Define HAVE_HIDDEN for libz

This adds the hidden visibility attribute to functions that are needed in
multiple source files of the library but not part of the public API. This
is technically a major bump, but that decided to be overkill.

discussed with deraadt and millert

diff --git a/lib/libz/Makefile b/lib/libz/Makefile
index 467668b..19f8589 100644 (file)
--- a/lib/libz/Makefile
+++ b/lib/libz/Makefile
@@ -1,4 +1,4 @@
-#      $OpenBSD: Makefile,v 1.21 2021/07/04 14:24:49 tb Exp $
+#      $OpenBSD: Makefile,v 1.22 2024/01/21 07:33:46 tb Exp $
 
 LIB=   z
 HDRS=  zconf.h zlib.h
@@ -10,6 +10,8 @@ MAN=  compress.3
 PC_FILES=zlib.pc
 CLEANFILES+=${PC_FILES}
 
+CFLAGS += -DHAVE_HIDDEN
+
 includes:
        @cd ${.CURDIR}; for i in $(HDRS); do \
                j="cmp -s $$i ${DESTDIR}/usr/include/$$i || \