path: root/mcon/U/d_proginvocname.U
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+?RCS: Copyright (c) 2015 Raphael Manfredi
+?RCS: You may redistribute only under the terms of the Artistic License,
+?RCS: as specified in the README file that comes with the distribution.
+?RCS: You may reuse parts of this distribution only within the terms of
+?RCS: that same Artistic License; a copy of which may be found at the root
+?RCS: of the source tree for dist 4.0.
+?MAKE:d_proginvocname: Trylink cat
+?MAKE: -pick add $@ %<
+?S: This variable conditionally defines the HAS_PROGRAM_INVOCATION_NAME
+?S: symbol, which indicates to the C program that the two variables
+?S: program_invocation_name and program_invocation_short_name are set
+?S: at startup time.
+?C: This symbol is defined when the C startup sets the two variables
+?C: program_invocation_name and program_invocation_short_name. To get
+?C: these definitions, <errno.h> must be included with __USE_GNU defined.
+?LINT: set d_proginvocname
+: do we have the program_invocation_name variable?
+$cat >try.c <<EOC
+#include <stdio.h>
+#define __USE_GNU
+#include <errno.h>
+int main(void)
+ printf("%s\n%s\n", program_invocation_name, program_invocation_short_name);
+ return 0;
+cyn="whether C startup sets program_invocation_name"
+set d_proginvocname
+eval $trylink