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- From d170b19e500d85381369e379771be8d7816bcc92 Mon Sep 17 00:00:00 2001
- From: Adam Duskett <Aduskett@gmail.com>
- Date: Tue, 21 Jul 2020 13:08:50 -0700
- Subject: [PATCH] force position independent code
- Without this option, programs building for arm64 or x86-64 will fail when
- attempting to link to the built libraries with the following (abbreviated)
- error:
- "relocation against `.rodata' can not be used when making a shared object;
- recompile with -fPIC."
- Because libabseil-cpp builds static libraries, it is better to set the
- POSITION_INDEPENDENT_CODE to ON instead of forcing fPIC, as forcing fPIC may
- cause relocation errors when shared libraries link against the built static
- libraries.
- Signed-off-by: Adam Duskett <Aduskett@gmail.com>
- ---
- CMake/AbseilHelpers.cmake | 2 ++
- 1 file changed, 2 insertions(+)
- diff --git a/CMake/AbseilHelpers.cmake b/CMake/AbseilHelpers.cmake
- index 86ff9eb..bdb7a89 100644
- --- a/CMake/AbseilHelpers.cmake
- +++ b/CMake/AbseilHelpers.cmake
- @@ -209,6 +209,8 @@ function(absl_cc_library)
- set_property(TARGET ${_NAME} PROPERTY CXX_STANDARD ${ABSL_CXX_STANDARD})
- set_property(TARGET ${_NAME} PROPERTY CXX_STANDARD_REQUIRED ON)
-
- + # Without this setting, other programs such as GRPC will fail when linking.
- + set_property(TARGET ${_NAME} PROPERTY POSITION_INDEPENDENT_CODE ON)
- # When being installed, we lose the absl_ prefix. We want to put it back
- # to have properly named lib files. This is a no-op when we are not being
- # installed.
- --
- 2.26.2
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