<html><head><style type="text/css"></style></head><body><div style="font-family:times new roman, new york, times, serif;font-size:12pt"><div>Hello, I'm trying to build libcairo (version 1.6.4) on AIX 5.3 (TL7), but I'm failing a compile time assert:  /dfs/projects/opensource/bin/gcc -DHAVE_CONFIG_H -I. -I.. -I. -I/.../austin.ibm.com/fs/home/smccants/landman/include/freetype2/ -I/.../austin.ibm.com/fs/home/smccants/landman/include -I/.../austin.ibm.com/fs/home/smccants/landman/include/fontconfig -I/opt/freeware/include/libpng12 -DXTHREADS -I/opt/freeware/include -I/.../austin.ibm.com/fs/home/smccants/landman/include/pixman-1 -Wall -Wsign-compare -Werror-implicit-function-declaration -Wpointer-arith -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -Wnested-externs -Wpacked -Wswitch-enum -Wmissing-format-attribute -Wno-unused-parameter -Wno-long-long -Winline -fno-strict-aliasing -g -O2 -MT libcairo_la-cairo-xlib-surface.lo -MD -MP -MF .deps/libcairo_la-cairo-xlib-surface.Tpo -c cairo-xlib-surface.c  -DPIC -o .libs/libcairo_la-cairo-xlib-surface.o cairo-xlib-surface.c:3124: error: size of array 'cairo_xlib_glyph_t_size_assertion' is negative cairo-xlib-surface.c - line 3123-4 reads: /* compile-time assert that #cairo_xlib_glyph_t is the same size as #cairo_glyph_t */ typedef int cairo_xlib_glyph_t_size_assertion [sizeof (cairo_xlib_glyph_t) == sizeof (cairo_glyph_t) ? 1 : -1]; The cairo_xlib_glyph_t struct (defined in cairo-xlib-surface.c) is: typedef struct {   unsigned long index;   union {     struct {       double x;       double y;     } d;     struct {       int x;       int y;     } i;   } p; } cairo_xlib_glyph_t; The cairo_glyph_t struct (defined in cairo.h) is: typedef struct {   unsigned long        index;   double               x;   double               y; } cairo_glyph_t; It seems unlikely that these two structs would be the same size under any compiler, but I suspect I'm wrong since other people must be compiling libcairo successfully.  I'm using gcc version 4.2.2: /dfs/projects/opensource/bin/gcc --version gcc (GCC) 4.2.2 Copyright (C) 2007 Free Software Foundation, Inc. This is free software; see the source for copying conditions.  There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. I'm not sure what to do to work through this problem, so any advice or ideas would be appreciated.  Thanks in advance! Sincerely, Stephen McCants </div></div> </body></html>