| 1 | dnl Usage: TL_AC_GXX_INCLUDE_DIR |
| 2 | dnl |
| 3 | dnl Set $gxx_include_dir to the location of the installed C++ include |
| 4 | dnl directory. The value depends on $gcc_version and the configuration |
| 5 | dnl options --with-gxx-include-dir and --enable-version-specific-runtime-libs. |
| 6 | dnl |
| 7 | dnl If you change the default here, you'll need to change the gcc and |
| 8 | dnl libstdc++-v3 subdirectories too. |
| 9 | AC_DEFUN([TL_AC_GXX_INCLUDE_DIR], |
| 10 | [ |
| 11 | case "${with_gxx_include_dir}" in |
| 12 | yes) |
| 13 | AC_MSG_ERROR([--with-gxx-include-dir=[[dir]] requires a directory]) |
| 14 | ;; |
| 15 | no | "") |
| 16 | case "${enable_version_specific_runtime_libs}" in |
| 17 | yes) gxx_include_dir='$(libsubdir)/include/c++' ;; |
| 18 | *) |
| 19 | libstdcxx_incdir='c++/$(gcc_version)' |
| 20 | gxx_include_dir='include/$(libstdcxx_incdir)' |
| 21 | if test -n "$with_cross_host" && |
| 22 | test x"$with_cross_host" != x"no"; then |
| 23 | gxx_include_dir='${prefix}/${target_alias}/'"$gxx_include_dir" |
| 24 | else |
| 25 | gxx_include_dir='${prefix}/'"$gxx_include_dir" |
| 26 | fi;; |
| 27 | esac ;; |
| 28 | *) gxx_include_dir=${with_gxx_include_dir} ;; |
| 29 | esac |
| 30 | AC_SUBST(gxx_include_dir) |
| 31 | AC_SUBST(libstdcxx_incdir) |
| 32 | ]) |