Update bindings Makefiles with configurable blob size

bindings/csharp/Makefile

@@ -1,5 +1,7 @@
 INCLUDE_DIRS = ../../src ../../blst/bindings
 
+FIELD_ELEMENTS_PER_BLOB ?= 4096
+
 ifeq ($(OS),Windows_NT)
 	BLST_BUILDSCRIPT=./build.bat
 	BLST_OBJ=blst.lib
@@ -20,6 +22,8 @@ else
 	CKZG_LIBRARY_PATH=Ckzg.Bindings/runtimes/$(CSHARP_PLATFORM)/native/ckzg.so
 endif
 
+CLANG_FLAGS += -DFIELD_ELEMENTS_PER_BLOB=$(FIELD_ELEMENTS_PER_BLOB)
+
 TARGETS=ckzg.c ../../src/c_kzg_4844.c ../../blst/$(BLST_OBJ)
 
 .blst:

bindings/java/Makefile

@@ -2,7 +2,9 @@ INCLUDE_DIRS = ../../src ../../blst/bindings
 
 LIBRARY_FOLDER=src/main/resources/ethereum/ckzg4844/lib
 
-CC_FLAGS=
+FIELD_ELEMENTS_PER_BLOB ?= 4096
+
+CC_FLAGS = -DFIELD_ELEMENTS_PER_BLOB=$(FIELD_ELEMENTS_PER_BLOB)
 
 ifeq ($(OS),Windows_NT)
   CLANG_EXECUTABLE=clang

bindings/node.js/binding.gyp

@@ -8,7 +8,8 @@
         "CLANG_CXX_LIBRARY": "libc++",
         "MACOSX_DEPLOYMENT_TARGET": "13.0"
       },
-      "defines": ["NAPI_DISABLE_CPP_EXCEPTIONS"],
+      "defines": ["NAPI_DISABLE_CPP_EXCEPTIONS",
+                  "FIELD_ELEMENTS_PER_BLOB=<!(echo ${FIELD_ELEMENTS_PER_BLOB:-4096})"],
       "sources": ["kzg.cxx"],
       "include_dirs": [
         "../../inc",

bindings/python/Makefile

@@ -1,6 +1,8 @@
 INCLUDE_DIRS = .. ../../src ../../inc
 INCLUDE_PY = $(shell python -c 'import sysconfig; print(sysconfig.get_config_var("INCLUDEPY"))')
 
+FIELD_ELEMENTS_PER_BLOB?=4096
+
 .PHONY: all
 
 all: test ecc_test
@@ -12,4 +14,4 @@ ecc_test: py_ecc_tests.py ckzg.so
 	python $<
 
 ckzg.so: ckzg.c ../../src/c_kzg_4844.o ../../lib/libblst.a
-	clang -O -Wall -shared -fPIC -Wl,-Bsymbolic -I${INCLUDE_PY} ${addprefix -I,${INCLUDE_DIRS}} -o $@ $^
+	clang -O -Wall -shared -fPIC -Wl,-Bsymbolic -I${INCLUDE_PY} ${addprefix -I,${INCLUDE_DIRS}} -DFIELD_ELEMENTS_PER_BLOB=${FIELD_ELEMENTS_PER_BLOB} -o $@ $^