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Diffstat (limited to 'app-antivirus/clamav/files/clamav-0.103.0-system-tomsfastmath.patch')
-rw-r--r--app-antivirus/clamav/files/clamav-0.103.0-system-tomsfastmath.patch115
1 files changed, 115 insertions, 0 deletions
diff --git a/app-antivirus/clamav/files/clamav-0.103.0-system-tomsfastmath.patch b/app-antivirus/clamav/files/clamav-0.103.0-system-tomsfastmath.patch
new file mode 100644
index 000000000000..ad9276c1ad01
--- /dev/null
+++ b/app-antivirus/clamav/files/clamav-0.103.0-system-tomsfastmath.patch
@@ -0,0 +1,115 @@
+From 70cc96407302cf0fd4eee2b6a401253ed50fe4df Mon Sep 17 00:00:00 2001
+From: Michael Orlitzky <michael@orlitzky.com>
+Date: Sun, 20 Sep 2020 11:16:06 -0400
+Subject: [PATCH 1/1] autotools: use system tomsfastmath if possible.
+
+---
+ 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 8e0e810f8..773787e49 100644
+--- a/configure.ac
++++ b/configure.ac
+@@ -104,6 +104,7 @@ m4_include([m4/reorganization/libs/libmspack.m4])
+ if test "x$use_internal_mspack" = "xno"; then
+ mspack_msg="External, $LIBMSPACK_CFLAGS $LIBMSPACK_LIBS"
+ fi
++m4_include([m4/reorganization/libs/tomsfastmath.m4])
+
+ AM_MAINTAINER_MODE
+ m4_include([m4/reorganization/libs/libz.m4])
+@@ -376,6 +377,7 @@ fi
+ CL_MSG_STATUS([yara ],[$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 ae655cfec..240fa23f8 100644
+--- a/libclamav/Makefile.am
++++ b/libclamav/Makefile.am
+@@ -588,8 +588,10 @@ 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\
+@@ -671,6 +673,10 @@ 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 += $(TOMSFASTMATH_LIBS)
++endif
+
+ .PHONY2: version.h.tmp
+ version.c: version.h
+diff --git a/libclamav/bignum.h b/libclamav/bignum.h
+index 8fdc956bb..56dfa957e 100644
+--- a/libclamav/bignum.h
++++ b/libclamav/bignum.h
+@@ -1,9 +1,13 @@
+ #ifndef BIGNUM_H_
+ #define BIGNUM_H_
+
++#if HAVE_SYSTEM_TOMSFASTMATH
++#include <tfm.h>
++#else
+ #define TFM_CHECK
+-
+ #include "bignum_fast.h"
++#endif
++
+ typedef fp_int mp_int;
+ #define mp_cmp fp_cmp
+ #define mp_toradix_n(a, b, c, d) fp_toradix_n(a, b, c, d)
+diff --git a/libclamav/xdp.c b/libclamav/xdp.c
+index 87423421d..6370221ff 100644
+--- a/libclamav/xdp.c
++++ b/libclamav/xdp.c
+@@ -52,7 +52,7 @@
+ #include "scanners.h"
+ #include "conv.h"
+ #include "xdp.h"
+-#include "bignum_fast.h"
++#include "bignum.h"
+ #include "filetypes.h"
+
+ static char *dump_xdp(cli_ctx *ctx, const char *start, size_t sz);
+diff --git a/m4/reorganization/libs/tomsfastmath.m4 b/m4/reorganization/libs/tomsfastmath.m4
+new file mode 100644
+index 000000000..2a821a14d
+--- /dev/null
++++ b/m4/reorganization/libs/tomsfastmath.m4
+@@ -0,0 +1,12 @@
++dnl Check for system tomsfastmath
++PKG_CHECK_MODULES([TOMSFASTMATH], [tomsfastmath], [have_system_tomsfastmath=yes], [have_system_tomsfastmath=no])
++
++AM_CONDITIONAL([SYSTEM_TOMSFASTMATH], [test "x$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
+--
+2.26.2
+