| dnl Usage: TL_AC_GXX_INCLUDE_DIR |
| dnl |
| dnl Set $gxx_include_dir to the location of the installed C++ include |
| dnl directory. The value depends on $gcc_version and the configuration |
| dnl options --with-gxx-include-dir and --enable-version-specific-runtime-libs. |
| dnl |
| dnl If you change the default here, you'll need to change the gcc and |
| dnl libstdc++-v3 subdirectories too. |
| AC_DEFUN([TL_AC_GXX_INCLUDE_DIR], |
| [ |
| case "${with_gxx_include_dir}" in |
| yes) |
| AC_MSG_ERROR([--with-gxx-include-dir=[[dir]] requires a directory]) |
| ;; |
| no | "") |
| case "${enable_version_specific_runtime_libs}" in |
| yes) gxx_include_dir='$(libsubdir)/include/c++' ;; |
| *) |
| libstdcxx_incdir='c++/$(gcc_version)' |
| gxx_include_dir='$(prefix)/include/$(libstdcxx_incdir)' ;; |
| esac ;; |
| *) gxx_include_dir=${with_gxx_include_dir} ;; |
| esac |
| AC_SUBST(gxx_include_dir) |
| AC_SUBST(libstdcxx_incdir) |
| ]) |
