diff --git a/rpm-4.5.90-macrofix.patch b/rpm-4.5.90-macrofix.patch
new file mode 100644
index 0000000..10522b9
--- /dev/null
+++ b/rpm-4.5.90-macrofix.patch
@@ -0,0 +1,19 @@
+commit 3b9636cd69b81b6e23331bb797c0fdde79e97316
+Author: Jindrich Novy <jnovy@redhat.com>
+Date:   Thu Aug 14 13:08:09 2008 +0200
+
+    Accept numerical characters in macro expansion (related to rhbz#456103)
+
+diff --git a/build/expression.c b/build/expression.c
+index 970ec05..83a4021 100644
+--- a/build/expression.c
++++ b/build/expression.c
+@@ -272,7 +272,7 @@ static int rdToken(ParseState state)
+       char *temp;
+       size_t ts;
+ 
+-      for (ts=1; p[ts] && (risalpha(p[ts]) || p[ts] == '_'); ts++);
++      for (ts=1; p[ts] && (risalnum(p[ts]) || p[ts] == '_'); ts++);
+       temp = xmalloc(ts+1);
+       memcpy(temp, p, ts);
+       p += ts-1;
diff --git a/rpm.spec b/rpm.spec
index ce1eb1f..093b430 100644
--- a/rpm.spec
+++ b/rpm.spec
@@ -18,7 +18,7 @@
 Summary: The RPM package management system
 Name: rpm
 Version: %{rpmver}
-Release: 0.%{snapver}.3
+Release: 0.%{snapver}.4
 Group: System Environment/Base
 Url: http://www.rpm.org/
 Source0: http://rpm.org/releases/testing/%{name}-%{srcver}.tar.bz2
@@ -35,6 +35,7 @@ Patch100: rpm-4.6.x-no-pkgconfig-reqs.patch
 Patch200: rpm-4.5.90-archivesize.patch
 Patch201: rpm-4.5.90-noarch-subpackages.patch
 Patch202: rpm-4.5.90-segfault.patch
+Patch203: rpm-4.5.90-macrofix.patch
 
 # These are not yet upstream
 Patch300: rpm-4.5.90-posttrans.patch
@@ -168,6 +169,7 @@ that will manipulate RPM packages and databases.
 %patch200 -p1 -b .archivesize
 %patch201 -p1 -b .noarch-subpackages
 %patch202 -p1 -b .segfault
+%patch203 -p1 -b .macrofix
 
 # needs a bit of upstream love first...
 #%patch300 -p1 -b .posttrans
@@ -346,6 +348,10 @@ exit 0
 %doc doc/librpm/html/*
 
 %changelog
+* Mon Sep 01 2008 Jindrich Novy <jnovy@redhat.com>
+- fix parsing of boolean expressions in spec (#456103)
+  (unbreaks pam, jpilot and maybe other builds)
+
 * Tue Aug 26 2008 Jindrich Novy <jnovy@redhat.com>
 - add support for noarch subpackages
 - fix segfault in case of insufficient disk space detected (#460146)