gperftools: enable tests; fix for Rosetta

devel/gperftools/Portfile

@@ -17,5 +17,10 @@ checksums           rmd160  54e35f78813b5409bc6f82e0894b0b8e42ad711a \
                     sha256  83e3bfdd28b8bcf53222c3798d4d395d52dadbbae59e8730c4a6d31a9c3732d8 \
                     size    1616679
 
+patchfiles          patch-rosetta.diff
+
 compiler.cxx_standard \
                     2011
+
+test.run            yes
+test.target         check

devel/gperftools/files/patch-rosetta.diff

@@ -0,0 +1,15 @@
+--- src/libc_override_osx.h.orig	2021-12-13 14:28:06.000000000 +0800
++++ src/libc_override_osx.h	2023-01-19 20:14:36.000000000 +0800
+@@ -276,9 +276,11 @@
+     MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_6
+   // Switch to version 6 on OSX 10.6 to support memalign.
+   tcmalloc_zone.version = 6;
+-  tcmalloc_zone.free_definite_size = &mz_free_definite_size;
+   tcmalloc_zone.memalign = &mz_memalign;
++#ifndef __POWERPC__
++  tcmalloc_zone.free_definite_size = &mz_free_definite_size;
+   tcmalloc_introspection.zone_locked = &mi_zone_locked;
++#endif
+
+   // Request the default purgable zone to force its creation. The
+   // current default zone is registered with the purgable zone for