[Singular] Avoid need of -Ifactory for builds including singular devel files.

[pcpa]

commit 75b20247f6b52d2b88de6ab19324c8ab7751c72c
Author: pcpa <paulo.cesar.pereira.de.andrade at gmail.com>
Date:   Sun Aug 26 10:22:40 2012 -0400

    Avoid need of -Ifactory for builds including singular devel files.

 Singular.spec |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)
---
diff --git a/Singular.spec b/Singular.spec
index 8691763..f6b57a0 100644
--- a/Singular.spec
+++ b/Singular.spec
@@ -329,6 +329,10 @@ pushd factory
 	-i $RPM_BUILD_ROOT%{_includedir}/factory/templates/ftmpl_inst.cc
 popd
 
+# incorrect factory includedir
+sed -e 's|<\(cf_gmp.h>\)|<factory/\1|' \
+    -i $RPM_BUILD_ROOT%{_includedir}/singular/si_gmp.h
+
 %files
 %{_bindir}/Singular
 %{_bindir}/TSingular