enabled JIT; added patches to fix instruction detection on x86 and thread safety problem [release 10.43-2mamba;Mon Apr 29 2024]
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32
pcre2-10.43-fix_locking_region_in_sjlit_malloc_exec.patch
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32
pcre2-10.43-fix_locking_region_in_sjlit_malloc_exec.patch
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From ad89dd8ecd25589d236bd20b36f2abf69f938fd1 Mon Sep 17 00:00:00 2001
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From: lbonn <lbonn@users.noreply.github.com>
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Date: Tue, 2 Apr 2024 12:55:33 +0200
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Subject: [PATCH] Fix locking region in sjlit_malloc_exec (#244)
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The locked section needs to extend until we are done modifying internal
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block offsets and sizes, otherwise we risk running into data corruption
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in a multi-threaded context.
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This bug was introduced in 7de0fee9a7376b33e31a3903487cd9933da3a606
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---
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sljit_src/allocator_src/sljitExecAllocatorCore.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/sljit_src/allocator_src/sljitExecAllocatorCore.c b/sljit_src/allocator_src/sljitExecAllocatorCore.c
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index 32c29fb6..4e1119bc 100644
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--- a/sljit_src/allocator_src/sljitExecAllocatorCore.c
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+++ b/sljit_src/allocator_src/sljitExecAllocatorCore.c
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@@ -235,12 +235,12 @@ SLJIT_API_FUNC_ATTRIBUTE void* sljit_malloc_exec(sljit_uw size)
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header->size = chunk_size;
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next_header = AS_BLOCK_HEADER(header, chunk_size);
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}
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- SLJIT_ALLOCATOR_UNLOCK();
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next_header->size = 1;
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next_header->prev_size = chunk_size;
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#ifdef SLJIT_HAS_EXECUTABLE_OFFSET
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next_header->executable_offset = executable_offset;
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#endif /* SLJIT_HAS_EXECUTABLE_OFFSET */
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+ SLJIT_ALLOCATOR_UNLOCK();
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return MEM_START(header);
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}
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83
pcre2-10.43-x86_xgetbv_feature_detection.patch
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83
pcre2-10.43-x86_xgetbv_feature_detection.patch
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From 56dbde07b05252f0b304b04040a86cfb9f109ae9 Mon Sep 17 00:00:00 2001
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From: Zoltan Herczeg <hzmester@freemail.hu>
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Date: Sat, 23 Mar 2024 07:51:02 +0000
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Subject: [PATCH] Add xgetbv feature detection support on x86
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---
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sljit_src/sljitNativeX86_common.c | 42 +++++++++++++++++++++++++++++++
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1 file changed, 42 insertions(+)
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diff --git a/sljit_src/sljitNativeX86_common.c b/sljit_src/sljitNativeX86_common.c
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index 3d5c02b7..de519e6b 100644
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--- a/sljit_src/sljitNativeX86_common.c
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+++ b/sljit_src/sljitNativeX86_common.c
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@@ -391,6 +391,7 @@ static const sljit_u8 freg_lmap[SLJIT_NUMBER_OF_FLOAT_REGISTERS + 2] = {
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#define CPU_FEATURE_CMOV 0x020
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#define CPU_FEATURE_AVX 0x040
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#define CPU_FEATURE_AVX2 0x080
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+#define CPU_FEATURE_OSXSAVE 0x100
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static sljit_u32 cpu_feature_list = 0;
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@@ -491,6 +492,42 @@ static void execute_cpu_id(sljit_u32 info[4])
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#endif /* _MSC_VER && _MSC_VER >= 1400 */
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}
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+static sljit_u32 execute_get_xcr0_low(void)
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+{
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+ sljit_u32 xcr0;
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+
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+#if defined(_MSC_VER) && _MSC_VER >= 1400
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+
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+ xcr0 = (sljit_u32)_xgetbv(0);
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+
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+#elif defined(__GNUC__) || defined(__INTEL_COMPILER) || defined(__SUNPRO_C) || defined(__TINYC__)
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+
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+ /* AT&T syntax. */
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+ __asm__ (
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+ "xorl %%ecx, %%ecx\n"
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+ "xgetbv\n"
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+ : "=a" (xcr0)
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+ :
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+#if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32)
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+ : "ecx", "edx"
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+#else /* !SLJIT_CONFIG_X86_32 */
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+ : "rcx", "rdx"
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+#endif /* SLJIT_CONFIG_X86_32 */
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+ );
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+
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+#else /* _MSC_VER < 1400 */
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+
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+ /* Intel syntax. */
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+ __asm {
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+ mov ecx, 0
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+ xgetbv
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+ mov xcr0, eax
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+ }
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+
