kc3-lang/libbsd

diff --git a/configure.ac b/configure.ac
index 0304f57..54da101 100644
--- a/configure.ac
+++ b/configure.ac
@@ -45,6 +45,15 @@ AC_CHECK_DECL([F_CLOSEM],
                #include <fcntl.h>])
 
 # Checks for library functions.
+AC_MSG_CHECKING([for program_invocation_short_name])
+AC_LINK_IFELSE(
+	[AC_LANG_PROGRAM([[#include <errno.h>]],
+	                 [[const char *p = program_invocation_short_name;]])],
+	[AC_DEFINE([HAVE_PROGRAM_INVOCATION_SHORT_NAME], [1],
+	           [Define to 1 if you have program_invocation_short_name])
+	 AC_MSG_RESULT([yes])],
+	[AC_MSG_RESULT([no])])
+
 AC_MSG_CHECKING([for __progname])
 AC_LINK_IFELSE(
 	[AC_LANG_PROGRAM([[]],
diff --git a/src/progname.c b/src/progname.c
index 4d0fee7..9bc5e4b 100644
--- a/src/progname.c
+++ b/src/progname.c
@@ -42,7 +42,7 @@ static const char *__progname = NULL;
 const char *
 getprogname(void)
 {
-#ifdef __GLIBC__
+#if defined(HAVE_PROGRAM_INVOCATION_SHORT_NAME)
 	if (__progname == NULL)
 		__progname = program_invocation_short_name;
 #elif defined(HAVE_GETEXECNAME)