From 90d82c3cd02434e00b76ecf719fdf11b06e7b6be Mon Sep 17 00:00:00 2001
From: Andreas Baumann <mail@andreasbaumann.cc>
Date: Wed, 23 Oct 2019 20:45:46 +0200
Subject: extra/rust: first try to build 1.38 with 1.38 from bootstrapping
 repos

---
 extra/rust/PKGBUILD          |  35 ++++++++++++++++++++++++++++-------
 extra/rust/config.toml.patch | Bin 693 -> 660 bytes
 extra/rust/watcher.sh        |  25 +++++++++++++++++++++++++
 3 files changed, 53 insertions(+), 7 deletions(-)
 create mode 100755 extra/rust/watcher.sh

diff --git a/extra/rust/PKGBUILD b/extra/rust/PKGBUILD
index 1871ee85..ac7f0b37 100644
--- a/extra/rust/PKGBUILD
+++ b/extra/rust/PKGBUILD
@@ -6,7 +6,7 @@
 # see https://github.com/rust-lang/rust/issues/60294
 
 source+=(config.toml.patch)
-sha256sums+=('fcd8125f57295537a4f775c5b1966e548d9ac453fce513061d39957a1d0cfa45')
+sha256sums+=('42e861ba90335d0e2e666e10b12d9ff85ea1bdb711176fb3c09e92375e193660')
 
 eval "$(
   declare -f prepare | \
@@ -17,7 +17,7 @@ eval "$(
 
 # stop insanity of nproc (see FS#62952)
 eval "$(
-  declare -f build | \
+  declare -f package_rust | \
     sed '
       s/-j"$(nproc)"/-j1/
     '
@@ -29,12 +29,33 @@ if [ "${CARCH}" != 'pentium4' ]; then
       sed '
         $ i sed -i "s/pentium4/pentium3/g" "$srcdir/rustc-$pkgver-src/vendor/rustc-ap-rustc_target/spec/i686_unknown_linux_gnu.rs"
         $ i sed -i "s/pentium4/pentium3/g" "$srcdir/rustc-$pkgver-src/src/librustc_target/spec/i686_unknown_linux_gnu.rs"
-        $ i sed -i "s/254a116e0cfbce81d1d38ddd59e1086228332746ae8916647b990dd8226079d3/30594a90c83b496630d0b8d80ce2f93671ab6afedadcdc79afd832f4dfe499fd/g" "$srcdir/rustc-$pkgver-src/vendor/rustc-ap-rustc_target/.cargo-checksum.json"
+        $ i sed -i "s/a75a6025d7e3424edf9baf3039056c0f8eea157631a175d00ac5a218aa54b510/484bf8be15015b330fa9a97b6dabb8c7627e59d5cddb2dd0e83478749f8aabad/g" "$srcdir/rustc-$pkgver-src/vendor/rustc-ap-rustc_target/.cargo-checksum.json"
       '
   )"
 fi
 
-# use binary rust-bin instead of rust (till we can bootstrap rust on IA-32)
-# rust is ok on pentium4 but broken on i686 in bootstrap!
-makedepends=(${makedepends[@]//rust/})
-makedepends+=('rust-bin')
+# Don't move lib32 support into rust32-lib, we are on 32-bit in the end
+# and don't draw a symlink to 64-bit libraries (but to 32-bit instead)
+eval "$(
+  declare -f package_rust | \
+    sed '
+      /mv.*i686-unknown-linux-gnu.*/d
+      /ln /s/x86_64-unknown-linux-gnu/i686-unknown-linux-gnu/g
+    '
+)"
+
+# watch for files changing which need patching during the x.py craziness!
+# currently this is duplicate U1024 and P1024 types (this is currently needed
+# for i686 and 1.38.0)
+source+=('watcher.sh')
+sha256sums+=('a37ef742e079c7f7e80297bdb97115808b48f77fd92571468853de5cbd7ee800')
+
+# Enable on demand, if your previous rust is broken, see also build-support and AUR
+# for rust-bin.
+#makedepends=(${makedepends[@]//rust/})
+#makedepends+=('rust-bin')
+
+# links run away in upstream rust, we take extra and not trunk, is fixed in trunk upstream
+source[2]="http://releases.llvm.org/$_llvm_ver/compiler-rt-$_llvm_ver.src.tar.xz"
+source[3]="http://releases.llvm.org/$_llvm_ver/compiler-rt-$_llvm_ver.src.tar.xz.sig"
+sha256sums[2]="56e4cd96dd1d8c346b07b4d6b255f976570c6f2389697347a6c3dcb9e820d10e"
diff --git a/extra/rust/config.toml.patch b/extra/rust/config.toml.patch
index 6488342b..8d0762cd 100644
Binary files a/extra/rust/config.toml.patch and b/extra/rust/config.toml.patch differ
diff --git a/extra/rust/watcher.sh b/extra/rust/watcher.sh
new file mode 100755
index 00000000..544c3712
--- /dev/null
+++ b/extra/rust/watcher.sh
@@ -0,0 +1,25 @@
+#!/bin/sh
+
+term() {
+  echo "--> Got SIGTERM"
+  echo "--> killing inotifywait with PID $inotifywait"
+  kill -TERM "$inotifywait"
+}
+
+srcdir="$1"
+
+trap term SIGTERM
+
+inotifywait -mr -e close_write --format %w%f $srcdir | while read -r FILE; do
+  case "$FILE" in
+    *consts.rs)
+      echo "--> patching $FILE"
+      sed -i '/pub type U1024/d;/pub type P1024/d' $FILE
+      echo "--> finished patching $FILE"
+      ;;
+  esac
+done &
+inotifywait=$(ps -ef | grep inotifywait | grep -v grep | tr -s ' ' | cut -d ' ' -f2)
+echo "--> waiting for inotifywait $inotifywait"
+wait "$inotifywait"
+echo "--> watcher terminated"
-- 
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