diff --git a/_multibuild b/_multibuild
new file mode 100644
index 0000000..aba119a
--- /dev/null
+++ b/_multibuild
@@ -0,0 +1,29 @@
+<multibuild>
+  <package>cross-aarch64-gcc11-bootstrap</package>
+  <package>cross-aarch64-gcc11</package>
+  <package>cross-amdgcn-gcc11</package>
+  <package>cross-arm-gcc11</package>
+  <package>cross-arm-none-gcc11-bootstrap</package>
+  <package>cross-arm-none-gcc11</package>
+  <package>cross-avr-gcc11-bootstrap</package>
+  <package>cross-avr-gcc11</package>
+  <package>cross-epiphany-gcc11-bootstrap</package>
+  <package>cross-epiphany-gcc11</package>
+  <package>cross-hppa-gcc11</package>
+  <package>cross-m68k-gcc11</package>
+  <package>cross-mips-gcc11</package>
+  <package>cross-nvptx-gcc11</package>
+  <package>cross-ppc64-gcc11</package>
+  <package>cross-ppc64le-gcc11</package>
+  <package>cross-riscv64-elf-gcc11-bootstrap</package>
+  <package>cross-riscv64-elf-gcc11</package>
+  <package>cross-riscv64-gcc11-bootstrap</package>
+  <package>cross-riscv64-gcc11</package>
+  <package>cross-rx-gcc11-bootstrap</package>
+  <package>cross-rx-gcc11</package>
+  <package>cross-s390x-gcc11</package>
+  <package>cross-sparc-gcc11</package>
+  <package>cross-sparc64-gcc11</package>
+  <package>cross-x86_64-gcc11</package>
+  <package>gcc11-testresults</package>
+</multibuild>
diff --git a/cross-aarch64-gcc11-bootstrap.changes b/cross-aarch64-gcc11-bootstrap.changes
index 9834ce8..3fdb066 100644
--- a/cross-aarch64-gcc11-bootstrap.changes
+++ b/cross-aarch64-gcc11-bootstrap.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Fri May  5 15:04:54 UTC 2023 - Dominique Leuenberger <dimstar@opensuse.org>
+
+- Add _multibuild to define 2nd spec file as additional flavor.
+  Eliminates the need for source package links in OBS.
+
 -------------------------------------------------------------------
 Tue Dec 27 10:41:18 UTC 2022 - Ludwig Nussel <lnussel@suse.com>
 
diff --git a/cross-aarch64-gcc11.changes b/cross-aarch64-gcc11.changes
index 9834ce8..3fdb066 100644
--- a/cross-aarch64-gcc11.changes
+++ b/cross-aarch64-gcc11.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Fri May  5 15:04:54 UTC 2023 - Dominique Leuenberger <dimstar@opensuse.org>
+
+- Add _multibuild to define 2nd spec file as additional flavor.
+  Eliminates the need for source package links in OBS.
+
 -------------------------------------------------------------------
 Tue Dec 27 10:41:18 UTC 2022 - Ludwig Nussel <lnussel@suse.com>
 
diff --git a/cross-amdgcn-gcc11.changes b/cross-amdgcn-gcc11.changes
index 9834ce8..3fdb066 100644
--- a/cross-amdgcn-gcc11.changes
+++ b/cross-amdgcn-gcc11.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Fri May  5 15:04:54 UTC 2023 - Dominique Leuenberger <dimstar@opensuse.org>
+
+- Add _multibuild to define 2nd spec file as additional flavor.
+  Eliminates the need for source package links in OBS.
+
 -------------------------------------------------------------------
 Tue Dec 27 10:41:18 UTC 2022 - Ludwig Nussel <lnussel@suse.com>
 
