patches for AIX with ncurses support

Signed-off-by: Slava Zanko <slavazanko@gmail.com>

doc/INSTALL

@@ -224,11 +224,28 @@ ncurses):
      by default if found, otherwise the included S-Lang library is
      used.
 
+`--with-slang-includes=[DIR]'
+     Set path to SLANG includes [default=/usr/include]; make sense
+     only if --with-screen=slang is used.
+
+`--with-slang-libs=[DIR]'
+     Set path to SLANG library [default=/usr/lib]; mke sense only
+     if --with-screen=slang is used.
+
 `--with-termcap'
      If the included S-Lang library is used, this option forces it to
      use the termcap database, as opposed to the default terminfo
      database.
 
+`--with-ncurses-includes=[DIR]'
+     Set path to ncurses includes [default=/usr/include]; make
+     sense only if --with-screen=ncurses is used;
+     for /usr/local/include/ncurses specify /usr/local/include.
+
+`--with-ncurses-libs=[DIR]'
+     Set path to ncurses library [default=/usr/lib]; make sense
+     only if --with-screen=ncurses is used.
+
 Compiler options:
 - - - - - - - - -
 
@@ -320,7 +337,7 @@ mips-dec-ultrix4.3
 mips-dec-{open,net}bsd1.0
 mips-sgi-irix5.2
 mips-sgi-irix5.3
-rs6000-ibm-aix3.2.5
+powerpc-ibm-aix5.3.0.0 (IBM XL C, IBM XL C/C++)
 sparc-sun-sunos4.1
 sparc-sun-netbsd1.0
 sparc-sun-solaris2.3
@@ -435,3 +452,33 @@ team.  Sometimes there is no solution than upgrading to a modern and
 free compiler - GCC (Compiler Collection):
 
 http://gcc.gnu.org/
+
+AIX
+---
+Currently you can not use gcc 4.2.4 (and probably other versions) on
+AIX to compiler the S-Lang version. Please use IBM XL C or IBM XL C/C++
+instead.
+
+If you compile a ncurses version you need to set TERM=dtterm to get
+working color support. Furthermore it is important to specify the
+--with-ncurses-includes/--with-ncurses-lib parameters because otherwise
+mc will pick up term.h from AIX which does not work with the ncurses
+library.
+
+The AIX S-Lang build was tested with S-Lang 2.0.7. Later versions may
+also work but are not tested yet.
+
+Here is an example for S-Lang, it is assumed that the S-Lang library
+is installed under /user/local and that you also want want to install
+to /usr/local:
+
+  export CC=cc_r
+  export CXX=xlC_r
+  export CONFIG_SHELL=/usr/bin/bash (if installed)
+  export SHELL=/usr/bin/bash        (if installed)
+
+  ./configure \
+     --prefix=/usr/local \
+     --with-screen=slang \
+     --with-slang-includes=/usr/local/include \
+     --with-slang-libs=/usr/local/lib

lib/tty/tty-ncurses.c

@@ -52,12 +52,19 @@
 
 /* include at last !!! */
 #ifdef WANT_TERM_H
+#ifdef HAVE_NCURSES_TERM_H
+#   include <ncurses/term.h>
+#else
 #   include <term.h>
+#endif /* HAVE_NCURSES_TERM_H */
 #endif /* WANT_TERM_H */
 
 /*** global variables **************************************************/
 
 /*** file scope macro definitions **************************************/
+#if defined(_AIX) && !defined(CTRL)
+#   define CTRL(x) ((x) & 0x1f)
+#endif
 
