#
#
# patch "INSTALL"
#  from [240d5caa067b94a749936660cba6302378484413]
#    to [82f566ecbce57f7621b229ed4e3c6260a54ef56e]
#
============================================================
--- INSTALL	240d5caa067b94a749936660cba6302378484413
+++ INSTALL	82f566ecbce57f7621b229ed4e3c6260a54ef56e
@@ -21,6 +21,7 @@ 1. prerequisites: 
       supported.
     - zlib 1.1.4 or later.
     - libiconv if the iconv() function is missing.
+    - texinfo (to build the documentation).
 
         on debian: 
 
@@ -30,6 +31,7 @@ 1. prerequisites: 
            apt-get install libboost-dev
            apt-get install libz-dev
            apt-get install g++
+           apt-get install texinfo
 
         on fedora: 
 
@@ -39,6 +41,7 @@ 1. prerequisites: 
            yum install boost-devel 
            yum install zlib-devel
            yum install gcc-c++
+           yum install texinfo texinfo-tex
 
         on Windows (incomplete):