#172 How to solve the "boost library not found" in cross compile?

[Deqing Sun]

Hi,

Since the windows compiling farm is down, I'm searching for ways to build my own SDCC binary. I've used colab to build linux binary successfully.

However when I tried to build with mingw, I always get configure: error: boost library not found (boost/graph/adjacency_list.hpp). error.

https://colab.research.google.com/drive/13ntGIrvbjOACAf6Oc4rOu9vIJKQqxKaB?usp=sharing

The /usr/include/boost/graph/adjacency_list.hpp exists so apt-get install libboost-system-dev will not do anything. I also tried to add path to CPPFLAGS or CXXFLAGS with no luck.

Is there anything else I can try?

Thanks

[Philipp Klaus Krause]

You could try to put the additional include path in the CXX command, like this example for OpenBSD shows:
https://sourceforge.net/p/sdcc/wiki/OpenBSD/

[Deqing Sun]

Thank you for your help.
After checking config.log. The boost library was actually found. There was an error

fatal error: bits/libc-header-start.h: No such file or directory

But if the /usr/include/x86_64-linux-gnu/bits/libc-header-start.h get included. It generate conflicting error such as

In file included from /usr/include/inttypes.h:27:0,
                 from test.cpp:35:
/usr/include/stdint.h:116:0: warning: "__INT64_C" redefined
 #  define __INT64_C(c) c ## L

<built-in>: note: this is the location of the previous definition
In file included from /usr/include/inttypes.h:27:0,
                 from test.cpp:35:
/usr/include/stdint.h:117:0: warning: "__UINT64_C" redefined
 #  define __UINT64_C(c) c ## UL

<built-in>: note: this is the location of the previous definition
In file included from test.cpp:26:0:
/usr/include/stdio.h:71:19: error: conflicting declaration ‘typedef __ssize_t ssize_t’
 typedef __ssize_t ssize_t;
                   ^~~~~~~
In file included from /usr/share/mingw-w64/include/stddef.h:7:0,
                 from /usr/lib/gcc/x86_64-w64-mingw32/7.3-win32/include/stddef.h:1,
                 from test.cpp:24:
/usr/share/mingw-w64/include/crtdefs.h:45:35: note: previous declaration as ‘typedef long long int ssize_t’
 __MINGW_EXTENSION typedef __int64 ssize_t;
                                   ^~~~~~~
In file included from /usr/include/sys/types.h:130:0,
                 from /usr/include/stdlib.h:394,
                 from test.cpp:29:
/usr/include/bits/types/time_t.h:7:18: error: conflicting declaration ‘typedef __time_t time_t’
 typedef __time_t time_t;

I really hope there is a windows compiling example that works.

[Deqing Sun]

It seems other files in /usr/include/ should not be included.
Copy boost folder into another place and include, then it can pass the "boost library not found"