#32041: apple-gcc42: build fails when libunwind-headers is installed -------------------------------+-------------------------------------------- Reporter: dave@… | Owner: jeremyhu@… Type: defect | Status: new Priority: Normal | Milestone: Component: ports | Version: 2.0.3 Keywords: | Port: apple-gcc42 -------------------------------+-------------------------------------------- Comment(by royliu@…): @dave, Did the apple-gcc42 port get updated for you recently (after November 11)? The build failure may be related to a change I made. -Roy -- Ticket URL: <https://trac.macports.org/ticket/32041#comment:2> MacPorts <http://www.macports.org/> Ports system for Mac OS

#32041: apple-gcc42: build fails when libunwind-headers is installed -------------------------------+-------------------------------------------- Reporter: dave@… | Owner: jeremyhu@… Type: defect | Status: new Priority: Normal | Milestone: Component: ports | Version: 2.0.3 Keywords: | Port: apple-gcc42 -------------------------------+-------------------------------------------- Comment(by royliu@…): What was the approximate build failure time? @jeremyhu, I say we close this and wait for more reports like this one to crop up. What do you think? -- Ticket URL: <https://trac.macports.org/ticket/32041#comment:4> MacPorts <http://www.macports.org/> Ports system for Mac OS

#32041: apple-gcc42: build fails when libunwind-headers is installed -------------------------------+-------------------------------------------- Reporter: dave@… | Owner: jeremyhu@… Type: defect | Status: new Priority: Normal | Milestone: Component: ports | Version: 2.0.3 Keywords: | Port: apple-gcc42 -------------------------------+-------------------------------------------- Changes (by ryandesign@…): * cc: royliu@…, ryandesign@… (added) Comment: Replying to [comment:4 royliu@…]:

@jeremyhu, I say we close this and wait for more reports like this one to crop up. What do you think?

I wouldn't close it until the problem is resolved. It's a real problem; I experienced it too on Snow Leopard with Xcode 3.2.6, and solved it by deactivating libunwind-headers, as indicated here. See also #32224 which may be the same problem or related. apple-gcc42 should either be fixed to install properly even when libunwind-headers is installed, or it should fail with a nice error message when libunwind-headers is installed telling the user to deactivate it first; see the ImageMagick Portfile for a nice reusable pre-configure block that can be used to do the latter. -- Ticket URL: <https://trac.macports.org/ticket/32041#comment:6> MacPorts <http://www.macports.org/> Ports system for Mac OS

#32041: apple-gcc42: build fails when libunwind-headers is installed -------------------------------+-------------------------------------------- Reporter: dave@… | Owner: mfeiri@… Type: defect | Status: new Priority: Normal | Milestone: Component: ports | Version: 2.0.3 Keywords: | Port: libunwind-headers -------------------------------+-------------------------------------------- Comment(by ryandesign@…): Are you sure? Couldn't it just as easily be that apple-gcc42 is placing -I${prefix}/include before -I. in its CPPFLAGS? -- Ticket URL: <https://trac.macports.org/ticket/32041#comment:8> MacPorts <http://www.macports.org/> Ports system for Mac OS

#32041: apple-gcc42: build fails when libunwind-headers is installed -------------------------------+-------------------------------------------- Reporter: dave@… | Owner: mfeiri@… Type: defect | Status: new Priority: Normal | Milestone: Component: ports | Version: 2.0.3 Keywords: | Port: libunwind-headers -------------------------------+-------------------------------------------- Comment(by ryandesign@…): Then you're saying that even if you have libunwind-headers installed, apple-gcc42 builds correctly for you on Lion? I'll get you a log of the failure from Snow Leopard. -- Ticket URL: <https://trac.macports.org/ticket/32041#comment:10> MacPorts <http://www.macports.org/> Ports system for Mac OS

#32041: apple-gcc42: build fails when libunwind-headers is installed -------------------------------+-------------------------------------------- Reporter: dave@… | Owner: jeremyhu@… Type: defect | Status: new Priority: Normal | Milestone: Component: ports | Version: 2.0.3 Keywords: haspatch | Port: apple-gcc42 -------------------------------+-------------------------------------------- Changes (by ryandesign@…): * keywords: => haspatch Comment: Replying to [comment:10 ryandesign@…]:

I'll get you a log of the failure from Snow Leopard.

Here it is: attachment:main.log.bz2 Replying to [comment:11 mfeiri@…]:

I managed to reproduce the bug on a snow leopard system. What happens is that unwind.h from libunwind(-headers) shadows the internal unwind.h in gcc. I consider this a bug in gcc though. The gcc build scripts should properly arrange the order of the include dirs. Indeed this seems fixed in gcc43 and all newer versions of gcc.

That's what I assumed the problem was.

