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[TravisCI][CMake] Add Z3_C_EXAMPLES_FORCE_CXX_LINKER CMake option

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and propagate its value into the C API examples.

This flag forces the C API examples to use the C++ compiler as the
linker rather than the C compiler. This a workaround to avoid linking
errors when building with UBSan.
This commit is contained in:
Dan Liew 2017-10-06 15:25:41 +01:00
parent 64ee9f168d
commit a9fcfc531b
5 changed files with 52 additions and 2 deletions
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11
contrib/ci/scripts/build_z3_cmake.sh
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@ -22,6 +22,7 @@ set -o pipefail
: ${USE_LTO?"USE_LTO must be specified"}
: ${Z3_INSTALL_PREFIX?"Z3_INSTALL_PREFIX must be specified"}
: ${Z3_WARNINGS_AS_ERRORS?"Z3_WARNINGS_AS_ERRORS must be specified"}
: ${UBSAN_BUILD?"UBSAN_BUILD must be specified"}
ADDITIONAL_Z3_OPTS=()
@ -105,6 +106,16 @@ fi
# Set compiler flags
source ${SCRIPT_DIR}/set_compiler_flags.sh
if [ "X${UBSAN_BUILD}" = "X1" ]; then
# HACK: When building with UBSan the C++ linker
# must be used to avoid the following linker errors.
# undefined reference to `__ubsan_vptr_type_cache'
# undefined reference to `__ubsan_handle_dynamic_type_cache_miss'
ADDITIONAL_Z3_OPTS+=( \
'-DZ3_C_EXAMPLES_FORCE_CXX_LINKER=ON' \
)
fi
# Sanity check
if [ ! -e "${Z3_SRC_DIR}/CMakeLists.txt" ]; then
echo "Z3_SRC_DIR is invalid"