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AC_DEFUN([GI_ENABLE_GCOV],
[
AC_ARG_ENABLE(gcov,
AC_HELP_STRING([--enable-gcov],
[compile with coverage profiling instrumentation (gcc only)]),
enable_gcov=$enableval,
enable_gcov=no)
if test x$enable_gcov = xyes ; then
if test "x$GCC" != "xyes"
then
AC_MSG_ERROR([gcov only works if gcc is used])
fi
AS_COMPILER_FLAG(["-fprofile-arcs"],
[GCOV_CFLAGS="$GCOV_CFLAGS -fprofile-arcs"],
true)
AS_COMPILER_FLAG(["-ftest-coverage"],
[GCOV_CFLAGS="$GCOV_CFLAGS -ftest-coverage"],
true)
dnl libtool 1.5.22 and lower strip -fprofile-arcs from the flags
dnl passed to the linker, which is a bug; -fprofile-arcs implicitly
dnl links in -lgcov, so we do it explicitly here for the same effect
GCOV_LIBS=-lgcov
AC_SUBST(GCOV_CFLAGS)
AC_SUBST(GCOV_LIBS)
GCOV=`echo $CC | sed s/gcc/gcov/g`
AC_SUBST(GCOV)
GI_GCOV_ENABLED=yes
AC_DEFINE_UNQUOTED(GI_GCOV_ENABLED, 1,
[Defined if gcov is enabled to force a rebuild due to config.h changing])
dnl if gcov is used, we do not want default -O2 CFLAGS
if test "x$GI_GCOV_ENABLED" = "xyes"
then
CFLAGS="-g -O0"
AC_SUBST(CFLAGS)
CXXFLAGS="-g -O0"
AC_SUBST(CXXFLAGS)
FFLAGS="-g -O0"
AC_SUBST(FFLAGS)
CCASFLAGS="-g -O0"
AC_SUBST(CCASFLAGS)
AC_MSG_NOTICE([gcov enabled, setting CFLAGS and friends to $CFLAGS])
fi
fi
AM_CONDITIONAL(GI_GCOV_ENABLED, test x$enable_gcov = xyes)
])
|
