build: add -Mdse to PGI optimisation flags

Enable dead store elimination.  The last few releases work no worse
with this flag than without.  Older versions failed to build some
source files when using this flag.

Signed-off-by: Mans Rullgard <mans@mansr.com>
pull/6/head
Mans Rullgard 12 years ago
parent c9b10cc4db
commit 8f23907f3e
  1. 2
      configure

2
configure vendored

@ -2329,7 +2329,7 @@ probe_cc(){
elif $_cc -V 2>&1 | grep -q Portland; then
_type=pgi
_ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
opt_common='-alias=ansi -Mlre -Mpre'
opt_common='-alias=ansi -Mdse -Mlre -Mpre'
_cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
_cflags_size="-O2 -Munroll=c:1 $opt_common"
_cflags_noopt="-O1"

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