Package: lcms2
Version: 2.2+git20110628-2
Severity: important
Tags: upstream patch
Justification: fails to build from source (but built successfully in the past)
User: [email protected]
Usertags: sparc64
The memory allocator of lcms2 tries to get the returned pointer aligned
by using the _cmsALIGNLONG macro, but this macro is designed to handle
the I/O alignement in ICC files, not the host addresses alignment.
On 64-bit architectures without unaligned access, it means the pointers
are aligned to 4 bytes instead of 8 bytes, causing SIGBUS in the
testsuite.
The patch below fixes the problem by aligning on the pointer size. Would
it be possible to include it in the next upload? Thanks in advance.
--- lcms2-2.2+git20110628.orig/src/cmscgats.c
+++ lcms2-2.2+git20110628/src/cmscgats.c
@@ -982,7 +982,7 @@ void* AllocChunk(cmsIT8* it8, cmsUInt32N
cmsUInt32Number Free = it8 ->Allocator.BlockSize - it8 ->Allocator.Used;
cmsUInt8Number* ptr;
- size = _cmsALIGNLONG(size);
+ size = (size + (sizeof(void *) - 1)) & ~(sizeof(void *) - 1);
if (size > Free) {
-- System Information:
Debian Release: wheezy/sid
APT prefers unstable
APT policy: (500, 'unstable')
Architecture: sparc64
Kernel: Linux 2.6.32-bpo.5-sparc64-smp (SMP w/32 CPU cores)
Locale: LANG=fr_FR.UTF-8, LC_CTYPE=fr_FR.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash
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