For example, net-im/skype would depend on:
dev-libs/libfoo[abi_x86_32]
and that dependency would be valid both for amd64 multilib & x86.
---
gx86/profiles/arch/x86/use.force | 5 +++++
gx86/profiles/arch/x86/use.mask | 5 +++++
2 files changed, 10 insertions(+)
diff --git a/gx86/profiles/arch/x86/use.force b/gx86/profiles/arch/x86/use.force
index 049e7af..1f18bb0 100644
--- a/gx86/profiles/arch/x86/use.force
+++ b/gx86/profiles/arch/x86/use.force
@@ -1,2 +1,7 @@
# Force the flag which corresponds to ARCH.
x86
+
+# Michał Górny <mgo...@gentoo.org> (26 Jan 2013)
+# Force the flag corresponding to the only ABI. This allows x86 binary
+# packages to have uniform dependencies for amd64-multilib & x86.
+abi_x86_32
diff --git a/gx86/profiles/arch/x86/use.mask b/gx86/profiles/arch/x86/use.mask
index b342b71..97057ad 100644
--- a/gx86/profiles/arch/x86/use.mask
+++ b/gx86/profiles/arch/x86/use.mask
@@ -170,3 +170,8 @@ win64
# fdk-aac is already keyworded here
-fdk
+
+# Michał Górny <mgo...@gentoo.org> (26 Jan 2013)
+# Unmask the flag corresponding to the only ABI. This allows x86 binary
+# packages to have uniform dependencies for amd64-multilib & x86.
+abi_x86_32
--
1.8.1.1
