1 files changed, 56 insertions, 0 deletions

diff --git a/gn/MAKEPKG b/gn/MAKEPKG
new file mode 100644
index 0000000..ce82d41
--- /dev/null
+++ b/gn/MAKEPKG
@@ -0,0 +1,56 @@
+#!/bin/mkpkg
+# description: GN meta-build system
+# url: https://gn.googlesource.com/gn
+# Depends on: python3 ninja clang
+name=gn
+version=0.2324
+_commit=304bbef6c7e9a86630c12986b99c8654eb7fe648
+release=1
+source=(https://gn.googlesource.com/gn/+archive/${_commit}.tar.gz)
+sha256sums=(
+    "63785159210399064a164aaabf2adcaf4289e068c68976cd7bffa3aa9fd14e6b"
+)
+
+build() {
+    cd "$SRC"
+    export CC=clang
+    export CXX=clang++
+    export AR=llvm-ar
+    export LDFLAGS="-fuse-ld=lld"
+
+    # Gentoo gn-gen-r8: comment out hardcoded -O3/-g, remove -pipe
+    sed -i "/cflags.append('-O3')/s/^/#/;
+            /cflags.append('-g')/s/^/#/;
+            /ldflags.append('-O3')/s/^/#/;
+            /options.no_strip/s/^/#/;
+            /'-pipe',/d;
+            /'-Wno-format',/d;
+            /'-Wno-strict-aliasing',/d" build/gen.py
+
+    # Fix ninja regen loop: the +archive tarball gives all files
+    # identical timestamps. Set them all to the past so gen.py
+    # outputs (build.ninja) will be strictly newer.
+    find . -type f -exec touch -t 200001010000 {} +
+
+    python3 build/gen.py \
+        --no-last-commit-position \
+        --no-static-libstdc++ \
+        --no-strip \
+        --allow-warnings
+    printf '%s\n' \
+        '#ifndef OUT_LAST_COMMIT_POSITION_H_' \
+        '#define OUT_LAST_COMMIT_POSITION_H_' \
+        '#define LAST_COMMIT_POSITION_NUM 2324' \
+        "#define LAST_COMMIT_POSITION \"2324 (${_commit})\"" \
+        '#endif' \
+        > out/last_commit_position.h
+
+    ninja -C out gn
+    install -Dm755 out/gn "$PKG/usr/bin/gn"
+}
+signify() {
+    untrusted comment: public key
+    RWTZ9IduCSQ/mL8337TEUinPwT92xFEUpD92hkS7IxcOnzTt9QdpohT3
+}
+
+# vim: filetype=sh