[MacPorts] #59786: perl5.30 forces modules to build with clang-3.4, though they don't declare a dependency on it

[MacPorts]

#59786: perl5.30 forces modules to build with clang-3.4, though they don't declare
a dependency on it
-------------------------+----------------------
  Reporter:  ryandesign  |      Owner:  mojca
      Type:  defect      |     Status:  assigned
  Priority:  Normal      |  Milestone:
 Component:  ports       |    Version:  2.6.2
Resolution:              |   Keywords:
      Port:  perl5.30    |
-------------------------+----------------------

Comment (by ryandesign):

 > Are you sure this happens with perl modules in general?

 No, I am not sure.

 > You'll notice the configure phase is correctly showing /opt/local/bin
 /clang-mp-9.0 in use.

 That's my point: the configure phase shows that the correct compiler is
 selected, yet by the build phase, the compiler that had been used to
 compile perl5.30 got used instead. Certainly the p5-perlmagick port does
 not specify clang-3.4, neither does the perlmagick build system, so the
 clang-3.4 compiler choice has to be coming from perl5.30's config files,
 and it seems to me that the bug is either perl5.30 doing that, or the
 perl5 portgroup not sufficiently overriding that.

 Note that the problem does not occur with perl5.28:

 {{{
 $ sudo port -nd build subport=p5.28-perlmagick configure.compiler
 =macports-clang-8.0
 ...
 DEBUG: Using compiler 'MacPorts Clang 8.0'
 ...
 checking for gcc... /opt/local/bin/clang-mp-8.0
 ...
 /opt/local/bin/clang-mp-8.0 -c -I../ -I..   -DMAGICKCORE_HDRI_ENABLE=0
 -DMAGICKCORE_QUANTUM_DEPTH=16  -I/opt/local/include  -I../../ -I../..
 -DMAGICKCORE_HDRI_ENABLE=0 -DMAGICKCORE_QUANTUM_DEPTH=16
 -I/opt/local/include -fno-common -DPERL_DARWIN -mmacosx-version-min=10.13
 -pipe -Os   -fno-strict-aliasing -fstack-protector-strong
 -I/opt/local/include -DPERL_USE_SAFE_PUTENV -I/opt/local/include/libxml2
 -I/opt/local/include -I/opt/local/include -I/opt/local/include/libraw
 -I/opt/local/include -I/opt/local/include/libpng16 -I/opt/local/include
 -I/opt/local/include/pango-1.0 -I/opt/local/include/harfbuzz
 -I/opt/local/include -I/opt/local/include/pango-1.0
 -I/opt/local/include/fribidi -I/opt/local/include/cairo
 -I/opt/local/include/glib-2.0 -I/opt/local/lib/glib-2.0/include
 -I/opt/local/include -I/opt/local/include/pixman-1 -I/opt/local/include
 -I/opt/local/include/ossp -I/opt/local/include/freetype2
 -I/opt/local/include/libpng16 -I/opt/local/include -D_THREAD_SAFE
 -I/opt/local/include/OpenEXR -I/opt/local/include
 -I/opt/local/include/openjpeg-2.3 -I/opt/local/include
 -I/opt/local/include/graphviz -I/opt/local/include/freetype2
 -I/opt/local/include/libpng16 -I/opt/local/include -I/opt/local/include
 -I/opt/local/include/ossp -I/opt/local/include/freetype2
 -I/opt/local/include/libpng16 -I/opt/local/include -I/opt/local/include
 -I/opt/local/include  -I/opt/local/include   -g -O2 -Wall -fexceptions
 -D_FORTIFY_SOURCE=0 -pthread -DMAGICKCORE_HDRI_ENABLE=0
 -DMAGICKCORE_QUANTUM_DEPTH=16 -arch x86_64 -arch i386 -isysroot/ -O3
 -DVERSION=\"6.9.10\" -DXS_VERSION=\"6.9.10\"  "-I/opt/local/lib/perl5/5.28
 /darwin-thread-multi-2level/CORE" -D_LARGE_FILES=1 -DHAVE_CONFIG_H
 -D_LARGE_FILES=1 -DHAVE_CONFIG_H Q16.c
 }}}

 But it does happen with perl5.30:

 {{{
 $ sudo port -nd build subport=p5.30-perlmagick configure.compiler
 =macports-clang-8.0
 ...
 DEBUG: Using compiler 'MacPorts Clang 8.0'
 ...
 checking for gcc... /opt/local/bin/clang-mp-8.0
 ...
 /usr/bin/clang -c -I../ -I..   -DMAGICKCORE_HDRI_ENABLE=0
 -DMAGICKCORE_QUANTUM_DEPTH=16  -I/opt/local/include  -I../../ -I../..
 -DMAGICKCORE_HDRI_ENABLE=0 -DMAGICKCORE_QUANTUM_DEPTH=16
 -I/opt/local/include -fno-common -DPERL_DARWIN -mmacosx-version-min=10.13
 -pipe -Os   -fno-strict-aliasing -fstack-protector-strong
 -I/opt/local/include -DPERL_USE_SAFE_PUTENV -I/opt/local/include/libxml2
 -I/opt/local/include -I/opt/local/include -I/opt/local/include/libraw
 -I/opt/local/include -I/opt/local/include/libpng16 -I/opt/local/include
 -I/opt/local/include/pango-1.0 -I/opt/local/include/harfbuzz
 -I/opt/local/include -I/opt/local/include/pango-1.0
 -I/opt/local/include/fribidi -I/opt/local/include/cairo
 -I/opt/local/include/glib-2.0 -I/opt/local/lib/glib-2.0/include
 -I/opt/local/include -I/opt/local/include/pixman-1 -I/opt/local/include
 -I/opt/local/include/ossp -I/opt/local/include/freetype2
 -I/opt/local/include/libpng16 -I/opt/local/include -D_THREAD_SAFE
 -I/opt/local/include/OpenEXR -I/opt/local/include
 -I/opt/local/include/openjpeg-2.3 -I/opt/local/include
 -I/opt/local/include/graphviz -I/opt/local/include/freetype2
 -I/opt/local/include/libpng16 -I/opt/local/include -I/opt/local/include
 -I/opt/local/include/ossp -I/opt/local/include/freetype2
 -I/opt/local/include/libpng16 -I/opt/local/include -I/opt/local/include
 -I/opt/local/include  -I/opt/local/include   -g -O2 -Wall -fexceptions
 -D_FORTIFY_SOURCE=0 -pthread -DMAGICKCORE_HDRI_ENABLE=0
 -DMAGICKCORE_QUANTUM_DEPTH=16 -arch x86_64 -arch i386 -isysroot/ -O3
 -DVERSION=\"6.9.10\" -DXS_VERSION=\"6.9.10\"  "-I/opt/local/lib/perl5/5.30
 /darwin-thread-multi-2level/CORE" -D_LARGE_FILES=1 -DHAVE_CONFIG_H
 -D_LARGE_FILES=1 -DHAVE_CONFIG_H Q16.c
 }}}

 This suggests to me that the bug is in perl5.30, not the perl5 portgroup.

-- 
Ticket URL: <https://trac.macports.org/ticket/59786#comment:2>
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