Ticket #21657: Portfile.diff

Portfile

@@ -37 +37 @@
                         --enable-single-host \
                         --docdir=${prefix}/share/doc
 
+# gsc conficts with a binary installed by Ghostscript. Recommended
+# option (based on mailing list posts from Arch Linux and FreeBSD
+# projects) is to rename gsc to gambit-gsc
+set gsc "gambit-gsc"
+set gsi "gambit-gsi"
+
 post-extract {
     # Get rid of the incompatible version-specific installation structure
     reinplace "s|PACKAGE_SUBDIR=\"/${version}\"|PACKAGE_SUBDIR=\"\"|g" ${worksrcpath}/configure.ac
     reinplace "s|&& \$(LN_S) \.\$(PACKAGE_SUBDIR) current||g" ${worksrcpath}/makefile.in
     reinplace "s|rm -f \$(prefix)/current \$(prefix)/current.lnk||g" ${worksrcpath}/makefile.in
+    reinplace "s|.B gsc|.B ${gsc}|g" ${worksrcpath}/doc/gsi.1
 
     # Fix target paths since the configure options are not properly used in the makefiles
     foreach makefile [exec find ${worksrcpath} -name makefile.in] {
@@ -53 +60 @@
     }
 }
 
+post-destroot {
+    file rename "${destroot}${prefix}/bin/gsc" "${destroot}${prefix}/bin/${gsc}"
+    file delete "${destroot}${prefix}/bin/gsc-script"
+    ln -s "${gsc}" "${destroot}${prefix}/bin/gsc-script"
+    # Create a matching link for gambit-gsi for symmetry, even though the
+    # original gsi binary doesn't conflict and isn't being removed.
+    ln -s "gsi" "${destroot}${prefix}/bin/${gsi}"
+}
+
 variant optimized description "Use expensive GCC optimizations to improve speed and compactness" {
     configure.args-append --enable-gcc-opts
 }