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Add glibc back compat code

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To ensure that the binaries compiled by gitian run across many linux
distributions, enforce 2.17 as the minimum libc version supported.
This commit is contained in:
TheCharlatan 2018-10-13 17:07:56 +02:00
parent 84dd674cd0
commit 5a76933903
6 changed files with 113 additions and 165 deletions
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9
CMakeLists.txt
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@ -696,6 +696,13 @@ else()
set(LD_SECURITY_FLAGS "${LD_SECURITY_FLAGS} -Wl,-z,noexecheap")
endif()
if(BACKCOMPAT)
add_definitions(-DFDELT_TYPE=long\ int)
add_linker_flag_if_supported(-Wl,--wrap=__divmoddi4 LD_BACKCOMPAT_FLAGS)
add_linker_flag_if_supported(-Wl,--wrap=glob LD_BACKCOMPAT_FLAGS)
message(STATUS "Using Lib C back compat flags: ${LD_BACKCOMPAT_FLAGS}")
endif()
# some windows linker bits
if (WIN32)
add_linker_flag_if_supported(-Wl,--dynamicbase LD_SECURITY_FLAGS)
@ -708,7 +715,7 @@ else()
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -std=c11 -D_GNU_SOURCE ${MINGW_FLAG} ${STATIC_ASSERT_FLAG} ${WARNINGS} ${C_WARNINGS} ${COVERAGE_FLAGS} ${PIC_FLAG} ${C_SECURITY_FLAGS}")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11 -D_GNU_SOURCE ${MINGW_FLAG} ${STATIC_ASSERT_CPP_FLAG} ${WARNINGS} ${CXX_WARNINGS} ${COVERAGE_FLAGS} ${PIC_FLAG} ${CXX_SECURITY_FLAGS}")
set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} ${LD_SECURITY_FLAGS}")
set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} ${LD_SECURITY_FLAGS} ${LD_BACKCOMPAT_FLAGS}")
# With GCC 6.1.1 the compiled binary malfunctions due to aliasing. Until that
# is fixed in the code (Issue #847), force compiler to be conservative.