c96c595c78
- Create rpi/patches/ directory with multi-strategy patching - Patch tries: patch file → sed → Python regex → already-patched detection - Fix jpegio patch to handle multiple -m64 occurrences - Update docs to use wget instead of curl|bash (stdin conflict with read) - Update SSH examples to use admin@stegasoo.local 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
58 lines
1.4 KiB
Markdown
58 lines
1.4 KiB
Markdown
# RPi Patches
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This directory contains patches for dependencies that need modifications to build on ARM64.
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## Structure
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```
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patches/
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<package>/
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arm64.patch # Standard unified diff patch file
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apply-patch.sh # Script with fallback strategies
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```
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## How It Works
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The `apply-patch.sh` script tries multiple strategies in order:
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1. **Patch file** - Apply the `.patch` file using `patch -p1`
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2. **Sed fallback** - Use sed for simple string replacements
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3. **Python fallback** - Use regex for flexible pattern matching
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This layered approach handles:
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- Exact matches (patch file works)
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- Minor upstream changes (sed catches variations)
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- Significant changes (Python regex is most flexible)
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- Already patched files (detected and skipped)
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## Adding a New Patch
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1. Create a directory: `patches/<package>/`
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2. Create the patch file: `git diff > arm64.patch`
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3. Create `apply-patch.sh` with appropriate fallback logic
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4. Update `setup.sh` to call the patch script
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## jpegio Patch
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The jpegio library includes x86-specific `-m64` compiler flags that fail on ARM64.
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The patch removes these flags by replacing:
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```python
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cargs.append('-m64')
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```
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with:
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```python
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pass # ARM64: removed x86-specific -m64 flag
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```
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## Updating Patches
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When upstream changes break a patch:
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1. Clone the new version
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2. Make the necessary modifications
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3. Generate a new patch: `diff -u original modified > arm64.patch`
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4. Test on a fresh Pi install
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