Remove the Y2K compliance statement
As of July 2018, this statement is no longer necessary.
diff --git a/README b/README
index bf63f70..925fd8c 100644
--- a/README
+++ b/README
@@ -147,7 +147,6 @@
LICENSE => License to use and redistribute libpng
README => This file
TODO => Things not implemented in the current library
- Y2KINFO => Statement of Y2K compliance
example.c => Example code for using libpng functions
libpng.3 => manual page for libpng (includes libpng-manual.txt)
libpng-manual.txt => Description of libpng and its functions
diff --git a/png.h b/png.h
index e6985a3..1e1b45e 100644
--- a/png.h
+++ b/png.h
@@ -243,63 +243,6 @@
* <https://www.w3.org/TR/2003/REC-PNG-20031110/
*/
-/*
- * Y2K compliance in libpng:
- * =========================
- *
- * July 15, 2018
- *
- * Since the PNG Development group is an ad-hoc body, we can't make
- * an official declaration.
- *
- * This is your unofficial assurance that libpng from version 0.71 and
- * upward through 1.6.35 are Y2K compliant. It is my belief that
- * earlier versions were also Y2K compliant.
- *
- * Libpng only has two year fields. One is a 2-byte unsigned integer
- * that will hold years up to 65535. The other, which is deprecated,
- * holds the date in text format, and will hold years up to 9999.
- *
- * The integer is
- * "png_uint_16 year" in png_time_struct.
- *
- * The string is
- * "char time_buffer[29]" in png_struct. This is no longer used
- * in libpng-1.6.x and will be removed from libpng-1.7.0.
- *
- * There are seven time-related functions:
- * png.c: png_convert_to_rfc_1123_buffer() in png.c
- * (formerly png_convert_to_rfc_1123() prior to libpng-1.5.x and
- * png_convert_to_rfc_1152() in error prior to libpng-0.98)
- * png_convert_from_struct_tm() in pngwrite.c, called in pngwrite.c
- * png_convert_from_time_t() in pngwrite.c
- * png_get_tIME() in pngget.c
- * png_handle_tIME() in pngrutil.c, called in pngread.c
- * png_set_tIME() in pngset.c
- * png_write_tIME() in pngwutil.c, called in pngwrite.c
- *
- * All handle dates properly in a Y2K environment. The
- * png_convert_from_time_t() function calls gmtime() to convert from system
- * clock time, which returns (year - 1900), which we properly convert to
- * the full 4-digit year. There is a possibility that libpng applications
- * are not passing 4-digit years into the png_convert_to_rfc_1123_buffer()
- * function, or that they are incorrectly passing only a 2-digit year
- * instead of "year - 1900" into the png_convert_from_struct_tm() function,
- * but this is not under our control. The libpng documentation has always
- * stated that it works with 4-digit years, and the APIs have been
- * documented as such.
- *
- * The tIME chunk itself is also Y2K compliant. It uses a 2-byte unsigned
- * integer to hold the year, and can hold years as large as 65535.
- *
- * zlib, upon which libpng depends, is also Y2K compliant. It contains
- * no date-related code.
