Remove files to be installed before copying them in Makefile.in.

Based on upstream commit c7d77756d01210790b6d87442eba83dcc586a305

diff --git a/Makefile.in b/Makefile.in
index 3c0e5c68fec8f873fc7d969999ae3f5d1fd96622..cd212cb7bfdbae3add71c9d902a3d9ed2db775c0 100644 (file)
--- a/Makefile.in
+++ b/Makefile.in
@@ -197,6 +197,7 @@ endif
 install-shared: $(SHAREDTARGET)
 ifneq ($(SHAREDTARGET),)
        -@if [ ! -d $(DESTDIR)$(sharedlibdir) ]; then mkdir -p $(DESTDIR)$(sharedlibdir); fi
+       rm -f $(DESTDIR)$(sharedlibdir)/$(SHAREDTARGET)
        cp $(SHAREDTARGET) $(DESTDIR)$(sharedlibdir)
        chmod 644 $(DESTDIR)$(sharedlibdir)/$(SHAREDTARGET)
 ifneq ($(SHAREDLIB),$(SHAREDTARGET))
@@ -214,6 +215,7 @@ endif
 
 install-static: $(STATICLIB)
        -@if [ ! -d $(DESTDIR)$(libdir)       ]; then mkdir -p $(DESTDIR)$(libdir); fi
+       rm -f $(DESTDIR)$(libdir)/$(STATICLIB)
        cp $(STATICLIB) $(DESTDIR)$(libdir)
        chmod 644 $(DESTDIR)$(libdir)/$(STATICLIB)
        -@($(RANLIB) $(DESTDIR)$(libdir)/$(STATICLIB) || true) >/dev/null 2>&1
@@ -222,13 +224,16 @@ install-static: $(STATICLIB)
 install-libs: install-shared install-static
        -@if [ ! -d $(DESTDIR)$(man3dir)      ]; then mkdir -p $(DESTDIR)$(man3dir); fi
        -@if [ ! -d $(DESTDIR)$(pkgconfigdir) ]; then mkdir -p $(DESTDIR)$(pkgconfigdir); fi
+       rm -f $(DESTDIR)$(man3dir)/zlib.3
        cp $(SRCDIR)/zlib.3 $(DESTDIR)$(man3dir)
        chmod 644 $(DESTDIR)$(man3dir)/zlib.3
+       rm -f $(DESTDIR)$(pkgconfigdir)/zlib.pc
        cp zlib.pc $(DESTDIR)$(pkgconfigdir)
        chmod 644 $(DESTDIR)$(pkgconfigdir)/zlib.pc
 
 install: install-libs
        -@if [ ! -d $(DESTDIR)$(includedir)   ]; then mkdir -p $(DESTDIR)$(includedir); fi
+       rm -f $(DESTDIR)$(includedir)/zlib.h $(DESTDIR)$(includedir)/zconf.h
        cp $(SRCDIR)/zlib.h zconf.h $(DESTDIR)$(includedir)
        chmod 644 $(DESTDIR)$(includedir)/zlib.h $(DESTDIR)$(includedir)/zconf.h