9ba7d16a1e
configure.in checks for "ARMv8 CRC32C intrinsics" and goes as far as adding "-march=armv8-a+crc" to the target flags if the compiler allows it. This can clash with the OpenWrt target flags in CONFIG_TARGET_OPTIMIZATION. If for example the latter is set to "-mcpu=cortex-a9" the following warning is issued: cc1: warning: switch '-mcpu=cortex-a9' conflicts with '-march=armv5t' switch This commit prevents configure.in from adding the mentioned flag. The addition is unwanted when cross-compiling. An issue was raised for this recently, see [1]. [1] https://github.com/openwrt/packages/issues/16034 Signed-off-by: Sebastian Kemper <sebastian_ml@gmx.net>
15 lines
563 B
Diff
15 lines
563 B
Diff
--- a/configure.in
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+++ b/configure.in
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@@ -2019,9 +2019,9 @@ AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [
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# flags. If not, check if adding -march=armv8-a+crc flag helps.
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# CFLAGS_ARMV8_CRC32C is set if the extra flag is required.
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PGAC_ARMV8_CRC32C_INTRINSICS([])
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-if test x"$pgac_armv8_crc32c_intrinsics" != x"yes"; then
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- PGAC_ARMV8_CRC32C_INTRINSICS([-march=armv8-a+crc])
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-fi
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+#if test x"$pgac_armv8_crc32c_intrinsics" != x"yes"; then
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+# PGAC_ARMV8_CRC32C_INTRINSICS([-march=armv8-a+crc])
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+#fi
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AC_SUBST(CFLAGS_ARMV8_CRC32C)
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# Select CRC-32C implementation.
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