], [
dnl has_colors() is specific to ncurses, it's not in the old curses
save_LIBS="$LIBS" save_LIBS="$LIBS"
ncursesw_found= save_CFLAGS="$CFLAGS"
save_CPPFLAGS="$CPPFLAGS"
save_MCLIBS="$MCLIBS"
dnl get the user supplied include path AC_MSG_CHECKING([for specific NCurses libdir])
AC_ARG_WITH([ncurses-includes], AC_ARG_WITH([ncurses-libdir],
AS_HELP_STRING([--with-ncurses-includes=@<:@DIR@:>@], [AS_HELP_STRING([--with-ncurses-libdir=@<:@DIR@:>@], [Path to NCurses library files])],
[set path to ncurses includes @<:@default=/usr/include@:>@; make sense only if --with-screen=ncurses; for /usr/local/include/ncurses specify /usr/local/include] [AS_IF([test ! -d "$withval"], [AC_MSG_ERROR([NCurses libdir path "$withval" not found])])
), LIBS="-L$withval $LIBS"
[ac_ncurses_inc_path="$withval"], LDFLAGS="-L$withval $LIBS"
[ac_ncurses_inc_path=""] MCLIBS="-L$withval $MCLIBS"],
) [with_ncurses_libdir=no])
AC_MSG_RESULT([$with_ncurses_libdir])
dnl get the user supplied lib path AC_MSG_CHECKING([for specific NCurses includedir])
AC_ARG_WITH([ncurses-libs], AC_ARG_WITH([ncurses-includedir],
AS_HELP_STRING([--with-ncurses-libs=@<:@DIR@:>@], [AS_HELP_STRING([--with-ncurses-includedir=@<:@DIR@:>@], [Path to NCurses header files])],
[set path to ncurses library @<:@default=/usr/lib@:>@; make sense only if --with-screen=ncurses] [AS_IF([test ! -d "$withval"], [AC_MSG_ERROR([NCurses includedir path "$withval" not found])])
), CFLAGS="$save_CFLAGS -I$withval"],
[ac_ncurses_lib_path="$withval"], [with_ncurses_includedir=no])
[ac_ncurses_lib_path=""] AC_MSG_RESULT([$with_ncurses_includedir])
)
dnl we need at least the inc path, the lib may be in a std location dnl
if test x"$ac_ncurses_inc_path" != x; then dnl Check ncurses library
dnl check the user supplied location dnl
mc_CHECK_NCURSES_BY_PATH([$ac_ncurses_inc_path],[$ac_ncurses_lib_path]) dnl has_colors is specific to ncurses, it's not in the old curses
dnl search in default linker path and LDFLAGS -L options
AC_SEARCH_LIBS([has_colors], [ncursesw ncurses],
[AS_CASE(["$ac_cv_search_has_colors"],
["-lncursesw"], [screen_msg="NCursesw"],
["-lncurses"], [screen_msg="NCurses"],
["none required"], [screen_msg="NCurses static"], dnl or system native? Who knows
[AC_MSG_ERROR([Unknown ac_cv_search_has_colors option "$ac_cv_search_has_colors"])])
],
dnl 2. Library not found by system path, try pkg-config
[PKG_CHECK_MODULES([NCURSES], [ncursesw],
[ LIBS="$NCURSES_LIBS $save_LIBS"
MCLIBS="$NCURSES_LIBS $save_MCLIBS"
CFLAGS="$save_CFLAGS $NCURSES_CFLAGS"
screen_msg="NCursesw"
AC_CHECK_FUNC([has_colors], [], dnl Always validate pkg-config result
[AC_MSG_ERROR([NCursesw pkg-config insufficient])])
],
[PKG_CHECK_MODULES([NCURSES], [ncurses],
[ LIBS="$NCURSES_LIBS $save_LIBS"
MCLIBS="$NCURSES_LIBS $save_MCLIBS"
CFLAGS="$save_CFLAGS $NCURSES_CFLAGS"
screen_msg="NCurses"
AC_CHECK_FUNC([has_colors], [], dnl Always validate pkg-config result
[AC_MSG_ERROR([NCurses pkg-config insufficient])])
],
[AC_MSG_ERROR([(N)Curses(w) library not found by system path neither pkg-config])])
])
])
LIBS="$MCLIBS" AC_SEARCH_LIBS([stdscr], [tinfow tinfo], [],
AC_SEARCH_LIBS([has_colors], [ncurses], [], dnl 2. Library not found by system path, try pkg-config
[AC_MSG_ERROR([Cannot find ncurses library])]) [PKG_CHECK_MODULES([TINFOW], [tinfow], [],
AC_SEARCH_LIBS([stdscr], [tinfo], [], [AC_CHECK_FUNC([stdscr], [], dnl Always validate pkg-config result
[AC_MSG_ERROR([Cannot find a library providing stdscr])]) [AC_MSG_ERROR([Tinfow pkg-config insufficient])])],
MCLIBS="$LIBS" [PKG_CHECK_MODULES([TINFO], [tinfo],
[AC_CHECK_FUNC([stdscr], [], dnl Always validate pkg-config result
[AC_MSG_ERROR([Tinfo pkg-config insufficient])])],
[AC_MSG_ERROR([Tinfo(w) library not found by system path neither pkg-config])])
])
])
screen_type=ncurses AC_CHECK_FUNC([addwstr], [],
screen_msg="NCurses" [AC_MSG_WARN([NCurses(w) library found without wide characters support])])
AC_DEFINE(USE_NCURSES, 1,
[Define to use ncurses for screen management])
else
LIBS="$MCLIBS"
AC_SEARCH_LIBS([addwstr], [ncursesw ncurses curses], [ncursesw_found=yes],
[AC_MSG_WARN([Cannot find ncurses library, that support wide characters])])
MCLIBS="$LIBS"
if test x"$ncursesw_found" = "x"; then dnl
LIBS="$MCLIBS" dnl Check ncurses header
AC_SEARCH_LIBS([has_colors], [ncurses curses], [], dnl
[AC_MSG_ERROR([Cannot find ncurses library])]) dnl Set CPPFLAGS to avoid AC_CHECK_HEADERS warning "accepted by the compiler, rejected by the preprocessor!"
