Please, take a look at this patch. https://gcc.gnu.org/pipermail/gcc-patches/2025-January/674641.html Ping: David Seifert, Joseph Myers
Trying to compile libcc1 plugin in native RISC-V GCC build on X86 > I bumped into the problem that gcc_cv_objdump variable > was not defined in libcc1/configure, because it has definition > only in gcc/configure.ac. > > In my case, it leads to problem that -rdynamic check is failed > and it disables libcc1 build. > > I propose to use libtool inferred variable for common configs. > --- > config/gcc-plugin.m4 | 6 +++++- > gcc/configure | 6 +++++- > libcc1/configure | 6 +++++- > 3 files changed, 15 insertions(+), 3 deletions(-) > > diff --git a/config/gcc-plugin.m4 b/config/gcc-plugin.m4 > index c30cfdd8fad..5c59bdddc28 100644 > --- a/config/gcc-plugin.m4 > +++ b/config/gcc-plugin.m4 > @@ -47,7 +47,11 @@ AC_DEFUN([GCC_ENABLE_PLUGINS], > if test x$build = x$host; then > export_sym_check="$ac_cv_prog_OBJDUMP -T" > elif test x$host = x$target; then > - export_sym_check="$gcc_cv_objdump -T" > + if test x$gcc_cv_objdump != x; then > + export_sym_check="$gcc_cv_objdump -T" > + else > + export_sym_check="$ac_cv_prog_OBJDUMP -T" > + fi > else > export_sym_check="$ac_cv_prog_OBJDUMP -T" > fi > diff --git a/gcc/configure b/gcc/configure > index b4c52de6218..d69eb1746a6 100755 > --- a/gcc/configure > +++ b/gcc/configure > @@ -34106,7 +34106,11 @@ fi > if test x$build = x$host; then > export_sym_check="$ac_cv_prog_OBJDUMP -T" > elif test x$host = x$target; then > - export_sym_check="$gcc_cv_objdump -T" > + if test x$gcc_cv_objdump != x; then > + export_sym_check="$gcc_cv_objdump -T" > + else > + export_sym_check="$ac_cv_prog_OBJDUMP -T" > + fi > else > export_sym_check="$ac_cv_prog_OBJDUMP -T" > fi > diff --git a/libcc1/configure b/libcc1/configure > index ea689a353c8..82fc9674543 100755 > --- a/libcc1/configure > +++ b/libcc1/configure > @@ -15220,7 +15220,11 @@ fi > if test x$build = x$host; then > export_sym_check="$ac_cv_prog_OBJDUMP -T" > elif test x$host = x$target; then > - export_sym_check="$gcc_cv_objdump -T" > + if test x$gcc_cv_objdump != x; then > + export_sym_check="$gcc_cv_objdump -T" > + else > + export_sym_check="$ac_cv_prog_OBJDUMP -T" > + fi > else > export_sym_check="$ac_cv_prog_OBJDUMP -T" > fi > -- > 2.43.0 > >
