Ticket #50953: change-gambit-c-compiler.diff

Portfile

@@ -25 +25 @@
                         implemented, including: infinite precision integers \
                         (bignums), rationals, inexact reals (floating point \
                         numbers), and complex numbers.
+notes                   "It is highly recommended to use the gcc5 compiler\
+                        with gambit-c.  This recommendation applies to both\
+                        building the gambit-c package, and to compiling\
+                        Scheme code with it.  For details see\
+                        https://trac.macports.org/ticket/50953"
 
 homepage                http://dynamo.iro.umontreal.ca/~gambit/wiki/index.php/Main_Page
 
 platforms               darwin
-depends_build           port:autoconf
+depends_build           port:autoconf port:gcc5
 
 master_sites            http://www.iro.umontreal.ca/~gambit/download/gambit/v${branch}/source/
 distname                gambc-v[strsed ${version} {g/\./_/}]-devel
@@ -38 +43 @@
 checksums           rmd160  aae275226d9cee234ed082de7f73bc52270576d5 \
                     sha256  1c67c361c99d3d428a5c3fea4caa7791ada4963dcaf1f1ddb9becc1a89991625
 
-# https://trac.macports.org/ticket/46013
-compiler.blacklist {clang < 600} *llvm-gcc-4.2
+# https://trac.macports.org/ticket/50953
+compiler.whitelist macports-gcc-5
 
 configure.args          --infodir=${prefix}/share/info \
                         --libdir=${prefix}/lib/gambit-c \
+                        --enable-single-host \
                         --docdir=${prefix}/share/doc
 
-if {[string match *gcc* ${configure.compiler}]} {
-    configure.args-append --enable-single-host
-}
-
 use_parallel_build      no
 # gsc conficts with a binary installed by Ghostscript. Recommended
 # option (based on mailing list posts from Arch Linux and FreeBSD
@@ -90 +92 @@
     configure.args-append --enable-profile
 }
 
+variant cpp description "Compile with support for linking with C++ code" {
+    configure.args-append --enable-cplusplus
+}
+
 livecheck.type      regex
 livecheck.regex     (\\d+\\.\\d+\\.\\d+)
 livecheck.url       ${homepage}