gcc: fix darwin building

- disable bootstrap builds on Darwin
- remove xcrun calls
- check if patchelf is available before using
- apply darwin patch for gcc4.9
- fixes #16047
- fixes #14812

pkgs/development/compilers/gcc/4.6/default.nix

@@ -170,7 +170,7 @@ let version = "4.6.4";
       "-stage-final";
     crossNameAddon = if cross != null then "-${cross.config}" + stageNameAddon else "";
 
-    bootstrap = cross == null && !stdenv.isArm && !stdenv.isMips;
+    bootstrap = cross == null && !stdenv.isArm && !stdenv.isMips && !stdenv.isDarwin;
 
 in
 

pkgs/development/compilers/gcc/4.8/default.nix

@@ -70,7 +70,8 @@ let version = "4.8.5";
       # The GNAT Makefiles did not pay attention to CFLAGS_FOR_TARGET for its
       # target libraries and tools.
       ++ optional langAda ../gnat-cflags.patch
-      ++ optional langFortran ../gfortran-driving.patch;
+      ++ optional langFortran ../gfortran-driving.patch
+      ++ optional stdenv.isDarwin ../gfortran-darwin-NXConstStr.patch;
 
     javaEcj = fetchurl {
       # The `$(top_srcdir)/ecj.jar' file is automatically picked up at
@@ -197,7 +198,7 @@ let version = "4.8.5";
     stageNameAddon = if crossStageStatic then "-stage-static" else "-stage-final";
     crossNameAddon = if cross != null then "-${cross.config}" + stageNameAddon else "";
 
-    bootstrap = cross == null && !stdenv.isArm && !stdenv.isMips;
+    bootstrap = cross == null && !stdenv.isArm && !stdenv.isMips && !stdenv.isDarwin;
 
 in
 
@@ -304,15 +305,6 @@ stdenv.mkDerivation ({
     export LDFLAGS_FOR_TARGET="-Wl,-rpath,$prefix/lib/amd64 $LDFLAGS_FOR_TARGET"
     export CXXFLAGS_FOR_TARGET="-Wl,-rpath,$prefix/lib/amd64 $CXXFLAGS_FOR_TARGET"
     export CFLAGS_FOR_TARGET="-Wl,-rpath,$prefix/lib/amd64 $CFLAGS_FOR_TARGET"
-  '' + stdenv.lib.optionalString stdenv.isDarwin ''
-    if SDKROOT=$(/usr/bin/xcrun --show-sdk-path); then
-      configureFlagsArray+=(--with-native-system-header-dir=$SDKROOT/usr/include)
-      makeFlagsArray+=( \
-       CFLAGS_FOR_BUILD=-F$SDKROOT/System/Library/Frameworks \
-       CFLAGS_FOR_TARGET=-F$SDKROOT/System/Library/Frameworks \
-       FLAGS_FOR_TARGET=-F$SDKROOT/System/Library/Frameworks \
-      )
-    fi
   '';
 
   dontDisableStatic = true;

pkgs/development/compilers/gcc/4.9/default.nix

@@ -199,7 +199,7 @@ let version = "4.9.3";
     stageNameAddon = if crossStageStatic then "-stage-static" else "-stage-final";
     crossNameAddon = if cross != null then "-${cross.config}" + stageNameAddon else "";
 
-  bootstrap = cross == null;
+  bootstrap = cross == null && !stdenv.isDarwin;
 
 in
 
@@ -307,15 +307,6 @@ stdenv.mkDerivation ({
     export LDFLAGS_FOR_TARGET="-Wl,-rpath,$prefix/lib/amd64 $LDFLAGS_FOR_TARGET"
     export CXXFLAGS_FOR_TARGET="-Wl,-rpath,$prefix/lib/amd64 $CXXFLAGS_FOR_TARGET"
     export CFLAGS_FOR_TARGET="-Wl,-rpath,$prefix/lib/amd64 $CFLAGS_FOR_TARGET"
-  '' + stdenv.lib.optionalString stdenv.isDarwin ''
-    if SDKROOT=$(/usr/bin/xcrun --show-sdk-path); then
-      configureFlagsArray+=(--with-native-system-header-dir=$SDKROOT/usr/include)
-      makeFlagsArray+=( \
-       CFLAGS_FOR_BUILD=-F$SDKROOT/System/Library/Frameworks \
-       CFLAGS_FOR_TARGET=-F$SDKROOT/System/Library/Frameworks \
-       FLAGS_FOR_TARGET=-F$SDKROOT/System/Library/Frameworks \
-      )
-    fi
   ''
   + stdenv.lib.optionalString (langJava || langGo) ''
     export lib=$out;

pkgs/development/compilers/gcc/5/default.nix

@@ -198,7 +198,7 @@ let version = "5.3.0";
     stageNameAddon = if crossStageStatic then "-stage-static" else "-stage-final";
     crossNameAddon = if cross != null then "-${cross.config}" + stageNameAddon else "";
 
