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authorSzabolcs Nagy <nsz@port70.net>2017-09-17 15:35:55 +0000
committerRich Felker <dalias@aerifal.cx>2018-02-07 15:43:33 -0500
commit249b621f9efeb8c47f34b698875c54c9c3108df3 (patch)
tree7bb785cb55fa4a8c6deea5c31ba064a83e48e5aa /configure
parent23ddab8569ef8ae3488c1d67b6bccaa081c73245 (diff)
downloadmusl-249b621f9efeb8c47f34b698875c54c9c3108df3.tar.gz
better configure check for long double support
Diffstat (limited to 'configure')
-rwxr-xr-xconfigure5
1 files changed, 2 insertions, 3 deletions
diff --git a/configure b/configure
index 02b736ce..501a7219 100755
--- a/configure
+++ b/configure
@@ -706,9 +706,8 @@ esac
#
printf "checking whether compiler's long double definition matches float.h... "
echo '#include <float.h>' > "$tmpc"
-echo '#if LDBL_MANT_DIG == 53' >> "$tmpc"
-echo 'typedef char ldcheck[9-(int)sizeof(long double)];' >> "$tmpc"
-echo '#endif' >> "$tmpc"
+echo '#define C(m,s) (m==LDBL_MANT_DIG && s==sizeof(long double))' >> "$tmpc"
+echo 'typedef char ldcheck[(C(53,8)||C(64,12)||C(64,16)||C(113,16))*2-1];' >> "$tmpc"
if $CC $CFLAGS_C99FSE \
-I$srcdir/arch/$ARCH -I$srcdir/arch/generic -I$srcdir/include \
$CPPFLAGS $CFLAGS -c -o /dev/null "$tmpc" >/dev/null 2>&1 ; then