diff options
Diffstat (limited to 'trunk/m4/program_invocation_name.m4')
| -rw-r--r-- | trunk/m4/program_invocation_name.m4 | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/trunk/m4/program_invocation_name.m4 b/trunk/m4/program_invocation_name.m4 new file mode 100644 index 0000000..6161f66 --- /dev/null +++ b/trunk/m4/program_invocation_name.m4 @@ -0,0 +1,19 @@ +# We need to be careful to avoid having the reference to +# program_invocation_name optimized out. We do that by +# returning the value. + +AC_DEFUN([AC_PROGRAM_INVOCATION_NAME], + [AC_CACHE_CHECK( + for program_invocation_name, + ac_cv_have_program_invocation_name, + AC_TRY_LINK([extern char* program_invocation_name;], + [return *program_invocation_name;], + [ac_cv_have_program_invocation_name=yes], + [ac_cv_have_program_invocation_name=no]) + ) + if test "$ac_cv_have_program_invocation_name" = "yes"; then + AC_DEFINE(HAVE_PROGRAM_INVOCATION_NAME, 1, + [define if libc has program_invocation_name]) + fi + ]) + |