From 683388b0fcc8d0cc386e0ab749bcbba7cea18c8f Mon Sep 17 00:00:00 2001
From: Matthew Flatt <mflatt@racket-lang.org>
Date: Mon, 14 Feb 2022 06:26:25 -0700
Subject: [PATCH] configure: try -ltinfo as curses linking flag

---
 ac/curses.m4   | 21 +++++++++++++++++++--
 bc/configure   | 34 +++++++++++++++++++++++++++++++++-
 cs/c/configure | 34 +++++++++++++++++++++++++++++++++-
 3 files changed, 85 insertions(+), 4 deletions(-)

diff --git a/ac/curses.m4 b/ac/curses.m4
index 25b0f1f99a3..d713c990949 100644
--- a/ac/curses.m4
+++ b/ac/curses.m4
@@ -22,7 +22,7 @@ if test "${skip_curses_check}" = "no" ; then
       if test "${enable_curses}" = "no" ; then
         if test "${enable_portable}" = "yes" ; then
           if test "${curses_portable_link}" != "" ; then
-            # Try adding portabel link flags
+            # Try adding portable link flags
             ORIG_LIBS="$LIBS"
             ORIG_CPPFLAGS="$CPPFLAGS"
             ORIG_PREFLAGS="$PREFLAGS"
@@ -62,7 +62,24 @@ if test "${skip_curses_check}" = "no" ; then
           LIBS="$ORIG_LIBS"
           curses_lib_flag=""
         fi
-      fi      
+      fi
+      if test "${enable_curses}" = "no" ; then
+        # Try adding -lncurses -ltinfo
+        ORIG_LIBS="$LIBS"
+        curses_lib_flag=" -lncurses -ltinfo"
+        LIBS="$LIBS $curses_lib_flag"
+        AC_TRY_LINK(
+        [#include <curses.h>]
+        [#include <term.h>],
+[        int errret; ]
+[        setupterm("", 0, &errret);]
+         return 0;
+         , enable_curses=yes, enable_curses=no)
+        if test "${enable_curses}" = "no" ; then
+          LIBS="$ORIG_LIBS"
+          curses_lib_flag=""
+        fi
+      fi
     fi
   fi
  fi
diff --git a/bc/configure b/bc/configure
index 543fab87411..132d2dedd6c 100755
--- a/bc/configure
+++ b/bc/configure
@@ -5991,7 +5991,7 @@ rm -f core conftest.err conftest.$ac_objext \
       if test "${enable_curses}" = "no" ; then
         if test "${enable_portable}" = "yes" ; then
           if test "${curses_portable_link}" != "" ; then
-            # Try adding portabel link flags
+            # Try adding portable link flags
             ORIG_LIBS="$LIBS"
             ORIG_CPPFLAGS="$CPPFLAGS"
             ORIG_PREFLAGS="$PREFLAGS"
@@ -6055,6 +6055,38 @@ if ac_fn_c_try_link "$LINENO"; then :
 else
   enable_curses=no
 fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+        if test "${enable_curses}" = "no" ; then
+          LIBS="$ORIG_LIBS"
+          curses_lib_flag=""
+        fi
+      fi
+      if test "${enable_curses}" = "no" ; then
+        # Try adding -lncurses -ltinfo
+        ORIG_LIBS="$LIBS"
+        curses_lib_flag=" -lncurses -ltinfo"
+        LIBS="$LIBS $curses_lib_flag"
+        cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <curses.h>
+        #include <term.h>
+int
+main ()
+{
+        int errret;
+        setupterm("", 0, &errret);
+         return 0;
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  enable_curses=yes
+else
+  enable_curses=no
+fi
 rm -f core conftest.err conftest.$ac_objext \
     conftest$ac_exeext conftest.$ac_ext
         if test "${enable_curses}" = "no" ; then
diff --git a/cs/c/configure b/cs/c/configure
index db2132b7f4d..2ec78292f56 100755
--- a/cs/c/configure
+++ b/cs/c/configure
@@ -5635,7 +5635,7 @@ rm -f core conftest.err conftest.$ac_objext \
       if test "${enable_curses}" = "no" ; then
         if test "${enable_portable}" = "yes" ; then
           if test "${curses_portable_link}" != "" ; then
-            # Try adding portabel link flags
+            # Try adding portable link flags
             ORIG_LIBS="$LIBS"
             ORIG_CPPFLAGS="$CPPFLAGS"
             ORIG_PREFLAGS="$PREFLAGS"
@@ -5699,6 +5699,38 @@ if ac_fn_c_try_link "$LINENO"; then :
 else
   enable_curses=no
 fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+        if test "${enable_curses}" = "no" ; then
+          LIBS="$ORIG_LIBS"
+          curses_lib_flag=""
+        fi
+      fi
+      if test "${enable_curses}" = "no" ; then
+        # Try adding -lncurses -ltinfo
+        ORIG_LIBS="$LIBS"
+        curses_lib_flag=" -lncurses -ltinfo"
+        LIBS="$LIBS $curses_lib_flag"
+        cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <curses.h>
+        #include <term.h>
+int
+main ()
+{
+        int errret;
+        setupterm("", 0, &errret);
+         return 0;
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  enable_curses=yes
+else
+  enable_curses=no
+fi
 rm -f core conftest.err conftest.$ac_objext \
     conftest$ac_exeext conftest.$ac_ext
         if test "${enable_curses}" = "no" ; then