ape: Select cc and cpp from compilers PortGroup rather than preproces…

…sing with default cc, which did not work on some OS versions.

git-svn-id: https://svn.macports.org/repository/macports/trunk/dports@131696 d073be05-634f-4543-b044-5fe20cf6d1d6

science/ape/Portfile

@@ -30,9 +30,9 @@ depends_lib         port:libxc port:gsl
 configure.args      --with-libxc-prefix=${prefix}
 configure.optflags  -O3
 
-# uses C too, could introduce variants for that too.
-compilers.choose    fc
-compilers.setup     require_fortran -g95
+# uses C too, could introduce variants for that too. would need to sort out FCCPP usage.
+compilers.choose    fc cc cpp
+compilers.setup     require_fortran -g95 -clang -gfortran -llvm
 
 # g95 is disabled because of constructs regarded as illegal by this compiler.
 # :info:build In file mesh_ape.f90:58
@@ -54,7 +54,7 @@ pre-configure {
 #    if {[variant_isset g95]} {
 #        configure.args-append  FCCPP="${configure.cc} -P -E -ansi"
 #    } else {
-        configure.args-append  FCCPP="${configure.cc} -E -ansi"
+        configure.args-append  FCCPP="${configure.cpp} -ansi"
 #    }
 }