Remove all checking for the various terminfo headers (term.h and

curses.h). Finding these headers is next to impossible. For example, on
Debian systems libtinfo-dev provides the terminfo reading library we
want, but *not* term.h. For the header, you have to use libncurses-dev.
And libncursesw-dev provides a *different* term.h in a different
location!

These headers aren't worth it. We want two functions the signatures of
which are clearly spec'ed in sys-v and other documentation. Just declare
them ourselves and call them. This should fix some debian builders and
provide better support for "minimal" debian systems that do want color
autodetection.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188165 91177308-0d34-0410-b5e6-96231b3b80d8

6 files changed, 11 insertions, 252 deletions

diff --git a/autoconf/configure.ac b/autoconf/configure.ac
index 127eb6fd49..ceb0b9a4a0 100644
--- a/autoconf/configure.ac
+++ b/autoconf/configure.ac
@@ -1573,11 +1573,6 @@ else
   AC_SUBST(HAVE_LIBZ, 0)
 fi
 
-dnl Try to find a suitable curses header.
-if test "$llvm_cv_enable_terminfo" = "yes" ; then
-  AC_CHECK_HEADERS([term.h curses.h ncurses.h ncursesw.h ncurses/curses.h ncursesw/curses.h])
-fi
-
 dnl Try to find ffi.h.
 if test "$llvm_cv_enable_libffi" = "yes" ; then
   AC_CHECK_HEADERS([ffi.h ffi/ffi.h])
diff --git a/cmake/config-ix.cmake b/cmake/config-ix.cmake
index 13bd40dce1..9162caf3c9 100755
--- a/cmake/config-ix.cmake
+++ b/cmake/config-ix.cmake
@@ -74,13 +74,6 @@ check_symbol_exists(FE_INEXACT "fenv.h" HAVE_DECL_FE_INEXACT)
 check_include_file(mach/mach.h HAVE_MACH_MACH_H)
 check_include_file(mach-o/dyld.h HAVE_MACH_O_DYLD_H)
 
-check_include_file(term.h HAVE_TERM_H)
-check_include_file(curses.h HAVE_CURSES_H)
-check_include_file(ncurses.h HAVE_NCURSES_H)
-check_include_file(ncursesw.h HAVE_NCURSESW_H)
-check_include_file(ncurses/curses.h HAVE_NCURSES_CURSES_H)
-check_include_file(ncursesw/curses.h HAVE_NCURSESW_CURSES_H)
-
 # library checks
 if( NOT PURE_WINDOWS )
   check_library_exists(pthread pthread_create "" HAVE_LIBPTHREAD)
@@ -104,9 +97,7 @@ if( NOT PURE_WINDOWS )
   else()
     set(HAVE_LIBZ 0)
   endif()
-  if(LLVM_ENABLE_TERMINFO AND
-     (HAVE_TERM_H OR HAVE_CURSES_H OR HAVE_NCURSES_H OR HAVE_NCURSESW_H OR
-      HAVE_NCURSES_CURSES_H OR HAVE_NCURSESW_CURSES_H))
+  if(LLVM_ENABLE_TERMINFO)
     set(HAVE_TERMINFO 0)
     foreach(library tinfo curses ncurses ncursesw)
       string(TOUPPER ${library} library_suffix)
diff --git a/configure b/configure
index 2bf62483a3..939822e4d2 100755
--- a/configure
+++ b/configure
@@ -16543,183 +16543,6 @@ else
 
