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Disable LTO when checking for fsin/fcos/fldln2/... #76

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Disable LTO when checking for fsin/fcos/fldln2/... #76

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5 changes: 5 additions & 0 deletions configure.ac
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Original file line number Diff line number Diff line change
Expand Up @@ -145,6 +145,9 @@ AC_COMPILE_IFELSE(
AC_DEFINE(HAVE_SLEEP, 1, [Define to 1 if you have the ‘Sleep’ function.])],
[AC_MSG_RESULT(no)])

# Disable LTO when checking for the instructions
CFLAGS="${CFLAGS} -fno-lto"

AC_MSG_CHECKING(for fsin/fcos)
AC_COMPILE_IFELSE(
[AC_LANG_PROGRAM(
Expand All @@ -163,6 +166,8 @@ AC_COMPILE_IFELSE(
AC_DEFINE(HAVE_FLDLN2, 1, [Define to 1 if you have the ‘fldln2’ and other floating point instructions.])],
[AC_MSG_RESULT(no)])

CFLAGS="${CFLAGS%$' -fno-lto'}"

AC_CHECK_HEADERS(zlib.h)
AC_CHECK_LIB(z, gzopen, [ZLIB_LIBS="${ZLIB_LIBS} -lz"])

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