MCLIBS="$LIBS" CPPFLAGS="$CFLAGS"
fi dnl first match wins, using break
LIBS="$MCLIBS" AC_CHECK_HEADERS([ncursesw/ncurses.h ncursesw/curses.h ncurses/ncurses.h ncurses/curses.h ncurses.h curses.h],
AC_SEARCH_LIBS([stdscr], [tinfow tinfo], [], [ncurses_h_found=yes; break],
[AC_MSG_ERROR([Cannot find a library providing stdscr])]) [ncurses_h_found=no])
MCLIBS="$LIBS"
dnl Check the header AS_IF([test x"$ncurses_h_found" != xyes],
ncurses_h_found= [AC_MSG_ERROR([NCurses(w) header file not found])])
AC_CHECK_HEADERS([ncursesw/curses.h ncurses/curses.h ncurses.h curses.h],
[ncurses_h_found=yes; break])
if test x"$ncurses_h_found" = "x"; then AC_CHECK_HEADERS([ncursesw/term.h ncurses/term.h term.h],
AC_MSG_ERROR([Cannot find ncurses header file]) [ncurses_term_h_found=yes; break],
fi [ncurses_term_h_found=no])
AC_CHECK_HEADERS([ncurses/term.h]) AS_IF([test x"$ncurses_term_h_found" != xyes],
[AC_MSG_ERROR([NCurses(w) term.h header file not found])])
screen_type=ncurses dnl If ncurses exports the ESCDELAY variable it should be set to 0
screen_msg="NCurses" dnl or you'll have to press Esc three times to dismiss a dialog box.
AC_DEFINE(USE_NCURSES, 1, AC_CACHE_CHECK([for ESCDELAY variable], [mc_cv_ncurses_escdelay],
[Define to use ncurses for screen management]) [AC_LINK_IFELSE(
fi [AC_LANG_PROGRAM([[extern int ESCDELAY;]],[[ESCDELAY = 0;]])],
[mc_cv_ncurses_escdelay=yes], [mc_cv_ncurses_escdelay=no])
])
dnl check for ESCDELAY AS_IF([test x"$mc_cv_ncurses_escdelay" = xyes],
AC_CACHE_CHECK([for ESCDELAY variable], [AC_DEFINE([HAVE_ESCDELAY], [1], [Define if NCurses(w) has ESCDELAY variable])])
[mc_cv_ncurses_escdelay],
[AC_LINK_IFELSE([AC_LANG_PROGRAM([], [[
extern int ESCDELAY;
ESCDELAY = 0;
]])],
[mc_cv_ncurses_escdelay=yes],
[mc_cv_ncurses_escdelay=no])
])
if test x"$mc_cv_ncurses_escdelay" = xyes; then
AC_DEFINE(HAVE_ESCDELAY, 1,
[Define if ncurses has ESCDELAY variable])
fi
dnl check for resizeterm
AC_CHECK_FUNCS(resizeterm)
LIBS="$save_LIBS"
])
dnl
dnl Use the ncursesw library. It can only be requested explicitly,
dnl so just fail if anything goes wrong.
dnl
dnl If ncursesw exports the ESCDELAY variable it should be set to 0
dnl or you'll have to press Esc three times to dismiss a dialog box.
dnl
AC_DEFUN([mc_WITH_NCURSESW], [
dnl has_colors() is specific to ncurses, it's not in the old curses
save_LIBS="$LIBS"
LIBS=
AC_SEARCH_LIBS([has_colors], [ncursesw], [MCLIBS="$MCLIBS $LIBS"],
[AC_MSG_ERROR([Cannot find ncursesw library])])
AC_SEARCH_LIBS([stdscr], [tinfow ncursesw], [MCLIBS="$MCLIBS $LIBS"],
[AC_MSG_ERROR([Cannot find a library providing stdscr])])
dnl Check the header
ncurses_h_found=
AC_CHECK_HEADERS([ncursesw/curses.h],
[ncursesw_h_found=yes; break])
if test x"$ncursesw_h_found" = "x"; then
AC_MSG_ERROR([Cannot find ncursesw header file])
fi
screen_type=ncursesw
screen_msg="NCursesw"
AC_DEFINE(USE_NCURSESW, 1,
[Define to use ncursesw for screen management])
AC_CACHE_CHECK([for ESCDELAY variable],
[mc_cv_ncursesw_escdelay],
[AC_LINK_IFELSE([AC_LANG_PROGRAM([], [[
extern int ESCDELAY;
ESCDELAY = 0;
]])],
[mc_cv_ncursesw_escdelay=yes],
[mc_cv_ncursesw_escdelay=no])
])
if test x"$mc_cv_ncursesw_escdelay" = xyes; then
AC_DEFINE(HAVE_ESCDELAY, 1,
[Define if ncursesw has ESCDELAY variable])
fi
AC_CHECK_FUNCS(resizeterm) AC_CHECK_FUNCS(resizeterm)
LIBS="$save_LIBS"
AC_DEFINE([HAVE_NCURSES], [1], [Define to use NCurses for screen management])
AC_DEFINE_UNQUOTED([NCURSES_LIB_DISPLAYNAME], ["$screen_msg"], [Define NCurses library display name])
]) ])