 fi
 
-if test "$llvm_cv_enable_terminfo" = "yes" ; then
-
-
-
-
-
-
-for ac_header in term.h curses.h ncurses.h ncursesw.h ncurses/curses.h ncursesw/curses.h
-do
-as_ac_Header=`echo "ac_cv_header_$ac_header" | $as_tr_sh`
-if { as_var=$as_ac_Header; eval "test \"\${$as_var+set}\" = set"; }; then
-  { echo "$as_me:$LINENO: checking for $ac_header" >&5
-echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6; }
-if { as_var=$as_ac_Header; eval "test \"\${$as_var+set}\" = set"; }; then
-  echo $ECHO_N "(cached) $ECHO_C" >&6
-fi
-ac_res=`eval echo '${'$as_ac_Header'}'`
-	       { echo "$as_me:$LINENO: result: $ac_res" >&5
-echo "${ECHO_T}$ac_res" >&6; }
-else
-  # Is the header compilable?
-{ echo "$as_me:$LINENO: checking $ac_header usability" >&5
-echo $ECHO_N "checking $ac_header usability... $ECHO_C" >&6; }
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h.  */
-$ac_includes_default
-#include <$ac_header>
-_ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } &&
-	 { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
-  { (case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
-  (eval "$ac_try") 2>&5
-  ac_status=$?
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; } &&
-	 { ac_try='test -s conftest.$ac_objext'
-  { (case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
-  (eval "$ac_try") 2>&5
-  ac_status=$?
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; }; then
-  ac_header_compiler=yes
-else
-  echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	ac_header_compiler=no
-fi
-
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-{ echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
-echo "${ECHO_T}$ac_header_compiler" >&6; }
-
-# Is the header present?
-{ echo "$as_me:$LINENO: checking $ac_header presence" >&5
-echo $ECHO_N "checking $ac_header presence... $ECHO_C" >&6; }
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h.  */
-#include <$ac_header>
-_ACEOF
-if { (ac_try="$ac_cpp conftest.$ac_ext"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
-  (eval "$ac_cpp conftest.$ac_ext") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } >/dev/null; then
-  if test -s conftest.err; then
-    ac_cpp_err=$ac_c_preproc_warn_flag
-    ac_cpp_err=$ac_cpp_err$ac_c_werror_flag
-  else
-    ac_cpp_err=
-  fi
-else
-  ac_cpp_err=yes
-fi
-if test -z "$ac_cpp_err"; then
-  ac_header_preproc=yes
-else
-  echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-  ac_header_preproc=no
-fi
-
-rm -f conftest.err conftest.$ac_ext
-{ echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
-echo "${ECHO_T}$ac_header_preproc" >&6; }
-
-# So?  What about this header?
-case $ac_header_compiler:$ac_header_preproc:$ac_c_preproc_warn_flag in
-  yes:no: )
-    { echo "$as_me:$LINENO: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&5
-echo "$as_me: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&2;}
-    { echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the compiler's result" >&5
-echo "$as_me: WARNING: $ac_header: proceeding with the compiler's result" >&2;}
-    ac_header_preproc=yes
-    ;;
-  no:yes:* )
-    { echo "$as_me:$LINENO: WARNING: $ac_header: present but cannot be compiled" >&5
-echo "$as_me: WARNING: $ac_header: present but cannot be compiled" >&2;}
-    { echo "$as_me:$LINENO: WARNING: $ac_header:     check for missing prerequisite headers?" >&5
-echo "$as_me: WARNING: $ac_header:     check for missing prerequisite headers?" >&2;}
-    { echo "$as_me:$LINENO: WARNING: $ac_header: see the Autoconf documentation" >&5
-echo "$as_me: WARNING: $ac_header: see the Autoconf documentation" >&2;}
-    { echo "$as_me:$LINENO: WARNING: $ac_header:     section \"Present But Cannot Be Compiled\"" >&5
-echo "$as_me: WARNING: $ac_header:     section \"Present But Cannot Be Compiled\"" >&2;}
-    { echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the preprocessor's result" >&5
-echo "$as_me: WARNING: $ac_header: proceeding with the preprocessor's result" >&2;}
-    { echo "$as_me:$LINENO: WARNING: $ac_header: in the future, the compiler will take precedence" >&5
-echo "$as_me: WARNING: $ac_header: in the future, the compiler will take precedence" >&2;}
-    ( cat <<\_ASBOX
-## ------------------------------------ ##
-## Report this to http://llvm.org/bugs/ ##
-## ------------------------------------ ##
-_ASBOX
-     ) | sed "s/^/$as_me: WARNING:     /" >&2
-    ;;
-esac
-{ echo "$as_me:$LINENO: checking for $ac_header" >&5
-echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6; }
-if { as_var=$as_ac_Header; eval "test \"\${$as_var+set}\" = set"; }; then
-  echo $ECHO_N "(cached) $ECHO_C" >&6
-else
-  eval "$as_ac_Header=\$ac_header_preproc"
-fi
-ac_res=`eval echo '${'$as_ac_Header'}'`
-	       { echo "$as_me:$LINENO: result: $ac_res" >&5
-echo "${ECHO_T}$ac_res" >&6; }
-
-fi
-if test `eval echo '${'$as_ac_Header'}'` = yes; then
-  cat >>confdefs.h <<_ACEOF
-#define `echo "HAVE_$ac_header" | $as_tr_cpp` 1
-_ACEOF
-
-fi
-
-done
-
-fi
-
 if test "$llvm_cv_enable_libffi" = "yes" ; then
 
