Update/enforce/document our build requirements.

diff --git a/README b/README
index 60b334b9f347e12df57a80b1c54d6435aecf6654..ae7a55a6ca44338e19350b4cee9c29237b91d80d 100644 (file)
--- a/README
+++ b/README
@@ -25,8 +25,12 @@ Requirements
 ------------
 
  - git
- - gcc, g++, make, ...
- - autoconf, automake, libtool, pkg-config
+ - gcc
+ - make
+ - autoconf >= 2.63
+ - automake >= 1.11
+ - libtool
+ - pkg-config >= 0.22
  - libglib >= 2.22.0
  - libusb >= 1.0.5 (for most logic analyzer hardware)
  - libzip >= 0.8

diff --git a/configure.ac b/configure.ac
index 0413453647196803b46c0fc6fdbb88e3e7abb40e..be5137b54d77e9addb8cab97b77615a984b3c8cb 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -17,7 +17,8 @@
 ## along with this program.  If not, see <http://www.gnu.org/licenses/>.
 ##
 
-AC_PREREQ([2.61])
+# We require at least autoconf 2.63 (AC_INIT format changed there).
+AC_PREREQ([2.63])
 
 # libsigrok package version number (NOT the same as shared lib version!).
 m4_define([libsigrok_major_version], [0])
@@ -31,7 +32,8 @@ AC_CONFIG_HEADER([config.h])
 AC_CONFIG_MACRO_DIR([autostuff])
 AC_CONFIG_AUX_DIR([autostuff])
 
-AM_INIT_AUTOMAKE([-Wall -Werror foreign std-options])
+# We require at least automake 1.11 (needed for 'silent rules').
+AM_INIT_AUTOMAKE([1.11 -Wall -Werror foreign std-options])
 m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
 
 AH_TOP([#ifndef LIBSIGROK_CONFIG_H