-  bootstrap = cross == null;
+  bootstrap = cross == null && !stdenv.isDarwin;
 
 in
 
@@ -306,15 +306,6 @@ stdenv.mkDerivation ({
     export LDFLAGS_FOR_TARGET="-Wl,-rpath,$prefix/lib/amd64 $LDFLAGS_FOR_TARGET"
     export CXXFLAGS_FOR_TARGET="-Wl,-rpath,$prefix/lib/amd64 $CXXFLAGS_FOR_TARGET"
     export CFLAGS_FOR_TARGET="-Wl,-rpath,$prefix/lib/amd64 $CFLAGS_FOR_TARGET"
-  '' + stdenv.lib.optionalString stdenv.isDarwin ''
-    if SDKROOT=$(/usr/bin/xcrun --show-sdk-path); then
-      configureFlagsArray+=(--with-native-system-header-dir=$SDKROOT/usr/include)
-      makeFlagsArray+=( \
-       CFLAGS_FOR_BUILD=-F$SDKROOT/System/Library/Frameworks \
-       CFLAGS_FOR_TARGET=-F$SDKROOT/System/Library/Frameworks \
-       FLAGS_FOR_TARGET=-F$SDKROOT/System/Library/Frameworks \
-      )
-    fi
   '';
 
   dontDisableStatic = true;

pkgs/development/compilers/gcc/6/default.nix

@@ -198,7 +198,7 @@ let version = "6.1.0";
     stageNameAddon = if crossStageStatic then "-stage-static" else "-stage-final";
     crossNameAddon = if cross != null then "-${cross.config}" + stageNameAddon else "";
 
-  bootstrap = cross == null;
+  bootstrap = cross == null && !stdenv.isDarwin;
 
 in
 
@@ -306,15 +306,6 @@ stdenv.mkDerivation ({
     export LDFLAGS_FOR_TARGET="-Wl,-rpath,$prefix/lib/amd64 $LDFLAGS_FOR_TARGET"
     export CXXFLAGS_FOR_TARGET="-Wl,-rpath,$prefix/lib/amd64 $CXXFLAGS_FOR_TARGET"
     export CFLAGS_FOR_TARGET="-Wl,-rpath,$prefix/lib/amd64 $CFLAGS_FOR_TARGET"
-  '' + stdenv.lib.optionalString stdenv.isDarwin ''
-    if SDKROOT=$(/usr/bin/xcrun --show-sdk-path); then
-      configureFlagsArray+=(--with-native-system-header-dir=$SDKROOT/usr/include)
-      makeFlagsArray+=( \
-       CFLAGS_FOR_BUILD=-F$SDKROOT/System/Library/Frameworks \
-       CFLAGS_FOR_TARGET=-F$SDKROOT/System/Library/Frameworks \
-       FLAGS_FOR_TARGET=-F$SDKROOT/System/Library/Frameworks \
-      )
-    fi
   '';
 
   dontDisableStatic = true;

pkgs/development/compilers/gcc/builder.sh

@@ -229,19 +229,21 @@ postInstall() {
     # More dependencies with the previous gcc or some libs (gccbug stores the build command line)
     rm -rf $out/bin/gccbug
 
-    # Take out the bootstrap-tools from the rpath, as it's not needed at all having $out
-    for i in $(find "$out"/libexec/gcc/*/*/* -type f -a \! -name '*.la'); do
-        PREV_RPATH=`patchelf --print-rpath "$i"`
-        NEW_RPATH=`echo "$PREV_RPATH" | sed 's,:[^:]*bootstrap-tools/lib,,g'`
-        patchelf --set-rpath "$NEW_RPATH" "$i" && echo OK
-    done
-
-    # For some reason the libs retain RPATH to $out
-    for i in "$lib"/lib/{libtsan,libasan,libubsan}.so.*.*.*; do
-        PREV_RPATH=`patchelf --print-rpath "$i"`
-        NEW_RPATH=`echo "$PREV_RPATH" | sed "s,:${out}[^:]*,,g"`
-        patchelf --set-rpath "$NEW_RPATH" "$i" && echo OK
-    done
+    if type "patchelf"; then
+	# Take out the bootstrap-tools from the rpath, as it's not needed at all having $out
+	for i in $(find "$out"/libexec/gcc/*/*/* -type f -a \! -name '*.la'); do
+            PREV_RPATH=`patchelf --print-rpath "$i"`
+            NEW_RPATH=`echo "$PREV_RPATH" | sed 's,:[^:]*bootstrap-tools/lib,,g'`
+            patchelf --set-rpath "$NEW_RPATH" "$i" && echo OK
+	done
+
+	# For some reason the libs retain RPATH to $out
+	for i in "$lib"/lib/{libtsan,libasan,libubsan}.so.*.*.*; do
+            PREV_RPATH=`patchelf --print-rpath "$i"`
+            NEW_RPATH=`echo "$PREV_RPATH" | sed "s,:${out}[^:]*,,g"`
+            patchelf --set-rpath "$NEW_RPATH" "$i" && echo OK
+	done
+    fi
 
     # Get rid of some "fixed" header files
     rm -rfv $out/lib/gcc/*/*/include-fixed/{root,linux}