| Subject: | no way to define extra functions for use in test code |
Devel::CheckLib allows a function parameter which can be used to supply
the body for the main function, which is useful for testing the library.
Unfortunately this doesn't allow testing where:
- the library API accepts function pointer for callbacks
- the library API defines macros for headers to be included
For example with libfreetype, your C code starts out something like:
#include <ft2build.h>
#include FT_FREETYPE_H
Attached, a patch that adds a prologue parameter.
| Subject: | checklib-prologue.diff |
Index: Devel/CheckLib.pm
===================================================================
--- Devel/CheckLib.pm (revision 1833)
+++ Devel/CheckLib.pm (working copy)
@@ -138,6 +138,23 @@
=back
+If you need to perform know more than "does it link?" you can provide
+code to be compiled and run:
+
+=over
+
+=item function
+
+the body of the <main()> function. If not provided C<return 0;> is
+used.
+
+=item prologue
+
+code to insert between the C<#include> of the headers and the
+definition of main.
+
+=back
+
=head2 check_lib_or_exit
This behaves exactly the same as C<assert_lib()> except that instead of
@@ -281,6 +298,7 @@
'assertlibXXXXXXXX', SUFFIX => '.c'
);
print $ch qq{#include <$_>\n} foreach (@headers);
+ print $ch "\n$args{prologue}\n" if $args{prologue};
print $ch "int main(void) { ".($args{function} || 'return 0;')." }\n";
close($ch);
for my $link_cfg ( @link_cfgs ) {