- *
- * Glenn Randers-Pehrson
- * libpng maintainer
- * PNG Development Group
- */
-
#ifndef PNG_H
#define PNG_H
diff --git a/scripts/makefile.32sunu b/scripts/makefile.32sunu
index 7d4b7c5..c849ecd 100644
--- a/scripts/makefile.32sunu
+++ b/scripts/makefile.32sunu
@@ -219,7 +219,7 @@
libpng-config $(LIBSO) $(LIBSOMAJ)* \
libpng.pc
-DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
+DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO
writelock:
chmod a-w *.[ch35] $(DOCS) scripts/*
diff --git a/scripts/makefile.64sunu b/scripts/makefile.64sunu
index 341fce9..8880fa9 100644
--- a/scripts/makefile.64sunu
+++ b/scripts/makefile.64sunu
@@ -219,7 +219,7 @@
libpng-config $(LIBSO) $(LIBSOMAJ)* \
libpng.pc
-DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
+DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO
writelock:
chmod a-w *.[ch35] $(DOCS) scripts/*
diff --git a/scripts/makefile.darwin b/scripts/makefile.darwin
index be3f92c..33c27cc 100644
--- a/scripts/makefile.darwin
+++ b/scripts/makefile.darwin
@@ -200,7 +200,7 @@
$(RM_F) *.o libpng.a pngtest pngout.png libpng-config \
libpng.pc $(LIBNAME).*dylib pngtesti pnglibconf.h
-DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
+DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO
writelock:
chmod a-w *.[ch35] $(DOCS) scripts/*
diff --git a/scripts/makefile.freebsd b/scripts/makefile.freebsd
index cad1a5a..5fec61e 100644
--- a/scripts/makefile.freebsd
+++ b/scripts/makefile.freebsd
@@ -62,7 +62,7 @@
pnglibconf.h: $(PNGLIBCONF_H_PREBUILT)
cp $(PNGLIBCONF_H_PREBUILT) $@
-DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
+DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO
writelock:
chmod a-w *.[ch35] $(DOCS) scripts/*
diff --git a/scripts/makefile.hp64 b/scripts/makefile.hp64
index 5948be8..cde0d15 100644
--- a/scripts/makefile.hp64
+++ b/scripts/makefile.hp64
@@ -206,7 +206,7 @@
libpng-config $(LIBSO) $(LIBSOMAJ)* \
libpng.pc pnglibconf.h
-DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
+DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO
writelock:
chmod a-w *.[ch35] $(DOCS) scripts/*
diff --git a/scripts/makefile.hpgcc b/scripts/makefile.hpgcc
index 5c8791b..efef1f3 100644
--- a/scripts/makefile.hpgcc
+++ b/scripts/makefile.hpgcc
@@ -209,7 +209,7 @@
libpng-config $(LIBSO) $(LIBSOMAJ)* \
libpng.pc pnglibconf.h
-DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
+DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO
writelock:
chmod a-w *.[ch35] $(DOCS) scripts/*
diff --git a/scripts/makefile.hpux b/scripts/makefile.hpux
index b07612d..4489757 100644
--- a/scripts/makefile.hpux
+++ b/scripts/makefile.hpux
@@ -204,7 +204,7 @@
libpng-config $(LIBSO) $(LIBSOMAJ)* \
libpng.pc pnglibconf.h
-DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
+DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO
writelock:
chmod a-w *.[ch35] $(DOCS) scripts/*
diff --git a/scripts/makefile.knr b/scripts/makefile.knr
index d8de064..307453f 100644
--- a/scripts/makefile.knr
+++ b/scripts/makefile.knr
@@ -91,7 +91,7 @@
clean:
$(RM_F) *.o libpng.a pngtest pngout.png ansi2knr pnglibconf.h
-DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
+DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO
writelock:
chmod a-w *.[ch35] $(DOCS) scripts/*
diff --git a/scripts/makefile.linux b/scripts/makefile.linux
index 7b6f5a7..f4ed37f 100644
--- a/scripts/makefile.linux
+++ b/scripts/makefile.linux
@@ -222,7 +222,7 @@
$(LIBSO) $(LIBSOMAJ)* pngtest-static pngtesti \
libpng.pc pnglibconf.h
-DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
+DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO
writelock:
chmod a-w *.[ch35] $(DOCS) scripts/*
diff --git a/scripts/makefile.linux-opt b/scripts/makefile.linux-opt
index f7ef4bc..76f6d1a 100644
--- a/scripts/makefile.linux-opt
+++ b/scripts/makefile.linux-opt
@@ -232,7 +232,7 @@
$(LIBSO) $(LIBSOMAJ)* pngtest-static pngtesti \
libpng.pc pnglibconf.h
-DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
+DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO
