[MacPorts] #69459: man @1.6g_2+xcode build failure: type name requires a specifier or qualifier

[MacPorts]

#69459: man @1.6g_2+xcode build failure: type name requires a specifier or
qualifier
---------------------+--------------------
  Reporter:  jf      |      Owner:  (none)
      Type:  defect  |     Status:  new
  Priority:  Normal  |  Milestone:
 Component:  ports   |    Version:  2.9.1
Resolution:          |   Keywords:
      Port:  man     |
---------------------+--------------------

Comment (by rswail):

 This bug is related to the declaration of `uid_t` (and others), in the
 configuration scripts.

 The conf_script is constructed with the following line in it:

 `s, at DEFS@, -DUSG -Duid_t= -Dgid_t= -DALLOCA_MISSING -DNONLS -DNOGETOPT
 -DDO_COMPRESS,`

 That file is created by the configure script which has the following code
 in it:
 {{{
   echo checking whether sys/types.h defines uid_t
   echo '#include <sys/types.h>
   #include <stdlib.h>
   main() { uid_t x; exit(0); }' > conftest.c
   eval $compile
   if test -s conftest && ./conftest 2>/dev/null; then :
   else
     uid_t=`awk '/pw_uid;/ {print $1}' $INCLUDEDIR/pwd.h`
     DEFS="$DEFS -Duid_t=${uid_t} -Dgid_t=${uid_t}"
   fi
   rm -f conftest conftest.c
 }}}

 That fails in clang with the following error:
 {{{
 conftest.c:3:1: error: type specifier missing, defaults to 'int'; ISO C99
 and later do not support implicit int [-Wimplicit-int]
     3 | main() { uid_t x; exit(0); }
       | ^
       | int
 1 error generated.
 }}}

 The patch to the original configure script is by patching with (sed):

 `s,^main(),int main(),`

 which will correct the 7 uses of this construct in the original configure
 script.

-- 
Ticket URL: <https://trac.macports.org/ticket/69459#comment:6>
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