X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/2593afab8172a1e332628b20138c5db087bed618..41cce2f604996c7713d9025f8a719ea56d83783e:/configure.ac

diff --git a/configure.ac b/configure.ac
index d637c6ed..9489054c 100644
--- a/configure.ac
+++ b/configure.ac
@@ -59,7 +59,7 @@ if test "${enableval}" = yes; then
 fi
 
 # Checks for programs.
-AM_PROG_LEX
+AC_PROG_LEX
 AC_PROG_YACC
 AC_PROG_RANLIB
 BISON_PROG_GNU_M4
@@ -71,11 +71,10 @@ AC_DEFINE_UNQUOTED([M4], ["$M4"], [Define to the GNU M4 executable name.])
 # Checks for header files.
 AC_HEADER_STDC
 AC_CHECK_HEADERS([ctype.h locale.h memory.h stdlib.h string.h unistd.h])
+AC_HEADER_STDBOOL
 
 # Checks for compiler characteristics.
-AC_C_CONST
 AC_C_INLINE
-AM_C_PROTOTYPES
 
 # Checks for library functions.
 AC_FUNC_ALLOCA