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Support source-to-object compilation in a DESTDIR 

If environment variable 'gtm_destdir' is set, treat it as a prefix to be
removed from any source file paths contained inside it.  This will allow
sources to be compiled in a DESTDIR for packaging such that the object
files will find their sources in the final install prefix after
distribution.
This commit is contained in:
Brad King 2012-06-18 14:18:32 -04:00
parent 9e807f2434
commit 74aa25e075
1 changed files with 13 additions and 0 deletions
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13
sr_unix/obj_source.c
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@ -1,3 +1,5 @@
#include "gtm_stdlib.h"
#include "gtm_string.h"
#include "mdef.h"
#include "obj_source.h"
@ -8,5 +10,16 @@ GBLREF unsigned short source_name_len;
struct obj_source get_obj_source(void)
{
struct obj_source sn = {source_file_name, source_name_len};
char* gtm_destdir = getenv("gtm_destdir");
if(gtm_destdir)
{
/* Strip the destdir prefix from sources inside it. */
size_t const ddlen = strlen(gtm_destdir);
if(strncmp(sn.name, gtm_destdir, ddlen) == 0)
{
sn.name += ddlen;
sn.len -= ddlen;
}
}
return sn;
}