c2pa-python: Carry patches over to version 0.38.1

Both 0.38.0 patches still apply unchanged to v0.38.1.

Author: luhenry

patches/c2pa-python/0.38.1/0001-add-riscv64-to-the-platform-identifier-tables.patch

@@ -0,0 +1,81 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Ludovic Henry <git@ludovic.dev>
+Date: Sat, 12 Sep 2026 11:16:12 +0200
+Subject: [PATCH 1/2] add riscv64 to the platform-identifier tables
+
+Upstream-Status: To upstream [not yet submitted; python-wheels does not open issues/PRs on third-party repos]
+
+get_platform_identifier() (setup.py, used by bdist_wheel to pick the
+artifacts/ subfolder to copy into the wheel) and its runtime counterpart
+in src/c2pa/lib.py both fall through to the x86_64-unknown-linux-gnu
+branch on a native riscv64 host, since neither platform.machine() check
+recognises 'riscv64'. Add a riscv64gc-unknown-linux-gnu branch to each,
+plus the corresponding PLATFORM_EXTENSIONS/PLATFORM_FOLDERS entries and
+get_current_platform()'s linux_riscv64 case, matching the existing
+aarch64 handling.
+
+Signed-off-by: Ludovic Henry <git@ludovic.dev>
+---
+ setup.py        | 6 ++++++
+ src/c2pa/lib.py | 3 +++
+ 2 files changed, 9 insertions(+)
+
+diff --git a/setup.py b/setup.py
+index ddf6e98..8c66a90 100644
+--- a/setup.py
++++ b/setup.py
+@@ -33,6 +33,7 @@ PLATFORM_EXTENSIONS = {
+     'apple-darwin': 'dylib', # universal
+     'linux_x86_64': 'so',
+     'linux_aarch64': 'so',
++    'linux_riscv64': 'so',
+ }
+ 
+ # Based on what c2pa-rs repo publishes
+@@ -44,6 +45,7 @@ PLATFORM_FOLDERS = {
+     'aarch64-pc-windows-msvc': 'dll',
+     'x86_64-unknown-linux-gnu': 'so',
+     'aarch64-unknown-linux-gnu': 'so',
++    'riscv64gc-unknown-linux-gnu': 'so',
+ }
+ 
+ # Directory structure
+@@ -86,6 +88,8 @@ def get_platform_identifier(target_arch=None) -> str:
+     elif system == "linux":
+         if target_arch == "aarch64" or platform.machine() == "aarch64":
+             return "aarch64-unknown-linux-gnu"
++        elif target_arch == "riscv64" or platform.machine() == "riscv64":
++            return "riscv64gc-unknown-linux-gnu"
+         else:
+             return "x86_64-unknown-linux-gnu"
+     else:
+@@ -115,6 +119,8 @@ def get_current_platform():
+     else:  # Linux
+         if platform.machine() == "aarch64":
+             return "linux_aarch64"
++        elif platform.machine() == "riscv64":
++            return "linux_riscv64"
+         return "linux_x86_64"
+ 
+ def copy_platform_libraries(platform_name, clean_first=False):
+diff --git a/src/c2pa/lib.py b/src/c2pa/lib.py
+index be6353f..17ecbff 100644
+--- a/src/c2pa/lib.py
++++ b/src/c2pa/lib.py
+@@ -27,6 +27,7 @@ class CPUArchitecture(Enum):
+     AARCH64 = "aarch64"
+     X86_64 = "x86_64"
+     ARM64 = "arm64"
++    RISCV64 = "riscv64"
+ 
+ 
+ def get_platform_identifier() -> str:
+@@ -61,6 +62,8 @@ def get_platform_identifier() -> str:
+     elif system == "linux":
+         if _get_architecture() in [CPUArchitecture.ARM64.value, CPUArchitecture.AARCH64.value]:
+             return "aarch64-unknown-linux-gnu"
++        elif _get_architecture() == CPUArchitecture.RISCV64.value:
++            return "riscv64gc-unknown-linux-gnu"
+         return "x86_64-unknown-linux-gnu"
+     else:
+         raise ValueError(f"Unsupported operating system: {system}")

patches/c2pa-python/0.38.1/0002-ship-the-project-s-own-LICENSE-MIT-and-LICENSE-APACH.patch

@@ -0,0 +1,29 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Ludovic Henry <git@ludovic.dev>
+Date: Sat, 12 Sep 2026 11:16:20 +0200
+Subject: [PATCH 2/2] ship the project's own LICENSE-MIT and LICENSE-APACHE in
+ the wheel
+
+Upstream-Status: To upstream [not yet submitted; python-wheels does not open issues/PRs on third-party repos]
+
+[tool.setuptools] overrides license-files to an empty list, so every
+published wheel (all platforms, not just riscv64) carries no licence
+text at all despite the project being dual MIT/Apache-2.0 licensed.
+Point the list at the two licence files already at the project root
+instead of disabling it outright.
+
+Signed-off-by: Ludovic Henry <git@ludovic.dev>
+---
+ pyproject.toml | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/pyproject.toml b/pyproject.toml
+index 7620ff9..00602da 100644
+--- a/pyproject.toml
++++ b/pyproject.toml
+@@ -32,4 +32,4 @@ download-artifacts = "c2pa.build:download_artifacts"
+ 
+ # Workaround to prevent setuptools from automatically including invalid metadata
+ [tool.setuptools]
+-license-files = []
++license-files = ["LICENSE-MIT", "LICENSE-APACHE"]