Added yacc/bison support to configure.ac.

diff --git a/MACHINES b/MACHINES
index 1547a4acc66fcc9c6e5060095fb554d29f483200..d930dc23e7080b2f8212ceac4c6875734ae30a01 100644 (file)
--- a/MACHINES
+++ b/MACHINES
@@ -22,9 +22,10 @@ the exceptions noted below), using an ANSI C compiler, such as gcc:
 
 On all platforms, the following programs are required to build nmh from a
 snapshot of the source code repository:
-    autoconf
-    automake
-    flex
+    autoconf 2.68 or later
+    automake 1.12 or later
+    flex 2.5.4 or later
+    bison 2.3 or later,  Berkeley yacc 1.9 or later, or Solaris yacc 4.0
 They are not required if building from an nmh distribution (.tar.gz) file.
 
 Platform-specific notes follow.

diff --git a/configure.ac b/configure.ac
index e0a96f5db13f2187ebe0c1adf2cd4ce4d716ac04..4e195b61f395b86b359cff1753dcf06602cf912e 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -206,11 +206,12 @@ AC_HEADER_ASSERT
 dnl ------------------
 dnl CHECK FOR PROGRAMS
 dnl ------------------
-AC_PROG_MAKE_SET       dnl Does make define $MAKE
-AC_PROG_INSTALL                dnl Check for BSD compatible `install'
-AC_PROG_RANLIB         dnl Check for `ranlib'
+AC_PROG_MAKE_SET        dnl Does make define $MAKE
+AC_PROG_INSTALL         dnl Check for BSD compatible `install'
+AC_PROG_RANLIB          dnl Check for `ranlib'
 AC_PROG_AWK             dnl Check for mawk,gawk,nawk, then awk
-AC_PROG_SED            dnl Check for Posix-compliant sed
+AC_PROG_SED             dnl Check for Posix-compliant sed
+AC_PROG_YACC            dnl Check for yacc/bison
 AM_PROG_LEX             dnl Check for lex/flex
 
 AM_PROG_AR