But I don't see myself spending time and effort backporting these fixes from gcc43 to apple-gcc42 (which would also trigger gplv3 concerns). My recommendation is to simply mark apple-gcc42 as "conflicts libunwind- headers"

No; the `conflicts` keyword models activation-time conflicts (as in, two ports trying to install a file of the same name); it does not model nor prevent build-time conflicts. This must be handled as I already indicated above: Replying to [comment:6 ryandesign@…]:

or it should fail with a nice error message when libunwind-headers is installed telling the user to deactivate it first; see the ImageMagick Portfile for a nice reusable pre-configure block that can be used to do the latter.

I've now implemented this in attachment:apple-gcc42.diff; Jeremy, please consider committing it.

(or maybe even as "replaced_by clang").

No; the entire reason the apple-gcc42 port exists is to provide a usable compiler for those ports that cannot be compiled with either clang or llvm-gcc-4.2. Since Xcode 4.2 no longer provides any version of gcc, we need a port containing a working version of Apple gcc for those ports to use. See ProblemHotlist#compiler and PortfileRecipes#compiler for how we're currently using this port, in many places. -- Ticket URL: <https://trac.macports.org/ticket/32041#comment:12> MacPorts <http://www.macports.org/> Ports system for Mac OS

#32041: apple-gcc42: build fails when libunwind-headers is installed --------------------------------+------------------------------------------- Reporter: dave@… | Owner: jeremyhu@… Type: defect | Status: closed Priority: Normal | Milestone: Component: ports | Version: 2.0.3 Resolution: fixed | Keywords: haspatch Port: apple-gcc42 | --------------------------------+------------------------------------------- Changes (by jeremyhu@…): * status: new => closed * resolution: => fixed Comment: r87623 -- Ticket URL: <https://trac.macports.org/ticket/32041#comment:14> MacPorts <http://www.macports.org/> Ports system for Mac OS

#32041: apple-gcc42: build fails when libunwind-headers is installed --------------------------------+------------------------------------------- Reporter: dave@… | Owner: jeremyhu@… Type: defect | Status: closed Priority: Normal | Milestone: Component: ports | Version: 2.0.3 Resolution: fixed | Keywords: haspatch Port: apple-gcc42 | --------------------------------+------------------------------------------- Comment(by 521E328E-2A13-4749-826A-E4EF4F22A0F1@…): I just ran into this issue on Lion while updating my installed ports ({{{port selfupdate && port sync}}}) using: {{{ % port upgrade -u outdated ---> Computing dependencies for apple-gcc42 ---> Building apple-gcc42 Error: apple-gcc42 cannot be built while libunwind-headers is active. Error: Please deactivate libunwind-headers and try again. Error: You can reactivate libunwind-headers again later. Error: Target org.macports.build returned: libunwind-headers is installed Log for apple-gcc42 is at: /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports .org_release_ports_lang_apple-gcc42/apple-gcc42/main.log Error: Problem while installing apple-gcc42 To report a bug, see <http://guide.macports.org/#project.tickets> }}} Should the fix be available to me (after {{{port sync}}})? -- Ticket URL: <https://trac.macports.org/ticket/32041#comment:16> MacPorts <http://www.macports.org/> Ports system for Mac OS

#32041: apple-gcc42: build fails when libunwind-headers is installed --------------------------------+------------------------------------------- Reporter: dave@… | Owner: jeremyhu@… Type: defect | Status: closed Priority: Normal | Milestone: Component: ports | Version: 2.0.3 Resolution: fixed | Keywords: haspatch Port: apple-gcc42 | --------------------------------+------------------------------------------- Changes (by dports@…): * cc: dports@… (added) Comment: Can't we make this work with libunwind-headers installed just by doing something like this? (see attached patch) We can avoid putting ${prefix} into the include path since we're not using any libraries from there -- mpfr and gmp are for Fortran only and we're not building that. This works for me on Lion. -- Ticket URL: <https://trac.macports.org/ticket/32041#comment:18> MacPorts <http://www.macports.org/> Ports system for Mac OS

#32041: apple-gcc42: build fails when libunwind-headers is installed --------------------------------+------------------------------------------- Reporter: dave@… | Owner: jeremyhu@… Type: defect | Status: reopened Priority: Normal | Milestone: Component: ports | Version: 2.0.3 Resolution: | Keywords: haspatch Port: apple-gcc42 | --------------------------------+------------------------------------------- Comment(by jeremyhu@…): Thanks. I need to revbump apple-gcc42 to fix the path to ld64 and also want to add in a symlink to as, so it will use our as provided by cctools. I'll do this at the same time. -- Ticket URL: <https://trac.macports.org/ticket/32041#comment:20> MacPorts <http://www.macports.org/> Ports system for Mac OS