Migrate build system from autotools to CMake

- Update necpp_src submodule to master (feat/cmake-migration)
- Replace make -f Makefile.git && ./configure with cmake -B build && cmake --build build
- Add necpp_src/build/ to include_dirs for cmake-generated config.h
- Replace autoconf/automake/libtool deps with cmake in CI workflows

Author: tmolteno

.github/workflows/build-necpp-wheels.yml

@@ -30,19 +30,19 @@ jobs:
         if: runner.os == 'Linux'
         run: |
           sudo apt-get update
-          sudo apt-get install -y swig autoconf automake libtool
+          sudo apt-get install -y swig cmake
 
       - name: Install build dependencies (macOS)
         if: runner.os == 'macOS'
         run: |
-          brew install swig autoconf automake libtool
+          brew install swig cmake
 
       - name: Configure necpp_src
         shell: bash
         run: |
           cd necpp_src
-          make -f Makefile.git
-          ./configure
+          cmake -B build -DCMAKE_BUILD_TYPE=Release
+          cmake --build build
 
       - name: Setup package directory and generate SWIG wrapper
         shell: bash
@@ -103,13 +103,13 @@ jobs:
       - name: Install build dependencies
         run: |
           sudo apt-get update
-          sudo apt-get install -y swig autoconf automake libtool
+          sudo apt-get install -y swig cmake
 
       - name: Configure necpp_src
         run: |
           cd necpp_src
-          make -f Makefile.git
-          ./configure
+          cmake -B build -DCMAKE_BUILD_TYPE=Release
+          cmake --build build
 
       - name: Setup package directory and generate SWIG wrapper
         run: |

.github/workflows/build-pynec-wheels.yml

@@ -30,19 +30,19 @@ jobs:
         if: runner.os == 'Linux'
         run: |
           sudo apt-get update
-          sudo apt-get install -y swig autoconf automake libtool
+          sudo apt-get install -y swig cmake
 
       - name: Install build dependencies (macOS)
         if: runner.os == 'macOS'
         run: |
-          brew install swig autoconf automake libtool
+          brew install swig cmake
 
       - name: Configure necpp_src
         shell: bash
         run: |
           cd necpp_src
-          make -f Makefile.git
-          ./configure
+          cmake -B build -DCMAKE_BUILD_TYPE=Release
+          cmake --build build
 
       - name: Setup package directory and generate SWIG wrapper
         shell: bash
@@ -105,13 +105,13 @@ jobs:
       - name: Install build dependencies
         run: |
           sudo apt-get update
-          sudo apt-get install -y swig autoconf automake libtool
+          sudo apt-get install -y swig cmake
 
       - name: Configure necpp_src
         run: |
           cd necpp_src
-          make -f Makefile.git
-          ./configure
+          cmake -B build -DCMAKE_BUILD_TYPE=Release
+          cmake --build build
 
       - name: Setup package directory and generate SWIG wrapper
         run: |

PyNEC/build.sh

@@ -11,8 +11,8 @@ rm -f necpp_src
 ln -s ../necpp_src .
 DIR=`pwd`
 cd ../necpp_src
-make -f Makefile.git
-./configure
+cmake -B build -DCMAKE_BUILD_TYPE=Release
+cmake --build build
 cd ${DIR}
 
 # Generate SWIG wrapper

PyNEC/setup.py

@@ -36,13 +36,13 @@
 )
 nec_sources.extend(glob("PyNEC_wrap.cxx"))
 
-# config.h is generated from ./configure in the parent directory.
+# config.h is generated from cmake in the parent directory.
 #
 if np is not None:
-    include_dirs = [np.get_include(), "necpp_src/src", "necpp_src/", "necpp_src/win32/", "necpp_src/src/eigen3"]
+    include_dirs = [np.get_include(), "necpp_src/src", "necpp_src/", "necpp_src/build/", "necpp_src/win32/", "necpp_src/src/eigen3"]
 else:
     # Fallback for metadata-only setup phases (e.g., egg_info) before build deps are installed
-    include_dirs = ["necpp_src/src", "necpp_src/", "necpp_src/win32/", "necpp_src/src/eigen3"]
+    include_dirs = ["necpp_src/src", "necpp_src/", "necpp_src/build/", "necpp_src/win32/", "necpp_src/src/eigen3"]
 
 necpp_module = Extension(
     "_PyNEC",

necpp/build.sh

@@ -7,8 +7,8 @@ rm -f necpp_src
 ln -s ../necpp_src .
 DIR=`pwd`
 cd necpp_src
-make -f Makefile.git
-./configure
+cmake -B build -DCMAKE_BUILD_TYPE=Release
+cmake --build build
 cd ${DIR}
 PYTHON=python3
 

necpp/setup.py

@@ -26,12 +26,12 @@
 )
 nec_sources.extend(glob("necpp_wrap.c"))
 
-# config.h is generated from ./configure in the parent directory.
+# config.h is generated from cmake in the parent directory.
 #
 necpp_module = Extension(
     "_necpp",
     sources=nec_sources,
-    include_dirs=["necpp_src/src/", "necpp_src/", "necpp_src/src/eigen3"],
+    include_dirs=["necpp_src/src/", "necpp_src/", "necpp_src/build/", "necpp_src/src/eigen3"],
     define_macros=[("BUILD_PYTHON", "1")],
 )