 
diff --git a/include/llvm/Config/config.h.cmake b/include/llvm/Config/config.h.cmake
index 5090a65ff4..572fb6f58a 100644
--- a/include/llvm/Config/config.h.cmake
+++ b/include/llvm/Config/config.h.cmake
@@ -48,9 +48,6 @@
 /* Define to 1 if you have the `closedir' function. */
 #cmakedefine HAVE_CLOSEDIR ${HAVE_CLOSEDIR}
 
-/* Define to 1 if you have the <curses.h> header file. */
-#cmakedefine HAVE_CURSES_H
-
 /* Define to 1 if you have the <cxxabi.h> header file. */
 #cmakedefine HAVE_CXXABI_H ${HAVE_CXXABI_H}
 
@@ -259,18 +256,6 @@
 /* Define if mmap() can map files into memory */
 #undef HAVE_MMAP_FILE
 
-/* Define to 1 if you have the <ncursesw/curses.h> header file. */
-#cmakedefine HAVE_NCURSESW_CURSES_H
-
-/* Define to 1 if you have the <ncursesw.h> header file. */
-#cmakedefine HAVE_NCURSESW_H
-
-/* Define to 1 if you have the <ncurses/curses.h> header file. */
-#cmakedefine HAVE_NCURSES_CURSES_H
-
-/* Define to 1 if you have the <ncurses.h> header file. */
-#cmakedefine HAVE_NCURSES_H
-
 /* Define to 1 if you have the <ndir.h> header file, and it defines `DIR'. */
 #cmakedefine HAVE_NDIR_H ${HAVE_NDIR_H}
 
@@ -423,9 +408,6 @@
 /* Define to 1 if you have the <termios.h> header file. */
 #cmakedefine HAVE_TERMIOS_H ${HAVE_TERMIOS_H}
 
-/* Define to 1 if you have the <term.h> header file. */
-#cmakedefine HAVE_TERM_H
-
 /* Define if the neat program is available */
 #cmakedefine HAVE_TWOPI ${HAVE_TWOPI}
 
diff --git a/include/llvm/Config/config.h.in b/include/llvm/Config/config.h.in
index 55c66cc0eb..6dc8c6e0e4 100644
--- a/include/llvm/Config/config.h.in
+++ b/include/llvm/Config/config.h.in
@@ -69,9 +69,6 @@
 /* can use __crashreporter_info__ */
 #undef HAVE_CRASHREPORTER_INFO
 
-/* Define to 1 if you have the <curses.h> header file. */
-#undef HAVE_CURSES_H
-
 /* Define to 1 if you have the <cxxabi.h> header file. */
 #undef HAVE_CXXABI_H
 
