[octave-symbolic] make it buildable without an older version of octave-symbolic installed

[sailer]

commit a5be0d069a679f6d87142740b71aa1d6786094fe
Author: Thomas Sailer <t.sailer at alumni.ethz.ch>
Date:   Mon Oct 24 14:45:59 2011 +0200

    make it buildable without an older version of octave-symbolic installed

 octave-symbolic.patch |    7 +++++++
 octave-symbolic.spec  |    5 +++++
 2 files changed, 12 insertions(+), 0 deletions(-)
---
diff --git a/octave-symbolic.patch b/octave-symbolic.patch
new file mode 100644
index 0000000..a2c3bee
--- /dev/null
+++ b/octave-symbolic.patch
@@ -0,0 +1,7 @@
+--- PKG_ADD.build	2011-10-24 12:34:21.000000000 +0200
++++ PKG_ADD	2011-10-24 12:34:37.000000000 +0200
+@@ -41,4 +41,3 @@
+ autoload ("syminfo", fullfile (fileparts (mfilename ("fullpath")), "symbols.oct"));
+ autoload ("symlsolve", fullfile (fileparts (mfilename ("fullpath")), "symbols.oct"));
+ autoload ("sumterms", fullfile (fileparts (mfilename ("fullpath")), "symbols.oct"));
+-symbols ();
diff --git a/octave-symbolic.spec b/octave-symbolic.spec
index 04ccc12..f1b0f08 100644
--- a/octave-symbolic.spec
+++ b/octave-symbolic.spec
@@ -9,6 +9,9 @@ License:        GPLv2+
 URL:            http://octave.sourceforge.net/symbolic/
 Source0:        http://downloads.sourceforge.net/octave/%{octpkg}-%{version}.tar.gz
 
+# enable building of octave-symbolic without (a previous version of) octave-symbolic being installed
+Patch0:         octave-symbolic.patch
+
 BuildRequires:  octave-devel
 BuildRequires:  ginac-devel
 
@@ -25,6 +28,7 @@ Symbolic toolbox based on GiNaC and CLN.
 
 %prep
 %setup -q -n %{octpkg}
+%patch0 -p0 -b .build
 
 %build
 %octave_pkg_build
@@ -33,6 +37,7 @@ Symbolic toolbox based on GiNaC and CLN.
 rm -rf %{buildroot}
 %octave_pkg_install
 rm -f %{buildroot}/%{octpkgdir}/doc/INSTALL
+echo "symbols ();" >> echo `ls %{buildroot}/%{octpkglibdir}/*/PKG_ADD`
 
 %post
 %octave_cmd pkg rebuild