Commit 731ce0c for zlib

commit 731ce0c9e863c2a38f66ca7da0610bb3dc674f65
Author: Mark Adler <git@madler.net>
Date:   Mon Feb 16 17:49:11 2026 -0800

    Remove GNU-only constructs from Makefile.in.

diff --git a/Makefile.in b/Makefile.in
index db86fb2..d1f0b8e 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -122,13 +122,9 @@ infcover: infcover.o libz.a
 	$(CC) $(CFLAGS) -coverage -o $@ infcover.o libz.a

 cover: infcover
-ifdef $(GCOV)
 	rm -f *.gcda
 	${QEMU_RUN} ./infcover
 	${GCOV} ${LLVM_GCOV_FLAG} inf*.c -o ./infcover.gcda
-else
-	@echo 'cover disabled as no suitable gcov was found'
-endif

 libz.a: $(OBJS)
 	$(AR) $(ARFLAGS) $@ $(OBJS)