gcc: Use platformFlags in crossConfigureFlags

A nice code deduplication

pkgs/development/compilers/gcc/4.5/default.nix

@@ -85,20 +85,9 @@ let version = "4.5.4";
         withFloat +
         withMode;
 
-    /* Cross-gcc settings */
-    gccArch = stdenv.lib.attrByPath [ "gcc" "arch" ] null targetPlatform;
-    gccCpu = stdenv.lib.attrByPath [ "gcc" "cpu" ] null targetPlatformt;
-    gccAbi = stdenv.lib.attrByPath [ "gcc" "abi" ] null targetPlatform;
-    withArch = if gccArch != null then " --with-arch=${gccArch}" else "";
-    withCpu = if gccCpu != null then " --with-cpu=${gccCpu}" else "";
-    withAbi = if gccAbi != null then " --with-abi=${gccAbi}" else "";
-    crossMingw = (targetPlatform != hostPlatform && targetPlatform.libc == "msvcrt");
-
     crossConfigureFlags =
       "--target=${targetPlatform.config}" +
-      withArch +
+      platformFlags +
-      withCpu +
-      withAbi +
       # Ensure that -print-prog-name is able to find the correct programs.
       " --with-as=${binutils}/bin/${targetPlatform.config}-as" +
       " --with-ld=${binutils}/bin/${targetPlatform.config}-ld" +

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

@@ -121,27 +121,9 @@ let version = "4.8.5";
     /* Cross-gcc settings */
     crossMingw = targetPlatform != hostPlatform && targetPlatform.libc == "msvcrt";
     crossDarwin = targetPlatform != hostPlatform && targetPlatform.libc == "libSystem";
-    crossConfigureFlags = let
+    crossConfigureFlags =
-        gccArch = targetPlatform.platform.gcc.arch or null;
-        gccCpu = targetPlatform.platform.gcc.cpu or null;
-        gccAbi = targetPlatform.platform.gcc.abi or null;
-        gccFpu = targetPlatform.platform.gcc.fpu or null;
-        gccFloat = targetPlatform.platform.gcc.float or null;
-        gccMode = targetPlatform.platform.gcc.mode or null;
-        withArch = if gccArch != null then " --with-arch=${gccArch}" else "";
-        withCpu = if gccCpu != null then " --with-cpu=${gccCpu}" else "";
-        withAbi = if gccAbi != null then " --with-abi=${gccAbi}" else "";
-        withFpu = if gccFpu != null then " --with-fpu=${gccFpu}" else "";
-        withFloat = if gccFloat != null then " --with-float=${gccFloat}" else "";
-        withMode = if gccMode != null then " --with-mode=${gccMode}" else "";
-      in
         "--target=${targetPlatform.config}" +
-        withArch +
+        platformFlags +
-        withCpu +
-        withAbi +
-        withFpu +
-        withFloat +
-        withMode +
         # Ensure that -print-prog-name is able to find the correct programs.
         " --with-as=${binutils}/bin/${targetPlatform.config}-as" +
         " --with-ld=${binutils}/bin/${targetPlatform.config}-ld" +

