build: export zlib symbols on Windows

build: export zlib symbols on Windows · nodejs/node@359352c

Original file line number	Diff line number	Diff line change
`@@ -370,9 +370,14 @@`
`370`	`370`	`'-Wl,--no-whole-archive',`
`371`	`371`	`],`
`372`	`372`	`}],`
	`373`	`+# openssl.def is based on zlib.def, zlib symbols`
	`374`	`+# are always exported.`
`373`	`375`	`['use_openssl_def==1', {`
`374`	`376`	`'sources': ['<(SHARED_INTERMEDIATE_DIR)/openssl.def'],`
`375`	`377`	`}],`
	`378`	`+ ['OS=="win" and use_openssl_def==0', {`
	`379`	`+'sources': ['deps/zlib/win32/zlib.def'],`
	`380`	`+ }],`
`376`	`381`	`],`
`377`	`382`	`}],`
`378`	`383`	`],`
`@@ -568,6 +573,8 @@`
`568`	`573`	`'-X^DSO',`
`569`	`574`	`'-X^_',`
`570`	`575`	`'-X^private_',`
	`576`	`+# Base generated DEF on zlib.def`
	`577`	`+'-Bdeps/zlib/win32/zlib.def'`
`571`	`578`	`],`
`572`	`579`	`},`
`573`	`580`	`'conditions': [`