From 6be367e58fdc055072653186473c64b2ec091d03 Mon Sep 17 00:00:00 2001
From: Gianfranco Costamagna <costamagnagianfranco@yahoo.it>
Date: Fri, 18 Aug 2023 08:38:37 +0200
Subject: [PATCH] Disable unwind on mips64el, fixing FTBFS

---
 debian/control    | 6 +++---
 debian/control.in | 6 +++---
 debian/rules      | 9 ++++++++-
 3 files changed, 14 insertions(+), 7 deletions(-)

diff --git a/debian/control b/debian/control
index 9664cd9b..13fa753d 100644
--- a/debian/control
+++ b/debian/control
@@ -689,7 +689,7 @@ Section: libdevel
 Architecture: any
 Multi-Arch: same
 Depends: libc++1-16 (= ${binary:Version}), ${misc:Depends},
- libunwind-16-dev [amd64 arm64 armhf i386 mips64el ppc64el ppc64 riscv64]
+ libunwind-16-dev [amd64 arm64 armhf i386 ppc64el ppc64 riscv64]
 Breaks: libc++-dev (<< 44)
 Provides: libc++-x.y-dev
 Conflicts: libc++-x.y-dev
@@ -829,7 +829,7 @@ Description: OpenCL C language implementation - development files
 
 Package: libunwind-16
 Section: libs
-Architecture: amd64 arm64 armhf i386 mips64el ppc64el ppc64 riscv64
+Architecture: amd64 arm64 armhf i386 ppc64el ppc64 riscv64
 Multi-Arch: same
 Depends: ${shlibs:Depends},
  ${misc:Depends}
@@ -846,7 +846,7 @@ Description: production-quality unwinder
 
 Package: libunwind-16-dev
 Section: libdevel
-Architecture: amd64 arm64 armhf i386 mips64el ppc64el ppc64 riscv64
+Architecture: amd64 arm64 armhf i386 ppc64el ppc64 riscv64
 Multi-Arch: same
 Depends:
  ${misc:Depends},
diff --git a/debian/control.in b/debian/control.in
index 5b0eaf10..8b55e308 100644
--- a/debian/control.in
+++ b/debian/control.in
@@ -689,7 +689,7 @@ Section: libdevel
 Architecture: any
 Multi-Arch: same
 Depends: libc++1-@LLVM_VERSION@ (= ${binary:Version}), ${misc:Depends},
- libunwind-@LLVM_VERSION@-dev [amd64 arm64 armhf i386 mips64el ppc64el ppc64 riscv64]
+ libunwind-@LLVM_VERSION@-dev [amd64 arm64 armhf i386 ppc64el ppc64 riscv64]
 Breaks: libc++-dev (<< 44)
 Provides: libc++-x.y-dev
 Conflicts: libc++-x.y-dev
@@ -829,7 +829,7 @@ Description: OpenCL C language implementation - development files
 
 Package: libunwind-@LLVM_VERSION@
 Section: libs
-Architecture: amd64 arm64 armhf i386 mips64el ppc64el ppc64 riscv64
+Architecture: amd64 arm64 armhf i386 ppc64el ppc64 riscv64
 Multi-Arch: same
 Depends: ${shlibs:Depends},
  ${misc:Depends}
@@ -846,7 +846,7 @@ Description: production-quality unwinder
 
 Package: libunwind-@LLVM_VERSION@-dev
 Section: libdevel
-Architecture: amd64 arm64 armhf i386 mips64el ppc64el ppc64 riscv64
+Architecture: amd64 arm64 armhf i386 ppc64el ppc64 riscv64
 Multi-Arch: same
 Depends:
  ${misc:Depends},
diff --git a/debian/rules b/debian/rules
index 2a1c3766..f1123ee0 100755
--- a/debian/rules
+++ b/debian/rules
@@ -221,6 +221,13 @@ ifneq (,$(filter $(DEB_HOST_ARCH),s390x))
   LIBCXX_USE_COMPILER_RT := OFF
 endif
 
+ifneq (,$(filter $(DEB_HOST_ARCH),mips64el))
+  STAGE_ALL_CMAKE_EXTRA += -DCOMPILER_RT_DEFAULT_TARGET_ONLY=ON
+  STAGE_ALL_CMAKE_EXTRA += -DCOMPILER_RT_BUILD_BUILTINS=OFF
+  COMPILER_RT_USE_BUILTINS_LIBRARY := OFF
+  LIBCXX_USE_COMPILER_RT := OFF
+endif
+
 ifneq (,$(filter $(DEB_HOST_ARCH),x32))
   STAGE_ALL_CMAKE_EXTRA += -DLLVM_HOST_TRIPLE=x86_64-linux-gnux32
   STAGE_ALL_CMAKE_EXTRA += -DLLVM_DEFAULT_TARGET_TRIPLE=x86_64-linux-gnux32
@@ -306,7 +313,7 @@ endif
 
 # Enable libunwind (or not)
 LIBUNWIND_ENABLE=yes
-ifneq (,$(filter $(DEB_HOST_ARCH), s390x armel m68k mipsel hurd-i386 powerpc sparc sparc64 x32))
+ifneq (,$(filter $(DEB_HOST_ARCH), s390x armel m68k mipsel mips64el hurd-i386 powerpc sparc sparc64 x32))
   LIBUNWIND_ENABLE=no
 # do not use compiler-rt builtins for libcxx (libcxxabi) when libunwind is
 # disabled since the gnu implementation in libgcc_s will then be required