Hi everybody,
My efforts to make GUB fit for the Cairo backend patch came to the following
result:
Building of LilyPond with the cairo backend code and the old versions of
Pixman and Cairo included in Gub works fine. Old Cairo means that pdfs are
generated without hyperlinks and without metadata.
Building of Lilypond with the cairo backend code and the current stable
versions of Pixman 0.40.0 and Cairo 1.16.0 works fine for the linux-x86,
darwin-x86 and linux-64 platforms.
For the mingw platform building of Pixman 0.40 fails. Pixman 0.30, the minimum
version required by Cairo 1.16.0, fails with the same problem, so there is no
need to work on anything but the latest stable code.
Pixman 0.40 initially failed for all platforms, but adding appropriate LDFLAGS
helped for linux.* and darwin-x86. See pixman-new.py.
It's also a linker problem with mingw, but this problem proves to be hard for
me. I tried many more or less obvious link options and searched google's
advice, but I simply was unable to persuade the linker to resolve the PNG
symbols that are in the libpng given on the command line.
An excerpt from the log of a 'bin/gub mingw::pixman-new' run:
libtool: link: i686-mingw32-gcc -mwindows -mms-bitfields -g -O2 -Wall -Wdeclaration-after-statement -Wno-unused-local-typedefs -fno-strict-aliasing -pthread -g -O2 -Wall -Wdeclaration-after-statement -Wno-unused-local-typedefs -fno-strict-aliasing -pthread -o .libs/region-test.exe region-test.o
-L/home/gub/gub/target/mingw/root/usr/lib -L/home/gub/gub/target/mingw/root/usr/bin -L/home/gub/gub/target/mingw/root/usr/lib/w32api ./.libs/libutils.a ../pixman/.libs/libpixman-1.dll.a /home/gub/gub/target/mingw/root/usr/lib/libpng12.dll.a -lz -pthread -Wl,-rpath
-Wl,/home/gub/gub/target/mingw/root/usr/lib -Wl,-rpath -Wl,'$'ORIGIN/../lib -Wl,-rpath -Wl,/home/gub/gub/target/mingw/root/usr/lib
libtool: link: i686-mingw32-gcc -mwindows -mms-bitfields -g -O2 -Wall -Wdeclaration-after-statement -Wno-unused-local-typedefs -fno-strict-aliasing -pthread -g -O2 -Wall -Wdeclaration-after-statement -Wno-unused-local-typedefs -fno-strict-aliasing -pthread -o .libs/region-translate-test.exe
region-translate-test.o -L/home/gub/gub/target/mingw/root/usr/lib -L/home/gub/gub/target/mingw/root/usr/bin -L/home/gub/gub/target/mingw/root/usr/lib/w32api ./.libs/libutils.a ../pixman/.libs/libpixman-1.dll.a /home/gub/gub/target/mingw/root/usr/lib/libpng12.dll.a -lz -pthread -Wl,-rpath
-Wl,/home/gub/gub/target/mingw/root/usr/lib -Wl,-rpath -Wl,'$'ORIGIN/../lib -Wl,-rpath -Wl,/home/gub/gub/target/mingw/root/usr/lib
./.libs/libutils.a(utils.o): In function `write_png':
/home/gub/gub/target/mingw/src/pixman-new-0.40.0/test/utils.c:683: undefined
reference to `png_create_write_struct'
/home/gub/gub/target/mingw/src/pixman-new-0.40.0/test/utils.c:687: undefined
reference to `png_create_info_struct'
/home/gub/gub/target/mingw/src/pixman-new-0.40.0/test/utils.c:690: undefined
reference to `png_init_io'
/home/gub/gub/target/mingw/src/pixman-new-0.40.0/test/utils.c:692: undefined
reference to `png_set_IHDR'
/home/gub/gub/target/mingw/src/pixman-new-0.40.0/test/utils.c:697: undefined
reference to `png_write_info'
/.home//gub/.gublibs//target/libutils.amingw(/utils.osrc)/:pixman -newIn-
0.40.0function/ test`/utils.cwrite_png:'699::
/undefinedhome /referencegub /togub /`targetpng_write_image/'mingw
//srchome//pixmangub-/gubnew/-target0.40.0//mingwtest//src/utils.cpixman:-new683-:0.40.0
/undefinedtest /utils.creference: 701to : `undefinedpng_create_write_struct
'reference
/tohome /`gubpng_write_end/'gub
//targethome//mingwgub//srcgub//pixmantarget/-mingwnew/-src0.40.0/pixman/-testnew/-utils.c0.40.0/:test687/:utils.c
:undefined706 : referenceundefined toreference `topng_create_info_struct '`
png_destroy_write_struct/'home
/gub/gub/target/mingw/src/pixman-new-0.40.0/test/utils.c:690: undefined
reference to `png_init_io'
/home/gub/gub/target/mingw/src/pixman-new-0.40.0/test/utils.c:692: undefined
reference to `png_set_IHDR'
/home/gub/gub/target/mingw/src/pixman-new-0.40.0/test/utils.c:697: undefined
reference to `png_write_info'
/home/gub/gub/target/mingw/src/pixman-new-0.40.0/test/utils.c:699: undefined
reference to `png_write_image'
/home/gub/gub/target/mingw/src/pixman-new-0.40.0/test/utils.c:701: undefined
reference to `png_write_end'
/home/gub/gub/target/mingw/src/pixman-new-0.40.0/test/utils.c:706: undefined
reference to `png_destroy_write_struct'
Attached are my modified gub/gub/spec files for the old versions (pixman.py,
cairo.py) and spec files for the current versions of pixman and cairo (*new.py).
