dependencies: remove a few useless mandatory dependencies

awk, bison, flex, makeinfo, gettext should be built as dependencies of
packages when needed. In practice, even the toolchain build doesn't
need any of these, and only a few packages do require them.

It is not needed to list gzip and bzip2 since they are already checked
through ${DL_TOOLS}: whenever a package needs gzip or bzip2 for its
extraction, the dependency is added.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>

docs/manual/prerequisite.txt

@@ -30,10 +30,6 @@ Mandatory packages
 ** +gcc+ (version 2.95 or any later)
 ** `g++` (version 2.95 or any later)
 ** +bash+
-** +gawk+
-** +bison+
-** +flex+
-** +gettext+
 ** +patch+
 ** +gzip+
 ** +bzip2+
@@ -43,7 +39,6 @@ Mandatory packages
 ** +python+ (version 2.6 or 2.7)
 ** +unzip+
 ** +rsync+
-** +texinfo+ (required for internal Buildroot toolchain backend)
 
 * Source fetching tools:
 ** +wget+

support/dependencies/dependencies.sh

@@ -131,14 +131,10 @@ if ! $SHELL --version 2>&1 | grep -q '^GNU bash'; then
 fi;
 
 # Check that a few mandatory programs are installed
-for prog in awk bison flex msgfmt makeinfo patch gzip bzip2 perl tar wget cpio python unzip rsync ${DL_TOOLS} ; do
+for prog in patch perl tar wget cpio python unzip rsync ${DL_TOOLS} ; do
     if ! which $prog > /dev/null ; then
 	/bin/echo -e "\nYou must install '$prog' on your build machine";
-	if test $prog = "makeinfo" ; then
-	    /bin/echo -e "makeinfo is usually part of the texinfo package in your distribution\n"
-	elif test $prog = "msgfmt" ; then
-	    /bin/echo -e "msgfmt is usually part of the gettext package in your distribution\n"
-	elif test $prog = "svn" ; then
+	if test $prog = "svn" ; then
 	    /bin/echo -e "svn is usually part of the subversion package in your distribution\n"
 	else
 	    /bin/echo -e "\n"