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configure: set -fno-pie together with -fno-PIE

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OpenBSD 5.9 apparently defaults to -fpie. We use -fno-PIE when appropriate
already, but that is not enough - it does not turn off -fpie.

Actually check for -fPIE is not precise enough. __PIE__ is set for both
-fpie and -fPIE but with different values. As far as I can tell, both
options were introduced at the same time, so both should always be supported.

This fixes compilation on OpenBSD 5.9 which otherwise created insanely big
lzma_decompress.img.

Reported, suggested and tested by: Jiri B <jirib@devio.us>
This commit is contained in:
Andrei Borzenkov 2016-03-22 20:12:22 +03:00
parent 6714d7ecff
commit f4d35d49e3
1 changed files with 2 additions and 2 deletions
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4
configure.ac
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@ -1185,9 +1185,9 @@ CFLAGS="$TARGET_CFLAGS"
# Position independent executable.
grub_CHECK_PIE
[# Need that, because some distributions ship compilers that include
# `-fPIE' in the default specs.
# `-fPIE' or '-fpie' in the default specs.
if [ x"$pie_possible" = xyes ]; then
TARGET_CFLAGS="$TARGET_CFLAGS -fno-PIE"
TARGET_CFLAGS="$TARGET_CFLAGS -fno-PIE -fno-pie"
fi]
CFLAGS="$TARGET_CFLAGS"