diff --git a/cross-arm-gcc11.changes b/cross-arm-gcc11.changes
index 9834ce8..3fdb066 100644
--- a/cross-arm-gcc11.changes
+++ b/cross-arm-gcc11.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Fri May  5 15:04:54 UTC 2023 - Dominique Leuenberger <dimstar@opensuse.org>
+
+- Add _multibuild to define 2nd spec file as additional flavor.
+  Eliminates the need for source package links in OBS.
+
 -------------------------------------------------------------------
 Tue Dec 27 10:41:18 UTC 2022 - Ludwig Nussel <lnussel@suse.com>
 
diff --git a/cross-arm-none-gcc11-bootstrap.changes b/cross-arm-none-gcc11-bootstrap.changes
index 9834ce8..3fdb066 100644
--- a/cross-arm-none-gcc11-bootstrap.changes
+++ b/cross-arm-none-gcc11-bootstrap.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Fri May  5 15:04:54 UTC 2023 - Dominique Leuenberger <dimstar@opensuse.org>
+
+- Add _multibuild to define 2nd spec file as additional flavor.
+  Eliminates the need for source package links in OBS.
+
 -------------------------------------------------------------------
 Tue Dec 27 10:41:18 UTC 2022 - Ludwig Nussel <lnussel@suse.com>
 
diff --git a/cross-arm-none-gcc11.changes b/cross-arm-none-gcc11.changes
index 9834ce8..3fdb066 100644
--- a/cross-arm-none-gcc11.changes
+++ b/cross-arm-none-gcc11.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Fri May  5 15:04:54 UTC 2023 - Dominique Leuenberger <dimstar@opensuse.org>
+
+- Add _multibuild to define 2nd spec file as additional flavor.
+  Eliminates the need for source package links in OBS.
+
 -------------------------------------------------------------------
 Tue Dec 27 10:41:18 UTC 2022 - Ludwig Nussel <lnussel@suse.com>
 
diff --git a/cross-avr-gcc11-bootstrap.changes b/cross-avr-gcc11-bootstrap.changes
index 9834ce8..3fdb066 100644
--- a/cross-avr-gcc11-bootstrap.changes
+++ b/cross-avr-gcc11-bootstrap.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Fri May  5 15:04:54 UTC 2023 - Dominique Leuenberger <dimstar@opensuse.org>
+
+- Add _multibuild to define 2nd spec file as additional flavor.
+  Eliminates the need for source package links in OBS.
+
 -------------------------------------------------------------------
 Tue Dec 27 10:41:18 UTC 2022 - Ludwig Nussel <lnussel@suse.com>
 
diff --git a/cross-avr-gcc11.changes b/cross-avr-gcc11.changes
index 9834ce8..3fdb066 100644
--- a/cross-avr-gcc11.changes
+++ b/cross-avr-gcc11.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Fri May  5 15:04:54 UTC 2023 - Dominique Leuenberger <dimstar@opensuse.org>
+
+- Add _multibuild to define 2nd spec file as additional flavor.
+  Eliminates the need for source package links in OBS.
+
 -------------------------------------------------------------------
 Tue Dec 27 10:41:18 UTC 2022 - Ludwig Nussel <lnussel@suse.com>
 
diff --git a/cross-epiphany-gcc11-bootstrap.changes b/cross-epiphany-gcc11-bootstrap.changes
index 9834ce8..3fdb066 100644
--- a/cross-epiphany-gcc11-bootstrap.changes
+++ b/cross-epiphany-gcc11-bootstrap.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Fri May  5 15:04:54 UTC 2023 - Dominique Leuenberger <dimstar@opensuse.org>
+
+- Add _multibuild to define 2nd spec file as additional flavor.
+  Eliminates the need for source package links in OBS.
+
 -------------------------------------------------------------------
 Tue Dec 27 10:41:18 UTC 2022 - Ludwig Nussel <lnussel@suse.com>
 
