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https://issues.apache.org/jira/browse/XERCESC-2194?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17052212#comment-17052212
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Rasmus Thomsen edited comment on XERCESC-2194 at 3/5/20, 2:58 PM:
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According to [the CMake
docs|https://cmake.org/cmake/help/v3.17/module/CheckTypeSize.html?highlight=i]
it might be a better idea to use {code}HAVE_${TYPE}{code} in
XercesIntTypes.cmake instead of SIZEOF_SSIZE_T to determine if it's available:
{code}
-if(SIZEOF_SIZE_T)
+if(HAVE_SIZEOF_SIZE_T)
set(XERCES_SIZE_T size_t)
set(XERCES_SIZE_MAX SIZE_MAX)
else()
set(XERCES_SIZE_T "unsigned long")
set(XERCES_SIZE_MAX ULONG_MAX)
endif()
-if(SIZEOF_SSIZE_T)
+if(HAVE_SIZEOF_SSIZE_T)
set(XERCES_SSIZE_T SIZEOF_SSIZE_T)
set(XERCES_SSIZE_MAX SSIZE_MAX)
else()
set(XERCES_SSIZE_T long)
set(XERCES_SSIZE_MAX LONG_MAX)
endif()
{code}
Or something along those lines?
was (Author: cogitri):
According to [the CMake
docs|https://cmake.org/cmake/help/v3.17/module/CheckTypeSize.html?highlight=i]
it might be a better idea to use {code}HAVE_${TYPE}{code} in
XercesIntTypes.cmake instead of SIZEOF_SSIZE_T to determine if it's available:
{code}
-if(SIZEOF_SIZE_T)
+if(HAVE_SIZEOF_OFF_T)
set(XERCES_SIZE_T size_t)
set(XERCES_SIZE_MAX SIZE_MAX)
else()
set(XERCES_SIZE_T "unsigned long")
set(XERCES_SIZE_MAX ULONG_MAX)
endif()
-if(SIZEOF_SSIZE_T)
+if(HAVE_ssize_t)
set(XERCES_SSIZE_T SIZEOF_SSIZE_T)
set(XERCES_SSIZE_MAX SSIZE_MAX)
else()
set(XERCES_SSIZE_T long)
set(XERCES_SSIZE_MAX LONG_MAX)
endif()
{code}
Or something along those lines?
> Including Xerces_autoconf_config.hpp on Windows fails due to undefined ssize_t
> ------------------------------------------------------------------------------
>
> Key: XERCESC-2194
> URL: https://issues.apache.org/jira/browse/XERCESC-2194
> Project: Xerces-C++
> Issue Type: Bug
> Components: Build
> Affects Versions: 3.2.2
> Reporter: Rasmus Thomsen
> Priority: Major
>
> When including Xerces_autoconf_config.hpp on Windows the following error
> messages:
>
> {code:cpp}
> error C4430: Fehlender Typspezifizierer - int wird angenommen. Hinweis:
> "default-int" wird von C++ nicht unterstützt.
> error C2146: Syntaxfehler: Fehlendes ";" vor Bezeichner "XMLSSize_t"
> {code}
> (Sorry that these are in German - they translate to "Missing type specifier -
> assuming int" and "syntax error: missing ";" before identifier "XMLSSize_t")
> Apparently ssize_t is a POSIX extension and as such isn't available in MSVC
> (by default?)
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