Merge #11067: SmartOS updates

I amended some commits slightly.

pkgs/build-support/cc-wrapper/default.nix

@@ -145,7 +145,7 @@ stdenv.mkDerivation {
     + optionalString (stdenv.isSunOS && nativePrefix != "") ''
       # Solaris needs an additional ld wrapper.
       ldPath="${nativePrefix}/bin"
-      ld="$out/bin/ld-solaris"
+      exec="$ldPath/ld"
       wrap ld-solaris ${./ld-solaris-wrapper.sh}
     '')
 

pkgs/build-support/cc-wrapper/ld-solaris-wrapper.sh

@@ -6,7 +6,7 @@ set -u
 # I've also tried adding -z direct and -z lazyload, but it gave too many problems with C++ exceptions :'(
 # Also made sure libgcc would not be lazy-loaded, as suggested here: https://www.illumos.org/issues/2534#note-3
 #   but still no success.
-cmd="@prog@ -z ignore"
+cmd="@ld@ -z ignore"
 
 args=("$@");
 

pkgs/build-support/fetchgit/builder.sh

@@ -6,7 +6,7 @@ source $stdenv/setup
 
 header "exporting $url (rev $rev) into $out"
 
-$fetcher --builder --url "$url" --out "$out" --rev "$rev" \
+$SHELL $fetcher --builder --url "$url" --out "$out" --rev "$rev" \
   ${leaveDotGit:+--leave-dotGit} \
   ${deepClone:+--deepClone} \
   ${fetchSubmodules:+--fetch-submodules} \

pkgs/build-support/gcc-wrapper-old/utils.sh

@@ -14,6 +14,8 @@ badPath() {
     # the temporary build directory).
     if test "${p:0:1}" != "/"; then return 1; fi
     
+    @extraPathTests@
+
     # Otherwise, the path should refer to the store or some temporary
     # directory (including the build directory).
     test \

pkgs/build-support/setup-hooks/patch-shebangs.sh

@@ -19,12 +19,12 @@ patchShebangs() {
     local newInterpreterLine
 
     find "$dir" -type f -perm -0100 | while read f; do
-        if [ "$(head -1 "$f" | head -c +2)" != '#!' ]; then
+        if [ "$(head -1 "$f" | head -c+2)" != '#!' ]; then
             # missing shebang => not a script
             continue
         fi
 
-        oldInterpreterLine=$(head -1 "$f" | tail -c +3)
+        oldInterpreterLine=$(head -1 "$f" | tail -c+3)
         read -r oldPath arg0 args <<< "$oldInterpreterLine"
 
         if $(echo "$oldPath" | grep -q "/bin/env$"); then