[MacPorts] #53157: recent base master cannot set configure.compiler from the command line

[MacPorts]

#53157: recent base master cannot set configure.compiler from the command line
----------------------+-----------------
 Reporter:  jeremyhu  |      Owner:
     Type:  defect    |     Status:  new
 Priority:  Normal    |  Milestone:
Component:  base      |    Version:
 Keywords:            |       Port:
----------------------+-----------------
 I'm unable to set configure.compiler from the command line like I used to
 be able to:

 {{{
 ~ $ sudo port -v -s build gnutls configure.compiler=macports-clang-3.7
 --->  Computing dependencies for gnutls.
 --->  Fetching distfiles for gnutls
 --->  Verifying checksums for gnutls
 --->  Checksumming gnutls-3.4.17.tar.xz
 --->  Extracting gnutls
 --->  Extracting gnutls-3.4.17.tar.xz
 Executing:  cd "/opt/local/var/macports/build
 /_Users_jeremy_src_macports_macports-ports_devel_gnutls/gnutls/work" &&
 /opt/local/bin/xz -dc
 '/opt/local/var/macports/distfiles/gnutls/gnutls-3.4.17.tar.xz' |
 /usr/bin/gnutar --no-same-owner -xf -
 --->  Applying patches to gnutls
 --->  Applying patch-tests-pkcs11-pkcs11-mock.c.diff
 Executing:  cd "/opt/local/var/macports/build
 /_Users_jeremy_src_macports_macports-
 ports_devel_gnutls/gnutls/work/gnutls-3.4.17" && /usr/bin/patch -p0 <
 '/Users/jeremy/src/macports/macports-ports/devel/gnutls/files/patch-tests-
 pkcs11-pkcs11-mock.c.diff'
 patching file tests/pkcs11/pkcs11-mock.c
 --->  Patching aes-ssse3-x86.s: /^#/d
 --->  Patching aes-ssse3-x86_64.s: /^#/d
 --->  Patching aesni-x86.s: /^#/d
 --->  Patching aesni-x86_64.s: /^#/d
 --->  Patching cpuid-x86.s: /^#/d
 --->  Patching cpuid-x86_64.s: /^#/d
 --->  Patching e_padlock-x86.s: /^#/d
 --->  Patching e_padlock-x86_64.s: /^#/d
 --->  Patching ghash-x86_64.s: /^#/d
 --->  Patching sha1-ssse3-x86.s: /^#/d
 --->  Patching sha1-ssse3-x86_64.s: /^#/d
 --->  Patching sha256-ssse3-x86.s: /^#/d
 --->  Patching sha512-ssse3-x86.s: /^#/d
 --->  Patching sha512-ssse3-x86_64.s: /^#/d
 --->  Configuring gnutls
 Error: Failed to configure gnutls: Invalid value for configure.compiler:
 "macports-clang-3.7"
 Error: See /opt/local/var/macports/logs
 /_Users_jeremy_src_macports_macports-ports_devel_gnutls/gnutls/main.log
 for details.
 Error: Follow https://guide.macports.org/#project.tickets to report a bug.
 Error: Processing of port gnutls failed
 }}}

--
Ticket URL: <https://trac.macports.org/ticket/53157>
MacPorts <https://www.macports.org/>
Ports system for macOS