1 files changed, 113 insertions, 0 deletions
diff --git a/app-antivirus/clamav/files/clamav-0.102.3-system-tomsfastmath.patch b/app-antivirus/clamav/files/clamav-0.102.3-system-tomsfastmath.patch
new file mode 100644
index 000000000000..ee575c3b1287
--- /dev/null
+++ b/app-antivirus/clamav/files/clamav-0.102.3-system-tomsfastmath.patch
@@ -0,0 +1,113 @@
+From bcf63fa6bbd519bc61c2b2553fb1913f802eb96e Mon Sep 17 00:00:00 2001
+From: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>
+Date: Wed, 11 Mar 2015 20:03:15 +0100
+Subject: add support for system tomsfastmath
+
+Patch-Name: add-support-for-system-tomsfastmath.patch
+---
+ configure.ac                           |  2 ++
+ libclamav/Makefile.am                  | 10 ++++++++--
+ libclamav/bignum.h                     |  6 +++++-
+ libclamav/xdp.c                        |  2 +-
+ m4/reorganization/libs/tomsfastmath.m4 | 12 ++++++++++++
+ 5 files changed, 28 insertions(+), 4 deletions(-)
+ create mode 100644 m4/reorganization/libs/tomsfastmath.m4
+
+diff --git a/configure.ac b/configure.ac
+index 8375971..3cacfb8 100644
+--- a/configure.ac
++++ b/configure.ac
+@@ -98,6 +98,7 @@ m4_include([m4/reorganization/libs/libmspack.m4])
+ if test "x$use_internal_mspack" = "xno"; then
+     mspack_msg="External, $LIBMSPACK_CFLAGS $LIBMSPACK_LIBS"
+ fi
++m4_include([m4/reorganization/libs/tomsfastmath.m4])
+ 
+ AM_MAINTAINER_MODE
+ m4_include([m4/reorganization/libs/libz.m4])
+@@ -356,6 +357,7 @@ fi
+ CL_MSG_STATUS([yara        ],[$enable_yara],[$enable_yara])
+ CL_MSG_STATUS([fts         ],[yes],[$lfs_fts_msg])
+ 
++CL_MSG_STATUS([tomsfastmath],[yes],[$tomsfastmath_msg])
+ 
+ # Yep, downgrading the compiler avoids the bug too:
+ # 4.0.x, and 4.1.0 are the known buggy versions
+diff --git a/libclamav/Makefile.am b/libclamav/Makefile.am
+index 699d033..3282272 100644
+--- a/libclamav/Makefile.am
++++ b/libclamav/Makefile.am
+@@ -602,8 +602,10 @@ libclamav_la_SOURCES += yara_arena.c \
+ 	yara_clam.h
+ endif
+ 
+-libclamav_la_SOURCES += bignum.h\
+-	bignum_fast.h\
++libclamav_la_SOURCES += bignum.h
++
++if !SYSTEM_TOMSFASTMATH
++libclamav_la_SOURCES += bignum_fast.h\
+         tomsfastmath/addsub/fp_add.c\
+         tomsfastmath/addsub/fp_add_d.c\
+         tomsfastmath/addsub/fp_addmod.c\
+@@ -685,6 +687,10 @@ libclamav_la_SOURCES += bignum.h\
+         tomsfastmath/sqr/fp_sqr_comba_generic.c\
+         tomsfastmath/sqr/fp_sqr_comba_small_set.c\
+ 	tomsfastmath/sqr/fp_sqrmod.c
++else
++libclamav_la_CFLAGS += $(TOMSFASTMATH_CFLAGS)
++libclamav_la_LIBADD += $(TOMSFASTMATH_LIBS)
++endif
+ 
+ .PHONY2: version.h.tmp
+ version.c: version.h
+diff --git a/libclamav/bignum.h b/libclamav/bignum.h
+index 8fdc956..56dfa95 100644
+--- a/libclamav/bignum.h
++++ b/libclamav/bignum.h
+@@ -1,9 +1,13 @@
+ #ifndef BIGNUM_H_
+ #define BIGNUM_H_
+ 
++#if HAVE_SYSTEM_TOMSFASTMATH
++#include <tfm.h>
++#else
+ #define TFM_CHECK
+-
+ #include "bignum_fast.h"
++#endif
++
+ typedef fp_int mp_int;
+ #define mp_cmp fp_cmp
+ #define mp_toradix_n(a, b, c, d) fp_toradix_n(a, b, c, d)
+diff --git a/libclamav/xdp.c b/libclamav/xdp.c
+index d5a4c4b..cc3b40d 100644
+--- a/libclamav/xdp.c
++++ b/libclamav/xdp.c
+@@ -52,7 +52,7 @@
+ #include "scanners.h"
+ #include "conv.h"
+ #include "xdp.h"
+-#include "bignum_fast.h"
++#include "bignum.h"
+ #include "filetypes.h"
+ 
+ static char *dump_xdp(cli_ctx *ctx, const char *start, size_t sz);
+diff --git a/m4/reorganization/libs/tomsfastmath.m4 b/m4/reorganization/libs/tomsfastmath.m4
+new file mode 100644
+index 0000000..2a821a1
+--- /dev/null
++++ b/m4/reorganization/libs/tomsfastmath.m4
+@@ -0,0 +1,12 @@
++dnl Check for system tomsfastmath
++PKG_CHECK_MODULES([TOMSFASTMATH], [tomsfastmath], [have_system_tomsfastmath=yes], [have_system_tomsfastmath=no])
++
++AM_CONDITIONAL([SYSTEM_TOMSFASTMATH], [test "x$have_system_tomsfastmath" = "xyes"])
++
++if test "x$have_system_tomsfastmath" = "xyes"; then
++    AC_DEFINE([HAVE_SYSTEM_TOMSFASTMATH], [1], [link against system-wide tomsfastmath library])
++    tomsfastmath_msg="External, $TOMSFASTMATH_CFLAGS $TOMSFASTMATH_LIBS"
++else
++    AC_DEFINE([HAVE_SYSTEM_TOMSFASTMATH], [0], [don't link against system-wide tomsfastmath library])
++    tomsfastmath_msg="Internal"
++fi