 /*** global variables **************************************************/
 

lib/tty/tty-ncurses.h

@@ -5,8 +5,12 @@
 #ifdef USE_NCURSES
 #    ifdef HAVE_NCURSES_CURSES_H
 #        include <ncurses/curses.h>
+#    elif HAVE_NCURSES_NCURSES_H
+#        include <ncurses/ncurses.h>
 #    elif HAVE_NCURSESW_CURSES_H
 #        include <ncursesw/curses.h>
+#    elif HAVE_NCURSES_HCURSES_H
+#        include <ncurses.h>
 #    elif HAVE_NCURSES_H
 #        include <ncurses.h>
 #    else

lib/unixcompat.h

@@ -20,6 +20,10 @@
 # include <sys/sysmacros.h>	/* AIX */
 #endif
 
+#if defined(_AIX)
+# include <time.h>		/* AIX for tm */
+#endif
+
 #ifndef major
 # warning major() is undefined. Device numbers will not be shown correctly.
 # define major(devnum) (((devnum) >> 8) & 0xff)

lib/vfs/mc-vfs/direntry.c

@@ -31,7 +31,8 @@
 #include <config.h>
 
 #include <errno.h>
-#include <sys/fcntl.h>
+#include <fcntl.h>		/* include fcntl.h -> sys/fcntl.h only       */
+				/* includes fcntl.h see IEEE Std 1003.1-2008 */
 #include <time.h>
 #include <sys/time.h>		/* gettimeofday() */
 

lib/vfs/mc-vfs/vfs.c

@@ -67,6 +67,10 @@
 #include "smbfs.h"
 #include "local.h"
 
+#if defined(_AIX) && !defined(NAME_MAX)
+#  define NAME_MAX FILENAME_MAX
+#endif
+
 /** They keep track of the current directory */
 static struct vfs_class *current_vfs;
 static char *current_dir;

m4.include/mc-cflags.m4

@@ -37,8 +37,15 @@ AC_DEFUN([MC_CHECK_CFLAGS],[
     mc_configured_cflags=""
 
 dnl Sorted -f options:
+dnl AC_MSG_CHECKING([CC is $CC])
+case "$CC" in
+  gcc*)
     MC_CHECK_ONE_CFLAG([-fdiagnostics-show-option])
 dnl    MC_CHECK_ONE_CFLAG([-fno-stack-protector])
+    ;;
+  *)
+    ;;
+esac
 
 dnl Sorted -W options:
     MC_CHECK_ONE_CFLAG([-Wcomment])

m4.include/mc-with-screen.m4

@@ -1,6 +1,6 @@
 dnl
 dnl Check if the system S-Lang library can be used.
-dnl If not, and $1 is "strict", exit, otherwise fall back to mcslang.
+dnl If not, and $1 is "strict", exit.
 dnl
 AC_DEFUN([MC_CHECK_SLANG_BY_PATH], [
 
@@ -146,10 +146,15 @@ int main (void)
             [Define to use S-Lang library for screen management])
 
         MCLIBS="$MCLIBS $ac_slang_lib_path -lslang"
-    fi
+        CFLAGS="$saved_CFLAGS"
+        dnl do not reset CPPFLAGS
+        dnl - if CPPFLAGS are resetted then cpp does not find the specified header
+        LDFLAGS="$saved_LDFLAGS"
+    else
         CFLAGS="$saved_CFLAGS"
         CPPFLAGS="$saved_CPPFLAGS"
         LDFLAGS="$saved_LDFLAGS"
+    fi
 ])
 
 dnl
@@ -162,7 +167,7 @@ AC_DEFUN([MC_WITH_SLANG], [
 
     AC_ARG_WITH([slang-includes],
         AC_HELP_STRING([--with-slang-includes=@<:@DIR@:>@],
-            [set path to SLANG includes @<:@default=/usr/include@:>@; may sense only if --with-screen=slang]
+            [set path to SLANG includes @<:@default=/usr/include@:>@; make sense only if --with-screen=slang]
         ),
         [ac_slang_inc_path="$withval"],
         [ac_slang_inc_path=""]
@@ -170,7 +175,7 @@ AC_DEFUN([MC_WITH_SLANG], [
 
     AC_ARG_WITH([slang-libs],
         AC_HELP_STRING([--with-slang-libs=@<:@DIR@:>@],
-            [set path to SLANG library @<:@default=/usr/lib@:>@; may sense only if --with-screen=slang]
+            [set path to SLANG library @<:@default=/usr/lib@:>@; make sense only if --with-screen=slang]
         ),
         [ac_slang_lib_path="$withval"],
         [ac_slang_lib_path=""]
@@ -197,6 +202,68 @@ AC_DEFUN([MC_WITH_SLANG], [
 
