initial commit

.github/workflows/ci.yml

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+name: CI
+
+on:
+  push:
+    tags:
+      - BUILD-*
+
+jobs:
+  mac-job:
+    runs-on: macos-12
+    permissions:
+      contents: write
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          submodules: true
+      - run: ./build.sh
+      - name: Release
+        uses: softprops/action-gh-release@v1
+        if: startsWith(github.ref, 'refs/tags/')
+        with:
+          files: |
+            *.so

.gitmodules

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+[submodule "jbig2dec"]
+	path = jbig2dec
+	url = [email protected]:ArtifexSoftware/jbig2dec.git
+[submodule "caj2pdf"]
+	path = caj2pdf
+	url = [email protected]:caj2pdf/caj2pdf.git

build.sh

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+#!/bin/sh
+
+pushd jbig2dec
+cc  -I . -Wall -fPIC -shared -o ../libjbig2codec.so ../caj2pdf/lib/decode_jbig2data_x.cc \
+    jbig2.c jbig2_arith.c jbig2_arith_int.c jbig2_arith_iaid.c jbig2_huffman.c jbig2_hufftab.c jbig2_segment.c \
+    jbig2_page.c jbig2_symbol_dict.c jbig2_text.c jbig2_generic.c jbig2_refinement.c jbig2_mmr.c jbig2_halftone.c jbig2_image.c
+popd
+
+pushd caj2pdf/lib
+cc -Wall -fPIC --shared -o ../../libjbigdec.so jbigdec.cc JBigDecode.cc
+popd