Bug#632472: clang: defines SSE macros with -m32 on amd64

[brian m. carlson]

Package: clang
Version: 2.9-7
Severity: normal

clang unconditionally defines macros for SSE and SSE2 on amd64.  This is
problematic when compiling with -m32, since not all i386 systems have
SSE functionality; a program might fail with an illegal instruction if
compiled on a 64-bit system for a 32-bit system.

lakeview ok % gcc -m32 -std=c99 -E -dM - </dev/null | grep SSE 
lakeview no % clang -m32 -std=c99 -E -dM - </dev/null | grep SSE
#define __SSE2_MATH__ 1
#define __SSE2__ 1
#define __SSE_MATH__ 1
#define __SSE__ 1


-- System Information:
Debian Release: wheezy/sid
  APT prefers unstable
  APT policy: (500, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 3.0.0-rc4-amd64 (SMP w/2 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages clang depends on:
ii  libc6                         2.13-7     Embedded GNU C Library: Shared lib
ii  libffi5                       3.0.9-7    Foreign Function Interface library
ii  libgcc1                       1:4.6.1-1  GCC support library
ii  libllvm2.9                    2.9+dfsg-3 Low-Level Virtual Machine (LLVM), 
ii  libstdc++6                    4.6.1-1    GNU Standard C++ Library v3
ii  libstdc++6-4.5-dev            4.5.3-3    The GNU Standard C++ Library v3 (d

Versions of packages clang recommends:
ii  llvm-2.9-dev                  2.9+dfsg-3 Low-Level Virtual Machine (LLVM), 
ii  python                        2.6.6-14   interactive high-level object-orie

clang suggests no packages.

-- no debconf information

-- 
brian m. carlson / brian with sandals: Houston, Texas, US
+1 832 623 2791 | http://www.crustytoothpaste.net/~bmc | My opinion only
OpenPGP: RSA v4 4096b: 88AC E9B2 9196 305B A994 7552 F1BA 225C 0223 B187
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