writelock:
chmod a-w *.[ch35] $(DOCS) scripts/*
diff --git a/scripts/makefile.mips b/scripts/makefile.mips
index 5633608..0357ae8 100644
--- a/scripts/makefile.mips
+++ b/scripts/makefile.mips
@@ -78,7 +78,7 @@
clean:
rm -f *.o libpng.a pngtest pngout.png pnglibconf.h
-DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
+DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO
writelock:
chmod a-w *.[ch35] $(DOCS) scripts/*
diff --git a/scripts/makefile.openbsd b/scripts/makefile.openbsd
index c4cfb2b..4057b2e 100644
--- a/scripts/makefile.openbsd
+++ b/scripts/makefile.openbsd
@@ -28,7 +28,7 @@
CLEANFILES+= pngtest.o pngtest pnglibconf.h
MAN= libpng.3 libpngpf.3 png.5
-DOCS= ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO \
+DOCS= ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO \
libpng-manual.txt
# Pre-built configuration
diff --git a/scripts/makefile.sco b/scripts/makefile.sco
index 67d84aa..01d7eaa 100644
--- a/scripts/makefile.sco
+++ b/scripts/makefile.sco
@@ -201,7 +201,7 @@
$(LIBSO) $(LIBSOMAJ)* pngtest-static pngtesti \
pnglibconf.h libpng.pc
-DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
+DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO
writelock:
chmod a-w *.[ch35] $(DOCS) scripts/*
diff --git a/scripts/makefile.sggcc b/scripts/makefile.sggcc
index a0d051d..82efe7a 100644
--- a/scripts/makefile.sggcc
+++ b/scripts/makefile.sggcc
@@ -211,7 +211,7 @@
$(RM_F) libpng.a pngtest pngtesti pngout.png libpng.pc \
so_locations libpng-config $(LIBSO) $(LIBSOMAJ)* pnglibconf.h
-DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
+DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO
writelock:
chmod a-w *.[ch35] $(DOCS) scripts/*
diff --git a/scripts/makefile.sgi b/scripts/makefile.sgi
index 7df0902..5d9c23f 100644
--- a/scripts/makefile.sgi
+++ b/scripts/makefile.sgi
@@ -212,7 +212,7 @@
$(LIBSO) $(LIBSOMAJ)* \
so_locations pnglibconf.h
-DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
+DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO
writelock:
chmod a-w *.[ch35] $(DOCS) scripts/*
diff --git a/scripts/makefile.so9 b/scripts/makefile.so9
index ba9308c..93166f3 100644
--- a/scripts/makefile.so9
+++ b/scripts/makefile.so9
@@ -222,7 +222,7 @@
libpng-config $(LIBSO) $(LIBSOMAJ)* \
libpng.pc pnglibconf.h
-DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
+DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO
writelock:
chmod a-w *.[ch35] $(DOCS) scripts/*
diff --git a/scripts/makefile.solaris b/scripts/makefile.solaris
index 8a450d3..6f4ba64 100644
--- a/scripts/makefile.solaris
+++ b/scripts/makefile.solaris
@@ -219,7 +219,7 @@
libpng-config $(LIBSO) $(LIBSOMAJ)* \
libpng.pc pnglibconf.h
-DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
+DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO
writelock:
chmod a-w *.[ch35] $(DOCS) scripts/*
diff --git a/scripts/makefile.solaris-x86 b/scripts/makefile.solaris-x86
index 2ee3c14..4c07b06 100644
--- a/scripts/makefile.solaris-x86
+++ b/scripts/makefile.solaris-x86
@@ -218,7 +218,7 @@
libpng-config $(LIBSO) $(LIBSOMAJ)* \
libpng.pc pnglibconf.h
-DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
+DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO
writelock:
chmod a-w *.[ch35] $(DOCS) scripts/*
diff --git a/scripts/makefile.std b/scripts/makefile.std
index ee6a868..30ab467 100644
--- a/scripts/makefile.std
+++ b/scripts/makefile.std
@@ -109,7 +109,7 @@
$(RM_F) *.o libpng.a pngtest pngout.png pnglibconf.h pnglibconf.c \
pnglibconf.out
-DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
+DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO
writelock:
chmod a-w *.[ch35] $(DOCS) scripts/*
diff --git a/scripts/makefile.sunos b/scripts/makefile.sunos
index efe308c..9a0e28e 100644
--- a/scripts/makefile.sunos
+++ b/scripts/makefile.sunos
@@ -90,7 +90,7 @@
clean:
$(RM_F) *.o libpng.a pngtest pngout.png pnglibconf.h
-DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
+DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO
writelock:
chmod a-w *.[ch35] $(DOCS) scripts/*
