#20372: glib2 won't build correctly on PPC machines ---------------------------+------------------------------------------------ Reporter: mta@… | Owner: ryandesign@… Type: defect | Status: assigned Priority: Normal | Milestone: Component: ports | Version: 1.8.0 Keywords: | Port: glib2 ---------------------------+------------------------------------------------ Changes (by ryandesign@…): * status: new => assigned Comment: Replying to [ticket:20372 mta@…]:

The configure script for glib2 can't figure out the endianness of the machine if there is a "-arch" parameter in CFLAGS and assumes little- endian with a warning. This causes problems in both the universal and non-universal builds of glib2 (for different reasons). Sometime recently MacPorts was changed to provide a -arch flag even in a non-universal build, this causes this build to assume a little-endian machine in all cases.

Maybe r53217.

Of course on a universal build the -arch parameter is necessary and the Portfile contains some code to deal with this. However it is incorrect and the universal build also assumes a little-endian machine in all cases.

Since the build appears to succeed (if you don't see the warning from configure), but assumes little-endian architecture, this is a somewhat subtle bug. It generates header files which may cause other programs to build incorrectly and libraries which mostly work, but fail for some calls. After fixing this bug you need to rebuild everything that depends on glib2 to be sure things will work again.

We had this problem before and fixed it; see #15816. But it must've broken again in a newer glib version. I discovered this myself again recently (using MacPorts 1.7.1 I'm pretty sure) and thought I had filed a ticket but I can't find it now. -- Ticket URL: <http://trac.macports.org/ticket/20372#comment:2> MacPorts <http://www.macports.org/> Ports system for Mac OS

#20372: glib2 won't build correctly on PPC machines ---------------------------+------------------------------------------------ Reporter: mta@… | Owner: ryandesign@… Type: defect | Status: assigned Priority: Normal | Milestone: Component: ports | Version: 1.8.0 Keywords: | Port: glib2 ---------------------------+------------------------------------------------ Comment(by mta@…): I understand that, but patching the configure file is ugly and I didn't want to do that. If you really want to pass the -arch flag then you could change the port file to set ac_cv_c_bigendian appropriately in the configure environment. The universal target does this (this is the code that was broken in the port file) but the non-universal target doesn't. I won't be able to do this right away, but someone else could. -- Ticket URL: <http://trac.macports.org/ticket/20372#comment:4> MacPorts <http://www.macports.org/> Ports system for Mac OS

#20372: glib2 won't build correctly on PPC machines ---------------------------+------------------------------------------------ Reporter: mta@… | Owner: ryandesign@… Type: defect | Status: assigned Priority: Normal | Milestone: Component: ports | Version: 1.8.0 Keywords: | Port: glib2 ---------------------------+------------------------------------------------ Comment(by edmond@…): I just noticed this problem today. To work-around it (this is not a fix), I did the following: % sudo port edit glib2 Then, I forced the endian-order to what I wanted, in my case big-endian, by locating the following code and commenting it out, and then placing the set for the cross_archs, host_archs and big_endian to what I wanted. The code to locate is: # Find architectures which will not run on build platform. if { ${os.arch}=="i386" || ${os.arch}=="x86_64"} { set cross_archs "ppc ppc64" set host_archs "ppc ppc64" set big_endian "yes" } else { set cross_archs "i386 x86_64" set host_archs "i386 x86_64" set big_endian "no" } I commented out the above code (using #'s at the start of each line) and then selected what was right for me, big-endian, which was: set cross_archs "ppc ppc64" set host_archs "ppc ppc64" set big_endian "yes" In case anyone needs a work-around - as I did. -- Ticket URL: <http://trac.macports.org/ticket/20372#comment:6> MacPorts <http://www.macports.org/> Ports system for Mac OS

#20372: glib2 won't build correctly on PPC machines ---------------------------+------------------------------------------------ Reporter: mta@… | Owner: ryandesign@… Type: defect | Status: assigned Priority: Normal | Milestone: Component: ports | Version: 1.8.0 Keywords: | Port: glib2 ---------------------------+------------------------------------------------ Comment(by LantzR@…): Hiya I had what seems to be this problem. I discovered it when reinstalling gtk2 which crashed and burned. XRef: #20997 I'm on running OsX 10.4.11 on PPC. I have kept the default for universal builds. Note that both glib2 and gtk2 were built and working last month, so something changed recently. I had rebuilt glib2 on Sept 12th, then gtk2 failed as described in #20997 two days later {{{ grep G_BYTE_ORDER /opt/local/lib/glib-2.0/include/glibconfig.h #define G_BYTE_ORDER G_LITTLE_ENDIAN }}} [comment:7 michael.klein@…] wrote:

Workaround: set build_arch to an empty string in macports.conf and rebuild glib2. This keeps the port environment from adding -arch=ppc to $CFLAGS

{{{ $ grep build_arch /opt/local/etc/macports/macports.conf #build_arch i386 build_arch }}}

For me the undocumented ''build_arch'' did not exist in macports.conf so I just added the empty one. Uninstalled glib2 and it's dependents, installed glib2 then gtk2. It worked just fine. I believe it did a universal build. I'll look for more info. Cheers, Lantz -- Ticket URL: <http://trac.macports.org/ticket/20372#comment:8> MacPorts <http://www.macports.org/> Ports system for Mac OS

#20372: glib2 won't build correctly on PPC machines ---------------------------+------------------------------------------------ Reporter: mta@… | Owner: ryandesign@… Type: defect | Status: assigned Priority: High | Milestone: Component: ports | Version: 1.8.0 Keywords: | Port: glib2 ---------------------------+------------------------------------------------ Changes (by ryandesign@…): * priority: Normal => High -- Ticket URL: <http://trac.macports.org/ticket/20372#comment:11> MacPorts <http://www.macports.org/> Ports system for Mac OS

#20372: glib2 won't build correctly on PPC machines ---------------------------+------------------------------------------------ Reporter: mta@… | Owner: ryandesign@… Type: defect | Status: assigned Priority: High | Milestone: Component: ports | Version: 1.8.0 Keywords: | Port: glib2 ---------------------------+------------------------------------------------ Comment(by ryandesign@…): Replying to [comment:12 LantzR@…]:

I was doing a universal build, Hm, ok. I didn't think this affected universal builds.

but originally without "build_arch" in macports.conf If build_arch is not set in macports.conf, MacPorts uses its defaults. As of MacPorts 1.8.0, "-arch" is always set, and it was my understanding this was the cause of the problem on PowerPC.

-- Ticket URL: <http://trac.macports.org/ticket/20372#comment:13> MacPorts <http://www.macports.org/> Ports system for Mac OS

#20372: glib2 won't build correctly on PPC machines ----------------------------+----------------------------------------------- Reporter: mta@… | Owner: ryandesign@… Type: defect | Status: closed Priority: High | Milestone: Component: ports | Version: 1.8.0 Resolution: fixed | Keywords: Port: glib2 | ----------------------------+----------------------------------------------- Comment(by ryandesign@…): Followup in r58480. -- Ticket URL: <http://trac.macports.org/ticket/20372#comment:18> MacPorts <http://www.macports.org/> Ports system for Mac OS