@@ -285,18 +282,6 @@
 /* Define if mmap() can map files into memory */
 #undef HAVE_MMAP_FILE
 
-/* Define to 1 if you have the <ncursesw/curses.h> header file. */
-#undef HAVE_NCURSESW_CURSES_H
-
-/* Define to 1 if you have the <ncursesw.h> header file. */
-#undef HAVE_NCURSESW_H
-
-/* Define to 1 if you have the <ncurses/curses.h> header file. */
-#undef HAVE_NCURSES_CURSES_H
-
-/* Define to 1 if you have the <ncurses.h> header file. */
-#undef HAVE_NCURSES_H
-
 /* Define to 1 if you have the <ndir.h> header file, and it defines `DIR'. */
 #undef HAVE_NDIR_H
 
@@ -458,9 +443,6 @@
 /* Define to 1 if you have the <termios.h> header file. */
 #undef HAVE_TERMIOS_H
 
-/* Define to 1 if you have the <term.h> header file. */
-#undef HAVE_TERM_H
-
 /* Define if the neat program is available */
 #undef HAVE_TWOPI
 
diff --git a/lib/Support/Unix/Process.inc b/lib/Support/Unix/Process.inc
index 1bb3e2244c..768c338a4d 100644
--- a/lib/Support/Unix/Process.inc
+++ b/lib/Support/Unix/Process.inc
@@ -38,28 +38,6 @@
 #  include <termios.h>
 #endif
 
-// Pull in the headers we found to go with the terminfo reading library (tinfo,
-// curses, whatever it may be). We have to pull in the 'curses.h' header as the
-// SysV spec only provides certain values and defines from that header even
-// though we work hard to not link against all of the curses implementation
-// when avoidable.
-#ifdef HAVE_TERMINFO
-# if defined(HAVE_CURSES_H)
-#  include <curses.h>
-# elif defined(HAVE_NCURSES_H)
-#  include <ncurses.h>
-# elif defined(HAVE_NCURSESW_H)
-#  include <ncursesw.h>
-# elif defined(HAVE_NCURSES_CURSES_H)
-#  include <ncurses/curses.h>
-# elif defined(HAVE_NCURSESW_CURSES_H)
-#  include <ncursesw/curses.h>
-# endif
-# if defined(HAVE_TERM_H)
-#  include <term.h>
-# endif
-#endif
-
 //===----------------------------------------------------------------------===//
 //=== WARNING: Implementation here must contain only generic UNIX code that
 //===          is guaranteed to work on *all* UNIX variants.
@@ -269,6 +247,14 @@ unsigned Process::StandardErrColumns() {
   return getColumns(2);
 }
 
+#ifdef HAVE_TERMINFO
+// We manually declare these two extern functions because finding the correct
+// headers from various terminfo, curses, or other sources is harder than
+// writing their specs down.
+extern "C" int setupterm(char *term, int filedes, int *errret);
+extern "C" int tigetnum(char *capname);
+#endif
+
 static bool terminalHasColors(int fd) {
 #ifdef HAVE_TERMINFO
   // First, acquire a global lock because these C routines are thread hostile.
@@ -276,7 +262,7 @@ static bool terminalHasColors(int fd) {
   MutexGuard G(M);
 
   int errret = 0;
-  if (setupterm((char *)0, fd, &errret) != OK)
+  if (setupterm((char *)0, fd, &errret) != 0)
     // Regardless of why, if we can't get terminfo, we shouldn't try to print
     // colors.
     return false;
@@ -294,7 +280,7 @@ static bool terminalHasColors(int fd) {
   //
   // The 'tigetnum' routine returns -2 or -1 on errors, and might return 0 if
   // the terminfo says that no colors are supported.
-  if (tigetnum("colors") > 0)
+  if (tigetnum((char *)"colors") > 0)
     return true;
 #endif