Update SWIG version (4.3.0), use C99 standard to build, and drop 32-bit Windows wheels (#148)

* Update swig dependencies

* Set C standard for building swig to C99

* Remove 32-bit Windows wheel

---------

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
Co-authored-by: Ryan Mast <mast.ryan@gmail.com>

Author: github-actions[bot]

.github/workflows/build.yml

@@ -69,13 +69,6 @@ jobs:
             build: ""
             artifact_suffix: "windows_x86_64"
             use_qemu: false
-          - os: windows-2019
-            arch: "x86"
-            msystem: "mingw32"
-            mingw_env: "i686"
-            build: ""
-            artifact_suffix: "windows_x86"
-            use_qemu: false
           - os: macos-14
             arch: "universal2"
             build: ""

CMakeLists.txt

@@ -165,6 +165,8 @@ if(NOT WIN_USE_PREBUILT)
         -DBUILD_TESTING:BOOL=OFF
         -DCMAKE_CXX_STANDARD_REQUIRED:BOOL=ON
         -DCMAKE_CXX_STANDARD:STRING=11
+        -DCMAKE_C_STANDARD_REQUIRED:BOOL=ON
+        -DCMAKE_C_STANDARD:STRING=99
         -DCMAKE_INSTALL_PREFIX:PATH=${CMAKE_INSTALL_PREFIX}
         "-DCMAKE_C_FLAGS:STRING=${_swig_build_flags}"
         "-DCMAKE_CXX_FLAGS:STRING=${_swig_build_flags}"

swig_version.cmake

@@ -1 +1 @@
-set(SWIG_VERSION 4.2.1)
+set(SWIG_VERSION 4.3.0)