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change macOS to not use "-dead_strip_dylibs" when CUSTOM is defined

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Under macOS, to reduce dependency chains, we remove functions and
data that are unreachable by the entry point or exported symbols.
In particular, the macOS linker is used with "-dead_strip".

While calc on macOS will execute if linker used with "-dead_strip_dylibs"
and CUSTOM is defined, other applications that use libcalc but not
libcustcalc (such as sample_many and sample_rand) will fail to execute
due to missile symbols.  Therefore "-dead_strip_dylibs" is not used
by default when ALLOW_CUSTOM is "-DCUSTOM" under macOS.
This commit is contained in:
Landon Curt Noll
2023-08-14 17:08:28 -07:00
parent af9b052fe9
commit 7d8d4cb5ea
5 changed files with 34 additions and 24 deletions
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10
calc.c
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@@ -166,6 +166,11 @@ main(int argc, char **argv)
#if defined(CUSTOM)
/*
* validate custtbl_allowed value
*
* We make an explicit reference to the custtbl_allowed symbol
* in libcustcalc (see custom/custtbl.c) so that the use
* of "-dead_strip_dylibs" with the macOS linker won't cause
* the calc to fail to load due to a missing symbol.
*/
if (custtbl_allowed == 0) {
fprintf(stderr, "%s: calc was built with "
@@ -183,6 +188,11 @@ main(int argc, char **argv)
#else /* CUSTOM */
/*
* validate custtbl_allowed value
*
* We make an explicit reference to the custtbl_allowed symbol
* in libcustcalc (see custom/custtbl.c) so that the use
* of "-dead_strip_dylibs" with the macOS linker won't cause
* the calc to fail to load due to a missing symbol.
*/
if (custtbl_allowed != 0) {
fprintf(stderr, "%s: calc was built with "