Merge branch 'fix-linux-build'

.github/build/linux/Dockerfile

@@ -3,7 +3,8 @@ FROM quay.io/pypa/$BASE
 
 ARG UID=1000
 ARG GID=$UID
-ENV PATH="/opt/python/cp36-cp36m/bin:${PATH}"
+# Highest version supported by manylinux1:
+ENV PATH="/opt/python/cp39-cp39/bin:${PATH}"
 
 RUN groupadd -o -g $GID runner && \
     useradd -o -u $UID -g $GID runner && \

.github/build/linux/cpymad.sh

@@ -12,7 +12,7 @@
 set -ex
 
 # Build variables:
-export MADXDIR=$(readlink -nf "$1")
+export MADXDIR="$(readlink -nf "${1:-/mnt/dist/MAD-X}")"
 export X11=0 BLAS=0 LAPACK=0
 export CFLAGS="-fno-lto"
 export LDFLAGS="-fno-lto"

.github/build/linux/madx.sh

@@ -5,21 +5,22 @@
 #
 # Arguments:
 #   <SRCDIR>: root directory of MAD-X sources
-#
-# Outputs:
-#   <SRCDIR>/build: cmake build directory
-#   <SRCDIR>/dist:  MAD-X installation directory (binary distribution)
+#   <BUILDDIR>: cmake build directory
+#   <INSTALLDIR>: MAD-X installation directory (binary distribution)
 set -ex
 
-cd "$1"
-mkdir -p build
-cd build
+SRCDIR="$(readlink -nm "${1:-/mnt/src/MAD-X}")"
+BUILDDIR="$(readlink -nm "${2:-/mnt/build/MAD-X}")"
+INSTALLDIR="$(readlink -nm "${3:-/mnt/dist/MAD-X}")"
+
+mkdir -p "$BUILDDIR"
+cd "$BUILDDIR"
 
 if [[ ! -f CMakeCache.txt ]]; then
-    cmake .. \
+    cmake "$SRCDIR" \
         -DBUILD_SHARED_LIBS=OFF \
         -DMADX_STATIC=ON \
-        -DCMAKE_INSTALL_PREFIX=../dist \
+        -DCMAKE_INSTALL_PREFIX="$INSTALLDIR" \
         -DCMAKE_BUILD_TYPE=Release \
         -DCMAKE_C_FLAGS="-fvisibility=hidden" \
         -DCMAKE_CXX_FLAGS="-fvisibility=hidden" \

.github/workflows/build.yml

@@ -65,7 +65,7 @@ jobs:
             -w /mnt \
             -v `pwd`:/mnt \
             builder \
-            .github/build/linux/madx.sh src/MAD-X
+            .github/build/linux/madx.sh src/MAD-X build/MAD-X dist/MAD-X
         shell: bash
 
       - name: Build cpymad wheels
@@ -74,14 +74,16 @@ jobs:
             -w /mnt \
             -v `pwd`:/mnt \
             builder \
-            .github/build/linux/cpymad.sh src/MAD-X/dist
+            .github/build/linux/cpymad.sh dist/MAD-X
         shell: bash
 
       - name: Upload cpymad wheels
         uses: actions/upload-artifact@v4
         with:
           name: dist-linux-${{ matrix.base }}
-          path: dist
+          path: |
+            dist/
+            !dist/MAD-X
 
   build_windows:
     name: "Build: Windows"

pyproject.toml

@@ -57,7 +57,7 @@ optional-dependencies.dev = [
 [build-system]
 build-backend = "setuptools.build_meta"
 requires = [
-    "setuptools >= 61.0",
+    "setuptools[core] >= 61.0",
     "cython>=3.1.0a1 ; python_version >= '3.13'",   # Cython3.1 needed for free-threaded python
     "cython<3        ; python_version  < '3.8'",    # Cython3.1 dropped support for python<3.8
     "cython          ; python_version >= '3.8' and python_version < '3.13'", # no particular requirements