Any idea how to solve the problem is welcome. Thanks in advance!
Knut
from gub import target
class Pixman (target.AutoBuild):
source = 'https://src.fedoraproject.org/repo/pkgs/pixman/pixman-0.13.2.tar.gz/837df4a02c61a60a880644393b57faed/pixman-0.13.2.tar.gz'
dependencies = ['libtool']
def get_conflict_dict (self):
return {'': ['pixman-new'],
'doc': ['pixman-new-doc'],
'devel': ['pixman-new-devel']}
class Pixman__linux__ppc (Pixman):
patches = ['pixman-0.13.2-auxvec.patch']
from gub import target
class Pixman_new (target.AutoBuild):
source = 'https://www.cairographics.org/releases/pixman-0.40.0.tar.gz'
dependencies = ['libtool']
dependencies = ['tools::libtool',
'libpng-devel' ]
configure_flags = (target.AutoBuild.configure_flags
)
def get_conflict_dict (self):
return {'': ['pixman'],
'doc': ['pixman-doc'],
'devel': ['pixman-devel']}
class Pixman_new__linux (Pixman_new):
configure_flags = (Pixman_new.configure_flags
+ 'LDFLAGS="-dy"' )
# LDFLAGS: see e.g. https://gcc.gnu.org/bugzilla/show_bug.cgi?id=39888
class Pixman_new__darwin__x86 (Pixman_new):
configure_flags = (Pixman_new.configure_flags
+ 'LDFLAGS=-lgcc_eh' )
class Pixman_new__mingw (Pixman_new):
dependencies = (Pixman_new.dependencies
# + ['mingw-w64-runtime']
)
configure_flags = (Pixman_new.configure_flags
)
from gub import target
class Cairo (target.AutoBuild):
source = 'http://www.cairographics.org/releases/cairo-1.8.8.tar.gz'
def patch (self):
target.AutoBuild.patch (self)
self.system ('rm -f %(srcdir)s/src/cairo-features.h')
configure_flags = (target.AutoBuild.configure_flags
+ '--disable-xlib'
+ '--disable-xlib-xrender'
+ '--disable-xcb'
+ '--disable-poppler' )
dependencies = ['tools::libtool',
'fontconfig-devel',
'ghostscript-devel',
'libpng-devel',
'pixman-devel',
'zlib-devel']
def get_conflict_dict (self):
return {'': ['cairo-new'],
'doc': ['cairo-new-doc'],
'devel': ['cairo-new-devel']}
class Cairo__mingw (Cairo):
configure_flags = (Cairo.configure_flags
+ ' --enable-ft'
+ ' LDFLAGS="-lpthread -llibpng12"'
)
dependencies = (Cairo.dependencies
+ ['mingw-w64-runtime'])
class Cairo__darwin (Cairo):
dependencies = ([x for x in Cairo.dependencies
if 'libx' not in x
and 'poppler' not in x] # poppler does not build for mingw
)
pass
class Cairo__darwin__ppc (Cairo__darwin):
patches = Cairo__darwin.patches + [
'cairo-1.8.8-darwin-ppc.patch',
]
from gub import target
class Cairo_new (target.AutoBuild):
source = 'https://www.cairographics.org/releases/cairo-1.16.0.tar.xz'
def patch (self):
target.AutoBuild.patch (self)
self.system ('rm -f %(srcdir)s/src/cairo-features.h')
configure_flags = (target.AutoBuild.configure_flags
+ '--disable-xlib'
+ '--disable-xlib-xrender'
+ '--disable-xcb'
+ '--disable-poppler' )
dependencies = ['tools::libtool',
'fontconfig-devel',
'ghostscript-devel',
'glib-devel',
'libpng-devel',
'pixman-new-devel',
'zlib-devel']
def get_conflict_dict (self):
return {'': ['cairo'],
'doc': ['cairo-doc'],
'devel': ['cairo-devel']}
class Cairo_new__darwin (Cairo_new):
configure_flags = (Cairo_new.configure_flags
+ ' CFLAGS="-D CAIRO_NO_MUTEX=1"' )
dependencies = ([x for x in Cairo_new.dependencies
if 'libx' not in x
and 'poppler' not in x] # poppler does not build for mingw ???? old comment, test
)
class Cairo_new__mingw (Cairo_new):
configure_flags = (Cairo_new.configure_flags
+ ' --enable-ft'
+ ' LDFLAGS="-lpthread -llibpng12"')
dependencies = (Cairo_new.dependencies
+ ['mingw-w64-runtime'])