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

@@ -123,27 +123,9 @@ let version = "4.9.4";
     /* Cross-gcc settings */
     crossMingw = targetPlatform != hostPlatform && targetPlatform.libc == "msvcrt";
     crossDarwin = targetPlatform != hostPlatform && targetPlatform.libc == "libSystem";
-    crossConfigureFlags = let
+    crossConfigureFlags =
-        gccArch = targetPlatform.platform.gcc.arch or null;
-        gccCpu = targetPlatform.platform.gcc.cpu or null;
-        gccAbi = targetPlatform.platform.gcc.abi or null;
-        gccFpu = targetPlatform.platform.gcc.fpu or null;
-        gccFloat = targetPlatform.platform.gcc.float or null;
-        gccMode = targetPlatform.platform.gcc.mode or null;
-        withArch = if gccArch != null then " --with-arch=${gccArch}" else "";
-        withCpu = if gccCpu != null then " --with-cpu=${gccCpu}" else "";
-        withAbi = if gccAbi != null then " --with-abi=${gccAbi}" else "";
-        withFpu = if gccFpu != null then " --with-fpu=${gccFpu}" else "";
-        withFloat = if gccFloat != null then " --with-float=${gccFloat}" else "";
-        withMode = if gccMode != null then " --with-mode=${gccMode}" else "";
-      in
         "--target=${targetPlatform.config}" +
-        withArch +
+        platformFlags +
-        withCpu +
-        withAbi +
-        withFpu +
-        withFloat +
-        withMode +
         # Ensure that -print-prog-name is able to find the correct programs.
         " --with-as=${binutils}/bin/${targetPlatform.config}-as" +
         " --with-ld=${binutils}/bin/${targetPlatform.config}-ld" +

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

@@ -127,27 +127,9 @@ let version = "5.4.0";
     /* Cross-gcc settings */
     crossMingw = targetPlatform != hostPlatform && targetPlatform.libc == "msvcrt";
     crossDarwin = targetPlatform != hostPlatform && targetPlatform.libc == "libSystem";
-    crossConfigureFlags = let
+    crossConfigureFlags =
-        gccArch = targetPlatform.platform.gcc.arch or null;
-        gccCpu = targetPlatform.platform.gcc.cpu or null;
-        gccAbi = targetPlatform.platform.gcc.abi or null;
-        gccFpu = targetPlatform.platform.gcc.fpu or null;
-        gccFloat = targetPlatform.platform.gcc.float or null;
-        gccMode = targetPlatform.platform.gcc.mode or null;
-        withArch = if gccArch != null then " --with-arch=${gccArch}" else "";
-        withCpu = if gccCpu != null then " --with-cpu=${gccCpu}" else "";
-        withAbi = if gccAbi != null then " --with-abi=${gccAbi}" else "";
-        withFpu = if gccFpu != null then " --with-fpu=${gccFpu}" else "";
-        withFloat = if gccFloat != null then " --with-float=${gccFloat}" else "";
-        withMode = if gccMode != null then " --with-mode=${gccMode}" else "";
-      in
         "--target=${targetPlatform.config}" +
-        withArch +
+        platformFlags +
-        withCpu +
-        withAbi +
-        withFpu +
-        withFloat +
-        withMode +
         # Ensure that -print-prog-name is able to find the correct programs.
         " --with-as=${binutils}/bin/${targetPlatform.config}-as" +
         " --with-ld=${binutils}/bin/${targetPlatform.config}-ld" +

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

@@ -123,27 +123,9 @@ let version = "6.3.0";
     /* Cross-gcc settings */
     crossMingw = targetPlatform != hostPlatform && targetPlatform.libc == "msvcrt";
     crossDarwin = targetPlatform != hostPlatform && targetPlatform.libc == "libSystem";
-    crossConfigureFlags = let
+    crossConfigureFlags =
-        gccArch = targetPlatform.platform.gcc.arch or null;
-        gccCpu = targetPlatform.platform.gcc.cpu or null;
-        gccAbi = targetPlatform.platform.gcc.abi or null;
-        gccFpu = targetPlatform.platform.gcc.fpu or null;
-        gccFloat = targetPlatform.platform.gcc.float or null;
-        gccMode = targetPlatform.platform.gcc.mode or null;
-        withArch = if gccArch != null then " --with-arch=${gccArch}" else "";
-        withCpu = if gccCpu != null then " --with-cpu=${gccCpu}" else "";
-        withAbi = if gccAbi != null then " --with-abi=${gccAbi}" else "";
-        withFpu = if gccFpu != null then " --with-fpu=${gccFpu}" else "";
-        withFloat = if gccFloat != null then " --with-float=${gccFloat}" else "";
-        withMode = if gccMode != null then " --with-mode=${gccMode}" else "";
-      in
         "--target=${targetPlatform.config}" +
-        withArch +
+        platformFlags +
-        withCpu +
-        withAbi +
-        withFpu +
-        withFloat +
-        withMode +
         # Ensure that -print-prog-name is able to find the correct programs.
         " --with-as=${binutils}/bin/${targetPlatform.config}-as" +
         " --with-ld=${binutils}/bin/${targetPlatform.config}-ld" +