diff --git a/cross-epiphany-gcc11.changes b/cross-epiphany-gcc11.changes
index 9834ce8..3fdb066 100644
--- a/cross-epiphany-gcc11.changes
+++ b/cross-epiphany-gcc11.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Fri May  5 15:04:54 UTC 2023 - Dominique Leuenberger <dimstar@opensuse.org>
+
+- Add _multibuild to define 2nd spec file as additional flavor.
+  Eliminates the need for source package links in OBS.
+
 -------------------------------------------------------------------
 Tue Dec 27 10:41:18 UTC 2022 - Ludwig Nussel <lnussel@suse.com>
 
diff --git a/cross-hppa-gcc11.changes b/cross-hppa-gcc11.changes
index 9834ce8..3fdb066 100644
--- a/cross-hppa-gcc11.changes
+++ b/cross-hppa-gcc11.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Fri May  5 15:04:54 UTC 2023 - Dominique Leuenberger <dimstar@opensuse.org>
+
+- Add _multibuild to define 2nd spec file as additional flavor.
+  Eliminates the need for source package links in OBS.
+
 -------------------------------------------------------------------
 Tue Dec 27 10:41:18 UTC 2022 - Ludwig Nussel <lnussel@suse.com>
 
diff --git a/cross-m68k-gcc11.changes b/cross-m68k-gcc11.changes
index 9834ce8..3fdb066 100644
--- a/cross-m68k-gcc11.changes
+++ b/cross-m68k-gcc11.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Fri May  5 15:04:54 UTC 2023 - Dominique Leuenberger <dimstar@opensuse.org>
+
+- Add _multibuild to define 2nd spec file as additional flavor.
+  Eliminates the need for source package links in OBS.
+
 -------------------------------------------------------------------
 Tue Dec 27 10:41:18 UTC 2022 - Ludwig Nussel <lnussel@suse.com>
 
diff --git a/cross-mips-gcc11.changes b/cross-mips-gcc11.changes
index 9834ce8..3fdb066 100644
--- a/cross-mips-gcc11.changes
+++ b/cross-mips-gcc11.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Fri May  5 15:04:54 UTC 2023 - Dominique Leuenberger <dimstar@opensuse.org>
+
+- Add _multibuild to define 2nd spec file as additional flavor.
+  Eliminates the need for source package links in OBS.
+
 -------------------------------------------------------------------
 Tue Dec 27 10:41:18 UTC 2022 - Ludwig Nussel <lnussel@suse.com>
 
diff --git a/cross-nvptx-gcc11.changes b/cross-nvptx-gcc11.changes
index 9834ce8..3fdb066 100644
--- a/cross-nvptx-gcc11.changes
+++ b/cross-nvptx-gcc11.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Fri May  5 15:04:54 UTC 2023 - Dominique Leuenberger <dimstar@opensuse.org>
+
+- Add _multibuild to define 2nd spec file as additional flavor.
+  Eliminates the need for source package links in OBS.
+
 -------------------------------------------------------------------
 Tue Dec 27 10:41:18 UTC 2022 - Ludwig Nussel <lnussel@suse.com>
 
diff --git a/cross-ppc64-gcc11.changes b/cross-ppc64-gcc11.changes
index 9834ce8..3fdb066 100644
--- a/cross-ppc64-gcc11.changes
+++ b/cross-ppc64-gcc11.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Fri May  5 15:04:54 UTC 2023 - Dominique Leuenberger <dimstar@opensuse.org>
+
+- Add _multibuild to define 2nd spec file as additional flavor.
+  Eliminates the need for source package links in OBS.
+
 -------------------------------------------------------------------
 Tue Dec 27 10:41:18 UTC 2022 - Ludwig Nussel <lnussel@suse.com>
 
diff --git a/cross-ppc64le-gcc11.changes b/cross-ppc64le-gcc11.changes
index 9834ce8..3fdb066 100644
--- a/cross-ppc64le-gcc11.changes
+++ b/cross-ppc64le-gcc11.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Fri May  5 15:04:54 UTC 2023 - Dominique Leuenberger <dimstar@opensuse.org>
+
+- Add _multibuild to define 2nd spec file as additional flavor.
+  Eliminates the need for source package links in OBS.
+
 -------------------------------------------------------------------
 Tue Dec 27 10:41:18 UTC 2022 - Ludwig Nussel <lnussel@suse.com>
 
