New file, contains Tom Dickey's CF_CURSES_LIBS macro from lynx.

1 files changed, 83 insertions, 0 deletions

diff --git a/m4/curslib.m4 b/m4/curslib.m4
new file mode 100644
index 00000000..5d443ecc
--- /dev/null
+++ b/m4/curslib.m4
@@ -0,0 +1,83 @@
+dnl ---------------------------------------------------------------------------
+dnl Look for the curses libraries.  Older curses implementations may require
+dnl termcap/termlib to be linked as well.
+AC_DEFUN([CF_CURSES_LIBS],[
+AC_CHECK_FUNC(initscr,,[
+case $host_os in #(vi
+freebsd*) #(vi
+	AC_CHECK_LIB(mytinfo,tgoto,[LIBS="-lmytinfo $LIBS"])
+	;;
+hpux10.*|hpux11.*)
+	AC_CHECK_LIB(cur_colr,initscr,[
+		LIBS="-lcur_colr $LIBS"
+		CFLAGS="-I/usr/include/curses_colr $CFLAGS"
+		ac_cv_func_initscr=yes
+		],[
+	AC_CHECK_LIB(Hcurses,initscr,[
+		# HP's header uses __HP_CURSES, but user claims _HP_CURSES.
+		LIBS="-lHcurses $LIBS"
+		CFLAGS="-D__HP_CURSES -D_HP_CURSES $CFLAGS"
+		ac_cv_func_initscr=yes
+		])])
+	;;
+linux*) # Suse Linux does not follow /usr/lib convention
+	LIBS="$LIBS -L/lib"
+	;;
+esac
+
+if test ".$With5lib" != ".no" ; then
+if test -d /usr/5lib ; then
+	# SunOS 3.x or 4.x
+	CPPFLAGS="$CPPFLAGS -I/usr/5include"
+	LIBS="$LIBS -L/usr/5lib"
+fi
+fi
+
+if test ".$ac_cv_func_initscr" != .yes ; then
+	cf_save_LIBS="$LIBS"
+	cf_term_lib=""
+	cf_curs_lib=""
+
+	# Check for library containing tgoto.  Do this before curses library
+	# because it may be needed to link the test-case for initscr.
+	AC_CHECK_FUNC(tgoto,[cf_term_lib=predefined],[
+		for cf_term_lib in termcap termlib unknown
+		do
+			AC_CHECK_LIB($cf_term_lib,tgoto,[break])
+		done
+	])
+
+	# Check for library containing initscr
+	test "$cf_term_lib" != predefined && test "$cf_term_lib" != unknown && LIBS="-l$cf_term_lib $cf_save_LIBS"
+	for cf_curs_lib in cursesX curses ncurses xcurses jcurses unknown
+	do
+		AC_CHECK_LIB($cf_curs_lib,initscr,[break])
+	done
+	test $cf_curs_lib = unknown && AC_ERROR(no curses library found)
+
+	LIBS="-l$cf_curs_lib $cf_save_LIBS"
+	if test "$cf_term_lib" = unknown ; then
+		AC_MSG_CHECKING(if we can link with $cf_curs_lib library)
+		AC_TRY_LINK([#include <${cf_cv_ncurses_header-curses.h}>],
+			[initscr()],
+			[cf_result=yes],
+			[cf_result=no])
+		AC_MSG_RESULT($cf_result)
+		test $cf_result = no && AC_ERROR(Cannot link curses library)
+	elif test "$cf_term_lib" != predefined ; then
+		AC_MSG_CHECKING(if we need both $cf_curs_lib and $cf_term_lib libraries)
+		AC_TRY_LINK([#include <${cf_cv_ncurses_header-curses.h}>],
+			[initscr(); tgoto((char *)0, 0, 0);],
+			[cf_result=no],
+			[
+			LIBS="-l$cf_curs_lib -l$cf_term_lib $cf_save_LIBS"
+			AC_TRY_LINK([#include <${cf_cv_ncurses_header-curses.h}>],
+				[initscr()],
+				[cf_result=yes],
+				[cf_result=error])
+			])
+		AC_MSG_RESULT($cf_result)
+	fi
+fi
+
+])])