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16 lines
383 B
Plaintext
16 lines
383 B
Plaintext
dnl check if the build is using lto. This is really primitive and only detects llvm based
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dnl compilers right now.
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AC_DEFUN([MOZ_DOING_LTO],
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[
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cat > conftest.c <<EOF
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int foo = 1;
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EOF
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$1=no
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if ${CC-cc} ${CFLAGS} -S conftest.c -o conftest.s >/dev/null 2>&1; then
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if grep '^target triple =' conftest.s; then
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$1=yes
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fi
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fi
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rm -f conftest.[cs]
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])
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