[MacPorts] #61216: Virtuoso-7 fail to install on OS 10.15 with XCode 12.0

[MacPorts]

#61216: Virtuoso-7 fail to install on OS 10.15 with XCode 12.0
-------------------------+--------------------
  Reporter:  JacquesLB   |      Owner:  (none)
      Type:  defect      |     Status:  new
  Priority:  Normal      |  Milestone:
 Component:  ports       |    Version:  2.6.3
Resolution:              |   Keywords:
      Port:  virtuoso-7  |
-------------------------+--------------------

Comment (by chrstphrchvz):

 I can reproduce the error:
 {{{
  /usr/bin/clang -DHAVE_CONFIG_H -I. -I../../libsrc/Dk
 -I/opt/local/include/openssl-1.0 -I/opt/local/include
 -isysroot/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk -fno-
 strict-aliasing -O2 -Wall -DNDEBUG -DPOINTER_64
 -I/opt/local/var/macports/build/_opt_local_var_macports_sources_github
 .com_macports_macports-ports_devel_virtuoso-7/virtuoso-7/work/virtuoso-
 opensource-7.2.5/libsrc/Xml.new -DOPENSSL_NO_KRB5 -I../../libsrc
 -I../../libsrc/Dk -I../../libsrc/zlib -I. -I../../libsrc/langfunc
 -I../../libsrc/plugin -I../../libsrc/Tidy -I../../libsrc/Xml.new
 -I../../libsrc/odbcsdk/include -DVAD -DDBP -DBIF_XPER -DOPSYS=\"Darwin\"
 -DHOST=\"x86_64-apple-darwin19.6.0\" -pipe -Os
 -isysroot/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk -arch
 x86_64 -MT libwi_la-numeric.lo -MD -MP -MF .deps/libwi_la-numeric.Tpo -c
 numeric.c  -fno-common -DPIC -o .libs/libwi_la-numeric.o
 numeric.c:1527:12: error: implicit declaration of function 'stricmp' is
 invalid in C99 [-Werror,-Wimplicit-function-declaration]
       if (!stricmp (cp, "INF") || !stricmp (cp, "Infinity"))
            ^
 numeric.c:1680:29: error: implicit declaration of function 'stricmp' is
 invalid in C99 [-Werror,-Wimplicit-function-declaration]
   if (!isdigit (cp[0]) && (!stricmp (cp, "INF") || !stricmp (cp,
 "Infinity") || !stricmp (cp, "NaN")))
                             ^
 2 errors generated.
 }}}

 My guess is that it is waiting until linking to use the `stricmp()`
 implementation from libsrc/util/stricmp.c, and isn't providing a header
 file to declare it.

-- 
Ticket URL: <https://trac.macports.org/ticket/61216#comment:1>
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