gcc says those values are out of bounds

[apps/madtty.git] / configure.ac

diff --git a/configure.ac b/configure.ac
index a4906fe..eef258c 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -8,33 +8,17 @@ AC_SUBST(PACKAGE_VERSION)
 AC_CONFIG_SRCDIR([madtty/madtty.h])
 
 dnl Checks for programs.
-AC_PROG_CC
+AC_PROG_CC_C99
+AC_GNU_SOURCE
 
 dnl Checks for header files.
 AC_HEADER_STDC
 AC_HEADER_STDBOOL
 AC_CHECK_HEADERS([sys/types.h unistd.h stdlib.h string.h])
 
-dnl Check for libraries
-AC_ARG_ENABLE([ncurses],
-              AS_HELP_STRING([--disable-ncurses], [disables ncurses support (default enabled)]))
-if test "${enable_curses}" != "no"; then
-    AC_CHECK_LIB([ncurses], [initscr], [],
-                 AC_MSG_ERROR([Need ncurses to compile ncurses support.]))
-    CFLAGS="$CFLAGS -DUSE_NCURSES"
-fi
-
-dnl Checks for library functions
-AC_CHECK_FUNCS([memset select setenv])
-AC_FUNC_MALLOC
-AC_FUNC_SELECT_ARGTYPES
-
 dnl Checks for typedefs, structures, and compiler characteristics.
 AC_C_CONST
-AC_HEADER_TIME
 AC_C_INLINE
-AC_TYPE_PID_T
-AC_TYPE_SIGNAL
 
 AC_CONFIG_FILES([am/vars.mk
                  madtty/madtty.pc