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AC_DEFUN([PDNS_ENABLE_COVERAGE], [
AC_MSG_CHECKING([whether to enable code coverage])
AC_ARG_ENABLE([coverage],
AS_HELP_STRING([--enable-coverage],
[enable code coverage @<:@default=no@:>@]),
[enable_coverage=$enableval],
[enable_coverage=no]
)
AC_MSG_RESULT([$enable_coverage])
AS_IF([test "x$enable_coverage" = "xclang"], [
dnl let's see if the clang++ specific format is supported,
dnl as it has a much lower overhead and is more accurate,
dnl see https://clang.llvm.org/docs/SourceBasedCodeCoverage.html
gl_COMPILER_OPTION_IF([-fprofile-instr-generate -fcoverage-mapping], [
CFLAGS="$CFLAGS -DCOVERAGE -DCLANG_COVERAGE -fprofile-instr-generate -fcoverage-mapping"
CXXFLAGS="$CXXFLAGS -DCOVERAGE -DCLANG_COVERAGE -fprofile-instr-generate -fcoverage-mapping"
], [
AC_MSG_ERROR([$CXX does not support gathering coverage data in the clang format])
])
])
AS_IF([test "x$enable_coverage" = "xyes"], [
gl_COMPILER_OPTION_IF([-fprofile-arcs -ftest-coverage], [
CFLAGS="$CFLAGS -DCOVERAGE --coverage"
CXXFLAGS="$CXXFLAGS -DCOVERAGE --coverage"
LDFLAGS="$LDFLAGS --coverage"
], [
AC_MSG_ERROR([$CXX does not support gathering coverage data])
])
])
])
|
