Clean up config, scripts, examples, etc.

png.c

@@ -3128,11 +3128,11 @@ png_ascii_from_fp(png_const_structrp png_ptr, png_charp ascii, size_t size,
             /* The total output count (max) is now 4+precision */
 
             /* Check for an exponent, if we don't need one we are
-             * done and just need to terminate the string.  At
-             * this point exp_b10==(-1) is effectively a flag - it got
-             * to '-1' because of the decrement after outputting
-             * the decimal point above (the exponent required is
-             * *not* -1!)
+             * done and just need to terminate the string.  At this
+             * point, exp_b10==(-1) is effectively a flag: it got
+             * to '-1' because of the decrement, after outputting
+             * the decimal point above. (The exponent required is
+             * *not* -1.)
              */
             if (exp_b10 >= (-1) && exp_b10 <= 2)
             {
@@ -3978,10 +3978,10 @@ png_build_16bit_table(png_structrp png_ptr, png_uint_16pp *ptable,
    /* CSE the division and work round wacky GCC warnings (see the comments
     * in png_gamma_8bit_correct for where these come from.)
     */
-   const double fmax = 1./(((png_int_32)1 << (16U - shift))-1);
+   double fmax = 1.0 / (((png_int_32)1 << (16U - shift)) - 1);
 #endif
-   unsigned int max = (1U << (16U - shift))-1U;
-   unsigned int max_by_2 = 1U << (15U-shift);
+   unsigned int max = (1U << (16U - shift)) - 1U;
+   unsigned int max_by_2 = 1U << (15U - shift);
    unsigned int i;
 
    png_uint_16pp table = *ptable =

pngconf.h

@@ -63,8 +63,8 @@
  */
 #define PNG_CONST const /* backward compatibility only */
 
-/* This controls optimization of the reading of 16-bit and 32-bit values
- * from PNG files.  It can be set on a per-app-file basis - it
+/* This controls optimization of the reading of 16-bit and 32-bit
+ * values from PNG files.  It can be set on a per-app-file basis: it
  * just changes whether a macro is used when the function is called.
  * The library builder sets the default; if read functions are not
  * built into the library the macro implementation is forced on.

scripts/descrip.mms

@@ -16,10 +16,10 @@ OBJS = png.obj, pngset.obj, pngget.obj, pngrutil.obj, pngtrans.obj,\
 CFLAGS= $(C_DEB) $(CC_DEFS) $(PREF)
 
 all : pngtest.exe libpng.olb
-		@ write sys$output " pngtest available"
+	@ write sys$output " pngtest available"
 
 libpng.olb : libpng.olb($(OBJS))
-	@ write sys$output " Libpng available"
+	@ write sys$output " libpng available"
 
 
 pngtest.exe : pngtest.obj libpng.olb

scripts/makefile.hp64

 # makefile for libpng, HPUX (10.20 and 11.00) using the ANSI/C product.
 # Copyright (C) 1999-2002, 2006, 2009, 2010-2014 Glenn Randers-Pehrson
 # Copyright (C) 1995 Guy Eric Schalnat, Group 42
-# contributed by Jim Rice and updated by Chris Schleicher, Hewlett Packard
+# Contributed by Jim Rice and updated by Chris Schleicher, Hewlett Packard
 #
 # This code is released under the libpng license.
 # For conditions of distribution and use, see the disclaimer

scripts/makefile.hpux

 # makefile for libpng, HPUX (10.20 and 11.00) using the ANSI/C product.
 # Copyright (C) 1999-2002, 2006, 2010-2014 Glenn Randers-Pehrson
 # Copyright (C) 1995 Guy Eric Schalnat, Group 42
-# contributed by Jim Rice and updated by Chris Schleicher, Hewlett Packard
+# Contributed by Jim Rice and updated by Chris Schleicher, Hewlett Packard
 #
 # This code is released under the libpng license.
 # For conditions of distribution and use, see the disclaimer

scripts/makefile.std

@@ -122,6 +122,7 @@ pngwio.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.
 pngmem.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
 pngset.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
 pngget.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngpread.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
 pngread.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
 pngrtran.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
 pngrutil.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
@@ -129,6 +130,5 @@ pngtrans.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebu
 pngwrite.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
 pngwtran.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
 pngwutil.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngpread.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
 
 pngtest.o: png.h pngconf.h pnglibconf.h

scripts/pnglibconf.dfa

@@ -8,7 +8,8 @@ com pnglibconf.h - library build configuration
 com
 version
 com
-com Copyright (c) 1998-2017 Glenn Randers-Pehrson
+com Copyright (c) 2018 Cosmin Truta
+com Copyright (c) 1998-2002,2004,2006-2018 Glenn Randers-Pehrson
 com
 com This code is released under the libpng license.
 com For conditions of distribution and use, see the disclaimer

scripts/pnglibconf.h.prebuilt

@@ -2,10 +2,10 @@
 
 /* pnglibconf.h - library build configuration */
 
-/* Libpng version 1.6.36.git */
+/* libpng version 1.6.36.git */
 
 /* Copyright (c) 2018 Cosmin Truta */
-/* Copyright (c) 1998-2018 Glenn Randers-Pehrson */
+/* Copyright (c) 1998-2002,2004,2006-2018 Glenn Randers-Pehrson */
 
 /* This code is released under the libpng license. */
 /* For conditions of distribution and use, see the disclaimer */
@@ -21,8 +21,6 @@
 #define PNG_ALIGNED_MEMORY_SUPPORTED
 /*#undef PNG_ARM_NEON_API_SUPPORTED*/
 /*#undef PNG_ARM_NEON_CHECK_SUPPORTED*/
-/*#undef PNG_POWERPC_VSX_API_SUPPORTED*/
-/*#undef PNG_POWERPC_VSX_CHECK_SUPPORTED*/
 #define PNG_BENIGN_ERRORS_SUPPORTED
 #define PNG_BENIGN_READ_ERRORS_SUPPORTED
 /*#undef PNG_BENIGN_WRITE_ERRORS_SUPPORTED*/
@@ -47,6 +45,8 @@
 #define PNG_IO_STATE_SUPPORTED
 #define PNG_MNG_FEATURES_SUPPORTED
 #define PNG_POINTER_INDEXING_SUPPORTED
+/*#undef PNG_POWERPC_VSX_API_SUPPORTED*/
+/*#undef PNG_POWERPC_VSX_CHECK_SUPPORTED*/
 #define PNG_PROGRESSIVE_READ_SUPPORTED
 #define PNG_READ_16BIT_SUPPORTED
 #define PNG_READ_ALPHA_MODE_SUPPORTED