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Compile time test and run time test for sufficiently recent libjte if enabled.

This commit is contained in:
Thomas Schmitt 2010-10-04 14:56:24 +02:00
parent 16dcf4a29c
commit d2094a0d80
2 changed files with 44 additions and 0 deletions
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9
libisofs/libisofs.h
View File

@ -1848,6 +1848,15 @@ int iso_write_opts_set_part_offset(IsoWriteOpts *opts,
int secs_512_per_head, int heads_per_cyl);
/** The minimum version of libjte to be used with this version of libisofs
at compile time. The use of libjte is optional and depends on configure
tests. It can be prevented by ./configure option --disable-libjte .
@since 0.6.36
*/
#define iso_libjte_req_major 0
#define iso_libjte_req_minor 1
#define iso_libjte_req_micro 0
/**
* Associate a libjte environment object to the upcomming write run.
* libjte implements Jigdo Template Extraction as of Steve McIntyre and

35
libisofs/messages.c
View File

@ -75,6 +75,41 @@ struct libiso_msgs *libiso_msgr = NULL;
int iso_init_with_flag(int flag)
{
#ifdef Libisofs_with_libjtE
/* Ugly compile time check for header version compatibility.
If everthing matches, then it produces no C code. In case of mismatch,
intentionally faulty C code will be inserted.
*/
/* The indendation is an advise of man gcc to help old compilers ignoring */
#if iso_libjte_req_major > LIBJTE_VERSION_MAJOR
#define Libisofs_libjte_dot_h_too_olD 1
#endif
#if iso_libjte_req_major == LIBJTE_VERSION_MAJOR && iso_libjte_req_minor > LIBJTE_VERSION_MINOR
#define Libisofs_libjte_dot_h_too_olD 1
#endif
#if iso_libjte_req_minor == LIBJTE_VERSION_MINOR && iso_libjte_req_micro > LIBJTE_VERSION_MICRO
#define Libisofs_libjte_dot_h_too_olD 1
#endif
#ifdef Libisofs_libjte_dot_h_too_olD
LIBJTE_MISCONFIGURATION = 0;
INTENTIONAL_ABORT_OF_COMPILATION__HEADERFILE_libjte_dot_h_TOO_OLD__SEE_libisofs_dot_h_AND_messages_c = 0;
LIBJTE_MISCONFIGURATION_ = 0;
#endif
if (! libjte__is_compatible(LIBJTE_VERSION_MAJOR, LIBJTE_VERSION_MINOR,
LIBJTE_VERSION_MICRO, 0)) {
fprintf(stderr,
"\nlibisofs: libjte TOO OLD ! Need at least libjte-%d.%d.%d\n\n",
LIBJTE_VERSION_MAJOR, LIBJTE_VERSION_MINOR,
LIBJTE_VERSION_MICRO);
return ISO_FATAL_ERROR;
}
#endif /* Libisofs_with_libjtE */
if (! (flag & 1)) {
iso_init_locale(0);
}