Enable Lua usage of "dlopen()" in CI and wheel builds.

.github/workflows/ci.yml

@@ -75,6 +75,7 @@ jobs:
       CFLAGS_LTO: ${{ contains(matrix.lua-version, 'bundle')  && (contains(matrix.os, 'windows') && '/LTCG' || '-flto') || '' }}
       CFLAGS: ${{ contains(matrix.os, 'windows') && '/O2' || '-O2 -fPIC' }} -g
       MACOSX_DEPLOYMENT_TARGET: "11.0"
+      LUPA_WITH_LUA_DLOPEN: true
 
     steps:
     - uses: actions/checkout@v3

.github/workflows/wheels.yml

@@ -158,7 +158,9 @@ jobs:
             pyversion: 2.7
 
     runs-on: ${{ matrix.os }}
-    env: { MACOSX_DEPLOYMENT_TARGET: 11.0 }
+    env:
+      MACOSX_DEPLOYMENT_TARGET: 11.0
+      LUPA_WITH_LUA_DLOPEN: true
 
     steps:
     - uses: actions/checkout@v3

Makefile

@@ -2,6 +2,7 @@ PYTHON?=python
 USE_BUNDLE?=true
 VERSION?=$(shell sed -ne "s|^VERSION\s*=\s*'\([^']*\)'.*|\1|p" setup.py)
 WITH_CYTHON?=$(shell $(PYTHON)  -c 'import Cython.Build.Dependencies' >/dev/null 2>/dev/null && echo " --with-cython" || true)
+WITH_LUA_DLOPEN?=true
 PYTHON_BUILD_VERSION?=*
 
 MANYLINUX_IMAGES= \
@@ -22,7 +23,7 @@ MANYLINUX_IMAGES= \
 all:  local
 
 local:
-	${PYTHON} setup.py build_ext --inplace $(WITH_CYTHON)
+	LUPA_WITH_LUA_DLOPEN=$(WITH_LUA_DLOPEN) ${PYTHON} setup.py build_ext --inplace $(WITH_CYTHON)
 
 sdist dist/lupa-$(VERSION).tar.gz:
 	${PYTHON} setup.py sdist
@@ -38,7 +39,7 @@ realclean: clean
 	rm -fr lupa/_lupa.c
 
 wheel:
-	$(PYTHON) setup.py bdist_wheel $(WITH_CYTHON)
+	LUPA_WITH_LUA_DLOPEN=$(WITH_LUA_DLOPEN) $(PYTHON) setup.py bdist_wheel $(WITH_CYTHON)
 
 qemu-user-static:
 	docker run --rm --privileged multiarch/qemu-user-static --reset -p yes
@@ -58,6 +59,7 @@ wheel_%: dist/lupa-$(VERSION).tar.gz
 		-e NM=gcc-nm \
 		-e RANLIB=gcc-ranlib \
 		-e LUPA_USE_BUNDLE=$(USE_BUNDLE) \
+		-e LUPA_WITH_LUA_DLOPEN=$(WITH_LUA_DLOPEN) \
 		-e WHEELHOUSE=wheelhouse_$(subst wheel_,,$@) \
 		quay.io/pypa/$(subst wheel_,,$@) \
 		bash -c 'echo "Python versions: $$(ls /opt/python/ | xargs -n 100 echo)" ; \

setup.py

@@ -345,6 +345,8 @@ def has_option(name):
     c_defines.append(('CYTHON_WITHOUT_ASSERTIONS', None))
 if has_option('--with-lua-checks'):
     c_defines.append(('LUA_USE_APICHECK', None))
+if has_option('--with-lua-dlopen'):
+    c_defines.append(('LUA_USE_DLOPEN', None))
 
 
 # find Lua