On Mon, Mar 14, 2022 at 01:48:21PM +0100, David Seifert via Gcc-patches wrote: > Bug: https://bugs.gentoo.org/654748 > > gcc/configure.ac > * Add --enable-systemtap switch to explicitly allow for > disabling systemtap even if the target libc supports it. > --- > gcc/configure.ac | 26 ++++++++++++++++++-------- > 1 file changed, 18 insertions(+), 8 deletions(-) > > diff --git a/gcc/configure.ac b/gcc/configure.ac > index 90cad309762..7dfb9a58cdd 100644 > --- a/gcc/configure.ac > +++ b/gcc/configure.ac > @@ -6904,14 +6904,24 @@ AC_SUBST([enable_default_ssp]) > > # Test for <sys/sdt.h> on the target. > GCC_TARGET_TEMPLATE([HAVE_SYS_SDT_H]) > -AC_MSG_CHECKING(sys/sdt.h in the target C library) > -have_sys_sdt_h=no > -if test -f $target_header_dir/sys/sdt.h; then > - have_sys_sdt_h=yes > - AC_DEFINE(HAVE_SYS_SDT_H, 1, > - [Define if your target C library provides sys/sdt.h]) > -fi > -AC_MSG_RESULT($have_sys_sdt_h) > + > +AC_ARG_ENABLE([systemtap], > + [AS_HELP_STRING([--enable-systemtap], > + [enable systemtap static probe points [default=auto]])]) > + > +AS_IF([test x$enable_systemtap != xno], [ > + AC_MSG_CHECKING([sys/sdt.h in the target C library]) > + have_sys_sdt_h=no > + AS_IF([test -f "$target_header_dir/sys/sdt.h"], [ > + have_sys_sdt_h=yes > + AC_DEFINE([HAVE_SYS_SDT_H], [1], > + [Define if your target C library provides sys/sdt.h]) > + ]) > + AC_MSG_RESULT([$have_sys_sdt_h]) > + AS_IF([test x$enable_systemtap = xyes && test x$have_sys_sdt_h = xno], [ > + AC_MSG_ERROR([sys/sdt.h was not found]) > + ]) > +])
Thanks for the patch. The new configure option needs documenting in doc/install.texi, and configure needs to be regenerated. Marek
