extern const FT_Module_Class
(or similar for C++). However, the actual types of the variables
being declared are often different, e.g., FT_Driver_ClassRec or
FT_Renderer_Class. (Some are, indeed, FT_Module_Class.)
This works with most C compilers (since those structs begin with an
FT_Module_Class struct), but technically it's undefined behavior.
To quote the ISO/IEC 9899:TC2 final committee draft, section 6.2.7
paragraph 2:
All declarations that refer to the same object or function shall
have compatible type; otherwise, the behavior is undefined.
(And they are not compatible types.)
Most C compilers don't reject (or even detect!) code which has this
issue, but the GCC LTO development branch compiler does. (It
outputs the types of the objects while generating .o files, along
with a bunch of other information, then compares them when doing the
final link-time code generation pass.)
Patch from Savannah bug #25133.
* src/base/ftinit.c (FT_USE_MODULE): Include variable type.
* builds/amiga/include/freetype/config/ftmodule.h,
include/freetype/config/ftmodule.h, */module.mk: Updated to declare
pass correct types to FT_USE_MODULE.
* builds/amiga/makefile, builds/amiga/smakefile: Handle new modules.
* builds/amiga/makefile.os4: Makefile for AmigaOS4 SDK.
* builds/amiga/README: Updated.
* builds/amiga/include/freetype/config/ftconfig.h: Handle gcc for
AmigaOS4.
* builds/amiga/include/freetype/config/ftmodule.h: Handle new
modules.
* builds/amiga/src/base/ftdebug.c: Updated to current version of
default ftdebug.c.
Add various include files and macros to have proper support for
both AmigaOS4 and older AmigaOS versions.
Don't declare KVPrintF explicitly.
Replace getenv with GetVar.
Actually enable debugging code.
* builds/amiga/src/base/ftsystem.c: Major rewrite.
tt_face_get_ps_name): Replace switch statement with if clauses to
make it more portable.
* src/cff/cffobjs.c (cff_face_init): Ditto.
* include/freetype/ftmodule.h (FT_Module_Class): Use `FT_Long' for
`module_size'.
* include/freetype/ftrender.h (FT_Glyph_Class_): Use `FT_Long' for
`glyph_size'.
* src/base/ftobjs.c (FT_Render_Glyph): Change second parameter to
`FT_Render_Mode'.
(FT_Render_Glyph_Internal): Change third parameter to
`FT_Render_Mode'.
* src/base/ftglyph.c (FT_Glyph_To_Bitmap): Change second parameter
to `FT_Render_Mode'.
* src/raster/ftrend1.c (ft_raster1_render): Change third parameter
to `FT_Render_Mode'.
* src/smooth/ftsmooth.c (ft_smooth_render, ft_smooth_render_lcd,
ft_smooth_render_lcd_v): Ditto.
(ft_smooth_render_generic): Change third and fifth parameter to
`FT_Render_Mode'.
* include/freetype/freetype.h, include/freetype/internal/ftobjs.h,
include/freetype/ftglyph.h: Updated.
* src/cff/cffdrivr.c (Load_Glyph), src/pcf/pcfdriver.c
(PCF_Glyph_Load), src/pfr/pfrobjs.c (pfr_slot_load),
src/winfonts/winfnt.c (FNT_Load_Glyph), src/t42/t42objs.c
(T42_GlyphSlot_Load), src/bdf/bdfdrivr.c (BDF_Glyph_Load): Change
fourth parameter to `FT_Int32'.
* src/pfr/pfrobjs.c (pfr_face_init): Add two missing parameters
and declare them as unused.
* src/cid/cidparse.h (CID_Parser): Use FT_Long for `postscript_len'.
* src/psnames/psnames.h (PS_Unicode_Value_Func): Change return
value to FT_UInt32.
* src/psnames/psmodule.c (ps_unicode_value, ps_build_unicode_table):
Updated accordingly.
* src/cff/cffdrivr.c (Get_Kerning): Use FT_Long for `middle'.
(cff_get_glyph_name): Use cast for result of ft_strlen.
* src/cff/cffparse.c (cff_parse_real): User cast for assigning
`exp'.
* src/cff/cffload.c (cff_index_get_pointers): Use FT_ULong for
some local variables.
(cff_charset_load, cff_encoding_load): Use casts to FT_UInt for some
switch statements.
(cff_font_load): Use cast in call to CFF_Load_FD_Select.
* src/cff/cffobjs.c (cff_size_init): Use more casts.
(cff_face_init): Use FT_Int32 for `flags'.
* src/cff/cffgload.c (cff_operator_seac): Use cast for assigning
`adx' and `ady'.
(cff_decoder_parse_charstrings): Use FT_ULong for third parameter.
Use more casts.
* src/cff/cffcmap.c (cff_cmap_unicode_init): Use cast for `count'.
* src/cid/cidload.c (cid_read_subrs): Use FT_ULong for `len'.
* src/cid/cidgload.c (cid_load_glyph): Add missing cast for
`cid_get_offset'.
* src/psaux/t1decode.c (t1_decoder_parse_charstrings) <18>: Use
cast for `num_points'.
(t1_decoder_init): Use cast for assigning `decoder->num_glyphs'.
* src/base/ftdebug.c (ft_debug_init): Use FT_Int.
* include/freetype/internal/ftdriver.h (FT_Slot_LoadFunc): Use
`FT_Int32' for fourth parameter.
* src/base/ftobjs.c (open_face): Use cast for calling
clazz->init_face.
* src/raster/ftraster.c (Set_High_Precision): Use `1' instead of
`1L'.
(Finalize_Profile_Table, Line_Up, ft_black_init): Use casts.
* src/raster/ftrend1.c (ft_raster1_render): Ditto.
* src/sfnt/sfnt_dir_check: Compare `magic' with unsigned long
constant.
* builds/amiga/include/freetype/config/ftmodule.h: Updated.
amiga/include/freetype/config/ftmodule.h: Updated to include
support for BDF and Type42 drivers.
* docs/modules.txt: Updated.
* src/bdf/bdflib.c (_bdf_parse_glyphs): Replace floating point math
with calls to `FT_MulDiv'.
Werner Lemberg