pkgs/development/compilers/gcc/7/default.nix

@@ -123,27 +123,9 @@ let version = "7.1.0";
     /* Cross-gcc settings */
     crossMingw = targetPlatform != hostPlatform && targetPlatform.libc == "msvcrt";
     crossDarwin = targetPlatform != hostPlatform && targetPlatform.libc == "libSystem";
-    crossConfigureFlags = let
+    crossConfigureFlags =
-        gccArch = targetPlatform.platform.gcc.arch or null;
-        gccCpu = targetPlatform.platform.gcc.cpu or null;
-        gccAbi = targetPlatform.platform.gcc.abi or null;
-        gccFpu = targetPlatform.platform.gcc.fpu or null;
-        gccFloat = targetPlatform.platform.gcc.float or null;
-        gccMode = targetPlatform.platform.gcc.mode or null;
-        withArch = if gccArch != null then " --with-arch=${gccArch}" else "";
-        withCpu = if gccCpu != null then " --with-cpu=${gccCpu}" else "";
-        withAbi = if gccAbi != null then " --with-abi=${gccAbi}" else "";
-        withFpu = if gccFpu != null then " --with-fpu=${gccFpu}" else "";
-        withFloat = if gccFloat != null then " --with-float=${gccFloat}" else "";
-        withMode = if gccMode != null then " --with-mode=${gccMode}" else "";
-      in
         "--target=${targetPlatform.config}" +
-        withArch +
+        platformFlags +
-        withCpu +
-        withAbi +
-        withFpu +
-        withFloat +
-        withMode +
         # Ensure that -print-prog-name is able to find the correct programs.
         " --with-as=${binutils}/bin/${targetPlatform.config}-as" +
         " --with-ld=${binutils}/bin/${targetPlatform.config}-ld" +

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

@@ -123,27 +123,9 @@ let version = "7-20170409";
     /* Cross-gcc settings */
     crossMingw = targetPlatform != hostPlatform && targetPlatform.libc == "msvcrt";
     crossDarwin = targetPlatform != hostPlatform && targetPlatform.libc == "libSystem";
-    crossConfigureFlags = let
+    crossConfigureFlags =
-        gccArch = targetPlatform.platform.gcc.arch or null;
-        gccCpu = targetPlatform.platform.gcc.cpu or null;
-        gccAbi = targetPlatform.platform.gcc.abi or null;
-        gccFpu = targetPlatform.platform.gcc.fpu or null;
-        gccFloat = targetPlatform.platform.gcc.float or null;
-        gccMode = targetPlatform.platform.gcc.mode or null;
-        withArch = if gccArch != null then " --with-arch=${gccArch}" else "";
-        withCpu = if gccCpu != null then " --with-cpu=${gccCpu}" else "";
-        withAbi = if gccAbi != null then " --with-abi=${gccAbi}" else "";
-        withFpu = if gccFpu != null then " --with-fpu=${gccFpu}" else "";
-        withFloat = if gccFloat != null then " --with-float=${gccFloat}" else "";
-        withMode = if gccMode != null then " --with-mode=${gccMode}" else "";
-      in
         "--target=${targetPlatform.config}" +
-        withArch +
+        platformFlags +
-        withCpu +
-        withAbi +
-        withFpu +
-        withFloat +
-        withMode +
         # Ensure that -print-prog-name is able to find the correct programs.
         " --with-as=${binutils}/bin/${targetPlatform.config}-as" +
         " --with-ld=${binutils}/bin/${targetPlatform.config}-ld" +