 ])
 
+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"
+    CPPFLAGS="$CPPFLAGS $ac_ncurses_inc_path"
+
+    dnl Check for the headers
+    dnl Both headers should be in the same directory
+    dnl AIX term.h is unusable for mc
+    AC_MSG_CHECKING([for ncurses/ncurses.h and ncurses/term.h])
+    AC_PREPROC_IFELSE(
+        [
+            AC_LANG_PROGRAM([[#include <ncurses/ncurses.h>
+                              #include <ncurses/term.h>
+                            ]],[[return 0;]])
+        ],
+        [
+            AC_MSG_RESULT(yes)
+            if test x"$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 library (installed on the system)"
+
+        AC_DEFINE(HAVE_NCURSES, 1,
+                  [Define to use ncurses library for screen management])
+
+        MCLIBS="$MCLIBS $ac_ncurses_lib_path"
+    else
+        CPPFLAGS="$saved_CPPFLAGS"
+        AC_MSG_ERROR([$error_msg_ncurses])
+    fi
+])
+
 dnl
 dnl Use the ncurses library.  It can only be requested explicitly,
 dnl so just fail if anything goes wrong.
@@ -208,6 +275,39 @@ AC_DEFUN([MC_WITH_NCURSES], [
     dnl has_colors() is specific to ncurses, it's not in the old curses
     save_LIBS="$LIBS"
     ncursesw_found=
+
+    dnl get the user supplied include path
+    AC_ARG_WITH([ncurses-includes],
+        AC_HELP_STRING([--with-ncurses-includes=@<:@DIR@:>@],
+            [set path to ncurses includes @<:@default=/usr/include@:>@; make sense only if --with-screen=ncurses; for /usr/local/include/ncurses specify /usr/local/include]
+        ),
+        [ac_ncurses_inc_path="$withval"],
+        [ac_ncurses_inc_path=""]
+    )
+
+    dnl get the user supplied lib path
+    AC_ARG_WITH([ncurses-libs],
+        AC_HELP_STRING([--with-ncurses-libs=@<:@DIR@:>@],
+            [set path to ncurses library @<:@default=/usr/lib@:>@; make sense only if --with-screen=ncurses]
+        ),
+        [ac_ncurses_lib_path="$withval"],
+        [ac_ncurses_lib_path=""]
+    )
+
+    dnl we need at least the inc path, the lib may be in a std location
+    if test x"$ac_ncurses_inc_path" != x; then
+        dnl check the user supplied location
+        MC_CHECK_NCURSES_BY_PATH([$ac_ncurses_inc_path],[$ac_ncurses_lib_path])
+
+        LIBS=
+        AC_SEARCH_LIBS([has_colors], [ncurses], [MCLIBS="$MCLIBS $LIBS"], 
+                       [AC_MSG_ERROR([Cannot find ncurses library])])
+
+        screen_type=ncurses
+        screen_msg="ncurses library"
+        AC_DEFINE(USE_NCURSES, 1, 
+                  [Define to use ncurses for screen management])
+    else
         LIBS=
         AC_SEARCH_LIBS([addwstr], [ncursesw ncurses curses], [MCLIBS="$MCLIBS $LIBS";ncursesw_found=yes],
                        [AC_MSG_WARN([Cannot find ncurses library, that support wide characters])])
@@ -231,7 +331,9 @@ AC_DEFUN([MC_WITH_NCURSES], [
         screen_msg="ncurses library"
         AC_DEFINE(USE_NCURSES, 1, 
                   [Define to use ncurses for screen management])
+    fi
 
+    dnl check for ESCDELAY
     AC_CACHE_CHECK([for ESCDELAY variable],
                    [mc_cv_ncurses_escdelay],
                    [AC_TRY_LINK([], [
@@ -246,6 +348,7 @@ AC_DEFUN([MC_WITH_NCURSES], [
                   [Define if ncurses has ESCDELAY variable])
     fi
 
+    dnl check for resizeterm
     AC_CHECK_FUNCS(resizeterm)
     LIBS="$save_LIBS"
 ])