diff --git a/cross-riscv64-elf-gcc11-bootstrap.changes b/cross-riscv64-elf-gcc11-bootstrap.changes
index 9834ce8..3fdb066 100644
--- a/cross-riscv64-elf-gcc11-bootstrap.changes
+++ b/cross-riscv64-elf-gcc11-bootstrap.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Fri May  5 15:04:54 UTC 2023 - Dominique Leuenberger <dimstar@opensuse.org>
+
+- Add _multibuild to define 2nd spec file as additional flavor.
+  Eliminates the need for source package links in OBS.
+
 -------------------------------------------------------------------
 Tue Dec 27 10:41:18 UTC 2022 - Ludwig Nussel <lnussel@suse.com>
 
diff --git a/cross-riscv64-elf-gcc11.changes b/cross-riscv64-elf-gcc11.changes
index 9834ce8..3fdb066 100644
--- a/cross-riscv64-elf-gcc11.changes
+++ b/cross-riscv64-elf-gcc11.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Fri May  5 15:04:54 UTC 2023 - Dominique Leuenberger <dimstar@opensuse.org>
+
+- Add _multibuild to define 2nd spec file as additional flavor.
+  Eliminates the need for source package links in OBS.
+
 -------------------------------------------------------------------
 Tue Dec 27 10:41:18 UTC 2022 - Ludwig Nussel <lnussel@suse.com>
 
diff --git a/cross-riscv64-gcc11-bootstrap.changes b/cross-riscv64-gcc11-bootstrap.changes
index 9834ce8..3fdb066 100644
--- a/cross-riscv64-gcc11-bootstrap.changes
+++ b/cross-riscv64-gcc11-bootstrap.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Fri May  5 15:04:54 UTC 2023 - Dominique Leuenberger <dimstar@opensuse.org>
+
+- Add _multibuild to define 2nd spec file as additional flavor.
+  Eliminates the need for source package links in OBS.
+
 -------------------------------------------------------------------
 Tue Dec 27 10:41:18 UTC 2022 - Ludwig Nussel <lnussel@suse.com>
 
diff --git a/cross-riscv64-gcc11.changes b/cross-riscv64-gcc11.changes
index 9834ce8..3fdb066 100644
--- a/cross-riscv64-gcc11.changes
+++ b/cross-riscv64-gcc11.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Fri May  5 15:04:54 UTC 2023 - Dominique Leuenberger <dimstar@opensuse.org>
+
+- Add _multibuild to define 2nd spec file as additional flavor.
+  Eliminates the need for source package links in OBS.
+
 -------------------------------------------------------------------
 Tue Dec 27 10:41:18 UTC 2022 - Ludwig Nussel <lnussel@suse.com>
 
diff --git a/cross-rx-gcc11-bootstrap.changes b/cross-rx-gcc11-bootstrap.changes
index 9834ce8..3fdb066 100644
--- a/cross-rx-gcc11-bootstrap.changes
+++ b/cross-rx-gcc11-bootstrap.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Fri May  5 15:04:54 UTC 2023 - Dominique Leuenberger <dimstar@opensuse.org>
+
+- Add _multibuild to define 2nd spec file as additional flavor.
+  Eliminates the need for source package links in OBS.
+
 -------------------------------------------------------------------
 Tue Dec 27 10:41:18 UTC 2022 - Ludwig Nussel <lnussel@suse.com>
 
diff --git a/cross-rx-gcc11.changes b/cross-rx-gcc11.changes
index 9834ce8..3fdb066 100644
--- a/cross-rx-gcc11.changes
+++ b/cross-rx-gcc11.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Fri May  5 15:04:54 UTC 2023 - Dominique Leuenberger <dimstar@opensuse.org>
+
+- Add _multibuild to define 2nd spec file as additional flavor.
+  Eliminates the need for source package links in OBS.
+
 -------------------------------------------------------------------
 Tue Dec 27 10:41:18 UTC 2022 - Ludwig Nussel <lnussel@suse.com>
 
