From 7f5012dd9496cd159add67bbea5779ad05a64d1b Mon Sep 17 00:00:00 2001
From: Guofang <uglycat@foxmail.com>
Date: Wed, 28 Oct 2026 12:45:17 +0800
Subject: [PATCH] Build GMP as a fat library to support older CPUs

--enable-fat selects the optimized code at run time, so the static
library also works on x86_64 CPUs without AVX, BMI2 or ADX. It is
ignored on architectures that do not support it, such as aarch64.

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
---
 alpine3.24/Dockerfile | 2 +-
 debian13/Dockerfile   | 2 +-
 rocky9/Dockerfile     | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/alpine3.24/Dockerfile b/alpine3.24/Dockerfile
index 10748ea..851ebf9 100644
--- a/alpine3.24/Dockerfile
+++ b/alpine3.24/Dockerfile
@@ -461,7 +461,7 @@ RUN --mount=type=bind,from=sources,source=gmp-6.3.0.tar.xz,target=/tmp/gmp.tar.x
     mkdir src \
     && tar --extract --xz --file=/tmp/gmp.tar.xz --directory=src --strip-components=1 \
     && cd src \
-    && CFLAGS="-fPIC -std=gnu17" ./configure --prefix=/usr/local --disable-shared --enable-static \
+    && CFLAGS="-fPIC -std=gnu17" ./configure --prefix=/usr/local --disable-shared --enable-static --enable-fat \
     && make --jobs="$(nproc)" \
     && make install \
     && cd .. \
diff --git a/debian13/Dockerfile b/debian13/Dockerfile
index 754cc44..a95ca9c 100644
--- a/debian13/Dockerfile
+++ b/debian13/Dockerfile
@@ -567,7 +567,7 @@ RUN --mount=type=bind,from=sources,source=gmp-6.3.0.tar.xz,target=/tmp/gmp.tar.x
     mkdir src \
     && tar --extract --xz --file=/tmp/gmp.tar.xz --directory=src --strip-components=1 \
     && cd src \
-    && CFLAGS=-fPIC ./configure --prefix=${PREFIX} --libdir=${PREFIX}/lib/$(gcc -dumpmachine) --disable-shared --enable-static \
+    && CFLAGS=-fPIC ./configure --prefix=${PREFIX} --libdir=${PREFIX}/lib/$(gcc -dumpmachine) --disable-shared --enable-static --enable-fat \
     && make --jobs="$(nproc)" \
     && make install \
     && cd .. \
diff --git a/rocky9/Dockerfile b/rocky9/Dockerfile
index 7c7656b..9355c72 100644
--- a/rocky9/Dockerfile
+++ b/rocky9/Dockerfile
@@ -547,7 +547,7 @@ RUN --mount=type=bind,from=sources,source=gmp-6.3.0.tar.xz,target=/tmp/gmp.tar.x
     mkdir src \
     && tar --extract --xz --file=/tmp/gmp.tar.xz --directory=src --strip-components=1 \
     && cd src \
-    && CFLAGS=-fPIC ./configure --prefix=/usr/local --libdir=/usr/local/lib64 --disable-shared --enable-static \
+    && CFLAGS=-fPIC ./configure --prefix=/usr/local --libdir=/usr/local/lib64 --disable-shared --enable-static --enable-fat \
     && make --jobs="$(nproc)" \
     && make install \
     && cd .. \