Ticket #55382: clang-3.7_Portfile.diff

Portfile

@@ -17 +17 @@
 set llvm_version_no_dot 37
 name                    llvm-${llvm_version}
 revision                4
-subport                 clang-${llvm_version} { revision 5 }
+subport                 clang-${llvm_version} { revision 6 }
 set suffix              mp-${llvm_version}
 set sub_prefix          ${prefix}/libexec/llvm-${llvm_version}
 dist_subdir             llvm
@@ -417 +417 @@
         }
     }
 
+    variant libstdcxx description {-stdlib=macports-libstdc++ searches for MacPorts libstdc++} {
+
+        patchfiles-append 9001-macports-libstdcxx.diff
+
+        post-patch {
+            reinplace "s|@@MACPORTS_GCC_INCLUDE_DIR@@|${prefix}/include/gcc/c++|g" \
+                ${worksrcpath}/tools/clang/lib/Frontend/InitHeaderSearch.cpp
+            reinplace "s|@@MACPORTS_HOST_NAME@@|${build_arch}-apple-darwin${os.major}|g" \
+                ${worksrcpath}/tools/clang/lib/Frontend/InitHeaderSearch.cpp
+            reinplace "s|@@MACPORTS_libstdc++@@|${prefix}/lib/libgcc/libstdc++.6.dylib|g" \
+                ${worksrcpath}/tools/clang/lib/Driver/ToolChains.cpp
+
+            # GCC was built for ${build_arch}-apple-darwin${os.major}
+            # if GCC was also built universal, it has an extra include directory
+            # if ${build_arch} is 32-bit, there is an extra 64-bit subdirectory
+            # if ${build_arch} is 64-bit, there is an extra 32-bit subdirectory
+            # MacPorts GCC can not compile across platforms
+            switch ${build_arch} {
+                x86_64 {
+                    set gcc_subdirectory_ppc    ""
+                    set gcc_subdirectory_ppc64  "ppc64"
+                    set gcc_subdirectory_i386   "i386"
+                    set gcc_subdirectory_x86_64 ""
+                }
+                i386 {
+                    set gcc_subdirectory_ppc    ""
+                    set gcc_subdirectory_ppc64  "ppc64"
+                    set gcc_subdirectory_i386   ""
+                    set gcc_subdirectory_x86_64 "x86_64"
+                }
+                ppc64 {
+                    set gcc_subdirectory_ppc    "ppc"
+                    set gcc_subdirectory_ppc64  ""
+                    set gcc_subdirectory_i386   ""
+                    set gcc_subdirectory_x86_64 "x86_64"
+                }
+                ppc {
+                    set gcc_subdirectory_ppc    ""
+                    set gcc_subdirectory_ppc64  "ppc64"
+                    set gcc_subdirectory_i386   ""
+                    set gcc_subdirectory_x86_64 "x86_64"
+                }
+            }
+
+            reinplace "s|@@MACPORTS_GCC_SUBDIRECTORY_x86_64@@|${gcc_subdirectory_x86_64}|g" \
+                ${worksrcpath}/tools/clang/lib/Frontend/InitHeaderSearch.cpp
+            reinplace "s|@@MACPORTS_GCC_SUBDIRECTORY_i386@@|${gcc_subdirectory_i386}|g" \
+                ${worksrcpath}/tools/clang/lib/Frontend/InitHeaderSearch.cpp
+            reinplace "s|@@MACPORTS_GCC_SUBDIRECTORY_ppc64@@|${gcc_subdirectory_ppc64}|g" \
+                ${worksrcpath}/tools/clang/lib/Frontend/InitHeaderSearch.cpp
+            reinplace "s|@@MACPORTS_GCC_SUBDIRECTORY_ppc@@|${gcc_subdirectory_ppc}|g" \
+                ${worksrcpath}/tools/clang/lib/Frontend/InitHeaderSearch.cpp
+        }
+    }
+    default_variants +libstdcxx
+
     post-patch {
         reinplace "s|@CLANG_FORMAT_PATH@|${prefix}/bin/clang-format-${suffix}|g" \
             ${worksrcpath}/tools/clang/tools/clang-format/clang-format-bbedit.applescript \