[MacPorts] #62423: graphviz @2.40.1: libtool: compile: unable to infer tagged configuration (was: graphviz 2.40: libtool: compile: unable to infer tagged configuration)

[MacPorts]

#62423: graphviz @2.40.1: libtool: compile: unable to infer tagged configuration
---------------------------------------+------------------------
  Reporter:  TonyCrawford              |      Owner:  ryandesign
      Type:  defect                    |     Status:  accepted
  Priority:  Normal                    |  Milestone:
 Component:  ports                     |    Version:  2.6.4
Resolution:                            |   Keywords:
      Port:  graphviz, graphviz-devel  |
---------------------------------------+------------------------
Changes (by ryandesign):

 * status:  assigned => accepted
 * port:  graphviz => graphviz, graphviz-devel


Old description:

> Tried after cleaning and reconfiguring; it's well stuck.
>
> OS X 10.9.5;
>

> Apple LLVM version 6.0 (clang-600.0.57) (based on LLVM 3.5svn);
>

> Appending main.log and port -v installed;
>

> here's the build command that seems to trip the error:
>
> {{{
> :info:build /bin/sh ../../libtool    --mode=compile /usr/bin/clang
> -DHAVE_CONFIG_H -I. -I../..  -I../.. -I../../lib/common -I../../lib/pathp
> lan -I../../lib/gvc -I../../lib/cgraph -I../../lib/cdt
> -I/opt/local/include -I/opt/local/include  -pipe -Os -arch x86_64 -MT
> GVTextLayout.l
> o -MD -MP -MF .deps/GVTextLayout.Tpo -c -o GVTextLayout.lo GVTextLayout.m
>
> :info:build libtool: compile:  /usr/bin/clang -std=gnu11 -DHAVE_CONFIG_H
> -I. -I../.. -I../.. -I../../lib/common -I../../lib/pathplan -I../..
> /lib/gvc -I../../lib/cgraph -I../../lib/cdt -I/opt/local/include
> -I/opt/local/include -pipe -Os -arch x86_64 -Wall -Wextra -Wmissing-
> include
> -dirs -Wswitch-default -Wfloat-equal -Wundef -Wshadow -Wpointer-arith
> -Wbad-function-cast -Wcast-qual -Wconversion -Wstrict-prototypes -Wmis
> sing-prototypes -Wnested-externs -fno-common -Wall -MT
> gvtextlayout_quartz.lo -MD -MP -MF .deps/gvtextlayout_quartz.Tpo -c
> gvtextlayout_quar
> tz.c  -fno-common -DPIC -o .libs/gvtextlayout_quartz.o
>
> :info:build libtool: compile: unable to infer tagged configuration
>
> :info:build libtool:   error: specify a tag with '--tag'
>
> :info:build make[3]: *** [GVTextLayout.lo] Error 1
> }}}

New description:

 Tried after cleaning and reconfiguring; it's well stuck.

 OS X 10.9.5;


 Apple LLVM version 6.0 (clang-600.0.57) (based on LLVM 3.5svn);


 Appending main.log and port -v installed;


 here's the build command that seems to trip the error:

 {{{
 :info:build /bin/sh ../../libtool    --mode=compile /usr/bin/clang
 -DHAVE_CONFIG_H -I. -I../..  -I../.. -I../../lib/common
 -I../../lib/pathplan -I../../lib/gvc -I../../lib/cgraph -I../../lib/cdt
 -I/opt/local/include -I/opt/local/include  -pipe -Os -arch x86_64 -MT
 GVTextLayout.lo -MD -MP -MF .deps/GVTextLayout.Tpo -c -o GVTextLayout.lo
 GVTextLayout.m
 :info:build libtool: compile:  /usr/bin/clang -std=gnu11 -DHAVE_CONFIG_H
 -I. -I../.. -I../.. -I../../lib/common -I../../lib/pathplan
 -I../../lib/gvc -I../../lib/cgraph -I../../lib/cdt -I/opt/local/include
 -I/opt/local/include -pipe -Os -arch x86_64 -Wall -Wextra -Wmissing-
 include-dirs -Wswitch-default -Wfloat-equal -Wundef -Wshadow -Wpointer-
 arith -Wbad-function-cast -Wcast-qual -Wconversion -Wstrict-prototypes
 -Wmissing-prototypes -Wnested-externs -fno-common -Wall -MT
 gvtextlayout_quartz.lo -MD -MP -MF .deps/gvtextlayout_quartz.Tpo -c
 gvtextlayout_quartz.c  -fno-common -DPIC -o .libs/gvtextlayout_quartz.o
 :info:build libtool: compile: unable to infer tagged configuration
 :info:build libtool:   error: specify a tag with '--tag'
 :info:build make[3]: *** [GVTextLayout.lo] Error 1
 }}}

--

Comment:

 It took me awhile to reacquaint myself with this error. We used to see a
 lot of "unable to infer tagged configuration" errors around ten years ago.
 That was when Apple switched compilers from gcc to briefly llvm-gcc and
 finally to clang. At that time, the error only seemed to occur if the
 compiler that had been used to make libtool was different from the
 compiler being used to compile something else (i.e. graphviz) with libtool
 now. I'm not certain whether that's the same thing that's happening now.
 We don't know what compiler the two reporters used when compiling their
 libtool, but the usual for OS X 10.9 would be to use the normal
 /usr/bin/clang, in which case the problem should not have occurred.

 I was not able to reproduce the problem on my macOS 10.13 machine where
 both my libtool and graphviz were being compiled with /usr/bin/clang. I
 also couldn't reproduce the problem by trying to compile graphviz with a
 different (MacPorts clang) compiler. However we did recently reproduce the
 problem on a [https://build.macports.org/builders/ports-10.5_ppc_legacy-
 builder/builds/95567 MacPorts automated build machine], and there again
 both libtool and graphviz were being compiled with the same compiler
 (/usr/bin/gcc-4.2 in that case).

 I can however see that that `--tag=CC` is indeed missing when invoking
 libtool to compile GVTextLayout.m. It looks like upstream had tried to fix
 this problem five years ago however their fix contained two mistakes so it
 didn't work, and it doesn't appear to have been corrected yet in the
 current version. I've reported the problem to them and proposed a fix:
 https://gitlab.com/graphviz/graphviz/-/issues/2065

-- 
Ticket URL: <https://trac.macports.org/ticket/62423#comment:7>
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