RepoMirrors
/
musl
mirror of git://git.musl-libc.org/musl
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

make configure attempt to catch broken floating point CFLAGS/defaults

This commit is contained in:
Rich Felker 2016-02-17 13:53:54 -05:00
parent cf115059ba
commit 80fbaac4cd
1 changed files with 10 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
configure vendored
View File

@ -655,6 +655,16 @@ printf "no\n"
fail "$0: error: unsupported long double type"
fi
#
# Some build systems globally pass in broken CFLAGS like -ffast-math
# for all packages. On recent GCC we can detect this and error out
# early rather than producing a seriously-broken math library.
#
if trycppif "__FAST_MATH__ || (defined(__GCC_IEC_559) && __GCC_IEC_559==0)" \
"$CFLAGS_C99FSE $CPPFLAGS $CFLAGS" ; then
fail "$0: error: compiler has broken floating point; check CFLAGS"
fi
printf "creating config.mak... "
cmdline=$(quote "$0")