hello,

I am trying to port a simple SSL client code into UEFI and am using the
OpenSsl in CryptoPkg for this.

The OpenSslSupport.h header in CryptoPkg include folder defines most of the
stdlib types and this causes a conflict when I attempt to use the StdLib
headers in my code.

Following is a sample of the error messages:
c:\edk2\CryptoPkg\Include\OpenSslSupport.h(28) : error C2373: 'FILE' :
redefinition; different type modifiers
        c:\edk2\StdLib\Include\stdio.h(255) : see declaration of 'FILE'
c:\edk2\CryptoPkg\Include\OpenSslSupport.h(47) : warning C4005: 'ENOMEM' :
macro redefinition
        c:\edk2\StdLib\Include\errno.h(64) : see previous definition of
'ENOMEM'
c:\edk2\CryptoPkg\Include\OpenSslSupport.h(48) : warning C4005: 'EINVAL' :
macro redefinition
        c:\edk2\StdLib\Include\errno.h(74) : see previous definition of
'EINVAL'
c:\edk2\CryptoPkg\Include\OpenSslSupport.h(50) : warning C4005: 'INT_MAX' :
macro redefinition
        c:\edk2\StdLib\Include\limits.h(70) : see previous definition of
'INT_MAX'
c:\edk2\CryptoPkg\Include\OpenSslSupport.h(51) : warning C4005: 'INT_MIN' :
macro redefinition
        c:\edk2\StdLib\Include\limits.h(67) : see previous definition of
'INT_MIN'
c:\edk2\CryptoPkg\Include\OpenSslSupport.h(52) : warning C4005: 'LONG_MAX'
: macro redefinition
        c:\edk2\StdLib\Include\limits.h(79) : see previous definition of
'LONG_MAX'
c:\edk2\CryptoPkg\Include\OpenSslSupport.h(53) : warning C4005: 'LONG_MIN'
: macro redefinition
        c:\edk2\StdLib\Include\limits.h(76) : see previous definition of
'LONG_MIN'
c:\edk2\CryptoPkg\Include\OpenSslSupport.h(54) : warning C4005: 'ULONG_MAX'
: macro redefinition
        c:\edk2\StdLib\Include\limits.h(82) : see previous definition of
'ULONG_MAX'
c:\edk2\CryptoPkg\Include\OpenSslSupport.h(75) : warning C4005: 'offsetof'
: macro redefinition
        c:\edk2\StdLib\Include\stddef.h(66) : see previous definition of
'offsetof'
c:\edk2\CryptoPkg\Include\OpenSslSupport.h(83) : error C2371: '__mode_t' :
redefinition; different basic types
        c:\edk2\StdLib\Include\sys/ansi.h(54) : see declaration of
'__mode_t'
c:\edk2\CryptoPkg\Include\OpenSslSupport.h(84) : warning C4142: benign
redefinition of type
c:\edk2\CryptoPkg\Include\OpenSslSupport.h(85) : error C2371: 'clock_t' :
redefinition; different basic types
        c:\edk2\StdLib\Include\sys/types.h(241) : see declaration of
'clock_t'
c:\edk2\CryptoPkg\Include\OpenSslSupport.h(88) : error C2371: 'ino_t' :
redefinition; different basic types
        c:\edk2\StdLib\Include\sys/types.h(169) : see declaration of 'ino_t'


Any ideas ?


*Saheb*
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