Misc. typos

Some are user facing. Some are in actual code. Most are in source comments. Also, please double check the changes in contrib/tools/pngfix.c

2 files changed, 6 insertions, 6 deletions

diff --git a/scripts/options.awk b/scripts/options.awk
index 81b82ff09..5a0e62652 100755
--- a/scripts/options.awk
+++ b/scripts/options.awk
@@ -40,7 +40,7 @@ BEGIN{
    # the lines, for example by inserting spaces around operators, and all
    # C preprocessors notice lines that start with '#', most remove comments.
    # The technique adopted here is to make the final output lines into
-   # C strings (enclosed in double quotes), preceeded by PNG_DFN.  As a
+   # C strings (enclosed in double quotes), preceded by PNG_DFN.  As a
    # consequence the output cannot contain a 'raw' double quote - instead put
    # @' in, this will be replaced by a single " afterward.  See the parser
    # script dfn.awk for more capabilities (not required here).  Note that if
@@ -336,7 +336,7 @@ $1 == "option" && NF >= 2{
 
 # chunk NAME [requires OPT] [enables LIST] [on|off|disabled]
 #   Expands to the 'option' settings appropriate to the reading and
-#   writing of an ancilliary PNG chunk 'NAME':
+#   writing of an ancillary PNG chunk 'NAME':
 #
 #   option READ_NAME requires READ_ANCILLARY_CHUNKS [READ_OPT]
 #   option READ_NAME enables NAME LIST
diff --git a/scripts/pnglibconf.dfa b/scripts/pnglibconf.dfa
index 52c0c742e..a1e7a9164 100644
--- a/scripts/pnglibconf.dfa
+++ b/scripts/pnglibconf.dfa
@@ -324,7 +324,7 @@ option WRITE_INT_FUNCTIONS disabled
 #     By default recoverable errors on write should just generate warnings,
 #     not generally safe because this allows the application to write invalid
 #     PNG files.  Applications should enable this themselves; it's useful
-#     because it means that a failure to write an ancilliary chunk can often be
+#     because it means that a failure to write an ancillary chunk can often be
 #     ignored.
 
 option WARNINGS
@@ -395,7 +395,7 @@ option IO_STATE
 option USER_LIMITS requires READ
 
 # The default settings given below for the limits mean that libpng will
-# limit the size of images or the size of data in ancilliary chunks to less
+# limit the size of images or the size of data in ancillary chunks to less
 # than the specification or implementation limits. Settings have the
 # following interpretations:
 #
@@ -559,7 +559,7 @@ option WRITE_CUSTOMIZE_ZTXT_COMPRESSION requires WRITE
 option WRITE_CUSTOMIZE_COMPRESSION requires WRITE
 
 # Any chunks you are not interested in, you can undef here.  The
-# ones that allocate memory may be expecially important (hIST,
+# ones that allocate memory may be especially important (hIST,
 # tEXt, zTXt, tRNS, pCAL).  Others will just save time and make png_info
 # a bit smaller.
 
@@ -715,7 +715,7 @@ setting sCAL_PRECISION default 5
 setting ZBUF_SIZE default 8192
 
 # This is the size of the decompression buffer used when counting or checking
-# the decompressed size of an LZ stream from a compressed ancilliary chunk; the
+# the decompressed size of an LZ stream from a compressed ancillary chunk; the
 # decompressed data is never used so a different size may be optimal.  This size
 # was determined using contrib/libtests/timepng.c with compressed zTXt data
 # around 11MByte in size.  Slight speed improvements (up to about 14% in