Take an ugly workaround to build with gcc 7

See https://bugs.llvm.org/show_bug.cgi?id=34140

debian/changelog

@@ -1,6 +1,8 @@
 llvm-toolchain-5.0 (1:5.0~+rc2-2) unstable; urgency=medium
 
   * Link LLDB with -latomic on powerpcspe (Closes: #872267)
+  * Take an ugly workaround to build with gcc 7
+    See https://bugs.llvm.org/show_bug.cgi?id=34140
 
  -- Sylvestre Ledru <sylvestre@debian.org>  Wed, 16 Aug 2017 09:57:56 +0200
 

debian/control

@@ -13,8 +13,7 @@ Build-Depends: debhelper (>= 9.0), flex, bison, dejagnu, tcl, expect,
     ocaml-findlib [amd64 arm64 armel armhf i386],
     libctypes-ocaml-dev [amd64 arm64 armel armhf i386],
     dh-ocaml [amd64 arm64 armel armhf i386],
-    g++-multilib [amd64 i386 kfreebsd-amd64 mips mips64 mips64el mipsel powerpc ppc64 s390 s390x sparc sparc64 x32],
-    g++-6
+    g++-multilib [amd64 i386 kfreebsd-amd64 mips mips64 mips64el mipsel powerpc ppc64 s390 s390x sparc sparc64 x32]
 Build-Conflicts: oprofile, ocaml, libllvm-3.4-ocaml-dev, libllvm-3.5-ocaml-dev,
   libllvm-3.8-ocaml-dev, libllvm-3.9-ocaml-dev
 Standards-Version: 4.0.0

debian/patches/gcc-7.1-workaround.diff

@@ -0,0 +1,79 @@
+Index: clang/include/clang/AST/DeclObjC.h
+===================================================================
+--- clang.orig/include/clang/AST/DeclObjC.h	(revision 311595)
++++ clang/include/clang/AST/DeclObjC.h	(working copy)
+@@ -413,12 +413,12 @@
+   /// Determines the family of this method.
+   ObjCMethodFamily getMethodFamily() const;
+ 
+-  bool isInstanceMethod() const { return IsInstance; }
++  bool isInstanceMethod() const LLVM_ATTRIBUTE_USED { return IsInstance; }
+   void setInstanceMethod(bool isInst) { IsInstance = isInst; }
+   bool isVariadic() const { return IsVariadic; }
+   void setVariadic(bool isVar) { IsVariadic = isVar; }
+ 
+-  bool isClassMethod() const { return !IsInstance; }
++  bool isClassMethod() const LLVM_ATTRIBUTE_USED { return !IsInstance; }
+ 
+   bool isPropertyAccessor() const { return IsPropertyAccessor; }
+   void setPropertyAccessor(bool isAccessor) { IsPropertyAccessor = isAccessor; }
+@@ -832,8 +832,8 @@
+             (OBJC_PR_retain | OBJC_PR_strong | OBJC_PR_copy));
+   }
+ 
+-  bool isInstanceProperty() const { return !isClassProperty(); }
+-  bool isClassProperty() const { return PropertyAttributes & OBJC_PR_class; }
++  bool isInstanceProperty() const LLVM_ATTRIBUTE_USED { return !isClassProperty(); }
++  bool isClassProperty() const LLVM_ATTRIBUTE_USED { return PropertyAttributes & OBJC_PR_class; }
+   ObjCPropertyQueryKind getQueryKind() const {
+     return isClassProperty() ? ObjCPropertyQueryKind::OBJC_PR_query_class :
+                                ObjCPropertyQueryKind::OBJC_PR_query_instance;
+@@ -1562,7 +1562,7 @@
+   /// \brief Test whether the given category is visible.
+   ///
+   /// Used in the \c visible_categories_iterator.
+-  static bool isVisibleCategory(ObjCCategoryDecl *Cat);
++  static bool isVisibleCategory(ObjCCategoryDecl *Cat) LLVM_ATTRIBUTE_USED;
+                         
+ public:
+   /// \brief Iterator that walks over the list of categories and extensions
+@@ -1598,7 +1598,7 @@
+   /// \brief Test whether the given category... is a category.
+   ///
+   /// Used in the \c known_categories_iterator.
+-  static bool isKnownCategory(ObjCCategoryDecl *) { return true; }
++  static bool isKnownCategory(ObjCCategoryDecl *) LLVM_ATTRIBUTE_USED { return true; }
+ 
+ public:
+   /// \brief Iterator that walks over all of the known categories and
+@@ -1632,7 +1632,7 @@
+   /// \brief Test whether the given category is a visible extension.
+   ///
+   /// Used in the \c visible_extensions_iterator.
+-  static bool isVisibleExtension(ObjCCategoryDecl *Cat);
++  static bool isVisibleExtension(ObjCCategoryDecl *Cat) LLVM_ATTRIBUTE_USED;
+ 
+ public:
+   /// \brief Iterator that walks over all of the visible extensions, skipping
+@@ -1668,7 +1668,7 @@
+   /// \brief Test whether the given category is an extension.
+   ///
+   /// Used in the \c known_extensions_iterator.
+-  static bool isKnownExtension(ObjCCategoryDecl *Cat);
++  static bool isKnownExtension(ObjCCategoryDecl *Cat) LLVM_ATTRIBUTE_USED;
+   
+ public:
+   /// \brief Iterator that walks over all of the known extensions.
+Index: clang/include/clang/ASTMatchers/ASTMatchersMacros.h
+===================================================================
+--- clang.orig/include/clang/ASTMatchers/ASTMatchersMacros.h	(revision 311595)
++++ clang/include/clang/ASTMatchers/ASTMatchersMacros.h	(working copy)
+@@ -54,7 +54,7 @@
+ /// defines a zero parameter function named DefineMatcher() that returns a
+ /// ReturnType object.
+ #define AST_MATCHER_FUNCTION(ReturnType, DefineMatcher)                        \
+-  inline ReturnType DefineMatcher##_getInstance();                             \
++  inline ReturnType DefineMatcher##_getInstance() LLVM_ATTRIBUTE_USED;         \
+   inline ReturnType DefineMatcher() {                                          \
+     return ::clang::ast_matchers::internal::MemoizedMatcher<                   \
+         ReturnType, DefineMatcher##_getInstance>::getInstance();               \

debian/patches/series

@@ -46,3 +46,4 @@ disable-path-test-failing.diff
 silent-amd-tet.diff
 disable-error-xray.diff
 lldb-disable-swig-error.diff
+gcc-7.1-workaround.diff

debian/rules

@@ -6,7 +6,7 @@ DEB_INST		:= $(CURDIR)/debian/tmp/
 GXX_VERSIONED_PACKAGE    := $(shell dpkg-query -W -f '$${Depends}' g++ | grep -o 'g++-[0-9][0-9.]*' | tail -n1 )
 GXX_VERSIONED_EXECUTABLE := $(shell dpkg -L $(GXX_VERSIONED_PACKAGE) | grep '/usr/bin/g++-[0-9][0-9.]*' | xargs ls -d | tail -n1 )
 GCC_VERSION              := $(subst /usr/bin/g++-,,$(GXX_VERSIONED_EXECUTABLE))
-GCC_VERSION	:= 6
+
 LLVM_VERSION	:= 5.0
 LLVM_VERSION_FULL := $(LLVM_VERSION).0