diff --git a/cross-s390x-gcc11.changes b/cross-s390x-gcc11.changes
index 9834ce8..3fdb066 100644
--- a/cross-s390x-gcc11.changes
+++ b/cross-s390x-gcc11.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Fri May  5 15:04:54 UTC 2023 - Dominique Leuenberger <dimstar@opensuse.org>
+
+- Add _multibuild to define 2nd spec file as additional flavor.
+  Eliminates the need for source package links in OBS.
+
 -------------------------------------------------------------------
 Tue Dec 27 10:41:18 UTC 2022 - Ludwig Nussel <lnussel@suse.com>
 
diff --git a/cross-sparc-gcc11.changes b/cross-sparc-gcc11.changes
index 9834ce8..3fdb066 100644
--- a/cross-sparc-gcc11.changes
+++ b/cross-sparc-gcc11.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Fri May  5 15:04:54 UTC 2023 - Dominique Leuenberger <dimstar@opensuse.org>
+
+- Add _multibuild to define 2nd spec file as additional flavor.
+  Eliminates the need for source package links in OBS.
+
 -------------------------------------------------------------------
 Tue Dec 27 10:41:18 UTC 2022 - Ludwig Nussel <lnussel@suse.com>
 
diff --git a/cross-sparc64-gcc11.changes b/cross-sparc64-gcc11.changes
index 9834ce8..3fdb066 100644
--- a/cross-sparc64-gcc11.changes
+++ b/cross-sparc64-gcc11.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Fri May  5 15:04:54 UTC 2023 - Dominique Leuenberger <dimstar@opensuse.org>
+
+- Add _multibuild to define 2nd spec file as additional flavor.
+  Eliminates the need for source package links in OBS.
+
 -------------------------------------------------------------------
 Tue Dec 27 10:41:18 UTC 2022 - Ludwig Nussel <lnussel@suse.com>
 
diff --git a/cross-x86_64-gcc11.changes b/cross-x86_64-gcc11.changes
index 9834ce8..3fdb066 100644
--- a/cross-x86_64-gcc11.changes
+++ b/cross-x86_64-gcc11.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Fri May  5 15:04:54 UTC 2023 - Dominique Leuenberger <dimstar@opensuse.org>
+
+- Add _multibuild to define 2nd spec file as additional flavor.
+  Eliminates the need for source package links in OBS.
+
 -------------------------------------------------------------------
 Tue Dec 27 10:41:18 UTC 2022 - Ludwig Nussel <lnussel@suse.com>
 
diff --git a/gcc11-testresults.changes b/gcc11-testresults.changes
index 9834ce8..3fdb066 100644
--- a/gcc11-testresults.changes
+++ b/gcc11-testresults.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Fri May  5 15:04:54 UTC 2023 - Dominique Leuenberger <dimstar@opensuse.org>
+
+- Add _multibuild to define 2nd spec file as additional flavor.
+  Eliminates the need for source package links in OBS.
+
 -------------------------------------------------------------------
 Tue Dec 27 10:41:18 UTC 2022 - Ludwig Nussel <lnussel@suse.com>
 
diff --git a/gcc11.changes b/gcc11.changes
index 9834ce8..3fdb066 100644
--- a/gcc11.changes
+++ b/gcc11.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Fri May  5 15:04:54 UTC 2023 - Dominique Leuenberger <dimstar@opensuse.org>
+
+- Add _multibuild to define 2nd spec file as additional flavor.
+  Eliminates the need for source package links in OBS.
+
 -------------------------------------------------------------------
 Tue Dec 27 10:41:18 UTC 2022 - Ludwig Nussel <lnussel@suse.com>