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make.probe: probe_optimize: remove -O2

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Solaris Studio 12.5 cc seems to produce incorrect code at -O2
(a.k.a. -xO2) optimisation level; integer variables initialise at
random values, and the behaviour of the shell is so incorrect it
can't even run the test scripts. It does not support -Os so that
is skipped for that compiler. At -O it works fine.

src/cmd/INIT/make.probe:
- By default, only try -Os and -O optimisation flags.
This commit is contained in:
Martijn Dekker 2021-01-19 22:13:59 +00:00
parent 7bab9508aa
commit 820bb6a04b
1 changed files with 1 additions and 1 deletions
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src/cmd/INIT/make.probe
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@ -34,7 +34,7 @@ probe_lib_all_undef="-all -notall -all -none -Bwhole-archive -Bno-whole-archive
probe_lib_multiple="-Wl,-zmuldefs"
probe_libdir="shlib lib"
probe_nmflags="'' -p -B"
probe_optimize="-Os -O2 -O"
probe_optimize="-Os -O"
probe_pic="-Kpic -KPIC -fpic -fPIC -pic -PIC +z +Z"
probe_no_protect="'-fno-stack-protector -fno-stack-protector-all' -GS-"
probe_readonly="-R -Krodata -xMerge -Wa,-r"