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+#endif /* _MSC_VER && _MSC_VER >= 1400 */
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+ return xcr0;
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+}
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+
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static void get_cpu_features(void)
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{
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sljit_u32 feature_list = CPU_FEATURE_DETECTED;
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@@ -518,6 +555,8 @@ static void get_cpu_features(void)
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if (info[2] & 0x80000)
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feature_list |= CPU_FEATURE_SSE41;
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+ if (info[2] & 0x8000000)
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+ feature_list |= CPU_FEATURE_OSXSAVE;
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if (info[2] & 0x10000000)
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feature_list |= CPU_FEATURE_AVX;
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#if (defined SLJIT_DETECT_SSE2 && SLJIT_DETECT_SSE2)
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@@ -535,6 +574,9 @@ static void get_cpu_features(void)
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if (info[2] & 0x20)
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feature_list |= CPU_FEATURE_LZCNT;
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+ if ((feature_list & CPU_FEATURE_OSXSAVE) && (execute_get_xcr0_low() & 0x4) == 0)
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+ feature_list &= ~(sljit_u32)(CPU_FEATURE_AVX | CPU_FEATURE_AVX2);
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+
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cpu_feature_list = feature_list;
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}
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18
pcre2.spec
18
pcre2.spec
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Name: pcre2
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Name: pcre2
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Version: 10.43
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Version: 10.43
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Release: 1mamba
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Release: 2mamba
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Summary: PCRE - Perl Compatible Regular Expressions
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Summary: PCRE - Perl Compatible Regular Expressions
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Group: System/Libraries
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Group: System/Libraries
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Vendor: openmamba
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Vendor: openmamba
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@ -8,6 +8,8 @@ Distribution: openmamba
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Packager: Silvan Calarco <silvan.calarco@mambasoft.it>
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Packager: Silvan Calarco <silvan.calarco@mambasoft.it>
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URL: https://github.com/PCRE2Project/pcre2
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URL: https://github.com/PCRE2Project/pcre2
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Source: https://github.com/PCRE2Project/pcre2.git/pcre2-%{version}/pcre2-%{version}.tar.bz2
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Source: https://github.com/PCRE2Project/pcre2.git/pcre2-%{version}/pcre2-%{version}.tar.bz2
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Patch0: pcre2-10.43-x86_xgetbv_feature_detection.patch
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Patch1: pcre2-10.43-fix_locking_region_in_sjlit_malloc_exec.patch
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License: BSD
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License: BSD
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## AUTOBUILDREQ-BEGIN
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## AUTOBUILDREQ-BEGIN
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BuildRequires: glibc-devel
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BuildRequires: glibc-devel
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@ -40,17 +42,18 @@ This package contains libraries and header files for developing applications tha
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%prep
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%prep
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%setup -q
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%setup -q
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cd src/sljit
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%patch 0 -p2 -b .x86_xgetbv_feature_detection
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%patch 1 -p2 -b .fix_locking_region_in_sjlit_malloc_exec
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cd ../..
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sed -i "s| man/man| share/man/man|" CMakeLists.txt
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sed -i "s| man/man| share/man/man|" CMakeLists.txt
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%build
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%build
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%cmake -d build \
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%cmake -d build \
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-DPCRE2_BUILD_PCRE2_16=ON \
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-DPCRE2_BUILD_PCRE2_16=ON \
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-DPCRE2_BUILD_PCRE2_32=ON
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-DPCRE2_BUILD_PCRE2_32=ON \
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-DPCRE2_SUPPORT_JIT=ON
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#% configure \
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# --enable-pcre2-16 \
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# --enable-pcre2-32
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%make
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%make
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@ -106,6 +109,9 @@ mv %{buildroot}/usr/cmake %{buildroot}%{_libdir}/cmake
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%doc ChangeLog NEWS README
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%doc ChangeLog NEWS README
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%changelog
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%changelog
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* Mon Apr 29 2024 Silvan Calarco <silvan.calarco@mambasoft.it> 10.43-2mamba
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- enabled JIT; added patches to fix instruction detection on x86 and thread safety problem
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* Tue Feb 20 2024 Automatic Build System <autodist@openmamba.org> 10.43-1mamba
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* Tue Feb 20 2024 Automatic Build System <autodist@openmamba.org> 10.43-1mamba
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- automatic version update by autodist
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- automatic version update by autodist
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