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Use a unique prefix for SWIG_CException_Raise()

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This allows using different modules generated by SWIG in the same
process without conflicts.
This commit is contained in:
Vadim Zeitlin 2021-11-26 02:34:09 +01:00
commit c7fa9126ce
1 changed files with 8 additions and 0 deletions
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8
Source/Modules/c.cxx
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@ -1390,6 +1390,14 @@ public:
// Deal with exceptions support.
if (exceptions_support_ == exceptions_support_enabled) {
// Redefine SWIG_CException_Raise() to have a unique prefix in the shared library built from SWIG-generated sources to allow using more than one extension
// in the same process without conflicts. This has to be done in this hackish way because we really need to change the name of the function itself, not
// its wrapper (which is not even generated).
Printv(f_runtime,
"#define SWIG_CException_Raise ", (ns_prefix ? ns_prefix : module_name), "_SWIG_CException_Raise\n",
NIL
);
// We need to check if we have any %imported modules, as they would already define the exception support code and we want to have exactly one copy of it
// in the generated shared library, so check for "import" nodes.
if (find_first_named_import(n)) {