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openwrt-packages-dist/libs/postgresql/patches/700-no-arm-crc-march-change...

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postgresql: prevent addition of ARM target flag 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>
3 years ago
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  1. --- a/configure.in

  2. +++ b/configure.in

  3. @@ -2019,9 +2019,9 @@ AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [

  4.  # flags. If not, check if adding -march=armv8-a+crc flag helps.
  5.  # CFLAGS_ARMV8_CRC32C is set if the extra flag is required.
  6.  PGAC_ARMV8_CRC32C_INTRINSICS([])
  7. -if test x"$pgac_armv8_crc32c_intrinsics" != x"yes"; then

  8. -  PGAC_ARMV8_CRC32C_INTRINSICS([-march=armv8-a+crc])

  9. -fi

  10. +#if test x"$pgac_armv8_crc32c_intrinsics" != x"yes"; then

  11. +#  PGAC_ARMV8_CRC32C_INTRINSICS([-march=armv8-a+crc])

  12. +#fi

  13.  AC_SUBST(CFLAGS_ARMV8_CRC32C)
  14.  
  15.  # Select CRC-32C implementation.