Fix small Makefile errors & Python wrapper return value

Makefile

@@ -14,7 +14,7 @@ WRAPPERS ?= $(notdir $(patsubst %/,%,$(wildcard wrappers/*/)))
 test-wrappers: build
 	$(MAKE) $(foreach wrapper,$(WRAPPERS),.test-$(wrapper))
 
-clean: .clean_libs $(foreach wrapper,$(WRAPPERS),.clean-$(wrapper))
+clean: .clean-libs $(foreach wrapper,$(WRAPPERS),.clean-$(wrapper))
 
 .clean-libs:
 	$(MAKE) -C exports clean

wrappers/php/Makefile

@@ -36,7 +36,7 @@ test: install-header install-dev-dependencies
 
 composers = composer composer.phar ./composer ./composer.phar
 # Find first composer from list above, default to 'composer'
-find_composer = $(firstword $(foreach bin,$(composers),$(if $(shell command -v $(bin)),$(bin),)) composer)
+find_composer = $(firstword $(foreach bin,$(composers),$(if $(shell command -v $(bin) 2>/dev/null),$(bin),)) composer)
 # Lazy variable: https://blog.jgc.org/2016/07/lazy-gnu-make-variables.html
 COMPOSER ?= $(eval COMPOSER := $(find_composer))$(COMPOSER)
 

wrappers/python/eduvpncommon/discovery.py

@@ -29,7 +29,7 @@ def make(bs: bytes) -> "_GoSlice":
         return _GoSlice((c_char * len(bs))(*bs), len(bs), len(bs))
 
 
-_lib.Verify.argtypes, _lib.Verify.restype = [_GoSlice, _GoSlice, _GoSlice, c_uint64], c_int64
+_lib.Verify.argtypes, _lib.Verify.restype = [_GoSlice, _GoSlice, _GoSlice, c_uint64], c_int8
 _lib.InsecureTestingSetExtraKey.argtypes, _lib.InsecureTestingSetExtraKey.restype = [_GoSlice], None