Add four knobs (WITH_THREADING, WITH_PARALLEL_MARK, WITH_REDIRECT and WITH_FULLDEBUG).

Use OPTIONS.
Fix a bug in leak detection.

Submitted by:	green

devel/boehm-gc/Makefile

@@ -7,6 +7,7 @@
 
 PORTNAME=	boehm-gc
 PORTVERSION=	6.2
+PORTREVISION=	1
 CATEGORIES=	devel
 MASTER_SITES=	http://www.hpl.hp.com/personal/Hans_Boehm/gc/gc_source/
 DISTNAME=	gc${PORTVERSION:S/.a/alpha/}
@@ -18,12 +19,34 @@ USE_LIBTOOL_VER=	13
 USE_REINPLACE=	yes
 HAS_CONFIGURE=	yes
 INSTALLS_SHLIB=	yes
-CONFIGURE_ARGS=	--prefix=${PREFIX} --disable-threads --enable-cplusplus
-
-MAN3=		gc.3
+CONFIGURE_ARGS=	--prefix=${PREFIX} --enable-cplusplus
+OPTIONS=	REDIRECT "Define malloc(3)-family replacements" no \
+		FULLDEBUG "full-debug support (see documentation)" no \
+		THREADING "POSIX thread support" no \
+		PARALLEL_MARK "Parallel-thread marking (faster for SMP)" yes
 
 .include <bsd.port.pre.mk>
 
+.ifdef WITH_THREADING
+CONFIGURE_ARGS+=	--enable-threads=posix --enable-thread-local-alloc
+.ifdef WITH_PARALLEL_MARK
+CONFIGURE_ARGS+=	--enable-parallel-mark
+.endif
+PKGNAMESUFFIX=	+threaded
+.else
+CONFIGURE_ARGS+=	--disable-threads
+.endif
+.ifdef WITH_REDIRECT
+CONFIGURE_ARGS+=	--enable-redirect-malloc
+PKGNAMESUFFIX:=${PKGNAMESUFFIX}+redirect
+.endif
+.ifdef WITH_FULLDEBUG
+CONFIGURE_ARGS+=	--enable-full-debug
+PKGNAMESUFFIX:=${PKGNAMESUFFIX}+fulldebug
+.endif
+
+MAN3=		gc.3
+
 .if ${ARCH} != "i386" && ${ARCH} != "alpha" && ${ARCH} != "amd64"
 BROKEN=		"Does not compile on !i386 and !alpha and !amd64"
 .endif

devel/boehm-gc/files/patch-dbg_mlc.c

@@ -0,0 +1,82 @@
+--- dbg_mlc.c.orig	Tue May 13 16:59:49 2003
++++ dbg_mlc.c	Wed May 12 20:13:19 2004
+@@ -414,6 +414,23 @@
+     GC_register_displacement((word)sizeof(oh) + offset);
+ }
+ 
++#if defined(__FreeBSD__)
++#include <dlfcn.h>
++static void GC_caller_func_offset(ad, symp, offp)
++const GC_word ad;
++const char **symp;
++int *offp;
++{
++    Dl_info caller;
++    if (dladdr((const void *)ad, &caller) && caller.dli_sname != NULL) {
++      *symp = caller.dli_sname;
++      *offp = (const char *)ad - (const char *)caller.dli_saddr;
++    }
++}
++#else
++#define GC_caller_func(ad, symp, offp)
++#endif
++
+ # ifdef __STDC__
+     GC_PTR GC_debug_malloc(size_t lb, GC_EXTRA_PARAMS)
+ # else
+@@ -428,6 +445,13 @@
+ {
+     GC_PTR result = GC_malloc(lb + DEBUG_BYTES);
+     
++#ifdef GC_ADD_CALLER
++    if (s == NULL) {
++      GC_caller_func_offset(ra, &s, &i);
++      if (s == NULL)
++        s = "unknown";
++    }
++#endif
+     if (result == 0) {
+         GC_err_printf1("GC_debug_malloc(%ld) returning NIL (",
+         	       (unsigned long) lb);
+@@ -789,6 +813,13 @@
+     register size_t old_sz;
+     register hdr * hhdr;
+     
++#ifdef GC_ADD_CALLER
++    if (s == NULL) {
++      GC_caller_func_offset(ra, &s, &i);
++      if (s == NULL)
++        s = "unknown";
++    }
++#endif
+     if (p == 0) return(GC_debug_malloc(lb, OPT_RA s, i));
+     if (base == 0) {
+         GC_err_printf1(
+@@ -1094,7 +1125,11 @@
+ }
+ 
+ #ifdef GC_ADD_CALLER
+-# define RA GC_RETURN_ADDR,
++# ifdef GC_RETURN_ADDR_PARENT
++#  define RA GC_RETURN_ADDR_PARENT,
++# else
++#  define RA GC_RETURN_ADDR,
++# endif
+ #else
+ # define RA
+ #endif
+@@ -1102,12 +1137,12 @@
+ GC_PTR GC_debug_malloc_replacement(lb)
+ size_t lb;
+ {
+-    return GC_debug_malloc(lb, RA "unknown", 0);
++    return GC_debug_malloc(lb, RA NULL, 0);
+ }
+ 
+ GC_PTR GC_debug_realloc_replacement(p, lb)
+ GC_PTR p;
+ size_t lb;
+ {
+-    return GC_debug_realloc(p, lb, RA "unknown", 0);
++    return GC_debug_realloc(p, lb, RA NULL, 0);
+ }

devel/boehm-gc/files/patch-include-gc.h

@@ -0,0 +1,10 @@
+--- include/gc.h.orig	Wed Jun  4 17:07:33 2003
++++ include/gc.h	Wed May 12 20:03:22 2004
+@@ -487,6 +487,7 @@
+     /* gcc knows how to retrieve return address, but we don't know */
+     /* how to generate call stacks.				   */
+ #   define GC_RETURN_ADDR (GC_word)__builtin_return_address(0)
++#   define GC_RETURN_ADDR_PARENT (GC_word)__builtin_return_address(1)
+ # else
+     /* Just pass 0 for gcc compatibility. */
+ #   define GC_RETURN_ADDR 0