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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - include/__bsd_locale_fallbacks.h uses varargs but doesn't include <stdarg.h>"
href="https://bugs.llvm.org/show_bug.cgi?id=33370">33370</a>
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<th>Summary</th>
<td>include/__bsd_locale_fallbacks.h uses varargs but doesn't include <stdarg.h>
</td>
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<th>Product</th>
<td>libc++
</td>
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<th>Version</th>
<td>unspecified
</td>
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<th>Hardware</th>
<td>PC
</td>
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<th>OS</th>
<td>All
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>enhancement
</td>
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<th>Priority</th>
<td>P
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<th>Component</th>
<td>All Bugs
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
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<th>Reporter</th>
<td>michaeljclark@mac.com
</td>
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<th>CC</th>
<td>llvm-bugs@lists.llvm.org, mclow.lists@gmail.com
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<p>
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<pre>Created <span class=""><a href="attachment.cgi?id=18600" name="attach_18600" title="Patch to add #include <stdarg.h> to __bsd_locale_fallbacks.h">attachment 18600</a> <a href="attachment.cgi?id=18600&action=edit" title="Patch to add #include <stdarg.h> to __bsd_locale_fallbacks.h">[details]</a></span>
Patch to add #include <stdarg.h> to __bsd_locale_fallbacks.h
I get the following errors when compiling libcxx against musl libc headers:
In file included from third_party/libcxx/src/algorithm.cpp:11:
In file included from third_party/libcxx/include/random:1646:
In file included from third_party/libcxx/include/istream:163:
In file included from third_party/libcxx/include/ostream:140:
In file included from third_party/libcxx/include/locale:220:
third_party/libcxx/include/__bsd_locale_fallbacks.h:106:5: error: use of
undeclared
identifier 'va_start'
va_start(__va, __format);
__bsd_locale_fallbacks.h has an include <stdlib.h> but is missing <stdarg.h>
which is where varargs are defined (it may be masked on platforms that include
stdarg.h by default in stdlib.h)
The following patch fixes the issue:
--- a/include/__bsd_locale_fallbacks.h
+++ b/include/__bsd_locale_fallbacks.h
@@ -15,6 +15,7 @@
#define _LIBCPP_BSD_LOCALE_FALLBACKS_DEFAULTS_H
#include <stdlib.h>
+#include <stdarg.h>
#include <memory>
_LIBCPP_BEGIN_NAMESPACE_STD</pre>
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